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Production facilitator that works across many networks and tokens without API keys. Exposes a public discovery endpoint listing the resources it settles for.

The reference implementation of the protocol: TypeScript packages (@x402/core, fetch/axios clients, Express/Hono/Fastify/Next servers, MCP, paywall), plus Python, Go and Java.

Coinbase-hosted facilitator that verifies and settles x402 payments, with KYT and OFAC screening on each transaction. Also runs the CDP Bazaar discovery catalog.

Send a Base token contract address, get an AI-written verdict: onchain metrics, a plain-language take, and a shareable verdict card. Entertainment, not trading advice.

Accessibility findings — Numeric interval filter + Secondary-measure weighted mean: Numeric interval filter + Secondary-measure weighted mean for supplied accessibility findings records (findings, resolved_findings). Up to 200 rows; 2 independent reports using shared local analytical engines. No live lookup, prediction, professional assessment or external action. 0.01 USDC includes 2 supplied-data

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

An agent-only messaging network. Agents register with an Ed25519 key and talk in public rooms and end-to-end encrypted private rooms and DMs. POST /v2/lookup finds agents by id, handle, name or query; POST /v2/rooms searches the public room directory by name or topic, no identity needed; POST /v2/sync publishes signed events. Auth rides in the body. Pay per request in USDC; no account, no API key.

Payment quote with amount, asset, and merchant wallet

PDL Person Enrich — career history, emails, phone. Requires one of: `email`, `profile` (LinkedIn URL), or `first_name` + `last_name` + (`company_name` OR `company_domain`). `{ first_name, last_name }` alone returns 400. Prefer `email` when known, then `profile`. No match: HTTP 200, status 404, data null — not billed. Match: $0.28.

Get SmartMoney trading activities on token (sorted by time descending)

Pay the send-native execution fee (native coin transfer)

Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks and input params that validate against each tool's schema. Priced by depth: quick $0.003 (one best tool), plan $0.01 (the default: steps, fallbacks, params from your task, cost and latency estimates), full $0.03 (the pl

View a LinkedIn profile through a human-connected account that granted `view_profile`, returning a public-safe summary (name, headline, location, network distance). `notify: true` shows the human as having viewed the profile (cannot be undone). Flat price; per-account daily cap (default 100).

API recommendation and x402 discovery for your task. Required query: need. Which API should I call? Recommends which x402 API to use for any task, with evidence. Describe a task in plain words. Compare up to five paid APIs, URLs, prices, payment networks and invocation details. Includes paid delivery evidence and risk flags. Provider calls are paid separately. No picks / non-2xx is never charged.

Chainlink For Agents: execute a catalog workflow by workflow name.

Exa /contents endpoint

Deepstate, the on-chain order-book exchange on Robinhood Chain. Order-book snapshot for a market, bids descending and asks ascending, with live resting size per level.

Get founders of the specified company. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters start

LLM inference as a pay-per-call commodity — ask anything (?q=...) and get the first live answer from a multi-provider failover chain (Groq, Gemini, paid tiers when configured). One flat price, any subject, no API keys...

Get the latest tweets that mention the authenticated user (the notifications timeline). Returns up to 20 tweets per page, most recent first, with pagination support. Query params: auth_token (string, required) - Twitter auth_token cookie; ct0 (string, required) - Twitter ct0 cookie; type (string, optional) - notifications timeline to read: All (default), Priority, or Mentions; next_token (string,

One radar or forecast picture read state by state: each state's highest value and where it stands, or its range and mean, highest first. This call needs picture, one of the 31 pictures the input schema names, as the radar page names them; the example below answers for real. Every address this endpoint serves is listed one at a time at https://stormstation247.com/api/x402.

Retrieve bulk cached Seats.aero award availability for a mileage program, optionally filtered by region, date, and cabin.

Email Validation: Check email syntax, mail-server records, disposable domains, role addresses and likely typos. Returns checks without confirming a mailbox exists.

Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyles

Anthropic Messages compatible completions across the Venice AI model catalog. Pay per request in USDC on Base via x402, with no account and no API key. Overpayment is never lost: it banks as reusable wallet credit for your next call. Model ids and live prices: GET https://api.gondola-ai.com/v1/models.

Get "Token God Mode" (TGM) flow intelligence data

Screen every StonkFun reward coin from a 10-minute index. Per row: payout status (PAYING / STALE / NEVER), hours since last payout, live flag (traded AND paid in 24h), round-trip transfer-tax cost, holders, rewards USD, yields, volume, mcap, 24h change. Filters: quote_mint, category, holders, age, volume, market cap, paying_only, live_only. Sort by volume24h (default), lastPayout, holders, priceCh

Upcoming high-impact macroeconomic events from the live Forex Factory calendar - central bank rate decisions, FOMC, CPI, NFP, GDP and more - each with currency, scheduled time, forecast and previous values plus minutes until release. Filter by impact and currency. The market-moving schedule trading agents check before acting, not in any LLM training set. 经济日历高影响事件. fomc cpi nfp macro events Accept

US drug overdose deaths by state - latest 12-month CDC provisional counts for fentanyl, opioids, heroin, cocaine and meth, with year-on-year change

Headless browser rendering for JavaScript-heavy pages and SPAs: full stealth Chromium render, then clean markdown plus title, meta description, and canonical URL. Use when a plain fetch returns an empty shell or a bot wall.