Heystack MCP server
Observability for AI apps: investigate traces, logs, LLM usage, replays and crashes; manage alerts.
A93/100grade A
Adoption
Growing
0 stars
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Heystack tools
Tool list not cached yet. `describe` through the gateway fetches it live.
Public scan report
scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it
no findings
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 495ms (auth required)20/20
- –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
- Auth qualityOAuth resource metadata advertised on 40115/15
- Maintenancelast push 1 days ago15/15
- Maintainer identitynamespace and repository owner differ; website matches verified namespace6/10
Overall 93/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON
Install directly
claude mcp add --transport http heystack https://mcp.heystack.dev/mcp
Heystack: common questions
- Is Heystack MCP server safe?
- Yes, by our scan: it is graded A (93/100). Read the Heystack safety report
- How do I install Heystack?
- It runs remotely at mcp.heystack.dev. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Heystack need an API key?
- No key to paste: it signs you in with OAuth when your client connects.
- Is Heystack maintained?
- The last commit was 2 days ago (2026-09-19). The latest release is v0.1.0.
- Is Heystack up?
- 100% of our last 6 checks got an answer. We check remote servers about four times a day.
- What can I use instead of Heystack?
- Servers from other publishers that do the same job: agent-device MCP server, Mockserver MCP server and Orcareplay MCP server. Compare all Heystack alternatives.
Alternatives to Heystack
Same job from other publishers: the closest match first, then the best rated.
- agent-deviceMCP server for mobile app automation: verify, control, and debug iOS, Android, TV, and desktop appsnot reviewedWidely usedA
MockserverMock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP.not reviewedEstablishedA- OrcareplayRead, replay and fork recorded coding-agent runs.not reviewedEstablishedA
- agentburnLocal profiler: which usage window took you out, and where your agent's money goesnot reviewedEstablishedA
