JWT sign · JWT Sign
by JWT sign
POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
$0.001
per call · USD Coin on Base
Mint a signed JSON Web Token (HMAC: HS256 default, HS384, HS512) from a payload + secret. Pairs with jwt-decode/jwt-verify to complete the trio. Deterministic - same payload, secret, and alg always produce the same token.
Endpoint
POST https://agent402.tools/api/jwt-sign3
Calls / 30d
1
Unique payers / 30d
Aug 31
Last called
exact
Payment scheme
Call this service
TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://agent402.tools/api/jwt-sign", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"alg": "HS256",
"payload": {
"role": "admin",
"sub": "123"
},
"secret": "s3cr3t"
}),
});
const data = await res.json();cURL
curl -X POST \
"https://agent402.tools/api/jwt-sign" \
-H "Content-Type: application/json" \
-d '{"alg":"HS256","payload":{"role":"admin","sub":"123"},"secret":"s3cr3t"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"alg": "HS256",
"token": "eyJhbGci..."
}Payment details
Pay to
0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0Asset
USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto
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