Security Certfr27 Evidence

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://foundry-api-production-95ae.up.railway.app/v1/security/certfr27-evidence' \
  -H 'content-type: application/json' \
  --data-raw '{"client_request_id":"commercial-certfr27-example","native_schema_version":"0.1.0","query":{"native_id":"CERTFR-2026-AVI-0326","record_id":"b-candidate:certfr:native-evidence:CERTFR-2026-AVI-0326:f64b46fdbeef6dd5","snapshot_id":"sha256:0f3ac520ec0fe8db7d1e43da83056d0c55b1bcde7d87c3ef52c47e54e981b1e0"}}'

# 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://foundry-api-production-95ae.up.railway.app/v1/security/certfr27-evidence' \
  -H 'content-type: application/json' \
  --data-raw '{"client_request_id":"commercial-certfr27-example","native_schema_version":"0.1.0","query":{"native_id":"CERTFR-2026-AVI-0326","record_id":"b-candidate:certfr:native-evidence:CERTFR-2026-AVI-0326:f64b46fdbeef6dd5","snapshot_id":"sha256:0f3ac520ec0fe8db7d1e43da83056d0c55b1bcde7d87c3ef52c47e54e981b1e0"}}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ffoundry-api-production-95ae.up.railway.app%2Fv1%2Fsecurity%2Fcertfr27-evidence&method=POST
const res = await pay("https://foundry-api-production-95ae.up.railway.app/v1/security/certfr27-evidence", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "client_request_id": "commercial-certfr27-example",
    "native_schema_version": "0.1.0",
    "query": {
      "native_id": "CERTFR-2026-AVI-0326",
      "record_id": "b-candidate:certfr:native-evidence:CERTFR-2026-AVI-0326:f64b46fdbeef6dd5",
      "snapshot_id": "sha256:0f3ac520ec0fe8db7d1e43da83056d0c55b1bcde7d87c3ef52c47e54e981b1e0"
    }
  }),
});
console.log(res.status, await res.text());

# 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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://foundry-api-production-95ae.up.railway.app/v1/security/certfr27-evidence",
        json={
            "client_request_id": "commercial-certfr27-example",
            "native_schema_version": "0.1.0",
            "query": {
                "native_id": "CERTFR-2026-AVI-0326",
                "record_id": "b-candidate:certfr:native-evidence:CERTFR-2026-AVI-0326:f64b46fdbeef6dd5",
                "snapshot_id": "sha256:0f3ac520ec0fe8db7d1e43da83056d0c55b1bcde7d87c3ef52c47e54e981b1e0",
            },
        },
    )
    print(res.status_code, res.text)