n8n community node

packages/n8n-nodes-yupcha ships an n8n community node (n8n-nodes-opengtm) that calls your self-hosted OpenGTM instance. It is MIT licensed so it can be published to the n8n registry; the rest of OpenGTM is AGPLv3.

Install

From the package directory:

cd packages/n8n-nodes-yupcha
bun install
bun run build          # compiles to dist/

Then install it into n8n as a community node (Settings → Community nodes → Install) pointing at the built package, or link it into your n8n custom nodes directory. Restart n8n.

Credentials

Create an OpenGTM API credential with:

Field	Value
Instance URL	Your OpenGTM base URL, e.g. https://opengtm.example.com (default http://localhost:8000)
API Key	A bearer token from Settings → API Keys in OpenGTM

The node sends Authorization: Bearer <API Key> on every request.

Operations

Operation	Endpoint	Inputs	Returns
Source Leads	POST /api/collect	Search query	A durable collection job (job_id); poll GET /api/jobs/{id} and read GET /api/jobs/{id}/leads
Enrich Company	POST /api/lead then POST /api/leads/bulk-enrich	Company name, domain	lead_id plus the background enrichment job_id
Verify Email	POST /api/leads/verify-email	Email address	status (valid, invalid, catch_all, unknown), confidence, source
Score Lead	POST /api/leads/score	Lead record as JSON	score 0-100 and tier
Get Tech Stack	POST /api/leads/tech-stack	Domain	Detected technologies; 409 until TECH_STACK_WEBSITE_FETCH_ENABLED=1
Domain Intelligence	POST /api/leads/domain-intel	Domain	RDAP and DNS analysis
Find Duplicates	POST /api/leads/dedup	none	Duplicate groups

Each incoming item runs one request; the JSON response becomes the output item. With Continue on fail enabled, errors are emitted as { error } items instead of stopping the workflow.

The exact request and response shapes for every endpoint are in the REST API reference.

Beyond the node

Anything the node does not cover is a plain HTTP Request node away: every workbook, outreach, signal and automation endpoint is documented in the API reference and works with the same bearer token. Inbound rows can also be pushed with a per-workbook ingest token; see Ingest API.