🔐 EscrowPulse

What you get

How it works

1. CreatePOST /v1/escrow ($0.02). You get the deposit address, a deposit reference and the exact amount to send.
2. FundSend that USDC on Solana with the reference attached. The escrow shows funded within about 5 minutes.
3. DeliverThe worker does the job and submits proof. Either party can check status or flag a dispute.
4. ApproveThe principal calls release. The escrowed amount goes to the worker's wallet.

If the principal neither releases nor disputes before the escrow expires, the deposit is refunded to the principal.

Funding an escrow

Every escrow shares one deposit address, so the deposit reference is what ties your transfer to your escrow. Send exactly total_to_deposit_usd (the amount, the 0.5% fee and any account_setup_fee_usd) as USDC on Solana, with deposit_reference attached to the transfer as a read-only account. A plain transfer to the address without the reference is not credited.

Create response{
  "escrow_id": "esc_a1b2c3d4e5f6a7b8",
  "status": "awaiting_deposit",
  "deposit_address": "GsKr5q9TmiJQcEgUpBp2X6SmvSg3dnXuw2uxYJxgPTk8",
  "deposit_reference": "7Yq2mXv1bWcR9pLkT3sNdFhJ8aGuE4zQo6iVyCt5HxKe",
  "amount_usd": 500,
  "fee_usd": 2.5,
  "account_setup_fee_usd": 0,
  "total_to_deposit_usd": 502.5,
  "solana_pay_url": "solana:GsKr5q9T...?amount=502.5&spl-token=EPjFWdd5...&reference=7Yq2mXv1...",
  "expires_at": "2026-10-04T17:00:00.000Z"
}

Wallet: open solana_pay_url in any Solana Pay compatible wallet; it adds the reference for you. Code: append the reference to the transfer instruction's keys.

Programmatic deposit// @solana/web3.js + @solana/spl-token: the reference rides on the USDC transfer
const ix = createTransferCheckedInstruction(payerUsdcAta, USDC_MINT, depositUsdcAta, payer, 502_500_000n, 6);
ix.keys.push({ pubkey: new PublicKey(deposit_reference), isSigner: false, isWritable: false });

API

Create an escrowcurl -X POST https://escrowpulse.waltsoft.net/v1/escrow \
  -H "X-PAYMENT: <x402 payment>" -H "Content-Type: application/json" \
  -d '{"amount_usd": 500, "principal_address": "<your Solana address>",
       "worker_address": "<worker Solana address>",
       "condition": "Deliver the Q3 summary report", "expires_hours": 72}'

Submit proof, then release# Worker: submit proof (the escrow stays funded)
curl -X POST https://escrowpulse.waltsoft.net/v1/escrow/esc_a1b2c3d4e5f6a7b8/release \
  -H "X-PAYMENT: <x402 payment from the worker>" -H "Content-Type: application/json" \
  -d '{"proof_type": "signed_hash", "proof_data": "sha256:9f86d081884c7d65..."}'

# Principal: approve, and the escrowed USDC goes to the worker
curl -X POST https://escrowpulse.waltsoft.net/v1/escrow/esc_a1b2c3d4e5f6a7b8/release \
  -H "X-PAYMENT: <x402 payment from the principal>"

Release and dispute act for one party, so the caller proves which one it is: pay the call with x402 from the principal's or worker's Solana wallet, or add an X-Escrow-Signature header with that wallet's signature of EscrowPulse:release:<escrow_id> (works with Base payments and API keys). Anyone else is refused before any payment is taken.

Full schema: openapi.json  •  integration guide: agents.md

Try it

Pricing

Agents pay per call with x402. People buy a one-time escrow pack with a card and call the same API with a key.

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x402 per call: $0.02 to create, release or dispute, $0.005 to read. AWS Marketplace: $0.01 per unit; create, release and dispute use 2 units, reads 1. The 0.5% fee is paid with the deposit and refunded with it if the escrow expires unreleased. If the worker has no USDC account yet, create adds a separate account setup fee (its rent and transaction fee in SOL, plus 25%, minimum $0.10) to the deposit.  Recover an API key

Use cases