--- slug: "email-finder-professional-email-from-name-domain" source_type: "readme" source_url: "https://cdn.jsdelivr.net/gh/Br0ski777/email-finder-x402@main/README.md" repo: "https://github.com/Br0ski777/email-finder-x402" source_file: "README.md" branch: "main" --- # Email Finder API [![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://email-finder.api.klymax402.com/mcp) [![x402](https://img.shields.io/badge/payments-x402-6E56CF)](https://x402.org) [![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE) Find professional email addresses from name + company domain. Tests 15+ patterns against MX records with confidence scoring. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall. Part of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base. ## Quickstart -- MCP Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.): ```json { "mcpServers": { "email-finder": { "url": "https://email-finder.api.klymax402.com/mcp" } } } ``` ## Quickstart -- HTTP (x402) ```bash curl "https://email-finder.api.klymax402.com/api/find?domain=...&firstName=...&lastName=..." # -> 402 Payment Required, with an x402 payment challenge in the response body ``` Any x402-aware client ([`@x402/fetch`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically. ## Tools | Tool | Method | Path | Price | Description | |---|---|---|---|---| | `email_find_by_name` | GET | `/api/find` | $0.012 | Find a person's email from their name and company domain | | `email_find_by_name` | POST | `/api/find` | $0.012 | Find a person's email from their name and company domain (POST variant) | ### `email_find_by_name` Search for people/contacts matching criteria and find their professional email address from name and company domain. Alternative to Apollo people-search at 4x lower cost. Returns the most likely email with confidence score after testing 15+ patterns against MX records. **Parameters** | Name | Type | Required | Description | |---|---|---|---| | `domain` | string | yes | Company domain (e.g. company.com) | | `firstName` | string | yes | Person's first name (e.g. John) | | `lastName` | string | yes | Person's last name (e.g. Doe) | Example response: ```json {"email":"john.doe@stripe.com","confidence":92,"pattern":"first.last","allCandidates":[{"email":"john.doe@stripe.com","score":92},{"email":"jdoe@stripe.com","score":75},{"email":"john@stripe.com","score":60}],"domain":"stripe.com","mxValid":true} ``` **When to use**: sales outreach, cold emailing, or building prospect contact lists. Essential for searching for people/contacts and finding decision-maker emails when you only know their name and company. Drop-in replacement for Apollo people search. **Not for**: email validation (use `email_verify_address`), company data (use `company_enrich_from_domain`), person data from email (use `person_enrich_from_email`). ### `email_find_by_name` Search for people/contacts matching criteria and find their professional email address from name and company domain. Alternative to Apollo people-search at 4x lower cost. Returns the most likely email with confidence score after testing 15+ patterns against MX records. POST variant of email_find_by_name -- same params passed as JSON body instead of query string. **Parameters** | Name | Type | Required | Description | |---|---|---|---| | `domain` | string | yes | Company domain (e.g. company.com) | | `firstName` | string | yes | Person's first name (e.g. John) | | `lastName` | string | yes | Person's last name (e.g. Doe) | Example response: ```json {"email":"john.doe@stripe.com","confidence":92,"pattern":"first.last","allCandidates":[{"email":"john.doe@stripe.com","score":92},{"email":"jdoe@stripe.com","score":75},{"email":"john@stripe.com","score":60}],"domain":"stripe.com","mxValid":true} ``` **When to use**: sales outreach, cold emailing, or building prospect contact lists. Essential for searching for people/contacts and finding decision-maker emails when you only know their name and company. Drop-in replacement for Apollo people search. **Not for**: email validation (use `email_verify_address`), company data (use `company_enrich_from_domain`), person data from email (use `person_enrich_from_email`). ## Example agent prompts - "Search for people/contacts matching criteria and find their professional email address from name and company domain" - "Search for people/contacts matching criteria and find their professional email address from name and company domain" ## Payment - Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key - Network: Base L2 (`eip155:8453`) - Asset: USDC - Facilitator: Coinbase CDP (primary), PayAI (fallback) - Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata) ## Part of klymax402 100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup. - Catalog: https://klymax402.com/llms.txt - Full API reference: https://klymax402.com/llms-full.txt - Live stats: https://klymax402.com/stats ## License MIT