Your API returns HTTP 402. The agent pays with USDC. You get paid instantly on Base. No credit cards. No invoices. No chargebacks. Just revenue.
2s
Settlement on Base
$0.001
Minimum payment
3%
Platform fee
0
Chargebacks ever
How It Works
From funding to settlement in under 2 seconds
Load Agent Wallets
Deposit USDC directly or convert fiat instantly via built-in on-ramp. Set daily budgets, vendor allowlists, and spending policies per agent.
Agents Pay for APIs
When an API returns HTTP 402, the agent automatically signs a USDC micropayment. Sub-second settlement on Base and Solana.
Sellers Get Paid
API providers receive instant USDC payments. No invoicing, no chargebacks, no 30-day net terms. Just revenue.
Two sides, one protocol
Whether you're building AI agents or selling APIs, API Toll handles the money.
Give your agents the ability to pay
Turn any endpoint into a revenue stream
Features
A complete payment infrastructure built for autonomous AI agents
Track every transaction as it happens. Live dashboards with spend breakdowns, success rates, and latency metrics.
Lightning-fast settlements on Base (2s finality) and Solana (400ms). Pay with USDC stablecoins across chains.
Enforce budget caps, vendor allowlists, and per-request limits. Every payment is policy-checked before signing.
Add 3 lines to monetize any API. TypeScript SDKs for Express, Hono, LangChain, and MCP tool servers.
Non-reversible USDC micropayments with no chargebacks. Sellers get paid the moment the API responds.
Built on the x402 HTTP standard. Fully interoperable, no vendor lock-in. Any agent, any API, any chain.
Why API Toll
Traditional payment processors weren't designed for autonomous agents
| API Toll | Stripe | PayPal | |
|---|---|---|---|
| Settlement speed | 2 seconds | 2-7 days | 3-5 days |
| Micropayments (<$0.01) | |||
| Chargebacks | None | Yes | Yes |
| Agent-native (no human) | |||
| On-chain settlement | |||
| Multi-chain support |
Real code, real SDK
Sellers add our Express middleware. Agents use our wallet SDK. The 402 handshake handles everything in between.
@apitoll/seller-sdk — Express middleware for payment gating
@apitoll/buyer-sdk — Agent wallet with auto-pay on 402
Facilitator handles USDC transfers on Base — sellers never touch crypto wallets
// seller.ts — Monetize any Express APIimport { paymentMiddleware } from "@apitoll/seller-sdk";app.use(paymentMiddleware({ facilitatorUrl: "https://facilitator-production-fbd7.up.railway.app", routePricing: { "GET /api/joke": { price: "0.001", network: "base-mainnet" }, "POST /api/analyze": { price: "0.02", network: "base-mainnet" }, }, sellerWallet: process.env.SELLER_WALLET,}));For agent swarms
Whether you run 1 agent or 10,000, API Toll handles payments, budgets, and compliance at any scale.
Each agent in your swarm gets its own wallet, budget, and policies. Manage 1,000 agents like one.
Agents discover tools, negotiate prices, and pay — all without human intervention. 24/7 commerce.
Per-agent daily budgets, vendor allowlists, and anomaly alerts. Stay in control while agents move fast.
Integrations
Native support for popular agent frameworks and HTTP servers
LangChain
Native tool integration
CrewAI
Multi-agent payments
AutoGen
Agent wallet support
MCP Servers
Tool monetization
Express / Hono
Middleware SDK
Any HTTP Client
Fetch, axios, curl
Production ready
We already ran our first real USDC transaction on Base mainnet. The infrastructure works end-to-end.
Not testnet tokens. Actual USDC micropayments settled on-chain in 2 seconds. Every transaction verifiable on Basescan.
Our facilitator handles the payment flow between agents and sellers. Running on Railway, processing real transactions today.
Built on the open x402 HTTP payment standard. No vendor lock-in — any agent framework, any HTTP server, any wallet.
Pricing
Start free. Scale as your agents grow. 3% transaction fee on all plans.
Perfect for getting started
For growing businesses
For large-scale operations