How to give Claude or ChatGPT a company-search tool

Add https://api.prosp.cc/mcp-rpc as a remote MCP server in your assistant and sign in with Telegram. The assistant then has tools to start a company search (find_prospects), poll it (get_discovery_status) and read the companies (get_discovery_results). There is no API key to paste.

Needs a Telegram account · introductory offer: about €2 for 200 searches (100 Stars).

Claude

In Claude, open Settings, then Connectors, choose Add custom connector, paste https://api.prosp.cc/mcp-rpc and complete the sign-in window. For Claude Desktop's JSON configuration and for Cursor, use the copy-paste blocks in the MCP guide.

ChatGPT

On a plan with connectors or developer mode enabled, open Settings, then Connectors, choose Add connector, paste the same URL and complete the sign-in window.

Before you connect

Open the Telegram bot @prosp_mcp_credits_bot, send /start, buy credits with /buy and run /connect. A search costs 100 credits whichever way it starts. Reading results, statuses and your balance is free.

What the assistant can do

Tool Purpose
find_prospects Start a search from a sentence plus optional industries, locations, sizes and exclusions
get_discovery_status See progress; found domains accumulate while the job runs
get_discovery_results Read the finished companies, with the contacts Prosp found
search_prospects Search companies you already found
get_credit_balance Check what is left

A search takes 5 to 25 minutes, so a good assistant starts it, keeps the job id and polls. The full tool list is in the MCP guide.

Start in Telegram API quick-start