Live on Base L2x402 Pay-Per-Request

One Deposit.
Every API.

Deposit USDC once and call any API with a wallet signature. Or skip the deposit entirely — pay per request on-chain with x402. No API keys. No billing accounts.

Browse APIsList Your API

See How Simple It Is

Two audiences, one platform. Both get the simplest integration possible.

For Agents & Agent Developers

1Deposit
GET /v1/deposit-address{ "vault_address": "0x1a2b...f9e8" }
2Search
GET /v1/tools/search?query=weather[{ "id": "abc", "name": "Weather API", "price": "0.05" }]
3Call
POST /v1/proxy/abc{ "gateway": { "cost": 0.05 }, "data": { "temp": 15 } }

Three requests. That's it.

Full guide →

For API Suppliers

JavaScript
app.use((req, res, next) => {
  if (req.headers['x-gateway-secret'] !== SECRET)
    return res.status(401).json({ error: 'Unauthorized' });
  next();
});

One header check. You're listed and earning.

Register your API, verify the X-Gateway-Secret header, and start receiving paid requests from agents worldwide. No SDK, no library, any language.

Three Ways to Find the Right API

One endpoint, three search modes. Pick the one that fits your agent.

Keyword

~10ms

Full-text search, tag matching, and partial name matching. Fast, free, and always available.

/v1/tools/search?query=weather

Semantic

~300ms

Embedding-based intent matching. Understands meaning, not just keywords. Finds tools by what they do.

?query=current+temperature&mode=semantic

Agentic

AI-powered

An LLM reasons over the entire tool catalog to find the best match for complex, natural-language queries. Your agent describes what it needs in plain English.

?query=I+need+to+resize+images&mode=agentic

The Old Way vs. Agentic Gateway

Traditional API Integration

  • Manage API keys for every provider
  • Set up billing accounts with credit cards
  • Learn different auth schemes per API
  • Handle payment disputes manually
  • Monitor uptime yourself
  • No recourse when APIs fail

With Agentic Gateway

  • Deposit once or pay per request via x402
  • One signature scheme for every call
  • Automatic refunds when APIs fail
  • Uptime monitored every 5 minutes
  • Search tools by intent, not docs
  • AI agents self-discover via one prompt

Send Your AI Agent to the Gateway

Copy a prompt and send it to your agent. It reads the skill file, learns the API, and starts calling tools.

agent.md

Dynamic — always up-to-date

Live tool catalog, deposit address, prices, and auth format. Updates automatically as tools change.

Read https://api.agenticgateway.io/v1/agent.md and follow the instructions to use the Agentic Gateway

Inspect agent.md

skill.md

Static — concise reference

All endpoints, auth format, error codes, search modes, and pricing models. Drop into any agent context.

Read https://api.agenticgateway.io/v1/skill.md and follow the instructions to use the Agentic Gateway

Inspect skill.md

Why Agentic Gateway

Money Back If It Breaks

Supplier returns an error or times out? Your balance is restored instantly. No disputes, no forms, no waiting.

Your Wallet Is Your Key

No API keys to manage. No accounts to create. Your EVM wallet is your identity — sign once, call any API.

We Watch So You Don't Have To

Every listed API is health-checked every 5 minutes. Degraded tools are flagged automatically before you call them.

Two Ways to Pay. Zero Cards.

Pre-fund a balance for high-volume usage, or pay per request on-chain with x402 — no deposit needed. All USDC on Base L2.

Ready to explore?

Browse available APIs, test them live in the playground, and start building.

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