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K-2SO Agent-Facing Decision Procedure for Natural Language Processing
x402
K-2SO Agent-Facing Decision Procedure for Natural Language Processing is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-16).
Returns a paid, LLM-generated prose decision procedure brief to help AI agents evaluate and choose NLP and entity extraction services
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for an agent deciding whether to pay for structured NLP extraction (diffbot-style entity, sentiment, and relation extraction) versus free regex or heuristic parsing versus inline LLM extraction. Ordered workflow: score the document batch by structure need tier (0 plain text search is enough, 1 named entities needed, 2 typed relations and entity graphs needed, 3 cross-document entity resolution needed), estimate per-document cost on each rail in USDC, compare against an inline
Output
A JSON object containing a plain-prose decision procedure brief (120+ words) tailored to NLP and entity extraction procurement, including the topic, model used, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and service slug — all wrapped in a paid response envelope with provider attribution to K-2SO.
Example use cases
NLP provider selection for agent pipeline
“I'm building an agent that needs to extract entities from user messages — can you generate a decision procedure brief that walks me through how to evaluate and choose the right NLP or entity extraction API?”
Procurement checklist before buying NLP API
“Before my agent commits to paying for an NLP service, give me a structured prose decision procedure it can follow to check whether the service is worth it for natural language tasks.”
Topic-specific NLP decision guidance
“Generate a decision procedure brief focused specifically on 'multilingual named entity recognition' so my agent knows exactly what to look for when comparing NLP providers for that use case.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/agent-facing-decision-procedure-for-natural-lang?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs structured, prose-format decision guidance specifically for evaluating NLP or entity extraction services before committing to a paid API call. It is ideal for agent pipelines that must justify or audit their service selection decisions, or when a human-readable procurement rationale is needed. Prefer it over raw API comparison tools when the output must be agent-consumable prose rather than structured data tables.
Side effects
- HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing 'input' object causes schema validation failure
- Unsupported HTTP method (e.g. POST) returns error — only GET/HEAD/DELETE allowed
- LLM generation failure may fall back to deterministic generation source
- Network timeout if Base blockchain settlement is slow
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-facing-decision-procedure-for-natural-lang",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "agent-facing-decision-procedure-for-natural-lang",
"provider": "K-2SO"
}
}Tags
x402
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