{"id":"josharsh-mcp-jest","name":"mcp-jest","homepage":null,"repo_url":"https://github.com/josharsh/mcp-jest","category":"devtools","subcategories":[],"tags":["ai-ml","devtools","testing","mcp","model-context-protocol","typescript","jest","ci-cd","automation"],"what_it_does":"mcp-jest is a Jest-like testing framework/runner for Model Context Protocol (MCP) servers. It provides a CLI and library API to run automated protocol/tool/resource/prompt tests (including snapshot testing) against MCP servers over supported transports (stdio by default; HTTP streaming; SSE) and can validate MCP compliance and generate reports/CI-friendly outputs.","use_cases":["Automated regression testing for MCP servers’ tools, resources, and protocol compliance","Protocol validation with scoring prior to release","Snapshot testing of MCP tool outputs across versions","CI/CD integration for MCP server changes (local or in pipelines)","Discovering/auto-generating tests for MCP server capabilities"],"not_for":["End-user production use of MCP servers (it is a test runner, not a runtime service)","Services requiring managed hosting, remote test orchestration, or high-availability guarantees","Use cases needing a public web API for MCP itself (mcp-jest tests MCP servers you provide locally)"],"best_when":"You have an MCP server you can run as a command (local process or remote endpoint) and want repeatable automated validation in developer workflows/CI.","avoid_when":"You need strong security guarantees around remote execution of untrusted MCP servers (since the tool involves running a server command you supply). Also avoid if your MCP server requires complex network/security setup not covered by the documented transports.","alternatives":["Generic test frameworks (Jest/Vitest/Mocha) with custom MCP harness","Other MCP protocol testing/validation utilities (if available in your ecosystem)","SDK-level unit tests using @modelcontextprotocol/sdk directly","Contract tests that call MCP endpoints you expose (custom harness)"],"af_score":58.5,"security_score":39.8,"reliability_score":32.5,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T15:36:51.607792+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":true,"sdk_languages":["TypeScript","JavaScript"],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["None explicitly documented for mcp-jest itself; authentication likely delegated to the MCP server or underlying transports."],"oauth":false,"scopes":false,"notes":"The provided README does not describe any authentication mechanism for mcp-jest. Any auth/credentials would typically be part of the MCP server being tested or its network transport configuration."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"NPM package; pricing not described in the provided content."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":58.5,"security_score":39.8,"reliability_score":32.5,"mcp_server_quality":75.0,"documentation_accuracy":70.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":95.0,"rate_limit_clarity":10.0,"tls_enforcement":60.0,"auth_strength":30.0,"scope_granularity":20.0,"dependency_hygiene":55.0,"secret_handling":40.0,"security_notes":"mcp-jest runs user-supplied server commands and tests server behavior; this can introduce supply-chain and execution risks if the server/tool actions are untrusted. The provided content does not describe secret handling practices, TLS requirements for HTTP/SSE transports, or how credentials are managed. Authentication/authorization is not described, implying it is either not needed by mcp-jest or delegated to the tested MCP server/environment.","uptime_documented":0.0,"version_stability":55.0,"breaking_changes_history":40.0,"error_recovery":35.0,"idempotency_support":"false","idempotency_notes":"Testing a server can be non-idempotent depending on the server’s tool behavior; the README does not claim idempotent operations.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["mcp-jest appears to execute or connect to MCP servers (via command/transport). Tests may have side effects depending on the tools/resources under test.","No explicit guidance in the provided README on retry/backoff, structured error codes, or idempotency semantics for MCP actions."]}}