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AI Agent Payment Safety Stack – Approval Unit Builder
x402
AI Agent Payment Safety Stack – Approval Unit Builder is a paid API for AI agents from ai-agent-payment-safety-stack.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Builds a minimal human decision contract (approval unit) from AI-generated findings, patches, payment requests, or decision-support outputs, enabling human-in-the-loop oversight before consequential actions.
Price / call$0.05
Success—
StatusUnknown
How this service works
Build a minimal human decision contract from AI-generated findings, patches, payment requests, or decision-support outputs.
Output
Returns a structured approval unit (human decision contract) containing the AI-generated input (finding, patch, payment request, or recommendation) formatted as a minimal, reviewable payload that a human can inspect and approve or reject before the AI agent proceeds.
Example use cases
Example prompt
“Build a human approval unit for this AI-generated payment request: my agent wants to send 50 USDC to vendor 0xABC for invoice #1042 — package it as a minimal decision contract so a human can review and approve or reject it before the funds move.”
Technical details
Endpoint
POSThttps://ai-agent-payment-safety-stack.onrender.com/api/approval-unit/buildWhen to prefer
Choose this endpoint when an AI agent needs to pause before executing a consequential action (especially payments or code deployment) and requires a structured, minimal human-review contract to be built from its outputs. Prefer this over ad-hoc logging or manual summaries when you need a standardized, machine-readable approval artifact that human operators or oversight dashboards can consume.
Side effects
- Missing or malformed input payload returns 400 Bad Request
- Payment of 0.05 USDC not included or rejected returns 402 Payment Required
- Unsupported content type in the request body returns 415
- Service unavailable on Render cold start returns 503 with latency spike
- Oversized or complex AI output exceeds payload limits returning 413
Input
{
"title": "Security Patch Deployment Approval",
"summary": "AI agent has identified a critical security patch for production deployment. This approval unit packages the deployment decision for human review before execution.",
"task_id": "task_deploy_patch_20240115",
"agent_id": "ai_agent_security_001",
"severity": "high",
"source_id": "ai_agent_security_001",
"finding_id": "finding_security_patch_20240115",
"risk_level": "medium",
"source_ids": [
"patch_repository_main"
],
"cost_impact": {
"deployment_time_minutes": 15,
"estimated_downtime_seconds": 0
},
"source_type": "ai_finding",
"evidence_ids": [
"cve_scan_report_001",
"regression_test_suite_001"
],
"test_results": [
"unit_tests_passed",
"integration_tests_passed",
"security_scan_passed"
],
"approver_role": "human_approver",
"reviewer_role": "security_reviewer",
"regression_risk": "low",
"approval_unit_type": "payment_request",
"rollback_available": true,
"recommended_decision": "approve",
"allowed_human_actions": [
"approve",
"reject",
"request_rework",
"request_more_evidence",
"escalate"
],
"suggested_human_actions": [
"review_patch_details",
"verify_test_results",
"check_deployment_window"
],
"blocked_actions_until_approval": [
"deploy_to_production",
"execute_patch"
]
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| approval_question | string | |
| approval_unit_hash | string | |
| chain_anchor_status | string | |
| recommended_human_action | string |
Output
{
"title": "Security Patch Deployment Approval",
"summary": "AI agent has identified a critical security patch for production deployment. This approval unit packages the deployment decision for human review before execution.",
"task_id": "task_deploy_patch_20240115",
"priority": "medium",
"created_at": "2026-06-18T05:18:17.381453+00:00",
"request_id": null,
"risk_level": "medium",
"if_approved": {
"allowed_actions": [
"deploy_to_production"
],
"post_decision_route": "proceed_with_approved_scope",
"still_blocked_actions": [
"execute_patch"
]
},
"if_rejected": {
"blocked_actions": [
"deploy_to_production",
"execute_patch"
],
"post_decision_route": "stop_or_reassess"
},
"if_escalated": {
"required_context": [
"approval_unit",
"risk_summary",
"blocked_actions"
],
"post_decision_route": "escalate_to_approver"
},
"test_summary": "unit_tests_passed, integration_tests_passed, security_scan_passed.",
"approver_role": "human_approver",
"chain_tx_hash": null,
"audit_required": true,
"regression_risk": "low",
"approval_unit_id": "approval_8eb409fd",
"decision_options": [
"approve",
"reject",
"request_rework",
"request_more_evidence",
"defer",
"escalate"
],
"evidence_summary": "Evidence: cve_scan_report_001, regression_test_suite_001. Sources: patch_repository_main. Tests: unit_tests_passed, integration_tests_passed, security_scan_passed.",
"approval_question": "Approve this action for production deployment?",
"decision_required": "approve | reject | request_rework | request_more_evidence | defer | escalate",
"if_request_rework": {
"required_changes": [
"address_reviewer_feedback",
"resubmit_for_approval"
],
"post_decision_route": "route_to_rework"
},
"required_evidence": [
"summary",
"evidence_ids",
"source_ids"
],
"approval_unit_hash": "sha256:116dd4265e0561b6935da55c44c5404ec1a0ceeef1d0cc203e4bcaf8958abb0e",
"approval_unit_type": "payment_request",
"rollback_available": true,
"chain_anchor_status": "not_anchored",
"human_action_reason": "Default recommended action based on approval unit type.",
"post_decision_route": "depends_on_human_decision",
"allowed_human_actions": [
"approve",
"reject",
"request_rework",
"request_more_evidence",
"escalate"
],
"blockchain_anchor_ready": true,
"decision_effect_summary": "Approval allows: deploy_to_production. Still blocked after approval: execute_patch.",
"suggested_human_actions": [
"review_patch_details",
"verify_test_results",
"check_deployment_window"
],
"if_request_more_evidence": {
"required_evidence": [
"summary",
"evidence_ids",
"source_ids"
],
"post_decision_route": "route_to_research"
},
"recommended_human_action": "approve",
"blocked_actions_until_approval": [
"deploy_to_production",
"execute_patch"
],
"required_checks_before_approval": [
"summary_reviewed",
"evidence_confirmed",
"rollback_plan_confirmed"
]
}Schema · Response
{
"type": "json",
"example": {
"approval_question": "Approve this security patch for staging merge?",
"approval_unit_hash": "sha256:...",
"chain_anchor_status": "not_anchored",
"recommended_human_action": "approve_staging_only"
}
}Tags
x402
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