Lookproof

Name the mail providers a domain uses from its MX hosts and SPF include tree: the mailbox provider behind the primary MX, inbound gateways and sending services, matched against a fixed, versioned list with the matching names as evidence. Use when an agent must tell who hosts a domain's mail, which services may send for it, or whether SPF still authorises a provider the domain has left.

Open endpoint ↗

Price per call: $0.005
Chain: Base
Method: GET
Paid calls · 30 days: 1

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://api.lookproof.dev/v1/mail/provider", { method: "GET" });
console.log(await res.json());

https://api.lookproof.dev/v1/mail/provider