Post-action verification checklists for autonomous AI agents after high-risk operations.
What it does
AgentUtil Think /v1/review is a post-action verification endpoint for autonomous AI agents. After an agent completes a high-risk operation (e.g., database deletion, deployment, financial transaction), it sends a description of what was done and receives a structured verification checklist covering rollback readiness, stakeholder notification, monitoring, and compliance. The service uses pure data lookup with no LLM in the path, claiming sub-50ms response times.
The endpoint accepts a POST with required fields `action_completed` and `description`, plus an optional `domain` parameter (database, communications, financial, deployment, etc.). It returns a risk level assessment, a verification checklist with categorized checks each carrying a severity rating and rationale, and a summary. This complements the sibling /v1/check (pre-flight) and /v1/expand (implied requirements) endpoints in the same service.
Pricing is $0.002 per request via the x402 protocol (USDC on Base), with a free tier of 10 queries per day per IP address requiring no signup. The OpenAPI spec is fully documented at /openapi.json, and agent discovery metadata is available via standard .well-known paths.
Capabilities
Use cases
- —Verify rollback readiness after an agent deletes database records
- —Confirm stakeholder notification requirements after sending bulk communications
- —Check compliance obligations after a financial transaction executed by an agent
- —Validate monitoring setup after an automated deployment
- —Audit whether proper steps were followed after user management changes
Fit
Best for
- —Autonomous AI agents performing high-risk operations that need post-action verification
- —Agent frameworks requiring structured safety checks after destructive or irreversible actions
- —Workflows where compliance and rollback readiness must be confirmed programmatically
Not for
- —Pre-action safety checks (use /v1/check instead)
- —General-purpose LLM inference or text generation
- —Real-time blocking of unsafe actions (this is advisory, not enforcement)
Quick start
curl -X POST https://think.agentutil.net/v1/review \
-H "Content-Type: application/json" \
-d '{
"action_completed": "delete_records",
"description": "Deleted all inactive users from production database",
"domain": "database"
}'Example
Request
{
"domain": "database",
"description": "Deleted all inactive users from production database",
"action_completed": "delete_records"
}Response
{
"summary": "High-risk deletion completed. Verify backup exists, notify stakeholders, and monitor dependent services.",
"risk_level": "high",
"action_type": "delete_records",
"verification_checklist": [
{
"why": "Deleted records cannot be recovered without a backup",
"check": "Confirm backup was created before deletion",
"category": "rollback",
"severity": "critical"
},
{
"why": "Stakeholders need to know about data changes for downstream processes",
"check": "Notify data team of completed deletion",
"category": "notification",
"severity": "high"
},
{
"why": "Cascading failures may occur if other services reference deleted records",
"check": "Verify no dependent services are failing",
"category": "monitoring",
"severity": "high"
}
]
}Endpoint
Quality
Full OpenAPI schema with request/response definitions is available and the landing page documents pricing and behavior clearly. However, the x402 probe returned 400 rather than 402, so liveness via the payment challenge could not be confirmed. The example response is inferred from the schema since no actual 200 response was captured.
Warnings
- —x402 probe returned HTTP 400 on POST rather than the expected 402 challenge — endpoint may require a valid request body to trigger the payment flow, or payment gating may behave differently than standard x402
- —No actual response body was captured; the example response is inferred from the OpenAPI schema
- —No dedicated docs page exists (/docs, /api, /pricing all return 404)
Citations
- —POST /v1/review costs $0.002 per request via x402 (USDC on Base)https://think.agentutil.net
- —Free tier: 10 queries/day per IP, no signup requiredhttps://think.agentutil.net
- —No LLM in the path — pure data lookup, <50mshttps://think.agentutil.net
- —OpenAPI schema documents /v1/review with required fields action_completed and descriptionhttps://think.agentutil.net/openapi.json