Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); GitHub - Ruthwik-Data/tokenleak: Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out. · GitHub
Skip to content

Repository files navigation

TokenLeak

CI

Find the bugs behind your LLM bill spikes.

TokenLeak is a local-first CLI that analyzes LLM usage logs and shows where your token budget leaked — expensive models, costly endpoints, runaway sessions, repeated agent loops, long prompts, and sudden cost spikes.

No dashboard. No SaaS. No API key required. Logs in, leak report out.

Install

pip install tokenleak

Usage

# Analyze a usage CSV
tokenleak analyze usage.csv
# Compare against a previous period (spot spikes)
tokenleak analyze usage.csv --compare previous.csv
# Auto-detect and normalize any supported format, then analyze
tokenleak analyze-real raw_export.csv --compare raw_previous.csv --out reports/
# Save the report to a file or directory
tokenleak analyze usage.csv --out report.txt
# Use your own price table
tokenleak analyze usage.csv --pricing my_pricing.json

Supported CSV formats

analyze-real auto-detects and normalizes these:

OpenAI-style exporttimestamp,model,input_tokens,output_tokens,num_requests[,cost_usd]Generic app logstimestamp,model,route,user,session,prompt_tokens,completion_tokens[,cost]TokenLeak nativetimestamp,model,endpoint,session_id,tokens_in,tokens_out[,cost]

If a row has no cost column, TokenLeak computes it from the pricing table.

Example output

$ tokenleak analyze-real examples/openai_usage.csv
TOTAL COST
----------------------------------------------------------------------
Current: $0.59
Requests: 7
Tokens (in): 82,000
Tokens (out): 9,200
TOP EXPENSIVE MODELS
----------------------------------------------------------------------
1. gpt-5.5 $0.58 ( 98.9%)
2. gpt-5-mini $0.01 ( 1.1%)
⚠️ LONG PROMPT WARNING
----------------------------------------------------------------------
Average input tokens: 11,714
Consider chunking or summarizing inputs

Pricing

Costs come from a bundled, dated pricing.json with 2026 rates in USD per 1M tokens, sourced from official provider docs (Anthropic, OpenAI, Google). Model names are prefix-matched longest-key-first, so a specific version (gpt-5.5) is never shadowed by a shorter prefix (gpt-5).

  • A model that isn't in the table is priced at a documented fallback rate and flagged with an ⚠️ ESTIMATED (UNKNOWN) MODELS warning — never a silent guess.
  • Override or extend the rates with your own file: --pricing my_pricing.json (its models merge over the bundled ones).

Architecture

  • pricing.py — load/merge the price table; get_cost()(cost, is_estimated).
  • analyzer.py — pure logic: load, validate, normalize, analyze, compare.
  • report.py — formats the plain-text report.
  • cli.py — Click commands (analyze, analyze-real).

Development

pip install -e ".[dev]"
pytest
ruff check .

License

MIT — see LICENSE.

About

Local CLI that pinpoints why your LLM bill spiked — runaway agent loops, silent model swaps, bloated prompts, costly endpoints. Logs in, report out.

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages