Person Enrichment API

Person enrichment from email. Full name, job title, company, LinkedIn, GitHub, Twitter, avatar, location. Ideal for lead research. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 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.):

{
  "mcpServers": {
    "person-enrichment": {
      "url": "https://person-enrichment.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl "https://person-enrichment.api.klymax402.com/api/enrich?email=user@example.com"
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

person_enrich_from_email

Enrich a person's profile with additional data from their email address, name, domain, or LinkedIn URL. Alternative to Apollo people-enrich at 5x lower cost. Returns structured JSON with full contact and professional details.

Parameters

Example response:

{"fullName":"Jane Smith","jobTitle":"VP Engineering","company":"Acme Corp","linkedin":"https://linkedin.com/in/janesmith","github":"https://github.com/janesmith","location":"San Francisco, CA","avatar":"https://gravatar.com/abc123","domain":"acme.com"}

When to use: outreach to personalize emails, enrich CRM records, search for people/contacts, or research decision-makers. Essential for sales prospecting, lead qualification, and account mapping. Drop-in replacement for Apollo person enrichment.

Not for: email validation (use email_verify_address), company data (use company_enrich_from_domain), social profiles by username (use social_lookup_profile), finding email addresses (use email_find_by_name).

person_enrich_from_email

Enrich a person's profile with additional data from their email address, name, domain, or LinkedIn URL. Alternative to Apollo people-enrich at 5x lower cost. Returns structured JSON with full contact and professional details.

Parameters

Example response:

{"fullName":"Jane Smith","jobTitle":"VP Engineering","company":"Acme Corp","linkedin":"https://linkedin.com/in/janesmith","github":"https://github.com/janesmith","location":"San Francisco, CA","avatar":"https://gravatar.com/abc123","domain":"acme.com"}

When to use: outreach to personalize emails, enrich CRM records, search for people/contacts, or research decision-makers. Essential for sales prospecting, lead qualification, and account mapping. Drop-in replacement for Apollo person enrichment.

Not for: email validation (use email_verify_address), company data (use company_enrich_from_domain), social profiles by username (use social_lookup_profile), finding email addresses (use email_find_by_name).

Example agent prompts

• "Enrich a person's

... View full README on GitHub