ToolVet
75trust / 100

Evidence Claim Coverage

by Claim citation coverage in Security & trust

x402 APIPassing, checked 9 h ago

Check declared citation coverage of up to 64 claims against bounded source and locator inventories. Reject duplicate IDs and dangling references. Coverage is structural, not proof that a source supports a claim. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.

POST https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
182 ms typical, 182 ms slowest 5%
Last check
9 h ago
Next check
any minute now

How to call it

POST https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage

Each call costs $0.023002 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage
content-type: application/json

{
  "citations": [
    {
      "citationId": "c1",
      "locatorId": "l1",
      "sourceId": "s1"
    }
  ],
  "claims": [
    {
      "citationIds": [
        "c1"
      ],
      "claimId": "claim-1"
    },
    {
      "citationIds": [],
      "claimId": "claim-2"
    }
  ],
  "dataClass": "synthetic",
  "sources": [
    {
      "locatorIds": [
        "l1"
      ],
      "sourceId": "s1"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
citationsarrayYes
claimsarrayYes
dataClassstringYes One of: public, synthetic.
sourcesarrayYes

Example response

The provider's example. We can't check it without paying.

Example response, 43 lines
{
  "data": {
    "chargedAmount": "23002",
    "inputHash": "sha256:913e9e6e925daa34a2445e813e8d650ac90cec944a0cf8c6ba6bc5f5b…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "claim-citation-coverage",
    "result": {
      "claims": [
        {
          "citationCount": 1,
          "claimId": "claim-1",
          "covered": true,
          "sourceIds": [
            "s1"
          ]
        }
      ],
      "coverageBps": 5000,
      "coveredClaims": 1,
      "dataClass": "synthetic",
      "inputSha256": "sha256:913e9e6e925daa34a2445e813e8d650ac90cec944a0cf8c6ba6bc5f5b…",
      "limits": [
        "Public/synthetic is a caller declaration, not content inspection…"
      ],
      "resultSha256": "sha256:cad669906ec1fa0f380efa164f7409ecb3b7b4afc412d411e2decd08c…",
      "semanticSupportVerified": false,
      "sourcesVerified": false,
      "uncoveredClaimIds": [
        "claim-2"
      ],
      "unusedCitationIds": []
    },
    "resultHash": "sha256:011293c9564692aa62930f8e63a1b455639390ba7affc7bc7c8f09a52…",
    "sourceContractAmount": "23000",
    "version": "maha-legacy-adapter/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.023002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage' \
  -H 'content-type: application/json' \
  --data-raw '{"citations":[{"citationId":"c1","locatorId":"l1","sourceId":"s1"}],"claims":[{"citationIds":["c1"],"claimId":"claim-1"},{"citationIds":[],"claimId":"claim-2"}],"dataClass":"synthetic","sources":[{"locatorIds":["l1"],"sourceId":"s1"}]}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage' \
  -H 'content-type: application/json' \
  --data-raw '{"citations":[{"citationId":"c1","locatorId":"l1","sourceId":"s1"}],"claims":[{"citationIds":["c1"],"claimId":"claim-1"},{"citationIds":[],"claimId":"claim-2"}],"dataClass":"synthetic","sources":[{"locatorIds":["l1"],"sourceId":"s1"}]}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.023002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.023002" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.023002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fverify%2Fevidence%2Fclaim-coverage&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "citations": [
      {
        "citationId": "c1",
        "locatorId": "l1",
        "sourceId": "s1"
      }
    ],
    "claims": [
      {
        "citationIds": [
          "c1"
        ],
        "claimId": "claim-1"
      },
      {
        "citationIds": [],
        "claimId": "claim-2"
      }
    ],
    "dataClass": "synthetic",
    "sources": [
      {
        "locatorIds": [
          "l1"
        ],
        "sourceId": "s1"
      }
    ]
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.023002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.023002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/verify/evidence/claim-coverage",
        json={
            "citations": [
                {
                    "citationId": "c1",
                    "locatorId": "l1",
                    "sourceId": "s1",
                },
            ],
            "claims": [
                {
                    "citationIds": [
                        "c1",
                    ],
                    "claimId": "claim-1",
                },
                {
                    "citationIds": [],
                    "claimId": "claim-2",
                },
            ],
            "dataClass": "synthetic",
            "sources": [
                {
                    "locatorIds": [
                        "l1",
                    ],
                    "sourceId": "s1",
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
9 h agoPassed402182 ms$0.023