Awal x402 pay path: payment authorized but rejected by server (links x402#1171)

[spirosrap]

Context

Linked upstream issue (primary):

• Facilitator verify returns invalid_payload (payer undefined) for exact/eip3009 requests from Awal x402#1171

I’m filing this here as a backup routing path because coinbase/awal currently resolves as 404/non-public, so I cannot cross-file directly in the Awal tracker.

Problem

From the Awal CLI path (npx awal@latest x402 pay), paid requests to an x402 endpoint can fail with:

Bridge communication error: X402 submission failed: Payment was authorized but rejected by server

Server-side verify logs show facilitator rejection:

• invalid_payload
• payer: undefined

Repro (client)

npx awal@latest x402 details https://rook-monetized-services.onrender.com/api/code-review --json

npx awal@latest x402 pay https://rook-monetized-services.onrender.com/api/code-review \
  -X POST \
  -d '{"code":"function add(a,b){return a+b}","language":"javascript"}' \
  --max-amount 500000

Repro (server observations)

• Route requirements are valid (exact, eip155:8453, eip3009)
• Verify still fails with invalid_payload
• Logs show smart-wallet/ERC-6492-shaped signature handling before rejection

Ask

Please route/triage this with the right team (Awal + x402 facilitator verification path). If this repo is not the right tracker, please point to the public one for Awal.

Again, primary detailed thread is here:

• Facilitator verify returns invalid_payload (payer undefined) for exact/eip3009 requests from Awal x402#1171