# Company Email Finder — B2B Contact Discovery API A lead generation tool your agent can run on one prepaid apifare key. Page: https://apifare.com/tools/nexgendata/company-email-finder ## What you need An apifare key with credits (sign up: POST https://apifare.com/v1/signup {"email": "..."}; new accounts get 500 free credits). No other account or key. ## Inputs - `domains` (array, required): Company Domains - `notionConnector` (string): Deliver to Notion (optional) - `notionParentId` (string): Notion parent page ID (optional) - `supabaseConnector` (string): Deliver to Supabase (optional) - `supabaseTable` (string): Supabase table name (optional) (e.g. "nexgendata_leads") - `supabaseProjectId` (string): Supabase project ID (optional) The most relevant fields; the search result's input_schema lists all of them. ## Price 5 credits reserved per run, settled to the run's true cost, never more than 20 credits (1 credit = $0.01). Failed runs are refunded. Exact numbers: https://apifare.com/capabilities ## Run it 1. Find it: MCP search_apis, or GET https://apifare.com/v1/search?q=Company%20Email%20Finder%20%E2%80%94%20B2B%20Contact%20Discovery%20API with Authorization: Bearer . Take the result named "Company Email Finder — B2B Contact Discovery API"; it carries a proxy_route. 2. Run it: MCP proxy_call with that proxy_route and the input JSON (apifare-mcp over stdio), or POST the proxy_route over HTTP with the input JSON as the body and the same Authorization header. 3. On HTTP 402, relay the body's human_readable field to your human verbatim, wait, then retry the same call. Every other error and its fix: https://apifare.com/errors.md