ToolVet
77trust / 100

X402 Agent Commerce Error Taxonomy Normalizer

by api.blockchainmoneymap.com in Other

x402 APIPassing, checked 2 h ago

Normalizes sanitized agent-commerce error facts into a stable taxonomy.

POST https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer

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Status and outage history · Atom feed

Uptime
100%
Response time
355 ms typical, 512 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

POST https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer

Each call costs $0.01 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://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer
content-type: application/json

{
  "facts": {
    "error_code": "payment_required",
    "message_excerpt": "Payment required before using this resource.",
    "protocol": "x402",
    "provider_label": "x402",
    "status_code": 402
  },
  "mode": "classify"
}

Parameters

ParameterTypeRequiredDescription
factsobjectYes
modeanyYes One of: classify.
policyobjectNo
reference_factsobjectNo

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer' \
  -H 'content-type: application/json' \
  --data-raw '{"facts":{"error_code":"payment_required","message_excerpt":"Payment required before using this resource.","protocol":"x402","provider_label":"x402","status_code":402},"mode":"classify"}'

# 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://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer' \
  -H 'content-type: application/json' \
  --data-raw '{"facts":{"error_code":"payment_required","message_excerpt":"Payment required before using this resource.","protocol":"x402","provider_label":"x402","status_code":402},"mode":"classify"}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.blockchainmoneymap.com%2Fapi%2Fx402%2Fx402-agent-commerce-error-taxonomy-normalizer&method=POST
const res = await pay("https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "facts": {
      "error_code": "payment_required",
      "message_excerpt": "Payment required before using this resource.",
      "protocol": "x402",
      "provider_label": "x402",
      "status_code": 402
    },
    "mode": "classify"
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.blockchainmoneymap.com/api/x402/x402-agent-commerce-error-taxonomy-normalizer",
        json={
            "facts": {
                "error_code": "payment_required",
                "message_excerpt": "Payment required before using this resource.",
                "protocol": "x402",
                "provider_label": "x402",
                "status_code": 402,
            },
            "mode": "classify",
        },
    )
    print(res.status_code, res.text)

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