{"id":"prefecthq-prefect-mcp-server","name":"prefect-mcp-server","homepage":"https://registry.modelcontextprotocol.io/v0/servers/io.github.PrefectHQ%2Fprefect-mcp-server/versions/latest","repo_url":"https://github.com/PrefectHQ/prefect-mcp-server","category":"infrastructure","subcategories":[],"tags":["mcp","prefect","agents","orchestration","monitoring","python"],"what_it_does":"An MCP server that lets MCP clients (e.g., Claude Code) interact with Prefect resources for monitoring/inspection and some automation-like CLI-backed mutations (e.g., triggering deployments, cancelling runs). It authenticates to Prefect using local Prefect configuration or environment variables/HTTP headers, and can be run locally via stdio or deployed over HTTP (e.g., FastMCP Cloud).","use_cases":["Use an AI agent to inspect Prefect state (work pools, deployments, flow runs, task runs)","Retrieve execution logs and events for debugging failed workflow runs","Let an AI agent trigger Prefect actions via the Prefect CLI (e.g., trigger deployments, cancel runs)","Provide read-only insights for orchestrations and operational diagnostics"],"not_for":["A general-purpose Prefect API replacement for arbitrary programmatic access","Long-term stable automation without change management (the project is explicitly marked experimental)","Use cases requiring a documented public HTTP REST/SDK contract for the MCP interface itself"],"best_when":"You want MCP-based, agent-friendly access to Prefect for operations/debugging and you can provide a Prefect API key (or local Prefect profile credentials).","avoid_when":"You need strict, well-defined backward compatibility guarantees or a production-grade, fully specified API contract with strong operational SLAs for the MCP server.","alternatives":["Write a custom MCP server around Prefect's REST API directly (or query Prefect via its official Python SDK)","Use Prefect CLI directly from your automation tooling (without MCP)","Use Prefect's official API/SDK for your own backend integrations and wrap it with your preferred agent framework"],"af_score":47.0,"security_score":59.8,"reliability_score":20.0,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T15:27:59.559103+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":"https://your-server-name.fastmcp.app/mcp (example given for FastMCP Cloud deployment)","has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["MCP server authentication via FastMCP Cloud (described at high level)","Prefect Cloud API key via environment variable (PREFECT_API_KEY) when accessing Prefect","Prefect basic auth credentials via environment variable (PREFECT_API_AUTH_STRING) for OSS (basic auth)","Passing Prefect credentials to the MCP server via HTTP headers (X-Prefect-Api-Url, X-Prefect-Api-Key, X-Prefect-Api-Auth-String)"],"oauth":false,"scopes":false,"notes":"The README emphasizes use of service accounts with read-only permissions (see_* permissions) as a way to limit mutation risk; however, detailed MCP-tool permissioning/scopes are not described in the provided content."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"No pricing for the open-source MCP server is stated in the provided content. FastMCP Cloud deployment may incur its own costs, but these are not specified here."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":47.0,"security_score":59.8,"reliability_score":20.0,"mcp_server_quality":65.0,"documentation_accuracy":55.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":65.0,"rate_limit_clarity":10.0,"tls_enforcement":70.0,"auth_strength":70.0,"scope_granularity":45.0,"dependency_hygiene":55.0,"secret_handling":55.0,"security_notes":"Credentials can be provided via environment variables or HTTP headers; header-based multi-tenant deployments increase risk of accidental leakage if clients/proxies/logging are misconfigured. The README suggests using Prefect service accounts with read-only permissions to reduce blast radius, but does not describe fine-grained tool-level authorization or detailed security/error handling behavior for the MCP server itself.","uptime_documented":0.0,"version_stability":35.0,"breaking_changes_history":25.0,"error_recovery":20.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Project is explicitly experimental; tool behavior/APIs may change without notice","Mutations are possible via CLI skills; ensure your Prefect credentials are least-privilege (prefer read-only service accounts if you only need diagnostics)","When using HTTP transport, credentials may be sent as headers; avoid leaking headers in logs or shared environments"]}}