ToolVet
78trust / 100

Receipt

by api.satledger.org in Other

x402 APIPassing, checked 3 h ago

One RFC 3161 timestamp receipt over a digest you supply. No account and no API key: the response is the whole deliverable. Your data is never sent - only its hash - and nothing about the request is retained here.

POST
https://api.satledger.org/x402/receipt
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
156 ms
439 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.satledger.org/x402/receipt

Each call costs $0.05 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.satledger.org/x402/receipt
content-type: application/json

{
  "digest": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"
}

Parameters

ParameterTypeRequiredDescription
digeststringNoSHA-256 of whatever you want timestamped, as 64 hex characters. Hash it yourself; the data never leaves your side.
digestsarray of stringNoUp to 10 SHA-256 hashes. Requires the batch price; the single price permits one.

Example response

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

{
  "digest": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
  "hash_algorithm": "sha256",
  "standard": "RFC 3161",
  "timestamp_token_der_b64": "MIIS...(RFC 3161 token, base64)",
  "tsa_url": "https://freetsa.org/tsr",
  "verify": {
    "step_1_the_time": "openssl ts -reply -in token.der -text"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.satledger.org/x402/receipt' \
  -H 'content-type: application/json' \
  --data-raw '{"digest":"9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"}'

# 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.satledger.org/x402/receipt' \
  -H 'content-type: application/json' \
  --data-raw '{"digest":"9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.satledger.org%2Fx402%2Freceipt&method=POST
const res = await pay("https://api.satledger.org/x402/receipt", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "digest": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08"
  }),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
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.satledger.org/x402/receipt",
        json={
            "digest": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
        },
    )
    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
3 h agoPassed402115 ms$0.05
6 h agoPassed402412 ms$0.05
9 h agoPassed402166 ms$0.05
12 h agoPassed402123 ms$0.05
15 h agoPassed402190 ms$0.05
Show 10 older checks
18 h agoPassed402125 ms$0.05
22 h agoPassed402156 ms$0.05
25 h agoPassed402121 ms$0.05
30 h agoPassed402189 ms$0.05
35 h agoPassed402126 ms$0.05
40 h agoPassed402181 ms$0.05
46 h agoPassed402116 ms$0.05
2 days agoPassed402156 ms$0.05
2 days agoPassed402202 ms$0.05
3 days agoPassed402137 ms$0.05