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Live on Robinhood Chain and Base

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LaunchyourAPI.
Let agents pay.

Turn any API into a pay-per-call product. AI agents find it, pay in USDC, and get the answer. No keys, no signups, no invoices.

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What you can do here

Everything agents and builders need, in one place

Sell an API, buy one per call, check a token before you ape, and watch the market. All live today.

API marketplace

Live

Paid APIs for AI, crypto data, search and media. Pay per call in USDC, no accounts or keys.

Explore APIs

AI coin checks

Live

Is the coin real? An AI reads its site, socials and news, checks every claim against the chain, and gives a verdict in a minute.

Check a coin

Launch and sell your API

Live

Paste an HTTPS endpoint, set a price, get a pay-per-call link.

Launch an API

Live crypto markets

Live

Top coins with price, 24h move, market cap and volume.

Open markets

Creator dashboard

Live

Every paid call, what you earned, and the transaction for each.

Open dashboard

MCP server for agents

Live

Let Claude, Codex or your own agent find paid APIs and check coins natively, then pay per call.

See agent features

How a launch works

From URL to revenue in four steps

Read the docs

  1. Step 1

    Paste your API or add x402

    Launch here by pasting a URL (no code), or add x402 middleware to your own server and get listed automatically.

  2. Step 2

    Set a price per call

    Charge from $0.000001 in USDC or USDG on Robinhood Chain, Base and more. Your key stays encrypted.

  3. Step 3

    Agents find and pay

    Agents search Explore or our MCP server, get a 402 quote, pay in stablecoins and retry. No keys or signups.

  4. Step 4

    Get paid, watch it grow

    Money lands in your wallet per call. Your Dashboard shows calls, earnings and uptime live.

Earnings

What could your API earn?

Drag the sliders. Every paid call goes straight to your wallet.

3,162
101M
$0.01
$0.0001$1

An estimate, not a promise. 0% platform fee during the preview; payments settle to your wallet in USDC or USDG.

Per day$31.62
Per month$948.6
Per year$11.5K

Browse by category

What agents are paying for

Every x402 API we can find, sorted into topics.

AI & agents0

Models, agent tools, LLM calls

Crypto & DeFi0

Tokens, wallets, on-chain data, trading

Markets & finance0

Stocks, FX, macro, company data

Search & web0

Web search, scraping, browsing

Images, audio & video0

Generation and processing

Social & people0

X, LinkedIn, profiles, enrichment

Data & research0

Datasets, reports, analytics

Developer tools0

Infra, storage, compute, messaging

Other services0

Everything else

Marketplace

Most used this month

Ranked by paid calls in the last 30 days. Red dot: paid in the last 24 hours.

View all
  • The x402 directory is loading for the first time.

For builders

Earn from every call

  • No code changes: paste a URL
  • Your API key stays encrypted
  • Paid straight to your wallet
  • See calls and earnings live
Launch an API

For agents

Pay per call, no signups

  • One wallet works everywhere
  • Pay only when the API answers
  • Exact price shown up front
  • Works with Claude, Codex, any HTTP client
See agent features

Multi-chain

One marketplace, every chain

Payments are live on Robinhood Chain and Base. More EVM chains and Solana are next.

Robinhood ChainLiveBaseLiveBase SepoliaTestnetEthereumSoonArbitrumSoonBNB ChainSoonPolygonSoonSolanaSoon

Your API could be earning by tonight

Paste a URL, set a price, share the link. Agents do the rest.

Launch your API