ToolVet
78trust / 100

Agenttalk Declare

by AgentTalk in Onchain & crypto

x402 APIPassing, checked 1 h ago

Before your agent negotiates or shares data with another agent, make both prove they qualify. Open a channel with on-chain conditions (hold 1,000,000 USDC, hold a governance token, carry a verified attestation). Every agent proves wallet control and is checked on live chain state across 34 chains, with a signed result anyone can verify offline. Re-check on demand; whoever stops qualifying is removed. No account or API key. Pay in USDC on Base, Polygon or Arbitrum.

POST
https://skyemeta.com/api/agenttalk/declare
Price
$0.5
per call in USDC
Uptime
100%
last 30 days
Response time
243 ms
439 ms slowest 5%
Last check
Passed
1 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://skyemeta.com/api/agenttalk/declare

Each call costs $0.5 in USDC on Polygon, 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://skyemeta.com/api/agenttalk/declare
content-type: application/json

{
  "capacity": 2,
  "conditions": [
    {
      "chainId": 8453,
      "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "threshold": "100",
      "type": "token_balance"
    }
  ],
  "nonce": "...",
  "signature": "0x...",
  "wallet": "0x..."
}

Example response

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

{
  "capacity": 2,
  "channelId": "ch_...",
  "conditionsHash": "0x...",
  "expiresAt": "2026-01-01T00:00:00.000Z",
  "reverifyPolicy": "members"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.5.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://skyemeta.com/api/agenttalk/declare' \
  -H 'content-type: application/json' \
  --data-raw '{"capacity":2,"conditions":[{"chainId":8453,"contractAddress":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","threshold":"100","type":"token_balance"}],"nonce":"...","signature":"0x...","wallet":"0x..."}'

# 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://skyemeta.com/api/agenttalk/declare' \
  -H 'content-type: application/json' \
  --data-raw '{"capacity":2,"conditions":[{"chainId":8453,"contractAddress":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","threshold":"100","type":"token_balance"}],"nonce":"...","signature":"0x...","wallet":"0x..."}' \
  | 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 $0.5 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.5" });
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 $0.5 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fskyemeta.com%2Fapi%2Fagenttalk%2Fdeclare&method=POST
const res = await pay("https://skyemeta.com/api/agenttalk/declare", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "capacity": 2,
    "conditions": [
      {
        "chainId": 8453,
        "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "threshold": "100",
        "type": "token_balance"
      }
    ],
    "nonce": "...",
    "signature": "0x...",
    "wallet": "0x..."
  }),
});
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 $0.5 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.5"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://skyemeta.com/api/agenttalk/declare",
        json={
            "capacity": 2,
            "conditions": [
                {
                    "chainId": 8453,
                    "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                    "threshold": "100",
                    "type": "token_balance",
                },
            ],
            "nonce": "...",
            "signature": "0x...",
            "wallet": "0x...",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
1 h agoPassed402243 ms$0.5
6 h agoPassed402247 ms$0.5
11 h agoPassed402230 ms$0.5
15 h agoPassed402439 ms$0.5
20 h agoPassed402244 ms$0.5
Show 2 older checks
25 h agoPassed402190 ms$0.5
29 h agoPassed402213 ms$0.5