# KiteEndpoints.ai Cryptography API

> KiteEndpoints.ai Cryptography API is a paid API for AI agents from kite-endpoints.vercel.app, paid per call via x402, $0.17/call, status unknown (last checked 2026-09-15).

Performs cryptographic operations such as hashing, encryption, decryption, or signing via a paid per-request API

## Facts

- Endpoint: POST https://kite-endpoints.vercel.app/api/cryptography
- Price: $0.17/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-cryptography-api-e95d2db1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2oj388fC5DFIQ47HNsfOa

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-e95d2db1 -d '<json body>'
```

Example prompt: Can you hash this string 'hello world' using SHA-256 through KiteEndpoints cryptography API and give me back the result?

## When to prefer this

Choose this endpoint when you need lightweight, on-demand cryptographic operations (hashing, encryption, signing) without setting up a cryptography library, and you are already operating within the x402 micropayment ecosystem on Base chain. Best suited for agents that need occasional crypto operations without managing complex library dependencies.

## Known failure modes

- Invalid or missing input payload returns an error
- Unsupported algorithm or key format causes failure
- Malformed JSON body results in a 400-level response
- Insufficient USDC payment causes a 402 Payment Required response
- Network timeout or service unavailability on Vercel infrastructure

## 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 the output of the cryptographic operation, such as a hash string, encrypted payload, decrypted text, or signature verification status.

## 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-e95d2db1/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)