# Omnicall AI Speech Generation

> Omnicall AI Speech Generation is a paid API for AI agents from omnicall.gocreativeai.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Converts text to speech audio using AI voice generation, payable per call in USDC with no API key required

## Facts

- Endpoint: GET https://omnicall.gocreativeai.com/v1/ai/speech/%7Barg%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omnicall-ai-speech-generation-b72e998b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VdzTEs6xZ2Vu24ubRDCQq

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-ai-speech-generation-b72e998b
```

Example prompt: Use Omnicall's speech endpoint to turn this text into spoken audio — no API key needed, just pay per call in USDC: 'Welcome to our platform, we're glad you're here. Let's get started.'

## When to prefer this

Choose this endpoint when you need pay-per-call text-to-speech generation with no API key setup, especially in agent workflows using x402 micropayments on Base or Solana. Ideal for agents that need occasional voice synthesis without committing to a subscription or managing API credentials.

## Known failure modes

- Payment not received or insufficient USDC — returns 402 Payment Required
- Invalid or missing arg path parameter — returns 400 Bad Request
- Unsupported voice or model argument — returns 422 Unprocessable Entity
- Service unavailable or generation failure — returns 500 Internal Server Error
- Network timeout during audio generation — returns 504 Gateway Timeout

## How this service works

Omnicall is the all-in-one agent gateway: 247 LLMs plus image, video, voice & music generation, live crypto/DeFi/prediction-market data, web search and on-chain reads — one OpenAI-compatible endpoint, pay per call in USDC on Base or Solana, no API key.

## Output

Returns synthesized speech audio generated from the provided text input, delivered as an audio file or stream after a micropayment of $0.01 USDC on Base or Solana.

## 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-ai-speech-generation-b72e998b/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)