MCP Debugging guides

MCP Inspector: testing and debugging MCP servers

The complete guide to MCP Inspector: launch it with npx, point it at stdio or Streamable HTTP servers, drive it from the CLI in CI, test OAuth, and understand the post-CVE-2025-49596 token model.

Send MCP Server Errors to Sentry for Real-Time Alerting

Wire Sentry into a production MCP server. The current sentry-sdk auto-captures tool-handler exceptions through a default MCP integration, so basic error reporting needs no manual code.

Security tests for MCP server endpoints

Security-test an MCP server with real, verifiable tools: scan tool descriptions for poisoning and line jumping, probe the Streamable HTTP endpoint with the Inspector CLI and curl, and check OAuth Resource Server behavior against the 2026-07-28 spec.

Test WebMCP Tools with Model Context Tool Inspector

Install and use Google's Model Context Tool Inspector extension to test, debug, and inspect your WebMCP tools in Chrome DevTools.

Stream MCP Server Logs to Datadog for Observability

Forward MCP server logs and metrics to Datadog using AgentCat's native integration for complete observability.

Monitor MCP Server Performance with OpenTelemetry

Connect MCP servers to any OpenTelemetry-compatible platform for distributed tracing and performance monitoring.