# Omnicall Kokoro Text-to-Speech (TTS)

> Omnicall Kokoro Text-to-Speech (TTS) is a paid API for AI agents from omnicall.gocreativeai.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Converts a text prompt into a natural AI voice audio file URL using the Kokoro TTS model, payable per call via USDC on Base or Solana.

## Facts

- Endpoint: GET https://omnicall.gocreativeai.com/v1/ai/speech/:var1
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omnicall-kokoro-text-to-speech-tts-51266c37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rxQb25mrN6hMFUzTvrwYH

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 omnicall-kokoro-text-to-speech-tts-51266c37
```

Example prompt: Can you read this aloud using Kokoro's AI voice: 'Welcome to our platform, we're glad you're here. Let's get started on your journey today.' — give me a playable audio URL.

## When to prefer this

Choose this endpoint when you need keyless, pay-per-call text-to-speech with no signup, using Kokoro's natural AI voice, and you want a direct audio URL returned. Ideal for voice bots, accessibility tools, narration pipelines, or agent workflows on Base or Solana where microtransactions are feasible.

## Known failure modes

- Missing or empty 'input' query parameter returns an error
- Text input too long may cause timeout or truncation
- Payment not processed (insufficient USDC balance) returns 402
- Invalid path variable causes 404
- Network or upstream Kokoro service failure returns 500

## How this service works

Text-to-speech — natural AI voice audio from any text (Kokoro). Pay-per-call USDC, no API key. For voice agents, narration, and accessibility — cheaper than dedicated TTS providers.

## Output

A URL pointing to a generated audio file containing the natural-sounding AI voice (Kokoro) reading the provided text input aloud.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "input"
     ],
     "properties": {
      "input": {
       "type": "string",
       "description": "endpoint argument"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omnicall-kokoro-text-to-speech-tts-51266c37/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from omnicall.gocreativeai.com](https://www.zero.xyz/host/omnicall.gocreativeai.com/llms.txt)