agent4.io
https://api.agent4.io/v1/mcp
MCP · HTTP HTTP Transport in catalog since Oct 24
63
of 100
Tool descriptions contain instructions to the agent
Security audit detected prompt injection in tool descriptions: [imperative_system_prompt: "system prompt"], [imperative_system_prompt: "system prompt"]. These directives may attempt to hijack your agent's behavior.
Score breakdown
Availability 30 100
Honesty 30 100
Safety 25 0
Maturity 15 20
Community ±10 0
From the catalog
- Host
- api.agent4.io
- Listed price
- —
- Pay to
- —
- Paying buyers, 30d
- 0
- Source
- mcp_registry
- First seen
- 2026-10-24
- Last checked
- 2026-10-24 11:00 UTC
Badge for your README
Runs · last 7 days · 1 of 28
pass fail skipped
reach HTTP 200 · 1449 ms · raw response
Older runs are kept as daily summaries.
Community
0 votes from verified emails. Votes adjust the score by at most ±10 and never change a flag.
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For your agent
$ curl https://capkey.dev/api/v1/score?url=api.agent4.io/v1/mcp
{ "total": 63, "badge": "flagged",
"verdict": "tool_descriptions_contain_inst", "checked_at": "2026-10-24T11:00:58.526Z" }
{ "total": 63, "badge": "flagged",
"verdict": "tool_descriptions_contain_inst", "checked_at": "2026-10-24T11:00:58.526Z" }