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The x402 directory
The directory is a map of the x402 ecosystem: the paid APIs agents can buy from, and the facilitators, SDKs and tools around them. It tracks 4.6K projects with 123.5K paid endpoints, which handled 1.1M paid calls in the last 30 days. Anyone can browse it, and agents can search it for free.
What's in it
| Paid services | APIs and content you pay for per request. 4.6K |
| Facilitators | Verify and settle payments on-chain. 16 |
| SDKs | Libraries for adding x402 to clients and servers. 4 |
| Extensions | Identity, receipts, refunds and more. 6 |
| Explorers & directories | Track activity and find services. 5 |
Paid services make up most of it. Each one is a single project per website, with all of its paid endpoints inside. Autonomo's own gateways, including the official APIs, are listed here too.
Finding an API
- Search by what you need, such as weather, image generation or token price. It looks at names, descriptions, websites and tags.
- Filter by category and by network. Each filter shows how many projects it has, and filters combine with a search.
- Sort by Most used (paid calls in the last 30 days, the default), Newest, Cheapest (lowest price per call) or A–Z. When you search, Relevance is added and used first.
- Tags on a project page, like
#weather, open a search for similar projects.
The header links go straight to Facilitators and SDKs.
What a project page shows
- Its name, description and links to its website, docs and GitHub, where known.
- Its category, the networks it takes payment on, its starting price and its paid calls in the last 30 days.
- Paid endpoints: each endpoint's method and path, what it does, its price per request, network, facilitator and paid calls over 30 days, busiest first (up to 500).
- A Verified badge on Autonomo gateways whose provider holds the required amount of $AUTONOMO. It shows they hold the token; it isn't a review of the API.
Where the data comes from
- Paid services come from the Coinbase CDP and PayAI Bazaar discovery catalogs, which list the x402 endpoints their facilitators have settled payments for. Endpoints are grouped into one project per host.
- Autonomo gateways appear once their owner requests a listing from the dashboard and it is approved.
- Ecosystem projects, such as facilitators, SDKs, extensions and explorers, are added and checked by hand.
- Usage numbers are paid calls reported by facilitators over the last 30 days.
- The catalogs are re-imported every 3 days, so new endpoints can take a few days to appear. Testnet-only services are hidden.
A project being listed doesn't mean Autonomo has reviewed it. Check an API before you rely on it.
Getting your project in, or fixing it
- You have an API and no x402 yet: launch it from the dashboard and request a listing. See Launch from the dashboard.
- You run x402 already: register with a facilitator that supports Bazaar discovery and it's imported automatically, or use the launch form. See Run x402 yourself.
- You build an SDK, facilitator, wallet or tool: send it through the launch form.
- Something's wrong or out of date: open the project page and choose Suggest an edit. Edits are reviewed by hand, and a corrected name or category is kept when the catalogs refresh.
Using it from code
The same directory is available as a free JSON API: no key, open CORS, cached for 5 minutes. Search projects, fetch one project with its endpoints, or get the totals.
const res = await fetch("https://autonomo.fun/api/v1/projects?q=weather&network=base&sort=price&limit=5");
const { data } = await res.json(); // name, website, category, networks, minPriceUsd, calls30d, ...Every endpoint and parameter is on the API reference. To pay for the APIs you find, see Use Autonomo from your agent.