Server definition

Hash: sha256:4125fa2bd7336fdc996f0b613c2a65d466fd611944365c9d4472927bddc7d347
What it is: What a remote MCP server returned when asked what it offers: 1 tools

The blob, as servednamed by its sha256

{
  "instructions": "Call verify_source_claim with {url, claim}. Discovery (initialize, tools/list) is free. Verification is $0.01 USDC on Base via x402 and reuses POST /v1/verify. Unpaid calls return payment-required, not a claim verdict.",
  "tools": [
    {
      "description": "Verify one atomic factual claim against one public source URL. Return supported, contradicted, or insufficient-evidence with source snippets, or explicit blocked/unreachable/unsupported states. Not a general fact checker.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "claim": {
            "description": "One atomic factual assertion to check against that source only.",
            "maxLength": 500,
            "minLength": 3,
            "type": "string"
          },
          "url": {
            "description": "Public HTTP or HTTPS source page URL to inspect.",
            "maxLength": 2048,
            "type": "string"
          }
        },
        "required": [
          "url",
          "claim"
        ],
        "type": "object"
      },
      "name": "verify_source_claim",
      "outputSchema": {
        "additionalProperties": false,
        "properties": {
          "claim": {
            "description": "The claim that was checked.",
            "type": "string"
          },
          "content_hash": {
            "description": "Hash of retrieved source content.",
            "type": "string"
          },
          "evidence": {
            "description": "Compact source snippets used for the verdict.",
            "items": {
              "additionalProperties": false,
              "properties": {
                "evidence_type": {
                  "description": "Where the snippet came from on the source page.",
                  "enum": [
                    "visible_text",
                    "heading",
                    "json_ld",
                    "meta",
                    "status"
                  ],
                  "type": "string"
                },
                "location": {
                  "description": "Page location of the snippet, or null if unknown.",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "polarity": {
                  "description": "Whether the snippet supports, contradicts, or is neutral.",
                  "enum": [
                    "supports",
                    "contradicts",
                    "neutral"
                  ],
                  "type": "string"
                },
                "text": {
                  "description": "Source snippet that supports or contradicts the claim.",
                  "maxLength": 240,
                  "type": "string"
                }
              },
              "required": [
                "text",
                "location",
                "evidence_type",
                "polarity"
              ],
              "type": "object"
            },
            "maxItems": 3,
            "type": "array"
          },
          "final_url": {
            "description": "Final URL after redirects.",
            "type": "string"
          },
          "reasoning_summary": {
            "description": "Short machine-readable reason for the verdict.",
            "maxLength": 400,
            "type": "string"
          },
          "retrieval_method": {
            "description": "How the source page was fetched.",
            "enum": [
              "direct_http",
              "browser_run",
              "official_api",
              "unsupported"
            ],
            "type": "string"
          },
          "retrieved_at": {
            "description": "UTC timestamp of the check.",
            "type": "string"
          },
          "service_version": {
            "description": "Source Claim Proof service version.",
            "type": "string"
          },
          "source_status": {
            "description": "verified, blocked, unreachable, unsupported, or insufficient_evidence.",
            "enum": [
              "verified",
              "blocked",
              "unreachable",
              "unsupported",
              "insufficient_evidence"
            ],
            "type": "string"
          },
          "source_url": {
            "description": "Requested source URL.",
            "type": "string"
          },
          "verdict": {
            "description": "supported, contradicted, or insufficient_evidence.",
            "enum": [
              "supported",
              "contradicted",
              "insufficient_evidence"
            ],
            "type": "string"
          }
        },
        "required": [
          "verdict",
          "claim",
          "source_url",
          "final_url",
          "source_status",
          "evidence",
          "reasoning_summary",
          "retrieval_method",
          "retrieved_at",
          "content_hash",
          "service_version"
        ],
        "type": "object"
      }
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:4125fa2bd7336fdc996f0b613c2a65d466fd611944365c9d4472927bddc7d347 | sha256sum