The marketplace where AI agents buy skills
It starts with your API: turn any endpoint (or MCP tool) into a paid, agent-callable x402 URL. Publish for free, get paid per call, settled non-custodially on Base and Stellar.
Live x402 settlement on Base + Stellar · measured cost from ~$0.0006/settle · verify the splitter on-chain ↗
We're in alpha — and we want your API_
endpoint.farm is brand new, and we're hunting for developers to publish their first paid endpoints. Bring any API and we'll personally help you ship it — for free. White-glove onboarding, a direct line to the people building this, and we'll fix anything that gets in your way. No crypto experience needed.
Why endpoint.farm
Publish in minutes
Point us at any existing API URL and we mint a paid, agent-callable x402 endpoint in front of it. No rebuild, no new SDK on your side, and it's free to list.
Built for agents
Buyers and AI agents pay per call with an x402 payment signature — no accounts, no API keys, no invoices. The 402 challenge carries your price and the chains you accept.
Non-custodial settlement
An immutable on-chain splitter pays you your price and us our fee in one atomic transaction. We never hold, route, or touch your revenue.
How it works
Every call settles itself. An agent pays per request over x402, an immutable on-chain contract splits the payment, and your API's response comes straight back — endpoint.farm never holds or routes your money.
Agent calls your URL
The first request gets a 402 Payment Required carrying your price, the USDC asset, and the chains you accept.
It pays per call
The agent signs a USDC x402 payment for that exact request and retries — no accounts, no API keys, no invoices.
The splitter settles
An immutable on-chain splitter pays you your price and us our fee in one atomic transaction. We never hold, route, or touch your revenue — it's non-custodial by construction.
Your API responds
Once payment is verified, we forward the original request to your endpoint and stream the response straight back to the caller.
What you can sell
Any HTTP API or MCP server you already run can become a paid, agent-callable endpoint. A few of the things providers wrap:
Crypto & wallet data
High agent demand, and buyers already hold USDC.
AI utilities
Per-call pricing maps cleanly to per-call inference cost.
Web extraction
The classic paid-API shape — trivial to put behind x402.
File parsing
Clear per-call value, and exactly what agents reach for.
Business & registry lookups
Sub-cent, high-frequency calls — settle on Stellar for near-zero fees.
Paid MCP agent tools
Wrap an MCP server and price each tool — the agent pays per tools/call.
Chains we settle on
USDC settlement on two networks today, on testnet and mainnet. Adding a chain is a new module behind the same payment seam — never a rewrite.
Base
EVMUSDC via EIP-3009 transfer authorizations, settled through an immutable Solidity splitter.
eip155:8453 · eip155:84532
Stellar
SorobanUSDC via Soroban authorization entries, settled through a Soroban splitter contract.
stellar:pubnet · stellar:testnet
Pricing
Free to publish — keep 100% of your price
Listing is free and you set your own price per call. endpoint.farm adds a flat 10% protocol fee on top of your price — the buyer pays it, not you — with a $0.005 USDC minimum per call, so a paid request never settles at a loss.
That floor is set from live on-chain settlement cost we measure ourselves: about $0.0015 per settle on Base and $0.0006 on Stellar.
Profit calculator
You keep 100% of your price — the fee rides on top, paid by the buyer. See what one endpoint earns at your volume.
Protocol fee is 10% on top of your price (minimum $0.005 per call) and is paid by the buyer — it never comes out of your revenue.
How to get onboarded
Sign in
No password — request a magic link from the login page and you're in.
Add your API
Give us the endpoint's URL and method, set a price per call, pick Base and/or Stellar, and add the wallet you want paid to.
Publish
We mint your paid x402 URL and can list it in the public marketplace for agents to discover.
Get paid
Agents call and pay per request; the on-chain splitter settles USDC straight to your wallet, non-custodially.
Marketplace
Public, agent-readable listings from the discovery feed.