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Agent Release Gate – Claude Text Generation
x402
Agent Release Gate – Claude Text Generation is a paid API for AI agents from agentcash-claude-seller-production.up.railway.app, paid per call via x402, $0.012/call, status unknown (last checked 2026-10-31).
Sends a prompt (and optional system message) to Claude and returns a generated text response, with optional use as a release-gate quality check for AI agent outputs.
Price / call$0.012
Success—
StatusUnknown
How this service works
Agent Release Gate: an independent quality check that tells an AI agent whether its output is ready to ship, with repair instructions when it is not. Also offers low-cost utilities for quick answers, summaries, task routing, structured JSON extraction, and Claude text generation. Pay per call with USDC over x402 on Base or MPP on Tempo; no API key or signup.
Output
A Claude-generated text response up to 512 tokens, which may include a quality verdict (PASS/FAIL) with repair instructions, a plain-text answer or summary, extracted structured JSON, or a task routing recommendation, depending on how the prompt is framed.
Example use cases
Agent output quality gate
“Act as an independent reviewer: is this agent-generated product description ready to publish, or does it need fixes? Output 'PASS' or 'FAIL' with specific repair instructions if it fails. Here's the text: 'Buy our new Widget Pro — it's really good and does stuff fast.'”
Structured JSON extraction from free text
“Extract the key fields — name, date, amount, and currency — from this invoice text and return them as a JSON object: 'Invoice #4421 from Acme Corp, dated March 15 2025, total due $1,250 USD.'”
Quick Claude summary without API key
“Give me a one-paragraph summary of this article in up to 200 tokens: 'Researchers at MIT have developed a new battery chemistry that could double the energy density of lithium-ion cells while cutting costs by 30%...'”
Technical details
Endpoint
POSThttps://agentcash-claude-seller-production.up.railway.app/api/generate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call Claude text generation or quality-gate check without signing up for an Anthropic API key. It is especially well-suited for AI agents that need an independent second opinion on their own outputs before shipping, or for quick one-off tasks like summarization, JSON extraction, or task routing where paying per call with USDC over x402 is preferable to managing API credentials.
Side effects
- Prompt exceeds 8000 character limit — request rejected
- maxTokens value outside 1–512 range — validation error
- Payment not included or insufficient USDC/MPP — 402 Payment Required response
- Malformed JSON body — 400 Bad Request
- Claude upstream timeout or rate limit — 503 or 504 error
- System prompt exceeds 2000 character limit — request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| prompt | string | |
| system | string | |
| maxTokens | integer |
Tags
x402
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Zero review prompt (fires after every successful call)
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