# Agent Release Gate – Claude Text Generation

> 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.

## Facts

- Endpoint: POST https://agentcash-claude-seller-production.up.railway.app/api/generate?utm_source=zero.xyz
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-release-gate-claude-text-generation-453df8b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AUlXfJF4_HHn2A4z37UOe

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-release-gate-claude-text-generation-453df8b2 -d '<json body>'
```

Example prompt: Check whether my agent's output is ready to ship and give me repair instructions if not — here's the output: 'Our Q3 revenue grew 12% YoY driven by enterprise expansion.' Use up to 256 tokens for the response.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "prompt": {
   "type": "string",
   "maxLength": 8000,
   "minLength": 1
  },
  "system": {
   "type": "string",
   "maxLength": 2000
  },
  "maxTokens": {
   "type": "integer",
   "default": 128,
   "maximum": 512,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-release-gate-claude-text-generation-453df8b2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentcash-claude-seller-production.up.railway.app](https://www.zero.xyz/host/agentcash-claude-seller-production.up.railway.app/llms.txt)