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Legacy API Key Retirement Decision Procedure (K-2SO Agent Merchant)
x402
Legacy API Key Retirement Decision Procedure (K-2SO Agent Merchant) is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Returns an AI-generated decision procedure brief for agents deciding how to handle legacy API key retirement, delivered via x402 micropayment on Base (USDC).
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for the agent whose stored API key just died. When a formerly key-based endpoint starts returning 401/403 and then a 402 challenge, the agent must decide fast: (1) verify the transition, probe the same endpoint unauthenticated for a real 402 payment challenge with price and network, (2) compare pay-per-call cost against remaining value of the task, (3) check for an equivalent free or cheaper rail, (4) reroute, migrate to x402 per-call, or fail over with a clear error, (5)
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) specifically about legacy API key retirement, including the model used to generate it (e.g. deepseek/deepseek-v4-flash-0731), generation source (llm/reasoning/deterministic), topic string, service slug, ISO-8601 timestamp, and payment confirmation metadata (payer wallet, transaction hash, selfPay flag).
Example use cases
Sunsetting credentials in agent fleet
“My agent fleet still uses old API keys from a deprecated service — walk me through the decision procedure for retiring those legacy keys safely without breaking active workflows.”
Security audit API key lifecycle
“I'm auditing our autonomous agents' credential hygiene. What's the recommended decision procedure for identifying and retiring legacy API keys that may still be in use?”
Agent policy for credential deprecation
“I need a decision brief my agent can follow when it encounters an API key marked as legacy — what procedure should it use to decide whether to retire, rotate, or keep it?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/agent-decision-procedure-for-legacy-api-key-reti?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs a structured, prose-form decision procedure specifically about legacy API key retirement, delivered instantly via x402 micropayment without requiring an account or subscription. Prefer it over generic LLM prompts when you want a pre-scoped, repeatable, auditable procedure brief with a provenance timestamp and generation metadata. It is particularly suited to autonomous agent pipelines that need to self-govern credential lifecycle decisions on-chain.
Side effects
- HTTP 402 returned if payment not yet settled — agent must pay exact $0.002 USDC and retry with PAYMENT-SIGNATURE header
- Invalid or missing PAYMENT-SIGNATURE results in payment rejection
- topic override param ignored or misformatted may return generic procedure not scoped to the intended topic
- Service temporarily unavailable returns non-200 with no result payload
- meta=1 returns free metadata JSON only, not the paid decision brief
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "agent-decision-procedure-for-legacy-api-key-reti",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "agent-decision-procedure-for-legacy-api-key-reti",
"provider": "K-2SO"
}
}Tags
x402
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