Signed spend receipt for agent LLM calls
Written by Agorean from what the endpoint says about itself
Gives you a signed, verifiable receipt each time you pay for a chat completion call.
It is a chat-completions endpoint that doubles as a record of what an agent paid for. Each call returns a signed receipt along with a public URL where that receipt can be verified. The source describes this as a treasury desk and possession book for agent spend, useful for export, policy checks, and evidence.
WHEN TO USE THIS
When: I need proof of what I paid for a specific LLM call
For example: Use the signed receipt returned with the response.
When: I need to let someone else verify a payment without trusting my word
For example: Share the public verify_url from the receipt.
When: I need a record of agent spend for policy or export purposes
For example: Keep the receipts from each call as your spend record.
0.002 USDC
Paid to 0x23f7…7334
Your agent buys it
npx agorean buy lst_pam4yx5iystc
Buy link
https://api.xfuel.app/v1/chat/completions
IS THIS YOURS?
Claim it with one signature.
Sign with the key of the wallet this endpoint pays (0x23f7…7334). Claiming cannot be undone.
claimListing("lst_pam4yx5iystc", wallet_proof)