# Derrick documentation Research date: 2026-09-07 Documentation coverage: partial. Reference index, not a mirror of complete vendor documentation. Retrieved pages do not prove the MCP works. ## What it does A credit-metered B2B enrichment engine sold primarily as a Google Sheets add-on, plus a REST API and a hosted MCP server, covering email finding, mobile phone finding, LinkedIn profile lookup, company firmographics, website technology detection and the French SIRET company registry. ## Access and connection MCP support: official Access requirements: paid - the vendor's MCP page states that API keys "unlock from the PLUS plan" and prices that plan at 47.5 euros per month. The same page contradicts itself twice in the surrounding copy, and both contradictions are recorded in notes rather than resolved by guesswork. Authentication: api key. The vendor's page states the MCP installs without credentials but every tool call needs a Derrick API key, passed as an Authorization Bearer header or entered when the client first prompts; the key is generated in the Google Sheets add-on under Settings then API access. Research checked: 2026-09-07 These details come from catalog research. Check vendor sources for current setup instructions; this is not proof of a tested connection. ## Sources - https://derrick-app.com/mcp - https://app1.derrick-app.com/mcp - https://derrick-app.com/ - https://github.com/DerrickAppOrg/derrick-mcp ## Retrieved pages - https://github.com/DerrickAppOrg/derrick-mcp (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/actions (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/forks (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/pulse (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/issues (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/activity (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/pulls (fetched) - https://github.com/DerrickAppOrg/derrick-mcp/tags (fetched)