{"name":"dev.modelmarket/mcp-security","slug":"modelmarket-mcp-security","title":"MCP security checks — WARDEN and HISTOR","description":"Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.","url":"https://mcp.market/server/modelmarket-mcp-security","rating":null,"grade":"A","score":91,"certified":false,"status":"active","category":"security","tags":["security"],"presence":{"score":23,"stars":0,"forks":0,"downloads_week":null,"last_push_at":"2026-10-26T14:29:17.000Z","license":"MIT"},"uptime":{"percent":96,"checks":26,"ok":25,"last_checked_at":"2026-11-02T10:50:32.018Z","last_ok_at":"2026-11-02T10:50:32.018Z","latency_ms":539},"claimed":false,"transport":"remote","callable_via_gateway":true,"default_price_micros":0,"repository":"https://github.com/alexar76/warden","website":"https://modelmarket.dev/tools/","version":"1.0.0","remotes":[{"type":"streamable-http","url":"https://modelmarket.dev/tools/mcp/security"}],"packages":[],"tools":[{"name":"histor_check","description":"Look up an MCP server in HISTOR, a public append-only log of MCP tool sets: when its tool set was first pinned, how often it changed, and what the pattern scan found. HISTOR answers from its own observations and never contacts the server.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"endpoint":{"type":"string","description":"https URL of the MCP server"},"name":{"type":"string","description":"Or its registry name, e.g. io.github.owner/server"}}}},{"name":"tool_list_cost","description":"How many tokens an MCP server's tool list adds to every model request, what that costs per 1,000 requests, the heaviest tools, and where it sits among 18,204 packages and 16,170 remote servers. Send a tools/list or name a server HISTOR observes.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"tools":{"type":"array","items":{"type":"object"},"description":"A tools/list result"},"server":{"type":"string","description":"Or a server HISTOR observes: https endpoint, npm:<package>, pypi:<package> or registry name"}}}},{"name":"warden_scan","description":"Scan an MCP server's tools/list with WARDEN, the open-source MCP firewall: static rules and a threat list over every name, description, schema and annotation. Returns allow or block and each finding with its rule and severity. Quoted fragments of the scanned text are left out of the answer.","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"tools":{"type":"array","items":{"type":"object"},"description":"The server's tools/list result: [{name, description, inputSchema, ...}]"},"server":{"type":"object","description":"Optional {name, url} to label the verdict"}},"required":["tools"]}},{"name":"x402_check","description":"Check a signed x402 USDC payment before submitting it: recovers the EIP-712 signer, runs USDC's own checks and the seller's terms, and when the signature fails names the domain it was really made for (e.g. Base Sepolia's 'USDC' used on Base, where USDC is 'USD Coin').","write_action":false,"price_micros":0,"input_schema":{"type":"object","properties":{"x_payment":{"type":"string","description":"The X-PAYMENT header (base64)"},"requirements":{"type":"object","description":"The 402's accepts entry: payTo, amount, asset, network"},"authorization":{"type":"object","description":"Instead of x_payment: from, to, value, validAfter, validBefore, nonce"},"signature":{"type":"string","description":"With authorization: the 65-byte hex signature"},"network":{"type":"string","description":"With authorization: base, base-sepolia, … or eip155:<id>"}}}}],"scan":{"score":91,"grade":"A","scanned_at":"2026-10-27T05:16:31.171Z","report":{"scannerVersion":"0.1.10","scannedAt":"2026-10-27T05:16:31.097Z","components":{"code":{"score":-1,"max":25,"notes":["remote-only server, no package to scan"]},"reliability":{"score":20,"max":20,"notes":["remote reachable in 373ms"]},"poisoning":{"score":15,"max":15,"notes":["4 tool descriptions checked"]},"auth":{"score":10,"max":15,"notes":["open endpoint, read-only tools"]},"maintenance":{"score":15,"max":15,"notes":["last push 1 days ago"]},"identity":{"score":8,"max":10,"notes":["endpoint served from the registry-verified namespace domain"]}},"findings":[],"inputs":{"probes":[{"url":"https://modelmarket.dev/tools/mcp/security","reachable":true,"authRequired":false,"latencyMs":373,"serverInfo":{"name":"modelmarket-security","version":"1.0.0"}}],"packages":[],"repo":{"found":true,"owner":"alexar76","repo":"warden","archived":false,"pushedAt":"2026-10-26T14:29:17Z","stars":0,"forks":0,"openIssues":0,"ownerType":"User","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/86793359?v=4","ownerCreatedAt":"2021-07-01T15:45:01Z","license":"MIT"},"icon":{"url":"https://avatars.githubusercontent.com/u/86793359?v=4&s=128","source":"github"},"presence":{"stars":0,"forks":0,"downloadsWeek":null,"license":"MIT","lastPushAt":"2026-10-26T14:29:17.000Z","score":23}}}},"grade_history":[],"reviews":[]}