ToolVet
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Micro Provenance Graph Integrity

by Provenance graph integrity in Other

x402 APIPassing, checked 4 h ago

Inspect a declared dependency graph of up to 64 nodes and 128 edges: exact cycle membership, source-root reachability, and deterministic graph digest. Duplicate edges and dangling references are rejected. Hash declarations are not authenticated.

POST https://www.mahastrategies.com/api/v1/micro/provenance-graph-integrity

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
362 ms typical, 638 ms slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

POST https://www.mahastrategies.com/api/v1/micro/provenance-graph-integrity

Each call costs $0.0325 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/micro/provenance-graph-integrity
content-type: application/json

{
  "dataClass": "synthetic",
  "edges": [
    {
      "edgeId": "e1",
      "from": "p1",
      "relation": "derived-from",
      "to": "s1"
    }
  ],
  "nodes": [
    {
      "digestHash": "sha256:41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d",
      "kind": "source",
      "nodeId": "s1"
    },
    {
      "digestHash": "sha256:0886b051075687c18a9ae5075383feb8400fbe4328c6e4bd45b77b30f1e73b54",
      "kind": "passage",
      "nodeId": "p1"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
dataClassstringYes One of: public, synthetic.
edgesarrayYes
nodesarrayYes

Example response

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

Example response, 27 lines
{
  "amountBaseUnits": "32500",
  "boundaries": [
    "Public or synthetic inputs only. Caller labels are declarations,…"
  ],
  "inputDigest": "sha256:7f3cf1641d88dcf696562565f5a0d85b10ff6e2280550d397705df766…",
  "offerId": "provenance-graph-integrity",
  "receiptDigest": "sha256:b470cb6ff6c70a21c566b7a9a2d567deca67e51475c9af311caa1e85e…",
  "result": {
    "cycleNodeIds": [],
    "dataClass": "synthetic",
    "edgeDirection": "from-depends-on-to",
    "graphSha256": "sha256:8b6963a7ea4c8e01e2e4035bdedac4d1883eb3f4ec34ceea08b8924c9…",
    "inputSha256": "sha256:7f3cf1641d88dcf696562565f5a0d85b10ff6e2280550d397705df766…",
    "limits": [
      "Public/synthetic is a caller declaration, not content inspection…"
    ],
    "resultSha256": "sha256:ccb59b58cff91774c419fbfc44cc770ecc4075aee533b2314350353b4…",
    "rootlessNodeIds": [],
    "sourceRootIds": [
      "s1"
    ],
    "sourcesVerified": false,
    "state": "rooted"
  },
  "version": "maha-microproducts/0.1"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.0325.

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/micro/provenance-graph-integrity' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","edges":[{"edgeId":"e1","from":"p1","relation":"derived-from","to":"s1"}],"nodes":[{"digestHash":"sha256:41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d","kind":"source","nodeId":"s1"},{"digestHash":"sha256:0886b051075687c18a9ae5075383feb8400fbe4328c6e4bd45b77b30f1e73b54","kind":"passage","nodeId":"p1"}]}'

# 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/micro/provenance-graph-integrity' \
  -H 'content-type: application/json' \
  --data-raw '{"dataClass":"synthetic","edges":[{"edgeId":"e1","from":"p1","relation":"derived-from","to":"s1"}],"nodes":[{"digestHash":"sha256:41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d","kind":"source","nodeId":"s1"},{"digestHash":"sha256:0886b051075687c18a9ae5075383feb8400fbe4328c6e4bd45b77b30f1e73b54","kind":"passage","nodeId":"p1"}]}' \
  | 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 $0.0325 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.0325" });
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 $0.0325 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fmicro%2Fprovenance-graph-integrity&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/micro/provenance-graph-integrity", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "dataClass": "synthetic",
    "edges": [
      {
        "edgeId": "e1",
        "from": "p1",
        "relation": "derived-from",
        "to": "s1"
      }
    ],
    "nodes": [
      {
        "digestHash": "sha256:41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d",
        "kind": "source",
        "nodeId": "s1"
      },
      {
        "digestHash": "sha256:0886b051075687c18a9ae5075383feb8400fbe4328c6e4bd45b77b30f1e73b54",
        "kind": "passage",
        "nodeId": "p1"
      }
    ]
  }),
});
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 $0.0325 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.0325"})
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/micro/provenance-graph-integrity",
        json={
            "dataClass": "synthetic",
            "edges": [
                {
                    "edgeId": "e1",
                    "from": "p1",
                    "relation": "derived-from",
                    "to": "s1",
                },
            ],
            "nodes": [
                {
                    "digestHash": "sha256:41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d",
                    "kind": "source",
                    "nodeId": "s1",
                },
                {
                    "digestHash": "sha256:0886b051075687c18a9ae5075383feb8400fbe4328c6e4bd45b77b30f1e73b54",
                    "kind": "passage",
                    "nodeId": "p1",
                },
            ],
        },
    )
    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.

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