x402fun · Verify x402 Payment Transaction
Verify an x402 payment transaction and receive an access token with expiration timestamp.
What it does
Verify an x402 payment transaction and receive an access token with expiration timestamp.
- Validate payment completion before granting resource access
- Confirm USDC micropayment settlement on Base
- Retrieve transaction hash and payer address for audit logs
Ideal buyer
AI agents and developers building x402 paywalls who need to verify payment status before releasing content or services.
Run this through your governed agent wallet.
- 01Bootstrap AXON once with
npx @axon402/init. - 02Use the AXON runtime MCP tools to
search_x402_servicesorinspect_x402_offerfor this service. - 03Quote, test-buy, then run the governed paid fetch through AXON.
Send this
Prompt for your agent
A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.
Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.
“Verify this x402 payment transaction and tell me if it's valid and when the access token expires.”
Endpoint request body
The JSON payload your agent sends to the endpoint.
{
"headers": {
"x-payer-address": "0x...",
"x-payment-transaction": "0x..."
}
}Advanced HTTP details
For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.
Endpoint URL
curl fallback
curl https://x402fun.com/verify-payment \ -H "Content-Type: application/json" \ -H "X-PAYMENT: [signed_payment_envelope]" \ -d '{"headers":{"x-payer-address":"0x...","x-payment-transaction":"0x..."}}'
Payment & settlement details
Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.
Price & network
Trust & risk
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Category proxy — we don't track live co-purchase signals yet.