Factline
Use when you need to know if an email address is real and deliverable before signup, outreach or onboarding: syntax, live MX routing, 9,000+ disposable domains, role addresses, free providers, typo suggestions (gmial.com to gmail.com) and SPF/DMARC. One verdict: deliverable, risky or undeliverable.
- Price per call
- $0.002
- Chain
- Base
- Method
- GET
- Paid calls · 30 days
- 12
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://factline.dev/v1/email/verify", { method: "GET" });
console.log(await res.json());https://factline.dev/v1/email/verify