# inspector

> Test, Debug, and Evaluate MCP servers, ChatGPT apps, and MCP Apps (ext-apps)

- **URL**: https://www.freshcrate.ai/projects/inspector
- **Author**: MCPJam
- **Category**: MCP Servers
- **Latest version**: `v2.9.4` (2026-06-03)
- **License**: NOASSERTION
- **Source**: https://github.com/MCPJam/inspector
- **Homepage**: https://www.mcpjam.com/
- **Language**: TypeScript
- **GitHub**: 1,869 stars, 217 forks
- **Registry**: github
- **Tags**: `chatgpt`, `mcp`, `mcp-apps`, `mcp-clients`, `mcp-tools`, `modelcontextprotocol`, `opensource`, `typescript`

## Description

Test, Debug, and Evaluate MCP servers, ChatGPT apps, and MCP Apps (ext-apps)

## Recent releases

| Version | Date | Urgency | Changes |
| --- | --- | --- | --- |
| `v2.9.4` | 2026-06-03 | High | ## What's Changed * evals: allow guests to create suites and rerun by @chelojimenez in https://github.com/MCPJam/inspector/pull/2391   **Full Changelog**: https://github.com/MCPJam/inspector/compare/v2.9.3...v2.9.4 |
| `v2.8.0` | 2026-05-30 | High | ## What's Changed * refactor(playground): rename AppBuilder internals to Playground by @chelojimenez in https://github.com/MCPJam/inspector/pull/2310 * feat(evals): freeze suite execution snapshot on plain rerun by @chelojimenez in https://github.com/MCPJam/inspector/pull/2316 * dark mode local was falling back to a weird color by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/2314 * Codex/cli config active project by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/217 |
| `v2.5.0` | 2026-05-22 | High | ## What's Changed * feat(apps): per-method window.openai capability matrix by @chelojimenez in https://github.com/MCPJam/inspector/pull/2223 * cleanup(views): drop legacy openai delete hook by @chelojimenez in https://github.com/MCPJam/inspector/pull/2224 * cleanup(apps): delete legacy ChatGPTAppRenderer + chatgpt-apps router by @chelojimenez in https://github.com/MCPJam/inspector/pull/2227 * feat(apps): per-dimension MCP Apps spec-bridge capability matrix (foundation) by @chelojimenez in https: |
| `v2.4.12` | 2026-05-18 | High | ## What's Changed * Electron Squirrel + Update detector by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/2114 * feat(inspector): playground tab (IDE-style Chat + App Builder) by @chelojimenez in https://github.com/MCPJam/inspector/pull/2121 * test(inspector): mock new lucide icons + standardEventProps in PlaygroundMain test by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/2122 * Redesign hosts visualization with canvas-based layout and house style by @chelojimenez i |
| `v2.4.10` | 2026-05-12 | High | ## What's Changed * fix(electron): include @ngrok/ngrok in packaged app so tunnel feature works by @bsradcliffe in https://github.com/MCPJam/inspector/pull/2037 * fix: advertise MCP app message capabilities by @haosenwang1018 in https://github.com/MCPJam/inspector/pull/2069 * feat(evals): M1 phase 2 — N iterations picker + save-from-chat by @chelojimenez in https://github.com/MCPJam/inspector/pull/2074 * fix(billing): compare table reads "Unlimited" for servers-per-project on free by @Vu-John in |
| `v2.4.4` | 2026-05-07 | High | ## What's Changed * CLI Ergonomics by @chelojimenez in https://github.com/MCPJam/inspector/pull/1957 * gpt and deepseek by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/1958 * tools call --ui: browser control, compact output, frontend discovery by @chelojimenez in https://github.com/MCPJam/inspector/pull/1959 * Make commands explicit by @chelojimenez in https://github.com/MCPJam/inspector/pull/1962 * Add OAuth conformance credential handoff and redaction by @chelojimenez in https: |
| `v2.4.0` | 2026-04-27 | High | ## What's Changed * nits to multi-model by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/1783 * orgs crashing by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/1764 * fix: 2 improvements across 2 files by @tomaioo in https://github.com/MCPJam/inspector/pull/1760 * Add stdio transport hardening and shared CLI transport flags by @chelojimenez in https://github.com/MCPJam/inspector/pull/1784 * Add MCP retry policy support and stabilize hosted inspector flows by @cheloji |
| `v2.3.0` | 2026-04-16 | High | ## What's Changed * nits to multi-model by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/1783 * orgs crashing by @ignaciojimenezr in https://github.com/MCPJam/inspector/pull/1764 * fix: 2 improvements across 2 files by @tomaioo in https://github.com/MCPJam/inspector/pull/1760 * Add stdio transport hardening and shared CLI transport flags by @chelojimenez in https://github.com/MCPJam/inspector/pull/1784 * Add MCP retry policy support and stabilize hosted inspector flows by @cheloji |
| `v2.2.0` | 2026-04-13 | High | ## Download - **macOS DMG**: [MCPJam Inspector.dmg](https://github.com/MCPJam/inspector/releases/download/v2.2.0/MCPJam%20Inspector.dmg) - **macOS ZIP**: [MCPJam Inspector ZIP](https://github.com/MCPJam/inspector/releases/download/v2.2.0/MCPJam%20Inspector-darwin-arm64-0.9.14.zip)  Both files are notarized and stapled for seamless installation on macOS.  ## Auto-generated release This release was automatically built and notarized by GitHub Actions. |
| `v2.1.0` | 2026-04-06 | High | ## Download - **macOS DMG**: [MCPJam Inspector.dmg](https://github.com/MCPJam/inspector/releases/download/v2.1.0/MCPJam%20Inspector.dmg) - **macOS ZIP**: [MCPJam Inspector ZIP](https://github.com/MCPJam/inspector/releases/download/v2.1.0/MCPJam%20Inspector-darwin-arm64-0.9.14.zip)  Both files are notarized and stapled for seamless installation on macOS.  ## Auto-generated release This release was automatically built and notarized by GitHub Actions. |

## Citation

- HTML: https://www.freshcrate.ai/projects/inspector
- Markdown: https://www.freshcrate.ai/projects/inspector.md
- Dependencies JSON: https://www.freshcrate.ai/api/projects/inspector/deps

_Generated by freshcrate.ai. Indexes github releases for AI-agent ecosystem packages._