Check if a domain name is available for registration by querying RDAP and DNS — pass a bare name (e.g. mybrand) to sweep it across 10 popular TLDs simultaneously, or a full domain (e.g. mybrand.com) to check that single domain — returns registration status, expiry date if registered, and available/taken TLD lists so agents can find the best domain for a brand or project.

Query the crt.sh certificate transparency log database to enumerate all SSL certificates ever issued for a domain — returns subdomains discovered, certificate issuers, validity periods, and a risk score flagging wildcard certs, expiring certs, and suspicious issuance patterns.

Roll a dice with any number of faces. Specify faces via ?faces=N query parameter.

Web search for AI agents — one query in, ranked live results out (title, url, published_date, author, score, optional snippets). Neural + keyword modes, category/domain/date filters. For a direct answer use /exa/answer. Keyless x402, pay per call on Base or Solana.

IP reputation and malicious-IP check — screens an address against AbuseIPDB and AlienVault OTX threat feeds and returns a composite risk score, threat categories, malware families, and full source data.

Extract named entities from text using Claude Haiku — people, organizations, locations, dates, emails, URLs, money amounts, and products — returned as structured typed arrays so agents can pull structured signals out of unstructured text in one call.

Fetch a World Bank indicator time series for a country (e.g. GDP, inflation, unemployment, population). Open data, no key.

Get current delay information for a specific airport

Fetch and parse a domain's robots.txt file — returns all crawl rules by user-agent, sitemap URLs, crawl delay settings, and checks whether a specific path is allowed or blocked for any bot — so agents can respect crawl policies and locate sitemaps before scraping.

Follows a URL through its full redirect chain (up to 20 hops), recording status codes, timing, headers, TLS status, and protocol downgrades per hop, then returns an overall redirect health grade (A–F).

Check if a password has appeared in known data breaches using the HaveIBeenPwned Pwned Passwords API with k-anonymity — the full password is never transmitted, only a 5-character SHA-1 hash prefix — returns breach count and a risk classification so agents can enforce password policies without storing or exposing credentials.

Extract a public PDF (by HTTPS URL or base64) into clean Markdown - headings and tables preserved via layout-aware parsing, plus title/author/page count/date metadata and a real token count. Text content itself is never generated or altered, only its structure is inferred. Try GET /pdf/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.

Fetch any public URL and extract structured metadata — Open Graph tags, Twitter Card tags, canonical URL, title, description, favicon, article author/date, JSON-LD structured data, and content type — so agents can preview, classify, and enrich links without building their own scraper.

Returns cited land use, acreage, year built and legal jurisdiction for an address or jurisdiction-scoped parcel id. Returns the same records as locus_parcel_lookup. Use this when your client can only call paid x402 routes. Use locus-parcel-value instead when you need assessed value and sale fields from the resolved official parcel. Wired official parcel sources only. No owner or mailing fields.

Prediction market odds: live Polymarket markets on any topic (elections, Fed rate cuts, crypto, sports, AI, geopolitics) with the probability each outcome implies as a percentage, plus volume, liquidity and end date. Search by topic words or tickers (BTC, 'fed rate cut') or take the biggest markets. A topic no open market matches is refused free, never sold empty. Input: optional query, limit. One market by slug: prediction.market.

Stock price / live stock quote for any US ticker: last price, change, day range, volume and market state, plus daily OHLCV history (1d to 5y), read at call time from Nasdaq's public data with Yahoo Finance as fallback. Every answer names its source, the source's timestamp, its delay in minutes and when it was read. Input: symbol (AAPL, NVDA...); optional range, include_history.

Reloadpi — Voucher purchase schema. Returns request format, recipient fields, priceType handling, and example for POST /vouchers/purchase.

Reloadpi — Topup purchase schema. Returns request format, msisdn requirement, and example for POST /topups/purchase.

Fetch metadata for any npm package — download counts, latest version, version count, dependency/devDependency counts, maintainers, repository URL, license, and a health score based on maintenance signals — so agents can evaluate dependencies, audit package ecosystems, and assess supply chain risk. (Returns counts, not the full version/dependency lists.)

Convert any amount between 32 fiat currencies (live European Central Bank rates) and major cryptocurrencies (BTC, ETH, USDC, SOL, ICP, CELO and more, live Coinbase spot rates) — fiat↔fiat, crypto↔fiat, and crypto↔crypto all work. Returns converted amount, exchange rate, inverse rate, rate date, and rate source so agents can price and invoice across fiat and crypto without a paid forex API.