Open-source AI SDR: B2B prospecting, email enrichment, buying signals and safe outreach staging.
To add OpenSDR to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 9 environment variables, listed below.
Install
npx -y opensdr-mcp@1.0.1Environment variables
APOLLO_API_KEYSet in your MCP configHUNTER_API_KEYSet in your MCP configEXA_API_KEYSet in your MCP configTAVILY_API_KEYSet in your MCP configINSTANTLY_API_KEYSet in your MCP configHUBSPOT_ACCESS_TOKENSet in your MCP configOPENSDR_READ_ONLYSet in your MCP configOPENSDR_MAX_CREDITS_PER_CALLSet in your MCP configOPENSDR_DATA_DIRSet in your MCP configInstall with your client
claude mcp add opensdr --env APOLLO_API_KEY=<YOUR_APOLLO_API_KEY> --env HUNTER_API_KEY=<YOUR_HUNTER_API_KEY> --env EXA_API_KEY=<YOUR_EXA_API_KEY> --env TAVILY_API_KEY=<YOUR_TAVILY_API_KEY> --env INSTANTLY_API_KEY=<YOUR_INSTANTLY_API_KEY> --env HUBSPOT_ACCESS_TOKEN=<YOUR_HUBSPOT_ACCESS_TOKEN> --env OPENSDR_READ_ONLY=<YOUR_OPENSDR_READ_ONLY> --env OPENSDR_MAX_CREDITS_PER_CALL=<YOUR_OPENSDR_MAX_CREDITS_PER_CALL> --env OPENSDR_DATA_DIR=<YOUR_OPENSDR_DATA_DIR> -- npx -y opensdr-mcp@1.0.1
Run this in a terminal to add the server to Claude Code.
What this does
OpenSDR exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
APOLLO_API_KEY HUNTER_API_KEY EXA_API_KEY TAVILY_API_KEY INSTANTLY_API_KEY HUBSPOT_ACCESS_TOKEN OPENSDR_READ_ONLY OPENSDR_MAX_CREDITS_PER_CALL OPENSDR_DATA_DIR
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install OpenSDR?
Run the Claude Code command in the install section to add OpenSDR to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with OpenSDR?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to OpenSDR as well.
Does OpenSDR need an API key?
Yes. Before it can run, set these environment variables: APOLLO_API_KEY, HUNTER_API_KEY, EXA_API_KEY, TAVILY_API_KEY, INSTANTLY_API_KEY, HUBSPOT_ACCESS_TOKEN, OPENSDR_READ_ONLY, OPENSDR_MAX_CREDITS_PER_CALL, OPENSDR_DATA_DIR. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
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