# Growaify Prompts Clinic — AI Prompt Optimization Service

> Growaify Prompts Clinic — AI Prompt Optimization Service is a paid API for AI agents from growaify.com, paid per call via x402, $1.99/call, status unknown (last checked 2026-10-11).

Analyzes and improves AI prompts through a paid, agent-native commerce endpoint, returning a clinically refined prompt for $1.99 USDC per call.

## Facts

- Endpoint: POST https://growaify.com/x402/item/prompts-clinic?utm_source=zero.xyz
- Price: $1.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/growaify-prompts-clinic-ai-prompt-optimization-service-5b8e9c97
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WVgIL739aKASFv_iXZ2su

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 growaify-prompts-clinic-ai-prompt-optimization-service-5b8e9c97 -d '<json body>'
```

Example prompt: I have a prompt I've been using with GPT-4 that keeps giving me vague answers — can you send it through the Prompts Clinic to get it professionally rewritten and optimized for $1.99?

## When to prefer this

Choose this endpoint when an AI agent or developer needs a fast, paid, single-call prompt optimization with cryptographically verified output and idempotent ordering — ideal for agentic workflows that require trustworthy, auditable prompt refinement rather than a free or manual review process.

## Known failure modes

- Payment failure or insufficient USDC balance — returns 402 Payment Required
- Malformed or empty prompt input — returns 400 Bad Request
- Idempotency key collision with different payload — returns 409 Conflict
- Service temporarily unavailable — returns 503
- Cryptographic verification failure on deliverable — deliverable cannot be trusted

## How this service works

Growaify is the agent-native commerce layer: discover capabilities, get binding quotes, place idempotent orders, pay via verified rails, and receive cryptographically verified deliverables. MCP server, Agent Card, and full E2E loop.

## Output

A cryptographically verified, refined version of the submitted prompt, returned as a structured deliverable after payment is processed via the x402 protocol. The improved prompt is ready to drop directly into an AI system.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/growaify-prompts-clinic-ai-prompt-optimization-service-5b8e9c97/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from growaify.com](https://www.zero.xyz/host/growaify.com/llms.txt)