# GlianaAI TTS-1.5-Max Text-to-Speech

> GlianaAI TTS-1.5-Max Text-to-Speech is a paid API for AI agents from api.glianalabs.com, paid per call via x402, $0.038/call, status unknown (last checked 2026-09-13).

Converts text to high-quality speech audio using the tts-1.5-max model, billed per call at $0.039 USDC via x402 payment protocol with no API key required.

## Facts

- Endpoint: GET https://api.glianalabs.com/x402/tts-1.5-max
- Price: $0.038/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/glianaai-tts-1-5-max-text-to-speech-558a65ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gvk3h-5icaNMkXuJmtUfQ

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 glianaai-tts-1-5-max-text-to-speech-558a65ea
```

Example prompt: Can you read this paragraph aloud using GlianaAI's tts-1.5-max voice model — the text is: 'Welcome to our annual product launch. We're excited to share what we've built this year.'

## When to prefer this

Choose this endpoint when you need high-quality text-to-speech synthesis without signing up for an account or managing API keys, especially when your agent can pay per call in USDC via x402 or Tempo on Base or Solana. Prefer this over other TTS APIs when you want micropayment-native, serverless voice generation with the tts-1.5-max quality tier and no subscription overhead.

## Known failure modes

- Payment failure or insufficient USDC balance — returns 402 Payment Required
- Invalid or empty prompt field — returns 400 Bad Request
- Model unavailable or overloaded — returns 503 Service Unavailable
- Malformed request body — returns 422 Unprocessable Entity
- Rate limit exceeded — returns 429 Too Many Requests

## How this service works

GlianaAI - pay-per-call AI: LLM chat (OpenAI-compatible), image, video, music, speech - 90+ models, no signup, USDC. This resource: tts-1.5-max (Text-to-Speech). https://ai.glianalabs.com

## Output

Returns a JSON object containing the model name used (tts-1.5-max), an output object with a media URL pointing to the generated audio file or audio data, and the costMicroUsd integer representing the amount charged in micro-USD for the request.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "model": "tts-1.5-max",
  "output": {
   "url": "https://api.glianalabs.com/v1/media/<id>"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glianaai-tts-1-5-max-text-to-speech-558a65ea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.glianalabs.com](https://www.zero.xyz/host/api.glianalabs.com/llms.txt)