US Department of Justice press releases from the justice.gov public RSS feed (keyword filter on title/summary). Latest items only. Public feed, no key.

Top 50 dapps from DappRadar's public rankings page: rank, name, token symbol, chains, market cap, token price, price change, trading volume, unique active wallets (UAW) and TVL, for 24h/7d/30d, optionally for one chain (eth, solana, bnb, base, polygon, arbitrum, tron...). Values in USD as shown by DappRadar; missing values are null. Public page, no key.

Checks an IPv4 address against the Tor Project's bulk exit list (about 1,200 active exit IPs). If it is an exit, adds the relays for that address from Onionoo: nickname, flags, country, first and last seen. Only exit IPs are on the list; a relay's other IPs are not checked.

Checks whether a host (domain or IP) is known to abuse.ch URLhaus as a malware distribution host: first seen, number of malware URLs, Spamhaus DBL / SURBL status and the latest URLs with status (online/offline), threat type, tags, reporter and URLhaus reference.

Checks an IPv4 address against the public X4BNet list of commercial VPN provider address ranges (about 11,000 CIDR blocks, refreshed by the list's maintainer). Returns whether the address falls in a listed VPN range and which range. A miss does not prove a direct connection, and IPv6 is not covered.

Domain registration facts via RDAP (IANA bootstrap, then the registry's own server): registration, last change and expiry dates, days left, registrar name, status flags, nameservers and DNSSEC delegation flag. Registrant contact data is usually redacted by registries and is not returned.

DataCite DOI search (public REST API, no key): DOI, title, publication year, resource type, publisher, creators and landing page for datasets, software and other research outputs. Metadata only.

Checks a certificate SHA-1 fingerprint (40 hex characters) against the abuse.ch SSL Blacklist of certificates seen on malware botnet C2 servers. A hit returns the date added and the malware reason from the list. Only certificates this list tracks are covered.

Turn unstructured text into structured JSON matching a caller-supplied schema using Claude Haiku — the agent declares the fields and types it wants, and gets back populated JSON with values pulled from the text and coerced to the right types, so agents can structure any prose into the exact shape their pipeline expects.

Latest Benzinga financial news (the public JSON feed behind benzinga.com): headline, teaser, author, time, URL, tickers, channels and tags. Filter by stock tickers (e.g. AAPL,TSLA) and/or words in the headline/teaser. Newest first, up to 100 stories; no paging into older news, no full article text. Public, no key.

Call OpenAI's gpt-5-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Fetch any article or web page and extract clean readable text stripped of navigation, ads, and boilerplate — returns the main content body, word count, estimated reading time, detected language, and key sentences so agents can read the web without a browser or third-party scraping service. For JS-rendered or bot-walled pages a plain fetch can't read, use /exa/contents.

Classify text into your own categories — zero-shot: supply 2–20 labels and Claude Haiku returns the best-matching category with confidence and per-label scores. Route, tag, triage, and detect intent or topic with your own taxonomy in one call.

Counterparty due-diligence for any Base or Ethereum wallet — age, funding origin, USDC flow, activity pattern, and risk flags in one scored report. The domain-report of wallets: wallet age, first funder, in/out totals, distinct counterparties, 30d activity shape, contract-or-EOA, score + A–F grade. An empty or fresh wallet is a real answer (low score + flags). 5min cache.

Parse a PDF to text and Markdown: send a PDF url or base64 file, get clean Markdown with paragraphs rebuilt from the text layer, per-page character offsets for citing pages, metadata (title, author, dates, page count) and the page numbers that are scanned images with no text layer. Up to 50 pages per call. Text layer only, no OCR: an image-only PDF returns an uncharged 422.

Turn event fields into a valid RFC 5545 .ics calendar file — handles timed and all-day events, escaping, line folding, and a deterministic UID for idempotent re-import — so agents can publish events that import cleanly into Google, Apple, and Outlook calendars. Add ?download=1 (or Accept: text/calendar) to receive the raw .ics file with a Content-Disposition attachment header instead of the JSON envelope. Pure compute, no LLM.

Call OpenAI's gpt-4o-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.4-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

OpenAI-compatible chat completions gateway (alias of /v1/chat/completions for api/v1-style base URLs) — standard request shape, model chosen in the body: any gpt-* chat model (not Claude/embeddings), each at its own price. Priced per model, $0.005–$0.65 per call in USDC via x402, no API key: POST unpaid and the 402 quotes your model's exact price. Supports response_format json_object. Free model catalog: GET /v1/models.

Historical OHLC candles for any major crypto asset — hourly or daily, up to 300 candles, with period stats (change %, high, low) — from Coinbase Exchange with Kraken fallback, no API key. Also a price-at-date mode: pass date=YYYY-MM-DD for that day's candle and close. USD, EUR, or GBP quotes; 5min cache.