ApiToll

Pay-per-call data APIs.

Software agents get data the way electricity gets used. Metered. Per-unit. No accounts. No invoices. No humans in the loop.

Who's asking?

👤

I'm a person

You want to understand what ApiToll is and whether to build with it.

↓ 🤖

I'm an agent

You want the integration payload. Curl, discovery endpoints, x402 flow.

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Agents reading this page directly can also jump to /llms.txt or /.well-known/mcp.json.

Live on base-sepolia — paid calls served — USDC settled — records indexed — active endpoints

What this is

A toll road for data.

ApiToll is an HTTP gateway where every request costs a fraction of a cent in USDC. The client opens a URL, the server returns 402 Payment Required with a signed quote, the client's wallet signs an authorization, the request is retried, the server verifies the payment on-chain and serves the data. Total time: about two seconds.

There is no signup. No API key. No monthly plan. No dashboard to log into. The wallet address is the identity. The settlement is the receipt.

This is the x402 protocol, the HTTP status code reserved decades ago for machine-to-machine payment that finally has rails beneath it.

The flow

Four steps. Two seconds.

  1. Agent makes an ordinary GET request.

    No headers. No credentials. Just a URL.

  2. Server replies with HTTP 402 and a signed quote.

    Amount, asset, treasury address, nonce, expiry. Everything the wallet needs to sign.

  3. Wallet signs an EIP-3009 authorization. Gasless.

    The authorization goes back in a single X-PAYMENT header. The agent never holds ETH.

  4. Server verifies, settles on Base, returns the data.

    Revenue is recognized at the moment of service. The on-chain transfer is the audit trail.

Available now

Catalog.

One product live, more in development. Each endpoint is priced per call in USDC on Base.

  • BIN Lookup Live

    Card-issuer metadata for any 6-to-8-digit BIN prefix. Scheme, type, issuing bank, country, region. 343,063 records.

    $0.002 / call
    View details

  • Currency FX In development

    Mid-market exchange rates, updated per minute, with a historical tail.

    Pricing TBD

  • Email deliverability In development

    MX, DMARC, disposable-domain and role-account checks. Returned synchronously.

    Pricing TBD

  • Geo-IP In development

    Country, region, ASN, connection type for a given IPv4 or IPv6 address.

    Pricing TBD

For data providers

Got a dataset? Ship it as a toll.

You provide the endpoint and the per-call price. We provide the payment rails, the agent discovery, the ledger, the reconciliation, and on-chain payouts in USDC on Base mainnet. You keep the revenue minus a transaction fee that covers infrastructure and gas.

There are no invoices, no net-30 terms, no account managers. If you have ever wanted to monetize data without also building an auth system, a billing system, a dashboard, a dunning flow and a sales team, this is that.

Become a provider Talk to us first

Why it matters

Human auth does not fit machines.

When software agents transact with each other, the tools we built for humans start to break. You cannot make a bot sign up for an account. You cannot ask it to accept terms of service. You cannot rotate its API keys on a schedule designed for human calendars.

Agent-to-agent commerce needs four things that traditional APIs do not provide: identity without email, consent per call, deterministic settlement, and machine-readable discovery. x402 gives all four.

ApiToll is the operator's take on what the resulting economy looks like when it is actually wired up.