# GTM Signals documentation

Research date: 2026-09-14

Documentation coverage: partial.

Reference index, not a mirror of complete vendor documentation. Retrieved pages do not prove the MCP works.

## What it does

Turns what public companies say about themselves into queryable buying signals, one row per dated public statement (earnings call, SEC filing, investor deck slide, IR statement, job posting), each carrying a verbatim quote and an https link to the source it came from, across 7,034 companies with a page each and a cross-company search index over 95,304 signals.

## Access and connection

MCP support: official

Access requirements: unknown - the gate is a key, issued by hand on request (email andrew@andrewcmcguire.com). There is no self-serve signup and no public page states a price, so whether that key is free or paid is recorded as unknown rather than guessed. Two of the data surfaces behind the tools need no key at all: the public company directory and the cross-company signal index.

Authentication: api key, sent as `Authorization: Bearer gtms_...`. Streamable HTTP, stateless, protocol version 2025-06-18. The descriptor at https://mcp.gtmsignals.co/.well-known/mcp.json is readable with no key and lists every tool with its input schema.

Research checked: 2026-09-14

These details come from catalog research. Check vendor sources for current setup instructions; this is not proof of a tested connection.

## Sources

- https://andrewcmcguire.com/gtmsignals/mcp/
- https://mcp.gtmsignals.co/.well-known/mcp.json
- https://andrewcmcguire.com/gtmsignals/
- https://api.gtmsignals.co/v1/enrich/openapi.json
- https://s3.us-east-2.amazonaws.com/navan.andrewcmcguire.com/app/company/index.json
- https://mcp.gtmsignals.co/mcp

## Retrieved pages

- https://andrewcmcguire.com/gtmsignals/mcp/ (fetched)