# NexusAPI AI Chat Endpoint

> NexusAPI AI Chat Endpoint is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.123978/call, status unknown (last checked 2026-10-22).

Sends a natural language query to an AI chat model and returns a generated text response

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/ai/chat?utm_source=zero.xyz
- Price: $0.123978/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-ai-chat-endpoint-72bb9ba3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SveyAhE9kG_Em-PTbewVZ

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-ai-chat-endpoint-72bb9ba3 -d '<json body>'
```

Example prompt: Ask the NexusAPI AI chat endpoint this question and give me the response: 'What are the top three use cases for blockchain technology in supply chain management?'

## When to prefer this

Choose this endpoint when you need a pay-per-call AI chat capability without managing API keys, and are comfortable paying ~$0.12 USDC per call on Base. Useful for infrequent or bursty AI chat needs where a subscription model is overkill.

## Known failure modes

- Payment not received or insufficient USDC — returns 402 Payment Required
- Missing or empty query field — returns 400 Bad Request
- Model unavailable or overloaded — returns 500 Internal Server Error
- Malformed JSON body — returns 400 Bad Request
- Query exceeds token/length limits — returns 400 or 413 error

## 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 API response object containing the AI-generated text answer or chat reply corresponding to the submitted query string.

## 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-ai-chat-endpoint-72bb9ba3/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)