x402 seller conformance check
Seller Check Find out if buyers can pay your x402 API before they try.
Checks that an x402 API on XDC answers with a correct payment challenge: the token, the signing domain and the facilitator.
For: Teams that sell an API with x402 payments on XDC.
At a glance
- What it checks
- The HTTP 402 challenge, the EIP-712 signing domain, the asset address and the facilitator health
- How
- Public HTTP probes and public chain reads; no payment is made
- Result
- A pass or fix-this list per check
- Price
- Coming soon
How it will work
- You will enter the URL of your paid endpoint.
- FeedPlumb will request it without payment and read the 402 challenge.
- It will compare the challenge with the token contract and the facilitator.
- You will get a list of what passes and what to fix.
Questions
Does it pay my API?
No. It only reads the unpaid 402 response and public chain data.
Can I run it on every release?
A repeatable check is planned. Details are [to be announced].
Related
- Buyer Sandboxx402 test buyer on ApothemTry paying an x402 API end to end on the XDC Apothem test network, without real money.Coming soon
- MeterKitSelf-hosted API billing kitAPI keys, usage metering and invoice exports for your own API, to run on your own server.Coming soon
- AgentReceiptsReceipts for AI agent paymentsVerifiable receipts for API calls your AI agents paid for, anchored on XDC once a day.Coming soon
Planned product. Features, dates and prices are [to be announced]. Nothing on this page is advice.