A finished report, cited and delivered.
Due-diligence dossier, 13F fund report, domain security audit, deep research. Every claim cited to a live source, PDF and data appendix included, refunded if it fails. Or subscribe and get the re-run in your inbox when something moves.
Free previews from the filings: insider trades by ticker · fund holdings (13F) · company dossiers
Find a tool, pay the 402, get JSON.
Resolve any task in one free call, then pay per request in USDC on 12 chains or natively over MPP on Tempo. Free tier by proof-of-work. Discoverable from llms.txt, openapi.json, .well-known/x402 and the MCP connector.
Or pay with CPU instead.
no wallet · no signup · runs in this tabThe pure-CPU tools are payable in compute: the server issues a signed sha256 puzzle, you burn a fraction of a second solving it, and the call is served free. This is not a diagram - press the button and your browser will fetch a real challenge from the live server, solve it here, and make a real paid call.
Sell into the agent economy.
free listing · nothing deducted · non-custodialAgents are already buying, and they cannot fill in a signup form. If you run an API - or a site AI crawlers keep scraping for free - the same rails that let them buy let you charge. Money moves buyer wallet → your wallet. Nothing sits in between.
Get routed by the Smart Order Router
Serve x402 challenges, register your origin, and the index crawler picks you up hourly. You get ranked next to 561 of our own tools by match score, then health, then price - and a public leaderboard row once your on-chain volume shows up.
# or paste your origin below - same call, no terminal needed
curl -X POST https://agent402.tools/api/index/register \
-H 'content-type: application/json' \
-d '{"origin":"https://api.you.com"}'
Charge AI crawlers per page
Humans browse free; known bots get 402 Payment Required and either pay in USDC or solve a proof-of-work. The open, crypto-native answer to closed pay-per-crawl: no CDN lock-in, no merchant-of-record, no signup.
# express · next.js · cloudflare · proxy · wordpress
npm i agent402-tollbooth
Gate your crawlers →
13 of 30,534 paid calls (under 0.1%) came through the router, which is the only path Agent402 earns on. Every other paid call went buyer wallet to seller wallet.
The open index for every seller.
hourly on-chain snapshot · Bazaar → eth_getLogs → aggregate by payToEvery x402 seller we can crawl, ranked by real Base USDC settled volume - not self-reported traffic. include=external excludes us from our own ranking, because a neutral index has to be checkable.
Settled on every rail, not just Base.
calls settled per rail · live from /api/statsAll 12 rails carry real settled traffic, not just the headline one. Buyers pay on the chain they already hold stablecoins on, gas is sponsored on EVM, and the router pays external sellers on that same chain.
What agents actually pay for.
lanes shown · figures are a paid readSettlements are on chain, but which tool an agent bought is not - so this is the one demand signal no block explorer can reconstruct. Here are the lanes agents spend most in. The full per-tool ranking is itself a paid tool.
Questions people and agents ask.
What is agentic finance?
+
Agentic finance (AIFI for short) is software agents transacting on their own: discovering a service, paying per request from a non-custodial wallet over open protocols such as x402 and MPP, receiving a verifiable receipt, and earning per request in return. Agent402 is its applied layer: the tools agents buy, the index and Smart Order Router that find and pay the best seller, the tollbooth that lets any site earn from agents, and on-chain transparency for all of it. Full explainer at /agentic-finance.
How do I sell my API for USDC per call?
+
Register your origin in the "Sell into the agent economy" section above, or read the full seller guide at /sell for pricing, routing and health details. If your site is not x402-native yet, agent402-tollbooth is an open pay-per-crawl gate you can install instead.
Do I need a wallet to try it?
+
No. The pure-CPU tools are payable in compute: your own machine solves a single-use, slug-scoped sha256 proof-of-work instead of paying, which costs about a second of CPU. A wallet only matters for tools that cost real money to run, and those quote their price in the 402 challenge before anything is charged.
Can I pay by card instead of crypto?
+
Yes. Finished, cited reports at /reports ($2 to $5 by card, auto-refunded if a report fails), monitors at /monitors ($5 a month, cancel anytime), and prepaid credits at /credits: buy $20, $50 or $100 once, get a key, and call any tool with Authorization: Bearer a402_..., debited only when a call succeeds. The card price includes payment processing: Stripe charges 2.9% + $0.30 per charge, so under about a dollar the fee costs more than the report. An agent paying per call in USDC over x402 or MPP pays the lower tool price for the same report.
What is a report, and what if it fails?
+
A report is a finished deliverable, not a chat answer: live data (SEC EDGAR, openFDA, your domain's DNS and TLS, grounded web search) composed and synthesized with every claim cited, plus a downloadable data appendix and PDF. Payment is verified before anything is generated; if generation fails after payment, the card is refunded automatically and the x402 settlement is cancelled.
Is it open source, and can I run my own?
+
Yes. The server is AGPL-3.0 and self-hostable; the client SDK, MCP connector and tollbooth packages are MIT. Clone it and run FREE_MODE=true npm start for all tools as an HTTP API plus MCP, with no payments and no keys.
More, including data handling and the OpenAI-compatible gateway: /faq