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MCP verified MIT Self-run

Acp Inspector

mcp-newioapp-acp-inspector · by newioapp

Desktop app to test, inspect, and debug ACP (Agent Client Protocol) agents — a JSON-RPC protocol inspector, like MCP Inspector for ACP.

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Install

$ agentstack add mcp-newioapp-acp-inspector

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

Verified badge

Passed review? Show it. Paste this badge into your README — it links to the public security report.

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/mcp-newioapp-acp-inspector)

Reliability & compatibility

✓ Security review passed
0 installs to date
— no reviews yet
● 28d ago

Declared compatibility

Claude CodeClaude DesktopCursorWindsurf

Compatibility is declared by the source manifest. End-to-end runtime verification is coming — see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps — measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

ACP Inspector

A desktop app for testing and debugging Agent Client Protocol (ACP)-compatible agents. ACP is an open protocol that standardizes how client programs (IDEs, chat apps, orchestrators) communicate with agents over JSON-RPC, enabling interoperability across tools and platforms. The ACP inspector is inspired by MCP Inspector.

Features

  • Connect to any ACP agent — spawn via command line (e.g. kiro-cli acp, claude-agent-acp)
  • Full protocol log — see every JSON-RPC message on the wire with direction indicators, method filtering, and text search
  • Interactive prompting — send prompts, observe streaming responses, interrupt with session/cancel
  • Session management — create, list, and switch between sessions
  • Permission request handling — respond to session/request_permission inline
  • Agent info display — capabilities, supported prompt types, MCP transports, auth methods
  • Environment variable management — auto-source from login shell, manual edit, passed to agent process
  • Output grouping — concatenates streaming chunks into readable blocks, color-coded by type

Tested With

| Agent | Command | Link | |---|---|---| | Kiro CLI | kiro-cli acp | kiro.dev/docs/cli/acp | | Claude Agent ACP | claude-agent-acp | npmjs.com/package/@agentclientprotocol/claude-agent-acp | | Gemini CLI | gemini --acp | geminicli.com/docs/cli/acp-mode | | Cursor Agent | agent acp | cursor.com/docs/cli/acp |

Install

Download the latest release for your platform from GitHub Releases.

| Platform | Download | |---|---| | macOS (Apple Silicon) | .dmg (arm64) | | macOS (Intel) | .dmg (x64) | | Linux (x64) | .AppImage / .deb | | Linux (arm64) | .AppImage / .deb |

Development

npm install
npm run dev

Build

# Local unsigned build (macOS arm64)
./scripts/build-unsigned.sh

# Local signed build (macOS arm64, requires code signing cert + keychain setup)
./scripts/build-signed.sh

License

[MIT](LICENSE)

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

Reviews

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Versions

  • v0.1.0 Imported from the upstream source.

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