Base64 Decode API. Decode standard or URL-safe Base64 and return UTF-8 text when possible, hex output, validity, and output length. Useful for agents, developers, token inspection, API debugging, decoding workflows, data transformation, and automation tasks. Paid per call via x402.

Full text and open-access PDF retrieval for a paper. Given an arXiv id, DOI, OpenAlex id, PMID, or PMCID, returns the readable body split into sections (introduction, methods, results) plus the open-access PDF location: arXiv via ar5iv, biomedical via Europe PMC, OA locations via OpenAlex for the rest. The 'now read it' call after a paper search. Keyless.

Crawl a website from a seed URL up to configurable depth and page limits — multi-page crawler returning structured HTML-to-markdown content for AI agents

API request: /api/v1/developer/wallet/balances/history

Search users by keyword

Live stock/index/FX/crypto quote: last price, day range, 52-week range, previous close, currency, exchange, and a relative change vs. previous close, as clean JSON. Backed by Yahoo Finance's public chart endpoint - keyless, no rate limits in pract...

PDL Company Enrich - Enrich a company record with firmographics, industry codes, funding, and social profiles. Supports lookup by name, website, ticker, LinkedIn, or PDL ID.

Paginated list of all indexed x402 resources

Recent posts/videos ingest via SociaVault — POST { platform, handle?, cursor? }. Returns platform-native posts feed with pagination cursor when available. x402 settlement USDC per request (see npm run pricing:report).

Instant AI research on any topic powered by Gemini 3.5 Flash with live Google Search grounding — answers come with cited sources. Ask about science, tech, crypto, history, or anything else. Can analyze images and summarize webpages from URLs. Max 180 character prompts. $0.10 per query.

List Predict.Fun markets with filtering and sorting

Search 30M+ Hacker News stories and comments via the Algolia HN index. Filter by type (story/comment/poll), author, minimum points, and ISO-8601 date range; sort by relevance or recency. Returns title, author, points, comment count, and URL.

Fetch a Reddit post, subreddit, or user by ref

Domain Health Check API. Check domain DNS, MX, SPF, DMARC, and email configuration health and receive a structured JSON score with issues and recommendations. Useful for agents, developers, email deliverability checks, domain diagnostics, infrastructure investigation, and security workflows. Paid per call via x402.

Real-time weather data and 3-day forecast for any location worldwide. Accepts city name or lat/lon coordinates. Returns temperature, humidity, wind, precipitation, and conditions. Powered by Open-Meteo.

Search supported ERC-20 tokens by symbol or address across 6 chains (Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche). 5000+ tokens from CoinGecko. Use before swap/bridge to disambiguate tokens.

Is USDC/USDT/DAI holding its $1 peg, and is stablecoin supply growing or shrinking (risk-on vs risk-off)? Live peg deviation (bps), circulating supply + 1d/7d/30d flow, market dominance and chain spread for the top 30 USD stablecoins, plus downside depeg alerts for any coin trading >0.5% below peg. Sourced from DefiLlama (public). Refreshed hourly.

Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.

Base X profile mini-endpoint. Fetches a full X profile and the 10 most recent tweets for a given handle, returning the raw profile data plus a trimmed tweet list with key engagement metrics and media. Cost: 0.001 USDC per request.

Diff two web pages or compare a URL against a stored snapshot — change detection and web monitoring with structured diff output for AI agents