Turn your AI chat into a B2B prospecting workspace.
Derrick's MCP server lets Claude, ChatGPT or any MCP client find leads, emails, phones and company data for you, in plain English. Same engine as the Derrick web app, Google Sheets and the API.
In Claude: Customize → Connectors → Add custom connector, name it Derrick and paste the server URL. ChatGPT, Cursor, Windsurf and any MCP client take the same URL.
Find 20 fintech CFOs in Paris and their work emails
derrick_import_leads_from_prompt20 leads
derrick_find_email17 found
Camille L.CFO · Qontoc•••@qonto.com
Thomas B.CFO · Swilet•••@swile.co
Sophie M.CFO · Pennylanes•••@pennylane.com
Hugo F.CFO · Lydianone
Ask in plain English
“Find 20 fintech CFOs in Paris and their work emails.” The agent picks the Derrick tools, tells you what it will cost, and returns clean rows.
Set it up02 / 08
Paste the URL. Done.
Pick your client. Your API key is in the Derrick web app, under API & MCP.
In Claude, open Customize → Connectors, click + Add custom connector, name it Derrick and paste the URL below. Claude asks for your Derrick API key when you connect.
1Open Customize
2Go to Connectors
3Add custom connector
4Name it Derrick + paste the URL
Server URL
https://app1.derrick-app.com/mcp
Add Derrick over the remote HTTP transport. Claude Code stores it once per machine and asks for your API key when you connect.
claude mcp add --transport http derrick https://app1.derrick-app.com/mcp
Run claude mcp list to see derrick connected, or type /mcp inside Claude Code.
In ChatGPT (developer-mode connectors), Cursor, Windsurf or any client that supports remote MCP servers, add a server with the URL below and pass your Derrick API key as a Bearer token.
Company data: headcount, industry, HQ, website, socials
1
derrick_search_linkedin_profile
Find a LinkedIn profile from a name and company
1
derrick_search_companies
Find a company's LinkedIn URL from its name
1
derrick_search_leads_in_companies
Leads matching a job title inside target companies (Sales Navigator)
1 / lead
derrick_is_hiring
Whether a company has open roles on LinkedIn Jobs, with job titles
1
derrick_find_tech
Tech stack of a website: CMS, analytics, hosting, CDN
2
derrick_website_contact_social
Public emails and social profiles found on a website
2
derrick_website_crawler
Clean page content: title, description, headings, text
2
derrick_data_gouv
French SIRET / SIREN / NAF data from data.gouv.fr
1
derrick_serp_first_result
Google's first organic result for any query
2
derrick_push_to_lgm
Push enriched leads into a La Growth Machine audience
free
derrick_push_to_lemlist
Add enriched leads to a lemlist campaign
free
derrick_credits
Your live credit balance, so the agent can budget
free
LinkedIn tools run through the Derrick Chrome extension; Sales Navigator imports need a Sales Navigator seat. Ask your agent to call derrick_help for the full list.
Plans07 / 08
Which plan do you need?
The MCP server and the REST API come with the PLUS plan (€47.50/month, 25,000 credits) and above. Not ready yet? The free plan gives you 100 credits a month to try Derrick in the web app. Unused credits never expire as long as you stay on a paid plan.
It's a Model Context Protocol server that gives any AI agent (Claude, ChatGPT, Cursor, Windsurf) live access to Derrick's B2B enrichment. You ask in plain English ("enrich these leads, find their phones") and the agent runs the multi-source lookup through Derrick and returns the data in the chat. It's the same engine as the Derrick web app, the Google Sheets add-on and the REST API.
How do I connect it to Claude?
+
In Claude, open Customize → Connectors → + Add custom connector, name it Derrick and paste https://app1.derrick-app.com/mcp. Prefer the terminal? Use the one-line Claude Code command in the "Set it up" section above. Derrick asks for your API key when you connect.
Do I need an API key, and a paid plan?
+
Yes, to call the tools: you need a Derrick API key, available from the PLUS (€47.50/mo) plan. The plans below it don't include API/MCP access. Get the key on the API & MCP page of the Derrick app.
Can I try Derrick for free?
+
Yes. The free plan gives you 100 credits a month to try Derrick in the web app, no card needed. The MCP itself needs the PLUS plan or above. Unused credits never expire as long as you stay on a paid plan.
How much does an MCP call cost?
+
Credits are charged per tool, not flat: find_email = 5 per email found, find_phone = 200 per phone found, enrich_profile = 1, verify_email = 1, find_tech = 2, import_leads_from_prompt = 1 per lead. A credit costs €0.0019 on PLUS, down to €0.0016 on the largest plan. The derrick_credits tool returns your balance so the agent can budget.
Which AI clients can connect?
+
Any MCP client that accepts a remote server. We document Claude (app, web, Claude Code), ChatGPT (developer-mode connectors), Cursor and Windsurf; anything on the spec works with the same URL.
Is it real-time?
+
Yes. Every call goes through the same engine as the web app and the Google Sheets add-on, cross-referencing 15+ data providers live. No cache: if a person's email changed yesterday, you get the new one today.
How is this different from the REST API?
+
Same engine, different surface. The REST API is for code integrations (Zapier, Make, your scripts). The MCP is for AI agents: the agent calls Derrick as tools, so you prompt "find me 50 leads matching X" and it figures out which tools to chain.
Is it GDPR-compliant?
+
Yes. Derrick processes only publicly-available B2B data and stores nothing: every MCP call is stateless. Our DPA is available on the DPA page.
