# KiteEndpoints.ai - Chain Check

> KiteEndpoints.ai - Chain Check is a paid API for AI agents from kite-hub-v2.vercel.app, paid per call via x402, $0.14/call, status unknown (last checked 2026-09-14).

Checks blockchain/chain data for a given input and returns a result object with chain-related information

## Facts

- Endpoint: POST https://kite-hub-v2.vercel.app/api/chaincheck
- Price: $0.14/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-chain-check-f84932b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lDs7Uu4HUNZoKhmzDT9FC

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-chain-check-f84932b4 -d '<json body>'
```

Example prompt: Can you run a chain check on this blockchain data and tell me what it returns?

## When to prefer this

Use this endpoint when you need to perform a quick, pay-per-use chain check on blockchain data without setting up a dedicated blockchain node or signing up for a long-term data provider subscription. Suitable for agents that occasionally need on-chain verification and want to pay per call in USDC on Base chain.

## Known failure modes

- Malformed or missing result object in request body returns an error
- Invalid chain data structure causes a bad request response
- Endpoint may return generic example data if the input is not a real chain query
- Payment failure (insufficient USDC on Base chain) results in 402 Payment Required
- Rate limiting or server errors may return 5xx 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 a JSON object with a 'result' field containing chain-related data such as status, chain identifiers, or on-chain state for the submitted input.

## 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-chain-check-f84932b4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v2.vercel.app](https://www.zero.xyz/host/kite-hub-v2.vercel.app/llms.txt)