{"id":"copyleftdev-mcp-subfinder-server","name":"mcp_subfinder_server","af_score":58.8,"security_score":21.5,"reliability_score":18.8,"what_it_does":"Provides a Model Context Protocol (MCP) server that wraps ProjectDiscovery's subfinder to enumerate subdomains for a given domain via a JSON-RPC interface, including options for recursion, depth, timeouts, and source filtering/exclusion. Includes a /health endpoint for liveness.","best_when":"You need an on-prem or self-hosted MCP server that can be called by an agent to run subfinder with configurable parameters.","avoid_when":"You cannot control network exposure or request sizes, or you require documented idempotency/retry semantics and strict operational guarantees.","last_evaluated":"2026-04-04T19:52:02.571767+00:00","has_mcp":true,"has_api":true,"auth_methods":[],"has_free_tier":false,"known_gotchas":["Subdomain enumeration can be resource-intensive and may take longer than typical agent timeouts; ensure agent-side timeouts align with the server/tool timeout parameters.","No auth is documented; agents should not expose the server publicly without adding network/auth controls.","Recursive enumeration and high timeouts/depth can amplify work and result size; constrain parameters for safer agent runs."],"error_quality":0.0}