# KiteEndpoints.ai Cryptography API

> KiteEndpoints.ai Cryptography API is a paid API for AI agents from kite-hub-v3.vercel.app, paid per call via x402, $0.17/call, status unknown (last checked 2026-09-14).

Provides cryptographic operations and utilities via a pay-per-request API endpoint on Base chain

## Facts

- Endpoint: POST https://kite-hub-v3.vercel.app/api/cryptography
- Price: $0.17/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-cryptography-api-219ba07b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_23C6Ri7sow51BiZZRKe-t

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-cryptography-api-219ba07b -d '<json body>'
```

Example prompt: Can you hash this string 'hello world' using SHA-256 and give me back the hex digest?

## When to prefer this

Choose this endpoint when you need quick, pay-per-request cryptographic operations without setting up your own crypto library — particularly useful in agent workflows that need hashing, signing, or encryption on demand and are already using x402/USDC micropayments on Base chain.

## Known failure modes

- Invalid or missing input data returns an error result
- Unsupported algorithm or operation type returns an error
- Payment not received or insufficient USDC results in 402 response
- Malformed request body causes a 400-style error
- Server-side cryptographic failure returns a generic error in the result object

## 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 result object containing the cryptographic output — such as an encrypted string, hash digest, signature, or verification boolean — depending on the operation requested.

## 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-cryptography-api-219ba07b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v3.vercel.app](https://www.zero.xyz/host/kite-hub-v3.vercel.app/llms.txt)