# KiteEndpoints.ai - xAI API

> KiteEndpoints.ai - xAI API is a paid API for AI agents from kite-endpoints.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Proxies requests to xAI (Grok) language model API via a pay-per-request USDC gateway

## Facts

- Endpoint: POST https://kite-endpoints.vercel.app/api/xai
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-xai-api-ab310744
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_10rZ9VNDxgor__TTg3nBF

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 kiteendpoints-ai-xai-api-ab310744 -d '<json body>'
```

Example prompt: Use the xAI Grok model to answer this question: what are the key differences between nuclear fission and fusion, and which is closer to commercial viability?

## When to prefer this

Choose this endpoint when you need pay-per-request access to xAI's Grok model without managing an xAI subscription, and your payment infrastructure uses USDC on Base chain. Useful for agents that occasionally need Grok's specific reasoning style or real-time knowledge, without committing to a monthly plan.

## Known failure modes

- Insufficient USDC balance causes payment failure with 402 status
- Malformed prompt or missing required fields returns validation error
- xAI upstream API downtime causes 503 or timeout response
- Rate limiting by upstream xAI service returns throttle error
- Ambiguous or very long prompts may return truncated or low-quality responses

## How this service works

400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.

## Output

Returns an AI-generated response from the xAI (Grok) language model based on the submitted prompt, wrapped in a result object containing the model's output data.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kiteendpoints-ai-xai-api-ab310744/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-endpoints.vercel.app](https://www.zero.xyz/host/kite-endpoints.vercel.app/llms.txt)