# Agent Paid Resource Control – Pre-Payment Review > Agent Paid Resource Control – Pre-Payment Review is a paid API for AI agents from agent-paid-resource-control.onrender.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14). Reviews an AI agent's intent to pay for a web resource, API, or data asset, returning a structured decision with budget checks, resource binding validation, duplicate payment risk assessment, and evidence receipt guidance before any payment is authorized. ## Facts - Endpoint: POST https://agent-paid-resource-control.onrender.com/api/paid-resource/review - Price: $0.03/call - Payment: x402 - Status: unknown - Last checked: 2026-09-14 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/agent-paid-resource-control-pre-payment-review-fd5fa73b - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E9H82fg5TYG5En8mHT855 Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability agent-paid-resource-control-pre-payment-review-fd5fa73b -d '' ``` Example prompt: Before paying $0.03 USDC via x402 for that premium report at https://example.com/premium/report, run a pre-payment review for agent agent_demo_001 to check budget status, resource binding, and duplicate payment risk — I want the review_id and recommended next step before we proceed. ## When to prefer this Use this endpoint when an AI agent is about to spend money on a paid web resource, API call, or data asset via x402 and you need a structured pre-authorization review — covering duplicate payment detection, budget validation, resource binding confirmation, and evidence receipt planning — before the payment is executed. Prefer this over no-op checks or manual review when operating autonomous agents that must maintain auditability of their financial actions. ## Known failure modes - Missing or invalid resource_url results in a rejected review - Unknown agent_id may produce budget_status as not_checked rather than a real budget figure - Unrecognized payment_protocol (non-x402) may cause incomplete resource_binding assessment - Malformed expected_result field causes fulfillment_check to be inconclusive - Service unavailable on Render cold-start, resulting in timeout or 503 ## How this service works Payment is required to receive a pre-action decision for this external resource: allow, review_required, or deny. Pay to receive an External Resource Review with decision, risk_level, payment_allowed, required_checks, and reason before the agent acts. ## Output Returns a review_id, a decision (e.g. review_required), and a detailed resource_control object covering budget_status, metadata_privacy, resource_binding, fulfillment_check, duplicate_payment_risk, reconciliation_required, and evidence_receipt_required. Also includes before_payment and after_payment agent_guidance checklists, evidence_fields to record, and a recommended_next_step string. The response is marked experimental. ## Request schema (JSON Schema) ```json { "type": "object", "properties": { "metadata": { "type": "string" } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "amount": "0.03", "status": "created", "agent_id": "agent_demo_001", "currency": "USDC", "decision": "review_required", "review_id": "paid_resource_review_abc123", "created_at": "2026-06-18T00:00:00Z", "review_type": "agent_paid_resource_review", "experimental": true, "resource_url": "https://example.com/premium/report", "resource_type": "web_content", "agent_guidance": { "after_payment": [ "Record payment_tx or settlement reference.", "Verify that the expected_result was fulfilled.", "Create a paid access evidence receipt." ], "before_payment": [ "Confirm that the payment is bound to the intended resource_url.", "Check whether this resource was already paid for in the current task window.", "Confirm that the expected_result is specific enough to verify after payment." ] }, "evidence_fields": [ "agent_id", "resource_url", "resource_type", "amount", "currency", "payment_protocol", "payment_intent_id", "expected_result", "actual_result", "payment_tx", "memo_id", "evidence_id" ], "required_checks": [ "reputation_signal_audit", "budget_policy_check", "memory_use_permission_check", "payment_evidence_required" ], "payment_protocol": "x402", "resource_control": { "budget_status": "not_checked", "metadata_privacy": "passed", "resource_binding": "check_required", "fulfillment_check": "required", "duplicate_payment_risk": "unknown", "reconciliation_required": true, "evidence_receipt_required": true }, "recommended_next_step": "proceed_only_after_budget_and_resource_binding_check" }, "examples": { "example_d_deny": { "expected_output": { "reason": "The resource requires external tool installation and may affect customer data without sufficient provenance.", "decision": "deny", "risk_level": "high", "payment_allowed": false, "required_checks": [ "tool_install_approval_gate", "reputation_signal_audit", "customer_data_boundary_check" ] } }, "example_a_allow": { "expected_output": { "reason": "The resource is low-risk, within budget, and no sensitive memory or customer data is involved.", "decision": "allow", "risk_level": "low", "payment_allowed": true, "required_checks": [ "payment_evidence_required" ] } }, "example_b_mcp_tool": { "input": { "purpose": "Use an external MCP tool before processing … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-paid-resource-control-pre-payment-review-fd5fa73b/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from agent-paid-resource-control.onrender.com](https://www.zero.xyz/host/agent-paid-resource-control.onrender.com/llms.txt)