CircleCI
The CircleCI connector indexes pipeline runs into the local SQLite index and exposes read tools across pipelines, workflows, jobs, and artefacts. Authentication is via a personal API token.
What’s indexed
Section titled “What’s indexed”- Service id:
circleci - Item types:
ci_run
Authenticate
Section titled “Authenticate”nimbus connector auth circleciStored in the Vault as circleci.api_token and injected at spawn as CIRCLECI_API_TOKEN. The MCP server uses the Circle-Token header against circleci.com/api/v2.
Read tools (no HITL)
Section titled “Read tools (no HITL)”| Tool | Purpose |
|---|---|
| circleci_job_artifacts | List artifact metadata for a job number under a project. |
| circleci_job_list | List jobs for a workflow. |
| circleci_pipeline_get | Get a pipeline by UUID. |
| circleci_pipeline_list | List pipelines for a CircleCI project. |
| circleci_workflow_list | List workflows for a pipeline. |
Write tools (HITL-gated)
Section titled “Write tools (HITL-gated)”Every tool below requires interactive consent through the Gateway HITL gate before it executes.
| Tool | Purpose |
|---|---|
| circleci_job_cancel | Cancel a running job by project slug and job number. |
| circleci_pipeline_trigger | Trigger a new pipeline on a branch (or tag). |