# NexusAPI Instagram Caption Generator

> NexusAPI Instagram Caption Generator is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.093609/call, status unknown (last checked 2026-09-14).

Generates AI-written captions for Instagram posts based on a text query or topic input

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/ai/caption/instagram
- Price: $0.093609/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-instagram-caption-generator-5c618c60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7NwzJACN-47bWsqShHyOw

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 nexusapi-instagram-caption-generator-5c618c60 -d '<json body>'
```

Example prompt: Write me an engaging Instagram caption for a sunset beach photo from my vacation in Bali — something poetic and wanderlust-themed with relevant hashtags.

## When to prefer this

Use this endpoint when you need AI-generated Instagram-specific captions quickly without managing API keys, paying per call in USDC on Base via the x402 protocol. Prefer this over general text generators when you want copy optimized for Instagram tone and hashtag conventions.

## Known failure modes

- Empty or missing query returns a generic or error response
- Query too vague may produce off-topic captions
- Payment failure (402) if USDC not provided correctly
- Rate limiting or server errors from the Vercel host

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns an AI-generated Instagram caption tailored to the provided topic or description, likely including suggested hashtags and engaging copy suitable for posting on Instagram.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-instagram-caption-generator-5c618c60/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-peach-nine.vercel.app](https://www.zero.xyz/host/nexus-api-peach-nine.vercel.app/llms.txt)