interloper-mcp 0.51.0

Interloper MCP server — read-only platform access for AI agents

interloper-mcp

A Model Context Protocol server exposing read-only interloper platform access to AI agents: catalog definitions, collection listings, lineage, run/backfill monitoring, and analytics.

Authentication uses personal access tokens (PATs) minted via the interloper API (POST /api/tokens, session-authenticated). Tokens are org-scoped and carry the holder's live role; revocation and membership removal apply immediately.

Running

Streamable HTTP (default; binds INTERLOPER_MCP_HOST:INTERLOPER_MCP_PORT, endpoint /mcp):

interloper-mcp

Clients authenticate every request with Authorization: Bearer ilp_....

stdio (single-user, authenticates once at startup):

INTERLOPER_MCP_TOKEN=ilp_... interloper-mcp --transport stdio

For local development without a token, INTERLOPER_MCP_ORG_ID=<uuid> scopes the stdio server to one organisation directly.

Connecting clients

MCP Inspector:

npx @modelcontextprotocol/inspector
# Transport: Streamable HTTP, URL: http://localhost:3001/mcp
# Header: Authorization: Bearer ilp_...

Claude Code:

claude mcp add --transport http interloper http://localhost:3001/mcp \
  --header "Authorization: Bearer ilp_..."

Settings

Env var	Default	Purpose
INTERLOPER_MCP_HOST	0.0.0.0	HTTP bind host
INTERLOPER_MCP_PORT	3001	HTTP bind port
INTERLOPER_MCP_EXTERNAL_URL	—	Public base URL (e.g. https://mcp.interloper.app), used in OAuth protected-resource metadata
INTERLOPER_MCP_TOKEN	—	stdio only: PAT to authenticate as
INTERLOPER_MCP_ORG_ID	—	stdio only: dev fallback, direct org scope

Database and catalog configuration is the standard interloper set (INTERLOPER_POSTGRES_*, INTERLOPER_CATALOG, ...).

Deployment (not yet wired)

The container target would follow the existing dockerfile pattern:

FROM base AS build-mcp
COPY packages ./packages
RUN docker/uv-sync.sh interloper-core interloper-assets interloper-db interloper-toolkit interloper-mcp

FROM runtime AS mcp
COPY --from=build-mcp /interloper/.venv /interloper/.venv
USER app
EXPOSE 3001
CMD ["interloper-mcp"]

plus a mcp role in the Makefile/publish workflow, a Helm/Flux workload (apps/interloper/mcp/ with an HTTPRoute for mcp.interloper.app — wildcard DNS + TLS already cover it), and its own GSA/IAM DB user in terraform if it should not share the app's identity.