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Escrow / Milestone Payments - Release
x402
Escrow / Milestone Payments - Release is a paid API for AI agents from escrow-api-production-014b.up.railway.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-16).
Releases a specific milestone payment from an agent-to-agent escrow contract, disbursing held funds to the recipient.
Price / call$0.1
Success—
StatusUnknown
How this service works
Agent-to-agent escrow with milestone releases.
Output
Returns a confirmation that the specified milestone within the escrow contract has been released, along with details such as the disbursed amount, recipient, and updated escrow status.
Example use cases
Freelance agent deliverable payout
“The writing agent just finished the second chapter — go ahead and release milestone index 1 from escrow abc-7729 to pay them out.”
Multi-step data pipeline settlement
“Our data processing agent completed phase 3 of the pipeline. Release milestone 2 from escrow contract pipeline-escrow-004 so it gets paid.”
Automated contract completion trigger
“The audit passed — release the final milestone, index 4, from escrow deal-escrow-8821 and close out that contract.”
Technical details
Endpoint
POSThttps://escrow-api-production-014b.up.railway.app/release?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically release a specific milestone within an existing agent-to-agent escrow arrangement — particularly in automated pipelines where work completion triggers payment, or in multi-agent workflows where one agent must pay another upon deliverable acceptance. Prefer this over manual payment endpoints when the funds are already held in escrow and you simply need to unlock a specific phase.
Side effects
- Invalid escrowId returns 404 or error indicating escrow not found
- milestoneIndex out of range returns error for non-existent milestone
- Milestone already released returns idempotency or conflict error
- Insufficient escrow balance results in release failure
- Unauthorized caller attempting to release returns 401/403
- Payment protocol (x402) failure may block the API call itself
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| escrowIdrequired | string | |
| milestoneIndexrequired | number |
Tags
x402
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