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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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GitHub - MatrixA/chain_index: A unified Blockchains' info repo for Python · GitHub
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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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 - MatrixA/chain_index: A unified Blockchains' info repo for Python · GitHub
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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages

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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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 - MatrixA/chain_index: A unified Blockchains' info repo for Python · GitHub
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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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 - MatrixA/chain_index: A unified Blockchains' info repo for Python · GitHub
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Repository files navigation

chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

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 - MatrixA/chain_index: A unified Blockchains' info repo for Python · GitHub
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chain-index

chain-index is a Python package for retrieving blockchain network metadata and common token information from local JSON snapshots.

It supports lookups by chain ID, chain name, alias, and short name, and exposes helpers for native, wrapped-native, and common token access.

Installation

pip install chain-index

Import the package as chain_index:

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokens

Quick Start

fromchain_indeximportget_chain_info, get_token_info, get_all_chain_tokensethereum=get_chain_info(1)
print(ethereum.name)
print(ethereum.nativeCurrency.symbol)
usdt=get_token_info(1, "USDT")
print(usdt.contract)
tokens=get_all_chain_tokens(1)
print(tokens.get_token("ETH").contract)
print(tokens.get_token("WETH").contract)

API Overview

get_chain_info(chain_identifier)

Returns a ChainInfo model for a chain ID, decimal string, hex string, chain name, alias, or short name.

get_token_info(chain_id, symbol)

Returns a TokenInfo model for a common token on the requested chain.

get_chain_tokens(chain_id)

Returns a dictionary of common token symbols to TokenInfo models for the requested chain.

get_all_chain_tokens(chain_id)

Returns a ChainTokens helper that includes:

  • the native token
  • the wrapped native token when available
  • all configured common tokens

Development

pip install -e ".[dev]"
pytest

Data Sources

This project uses chain metadata derived from chainid.network.

Contributing

Open an issue or submit a pull request in this repository.

Changelog

See CHANGELOG.md for notable changes.

License

This project is licensed under the MIT License. See LICENSE for details.

About

A unified Blockchains' info repo for Python

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages