Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Ethereum mainnet native ETH balance for an address via LlamaRPC (no API key)
Ethereum mainnet native ETH balance for an address via LlamaRPC (no API key). Returns wei, eth, and optional USD value.
Ethereum transaction details and receipt by hash via LlamaRPC
Ethereum transaction details and receipt by hash via LlamaRPC. Returns from, to, value, gas, status, block, logs count,
Look up arXiv preprint metadata
Look up arXiv preprint metadata. Returns title, authors, abstract, publish/update dates, categories, PDF URL, DOI, comme
Convert any DOI to BibTeX format via doi.org content negotiation
Convert any DOI to BibTeX format via doi.org content negotiation. Returns ready-to-paste BibTeX entry. Use ?doi=10.1038/
Look up scholarly metadata for any DOI via CrossRef
Look up scholarly metadata for any DOI via CrossRef. Returns title, authors, journal, publication date, abstract, citati
Format any DOI into a styled citation (apa, mla, chicago, ieee, harvard, vancouver)
Format any DOI into a styled citation (apa, mla, chicago, ieee, harvard, vancouver). Returns plain-text bibliography str
WCAG contrast ratio calculator, accessibility checker, color contrast, a11y, WCAG 2.1 AA AAA, text contrast, color blindness, readable text color
WCAG contrast ratio calculator, accessibility checker, color contrast, a11y, WCAG 2.1 AA AAA, text contrast, color blind
Hex to RGB converter, color converter, hex color parser, #FF0000 to rgb, 3-digit hex, 6-digit hex, web color decode
Hex to RGB converter, color converter, hex color parser, #FF0000 to rgb, 3-digit hex, 6-digit hex, web color decode. Con
Random color generator, random hex, random RGB, random HSL, color picker, batch colors, pleasant random color, vibrant colors
Random color generator, random hex, random RGB, random HSL, color picker, batch colors, pleasant random color, vibrant c
Monitor stablecoin peg deviation, collateral health, and depeg risk in real time
discover rss feed, find rss feed, rss autodiscovery, find atom feed, discover feeds from URL, rss feed finder, detect rss feed, rss feed discovery, atom feed discovery, website rss feeds, extract f...
discover rss feed, find rss feed, rss autodiscovery, find atom feed, discover feeds from URL, rss feed finder, detect rs
rss feed parser, rss parser, parse rss feed, rss feed parse, parse rss, rss to json, atom feed parser, parse atom feed, RSS 2.0 parser, Atom 1.0 parser, xml feed parser, feed parser API, rss feed r...
rss feed parser, rss parser, parse rss feed, rss feed parse, parse rss, rss to json, atom feed parser, parse atom feed,
podcast rss parser, podcast feed parser, iTunes podcast feed, podcast metadata API, podcast episode extractor, podcast audio URL extractor
podcast rss parser, podcast feed parser, iTunes podcast feed, podcast metadata API, podcast episode extractor, podcast a
Convert an amount between currencies at current ECB rate
Convert an amount between currencies at current ECB rate. Returns input amount, target amount, rate, date. Use ?amount=1
Crypto price history over a window (CoinGecko free)
Crypto price history over a window (CoinGecko free). Returns daily price series (open/close per day), market cap, volume
Current crypto prices via CoinGecko (free tier)
Current crypto prices via CoinGecko (free tier). Returns price in vs_currency, 24h change, market cap, volume, last upda
Real-time forex rates from the European Central Bank (via Frankfurter)
Real-time forex rates from the European Central Bank (via Frankfurter). Returns base currency, rates against one or more
Historical forex rate for a specific date (ECB data via Frankfurter)
Historical forex rate for a specific date (ECB data via Frankfurter). Returns rates for the requested date, going back t
Detect real-time crypto arbitrage opportunities across centralized exchanges
Generate consistent avatar URLs for any name/seed via DiceBear (19 styles incl
Generate consistent avatar URLs for any name/seed via DiceBear (19 styles incl. bottts, avataaars, pixel-art, lorelei) o
Track DeFi TVL trends, chain dominance, and capital rotation signals
Suggest typo corrections for an email address
Suggest typo corrections for an email address. Catches domain typos (gmial.com → gmail.com) and TLD typos (.con → .com)
Check if a username is taken across 10 developer platforms (GitHub, GitLab, Reddit, HackerNews, dev.to, Medium, npm, PyPI, StackOverflow, ProductHunt)
Check if a username is taken across 10 developer platforms (GitHub, GitLab, Reddit, HackerNews, dev.to, Medium, npm, PyP