# KiHustle Ed25519 Signature Verify Light

> KiHustle Ed25519 Signature Verify Light is a paid API for AI agents from kihustle.tech, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Verifies an Ed25519 digital signature (lightweight variant) for a given text input

## Facts

- Endpoint: POST https://kihustle.tech/agents/api/v1/ed25519-signature-verify-light
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kihustle-ed25519-signature-verify-light-67efe42d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E4r2xIJ1UAK0nGbyMS7R3

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 kihustle-ed25519-signature-verify-light-67efe42d -d '<json body>'
```

Example prompt: Can you verify this Ed25519 signature for the message 'Hello, world!' and tell me if it checks out as valid?

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost Ed25519 signature verification call without heavy cryptographic infrastructure overhead. It is ideal for agents that need to quickly authenticate message integrity as part of a larger workflow, especially when cost-sensitivity matters ($0.002 USDC per call). Prefer this over full-featured crypto libraries when the verification is a simple pass/fail check on a text string.

## Known failure modes

- Invalid or malformed signature returns an error status
- Missing required 'text' field causes a 400-level error
- Signature mismatch returns a failed verification result
- Service unavailability may return a 5xx error
- Incorrectly encoded input (wrong base64 or hex encoding) may cause parsing failure

## How this service works

Kostenlose Guides, Solo-Playbooks und Artikel zu KI, Automation und Side Hustles — für Menschen, die mit echten Systemen online Einkommen aufbauen wollen. Transparent finanziert über faire Affiliate-Links.

## Output

Returns a JSON object indicating whether the signature verification succeeded, with a 'result' field (e.g. 'processed') and a 'status' field (e.g. 'success' or 'failure').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "processed",
  "status": "success"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kihustle-ed25519-signature-verify-light-67efe42d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kihustle.tech](https://www.zero.xyz/host/kihustle.tech/llms.txt)