Server definition

Hash: sha256:8a6edc156ee6680d99bebad1c3d08f591f8155cf5b368cc937b452225e6a7d17
What it is: What a remote MCP server returned when asked what it offers: 11 tools

The blob, as servednamed by its sha256

{
  "instructions": "PulseFeed — verify before you pay or install. Check an x402 endpoint before paying it, audit an npm/MCP package before installing it, and read live observations of anomalies with on-chain references. All tools here are free and read-only.",
  "tools": [
    {
      "description": "Before paying an unknown x402 endpoint, check whether it is safe: liveness, trust score (0-100), anomaly flags (receiver address changed between observations, catalog price vs. challenge price, invalid receiver, testnet listed as production, scheme outside the x402 spec), receiver stability and observation-count-qualified uptime — with a pay/avoid verdict. Reads the challenge from both the response body and the v2 PAYMENT-REQUIRED header. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "url": {
            "description": "The x402 endpoint URL to verify",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "check_x402_endpoint",
      "outputSchema": null
    },
    {
      "description": "Before installing an MCP server or npm package, audit it: does it run an INSTALL SCRIPT (arbitrary code execution at `npm i`), is it abandoned, does it ship a repository and license, weekly downloads, provenance — with a safe/caution/avoid verdict. ~11% of audited MCP servers run install scripts. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "package": {
            "description": "npm package name of the MCP server, e.g. @scope/name",
            "type": "string"
          }
        },
        "required": [
          "package"
        ],
        "type": "object"
      },
      "name": "mcp_check_server",
      "outputSchema": null
    },
    {
      "description": "The rug pull check. `mcp_check_server` answers whether a package is safe TODAY; this answers what CHANGED after it was adopted: an install script added in a later version (arbitrary code on `npm i` that was not there at review time), package ownership swapped, repository removed, package unpublished, build provenance lost. Pass your own dependency list to check it in one call. Derived from a daily external re-audit of the whole MCP package population — an event exists only because a snapshot from before it exists. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "days": {
            "description": "Window in days (default 30)",
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          },
          "packages": {
            "description": "npm package names to check, e.g. your installed MCP servers. Omit for the whole ecosystem feed.",
            "items": {
              "type": "string"
            },
            "maxItems": 200,
            "type": "array"
          }
        },
        "type": "object"
      },
      "name": "mcp_drift_check",
      "outputSchema": null
    },
    {
      "description": "State of MCP Security: how many audited MCP servers run an arbitrary install script, are abandoned, ship no repository or license — with day-over-day deltas and a sample of currently-flagged servers. From a daily audit of the MCP server catalog. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "mcp_security_report",
      "outputSchema": null
    },
    {
      "description": "List PulseFeed's paid products and how to pay via x402 (USDC on Base): deep trust check, endpoint track record, bulk trust dataset, full MCP drift series, the cross-domain Data API and on-chain token signals. Includes the client-side spend-cap gotcha for x402-fetch.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "pulsefeed_products",
      "outputSchema": null
    },
    {
      "description": "What changed in the x402 ecosystem recently: services that stopped returning a valid challenge, receiver (payTo) changes, price changes, recoveries, newly-seen services. Derived from compounding time-series that cannot be reconstructed after the fact. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "days": {
            "description": "Window in days (default 7)",
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "x402_changes",
      "outputSchema": null
    },
    {
      "description": "FREE sample of the PulseFeed Data API: top-10 live x402 services as FULL records (compounding payTo/price history, anomaly flags, on-chain receiver profile), top-10 MCP servers with full audit profile, and 3 live incidents.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_data_sample",
      "outputSchema": null
    },
    {
      "description": "Live health of the whole x402 agent-payment ecosystem: tracked/alive/dead counts, catalog-accuracy audit (what share of listings called 'healthy' actually work), risk-level distribution, receiver stability and on-chain receiver profiles. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_ecosystem_stats",
      "outputSchema": null
    },
    {
      "description": "Anomalies observed in live x402 endpoints by continuous independent measurement: receiver-address changes between observations, catalog price vs. challenge price mismatches, invalid receivers, testnet endpoints listed as production, payment schemes outside the x402 spec — EACH WITH AN ON-CHAIN REFERENCE on Base. Measurements, not accusations of intent. Check before paying anything. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "days": {
            "description": "Look-back window in days (default 30)",
            "maximum": 365,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "x402_incidents",
      "outputSchema": null
    },
    {
      "description": "Top x402 services ranked by the open PulseFeed Trust Score (0-100), with price and network — the most reliable live agent-payment endpoints right now. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_leaderboard",
      "outputSchema": null
    },
    {
      "description": "List x402 agent-payment services that are currently ALIVE and return a valid x402 challenge, ranked by PulseFeed Trust Score, plus ecosystem risk map. Use this to pick a service with a track record instead of paying an endpoint you have not checked. Free.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "x402_working_services",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:8a6edc156ee6680d99bebad1c3d08f591f8155cf5b368cc937b452225e6a7d17 | sha256sum