Get leaderboard for a specific market

Find tickers by free-text `?search=` (name or symbol) across asset classes via `?market=stocks|crypto|fx|indices` (default stocks), with optional `?type=`, `?exchange=`, `?active=`, `?limit=`. Returns symbol, name, market, exchange, type, and identifiers. Use to discover crypto pairs (X:BTCUSD), FX pairs (C:EURUSD), and index symbols (I:SPX). From x402stock

Check a citation before repeating it. Give a DOI, an arXiv ID or a paper title; the answer says whether the work exists, what it is (title, authors, year, container) and whether it has been retracted. A title that is absent from both Crossref and arXiv returns not_found, and a near title match is never reported as verified. Cited to the source record with its retrieval time. Verdicts: verified, ambiguous, retracted, not_found, unknown.

$0.0005/MB. Re-encode audio to another format, bitrate, or sample rate — mp3, aac, wav, flac and more. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

$0.001/page. Recompress and linearize a PDF — smaller files, fast web view. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Check whether a domain or email address is trustworthy before you contact it, sign it up, or trust it. Returns a trusted/caution/high_risk/unknown verdict with reasons, based on DNS and mail health (MX, SPF, DMARC), domain age and registrar (RDAP), and disposable, free-provider and typo-lookalike flags. Accepts a domain, URL or email address.

A daily rotating spotlight on one paid x402 endpoint from the ForgeMesh fleet: what it does, what it costs, its input schema, a sample response, and the exact call to make. Deterministic by UTC date, so agents and humans checking on the same day see the same pick. Optional date parameter (YYYY-MM-DD) previews past or future days. One call, one new capability discovered.

$0.0005/MB. Speed up or slow down audio/video — pitch-preserving by default. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Base block header: number, timestamp, transaction count and base fee for the latest or a given block. Result carries a signed receipt.

Full detail for one autonomous AI trading bot in the registry: linked on-chain wallets, pre-committed strategy attestations (missions), verifiable PnL and alpha vs a HODL benchmark, plus recent on-chain trade activity. Track record is derived from on-chain transfers, not self-reported.

Raw on-chain registry event log for one autonomous AI trading bot: registrations, wallet links, pre-committed strategy attestations (missions), and challenges. The verifiable audit trail behind a bot's track record.

$0.001/page. Fill or flatten PDF forms programmatically — field values in, finished PDF out. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Clean page text for up to 3 URLs in one call via Exa's index + live crawl — works on JS-rendered and bot-walled pages that direct fetch can't read. Returns title, author, published_date and text per URL, with per-URL status. Pairs with /exa/search (search → contents). No API key, pay per call on Base or Solana.

One call combines domain email authentication (SPF/DKIM/DMARC), email-address intelligence (deliverability, disposable/role detection), and an optional password breach check into a single email-trust report — each section run concurrently with graceful partial-failure handling — so agents can fully vet an email and its domain in one request.

One premium call returns a complete six-part domain profile — DNS records, SSL certificate, WHOIS registration, cloud fingerprint, technology stack, and security headers — each section run concurrently with graceful partial-failure handling, so agents get an entire domain workup in a single request instead of orchestrating six.

Call OpenAI's gpt-4.1 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.09 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.1 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.15 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Composite 0-100 trust/risk score for a domain in one call — blends domain age, SSL/TLS, DNS health, email auth (SPF/DKIM/DMARC), IP reputation, and certificate transparency into a single "safe to do business with this domain?" verdict with per-signal breakdown and actionable flags. Partial results never read as safe.

Call OpenAI's gpt-5.6-sol via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.65 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Fetch public metadata for any GitHub repository — stars, forks, open issues, language breakdown, license, contributors, last commit date, topics, and an activity/health score — so agents can evaluate dependencies, research projects, and assess open source health without the GitHub API complexity. Pass repo as ?repo=owner/repo (GET) or {"repo":"owner/repo"} (POST).