Documentation

Relentless Identity Documentation — Email Finder and Verification API

Guides for the B2B email finder and verification API. Dashboard access, REST endpoints, MCP integration, and catch-all verification workflows.

Relentless Identity Documentation

Relentless Identity helps you verify work email identities with the workflow that fits your team best.

  • Use the dashboard when you want to run Finder and Probe directly.
  • Use signed-in crypto checkout when you want a QR-code payment flow, or x402 when you want accountless prepaid access.
  • Use the REST API when you want to call Relentless Identity from your own application.
  • Use MCP when you want an agent or IDE to run the same workflows on your behalf.

What you can do here

  • Run Finder when you have a person's full name and company domain.
  • Run Probe when you already know the exact email address you want to verify.
  • Schedule background jobs when you need asynchronous processing, callbacks, or a better fit for bursty workloads.
  • Generate a Personal Access Token in the dashboard for REST and MCP access.
  • Add signed-in crypto balance through the billing workspace, or buy a prepaid x402 credit bundle and receive a bearer token without creating an account.

Help when you need it

  • The dashboard includes an in-app support assistant for product and integration questions.
  • When a question needs manual follow-up, the conversation can continue with the support team.
  • Enterprise teams can reach us through the enterprise contact page for rollout, volume, and procurement discussions.

Start here

  1. Getting started
  2. Authentication
  3. Crypto payments
  4. REST API reference
  5. MCP reference
  6. Response semantics

Quick links

Browse the docs

Start with the overview, move into authentication and implementation details, then keep the reference pages nearby while you build.

Relentless Identity Documentation — Email Finder and Verification APIGetting started — B2B email finder and verificationAuthentication — Email verification API accessCrypto paymentsREST API reference — Email Finder API and Verification APIMCP reference — Email verification agent workflowsCatch-all verification — Email verification for accept-all domainsAccuracy notes — Email verification and catch-all handlingResponse semantics — Email verification API results

Agent-ready docs

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Copy the current page as Markdown, or copy `llms.txt` when you want to give an assistant a clean index of the docs, reference, and related pages.

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Companion routes

Reference, pricing, and access

Jump from the guides into the live API reference, pricing, or token management when you are ready to move from evaluation to production use.

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