Company Discovery List Builder
premium skill, $7.99 · signal-research
Builds a target company list from criteria, with the inclusion rules that keep it honest.
Needs an Apify token (usage billed to your Apify account); Node.js 18+; Python 3.
- Apify account and API token (APIFY_TOKEN) (required). Runs the live data actors. Cost: A free Apify account works. Each run bills your own Apify account at the actor's Store price: company-discovery-list-builder 0.004 USD per company returned; company-identity-resolver 0.007 USD per company.
- Node.js 18 or newer (required). The MCP tool calls. Cost: Free. It starts the Mamba Labs MCP server with `npx`.
- Python 3 with root certificates (required). The direct actor script `scripts/apify-run.py`. Cost: Free. On a python.org install on macOS, run `Install Certificates.command` once, or the script falls back to the system certificate file and says so if it cannot.
unzip company-discovery-list-builder.zip -d ~/.claude/skills/What it does
List building fails in two directions: too loose and you burn credits enriching junk, too tight and the market looks smaller than it is. This skill runs discovery from firmographic and signal criteria through a production list building actor, applies inclusion over exclusion at the early stage, and documents every filter so the list can be defended and re run. Output is a Clay ready company list with the build recipe attached.
What it covers
- list building
- prospecting
- TAM
- ICP
- lead generation
How it arrives
- Buy it once. The download is a zip with SKILL.md at the root.
- Unzip it into your agent's skills folder.
- Invoke it by name in Claude Code, Codex CLI, Cursor or any MCP compatible agent.
- Fixes and improvements ship as updates, with release notes by email.
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