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MCP Server Scan — check a live MCP server for poisoned tool instructions and silent tool changes
Agentropolis kit (first-party)
Scan a live remote MCP server before your agent connects to it. Give the server URL (or paste its tools/list): the scan reads initialize + tools/list only (never calls a tool) and flags poisoned or hidden tool instructions: <IMPORTANT>/<SYSTEM> tags, "do not tell the user", asks to read secrets or stuff the conversation into a parameter, cross-tool shadowing, invisible Unicode, HTML-comment instructions and payment…
first_partyverifiedbuy here · x402$0.03 USDC per call on Base via x402
Badges
| Verified | Earned. First-party listing, operator-owned domain. |
| live-tested | Not yet: not checked yet. |
| trusted | Not yet: no independent sales yet. |
What the tiers mean: /badges
Trust · no independent sales yet
1 test sale by the seller's/operator's own wallet is shown but not counted toward trust
| Verified settlement | Amount | When | Counts toward trust |
|---|---|---|---|
| 0xf49fb2cc… (kit) | $0.03 | Oct 27, 2026, 10:53 AM ET | no: disclosed test purchase |
Use it
Seller site: https://seenly-skill-scan.vercel.app/mcp · JSON · kit.json · buy here:
/api/v1/call/seenly.seenly-mcp-server-scanPOST https://seenly-skill-scan.vercel.app/api/mcp-scanEmbed this badge
[](https://agentropolis.io/listing/seenly.seenly-mcp-server-scan)