CircleCI-Public/mcp-server-circleci
A Model Context Protocol (MCP) server implementation for CircleCI, enabling natural language interactions with CircleCI functionality through MCP-enabled clients
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
express vulnerable to XSS via response.redirect()
process.env. You'll be asked to provide them before it can run.DISABLE_TELEMETRY— true Opt out of usage metrics exportFILE_OUTPUT_DIRECTORY— File (requires env var): Creates a directory with flaky test detailsMAX_MCP_OUTPUT_LENGTH— "": "50000"REQUIRE_REQUEST_TOKEN— Per-user tokens (recommended) Teams with SSO-backed Personal API Tokens =true, no server PAT Each dev forwards their PAT Per developerdebugport— Both modes use remote HTTP mode (start=remote). Publish 8000 (or your chosen port).start— [rerun_workflow](#rerun_workflow) Rerun a workflow from or from the failed job[](https://m8ven.ai/mcp/circleci-mcp-server-circleci-clx4d2)