{"id":"mcpjam-inspector","name":"inspector","homepage":"https://www.mcpjam.com/","repo_url":"https://github.com/MCPJam/inspector","category":"devtools","subcategories":[],"tags":["mcp","mcp-tools","mcp-inspector","chatgpt-apps-sdk","oauth-debugger","local-development","debugging","json-rpc","developer-tools"],"what_it_does":"MCPJam Inspector is a local development client/emulator for ChatGPT Apps SDK and MCP apps/servers, providing an interactive widget emulator, MCP JSON-RPC tool/resource debugging, an OAuth flow debugger, and an LLM playground to test MCP servers against various models.","use_cases":["Emulate and test ChatGPT Apps/Widgets locally","Debug MCP server tools/resources/prompts via JSON-RPC logs","Inspect and troubleshoot OAuth handshakes for MCP servers/flows","Test MCP servers against different LLM providers/models","Verify server-exposed metadata (capabilities, instructions, widget metadata)"],"not_for":["Not a hosted API service for production inference workloads","Not a security scanner/auditor for third-party code","Not a substitute for implementing your own OAuth/token verification in the MCP server"],"best_when":"You are iterating on an MCP server or ChatGPT/MCP app integration and need local, protocol-level visibility (JSON-RPC + OAuth) and a fast emulation/test loop.","avoid_when":"You need a documented public REST/GraphQL API contract to integrate this tool directly as a backend dependency in your systems.","alternatives":["Model Context Protocol official inspector tooling (where applicable)","General MCP client frameworks (e.g., xMCP or other MCP SDKs) used with local logging","Standalone OAuth debugging proxies/loggers combined with MCP client test scripts"],"af_score":28.8,"security_score":36.0,"reliability_score":30.0,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T13:23:19.823137+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"The README describes an OAuth debugger feature, but it does not document any authentication method required to use the inspector itself (e.g., API keys) nor any scope model for accessing inspector capabilities."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"The README claims certain 'frontier models' are provided for free in the LLM playground, and also supports 'bring your own API key', but it does not provide a formal pricing/tiers breakdown."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":28.8,"security_score":36.0,"reliability_score":30.0,"mcp_server_quality":0.0,"documentation_accuracy":45.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":90.0,"rate_limit_clarity":0.0,"tls_enforcement":60.0,"auth_strength":40.0,"scope_granularity":0.0,"dependency_hygiene":40.0,"secret_handling":40.0,"security_notes":"No information is provided about how the tool handles secrets (API keys, OAuth tokens), TLS usage details, dependency scanning/CVE posture, or whether it logs sensitive OAuth/token data. Since it includes an OAuth debugger and an LLM playground, there is an inherent risk of credential exposure via logs/UI if not carefully designed, but this cannot be confirmed from the provided content.","uptime_documented":0.0,"version_stability":45.0,"breaking_changes_history":40.0,"error_recovery":35.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Inspector is primarily a local UI/emulator rather than a programmatic service with documented endpoints; AI agents may need UI automation or reverse-engineering to operate it headlessly."]}}