← oblique.markets · all endpoints

POST /api/v1/paid/settlement-verify — $0.01 per call

Use when an agent needs settlement verify. Returns Real on-chain x402 settlement verification on Base mainnet: fetches the transaction receipt via JSON-RPC, decodes USDC Transfer events (payer, payee, amount), reports success/reverted status and confirmation depth, and issues a persistent verification_id receipt. $0.01.

Try it

curl -i https://api.oblique.markets/api/v1/paid/settlement-verify
# → HTTP 402 with the exact payment requirements; pay, then retry with PAYMENT-SIGNATURE (x402) or Authorization: Payment (MPP)

Input schema

{
 "type": "object",
 "properties": {
  "tx_hash": {
   "type": "string",
   "pattern": "^0x[0-9a-fA-F]{64}$",
   "description": "Transaction hash to verify on Base mainnet"
  },
  "chain_id": {
   "type": "integer",
   "description": "Chain id (only 8453, Base mainnet, is supported)",
   "default": 8453
  }
 },
 "required": [
  "tx_hash"
 ]
}

Example output

{
 "verification_id": "7f3c1a90-2b44-4e0b-9a71-8d2f5c6e1b23",
 "tx_hash": "0x9a1de1a4c3f2b06a7c55e01d9f4b2b6f0e8a33c15d7f90ab12cd34ef56ab78cd",
 "chain_id": 8453,
 "settled": true,
 "found": true,
 "status": "success",
 "block_number": 33421187,
 "confirmations": 512,
 "transfers": [
  {
   "from": "0x1c7d4b196cb0c7b01d743fbc6116a902379c7238",
   "to": "0x209693bc6afc0c5328ba36faf03c514ef312287c",
   "amount_atomic": "10000",
   "amount_usdc": 0.01
  }
 ],
 "payer": "0x1c7d4b196cb0c7b01d743fbc6116a902379c7238",
 "payee": "0x209693bc6afc0c5328ba36faf03c514ef312287c",
 "amount_usdc": 0.01,
 "verified_at": "2026-08-10T12:00:00.000Z",
 "stored": true
}

Clients

Worked TypeScript/Python clients and MCP configs: oblique-markets/oblique-examples · Agent Skills: oblique-markets/skills

Pay per call with x402 (USDC on Base or Solana) or MPP (pathUSD on Tempo). No accounts. Machine doors: /.well-known/x402.json · /openapi.json · /llms-full.txt · MCP · humans: remote.observer