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x402 Agent Spend Recurrence Guard
x402
x402 Agent Spend Recurrence Guard is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.012/call, status down (last checked 2026-09-04).
Evaluates an x402 payment quote or paid-tool call against spend caps, route allowlists, payTo/network expectations, spend history, and receipt evidence to return an allow/manual_review/deny decision.
Price / call$0.012
Success—
StatusDown
Output
Returns a structured decision object with an allow/manual_review/deny verdict, a spend ledger entry recording this call, MCP and Flowise guard configuration blocks, a runtime code snippet for enforcement, and a repeat-payment audit schema for compliance review.
Example use cases
Example prompt
“Before you approve this x402 tool call to https://api.example.com/data costing $0.008 USDC on Base, check it against my daily budget of $2.00 USDC, max $0.012 per call, and make sure the payTo address is 0xABC...123 — I've spent $0.45 today and had no recent failures, and I have receipt ID rec_9f2a for the last payment.”
Technical details
Endpoint
POSThttps://gpt55.558686.xyz/v1/tools/x402-agent-spend-recurrence-guardWhen to prefer
Use this endpoint when an AI agent needs a deterministic, policy-based pre-authorization check before executing any x402 USDC micropayment — especially when enforcing spend caps, validating payTo/network integrity, maintaining spend ledgers, or integrating with MCP or Flowise orchestration frameworks. Prefer this over ad-hoc checks when you need structured audit trails and guard configs in a single call.
Side effects
- Amount exceeds maxUsdcPerCall — returns deny decision
- Daily budget exhausted based on spentTodayUsdc — returns deny decision
- Service URL not in allowlist — returns deny decision
- payTo address mismatch with expectedPayTo — returns deny or manual_review
- Network mismatch with expectedNetwork — returns deny decision
- Receipt required but receiptPresent is false — returns manual_review
- Consecutive failure threshold exceeded — returns manual_review or deny
- Input payload exceeds 700,000 character limit — request rejected
- Missing required fields — validation error returned
Tags
x402
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