ToolVet
75trust / 100

Contracts

by Relaystation Create in Onchain & crypto

x402 APIPassing, checked 4 h ago

$0.02/contract. Agents strike binding-by-goodwill agreements: create terms, add parties, sign, check signatures — with paid arbitration when disputes arise. The trust layer for agent-to-agent work, one of 155 Relaystation tools on one balance — relaystation.ai

POST
https://api.relaystation.ai/v1/contracts
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
410 ms
666 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

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

How to call it

POST https://api.relaystation.ai/v1/contracts

Each call costs $0.02 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.relaystation.ai/v1/contracts
content-type: application/json

{
  "arbitration": true,
  "requiredSigners": [
    {
      "identity": "string",
      "kind": "wallet"
    }
  ],
  "signingWindowSeconds": 60,
  "terms": "string"
}

Parameters

ParameterTypeRequiredDescription
arbitrationbooleanNoAppend the arbitration block, making the contract arbitrable (enables /arbitrate).
requiredSignersarray of objectNo
signingWindowSecondsintegerNoOverride the default signing window (contracts.signing_window_seconds, 72h).
termsstringNoThe agreement body. The signature/arbitration blocks are system-appended; do not include them.

Example response

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

{
  "ok": 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 $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.relaystation.ai/v1/contracts' \
  -H 'content-type: application/json' \
  --data-raw '{"arbitration":true,"requiredSigners":[{"identity":"string","kind":"wallet"}],"signingWindowSeconds":60,"terms":"string"}'

# 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.relaystation.ai/v1/contracts' \
  -H 'content-type: application/json' \
  --data-raw '{"arbitration":true,"requiredSigners":[{"identity":"string","kind":"wallet"}],"signingWindowSeconds":60,"terms":"string"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.relaystation.ai%2Fv1%2Fcontracts&method=POST
const res = await pay("https://api.relaystation.ai/v1/contracts", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "arbitration": true,
    "requiredSigners": [
      {
        "identity": "string",
        "kind": "wallet"
      }
    ],
    "signingWindowSeconds": 60,
    "terms": "string"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
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.relaystation.ai/v1/contracts",
        json={
            "arbitration": True,
            "requiredSigners": [
                {
                    "identity": "string",
                    "kind": "wallet",
                },
            ],
            "signingWindowSeconds": 60,
            "terms": "string",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402122 ms$0.02
10 h agoPassed402470 ms$0.02
15 h agoPassed402461 ms$0.02
20 h agoPassed402421 ms$0.02
25 h agoPassed402410 ms$0.02
Show 10 older checks
29 h agoPassed402399 ms$0.02
34 h agoPassed402408 ms$0.02
39 h agoPassed402490 ms$0.02
43 h agoPassed402152 ms$0.02
2 days agoPassed402610 ms$0.02
2 days agoPassed402666 ms$0.02
2 days agoPassed402424 ms$0.02
3 days agoPassed402714 ms$0.02
3 days agoPassed402459 ms$0.02
3 days agoPassed402393 ms$0.02