# x402factory-ai Solana TTS Tier 44 (0.44 USDC, up to 733 chars)

> x402factory-ai Solana TTS Tier 44 (0.44 USDC, up to 733 chars) is a paid API for AI agents from x402factory.ai, paid per call via x402, $0.44/call, status unknown (last checked 2026-09-15).

Converts up to 733 characters of text into a hosted audio URL using a fixed-price Solana x402 payment of 0.44 USDC

## Facts

- Endpoint: POST https://x402factory.ai/solana/tts/44
- Price: $0.44/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402factory-ai-solanatts44-a961aedb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nM7Z1QgBJGQPh2pRTAIHQ

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 x402factory-ai-solanatts44-a961aedb -d '<json body>'
```

Example prompt: Can you turn this text into speech audio and give me a hosted link: 'Welcome to our store! We offer premium handcrafted goods delivered to your door. Check out our latest collection today.' — pay 0.44 USDC via Solana.

## When to prefer this

Use this endpoint when you need to synthesize up to 733 characters of text into audio and want to pay exactly 0.44 USDC via Solana/x402. Ideal for short announcements, notifications, product descriptions, or social media captions that fit within the character limit. Choose a higher /solana/tts/<amount> tier for longer texts.

## Known failure modes

- HTTP 400 if text exceeds 733 characters — use a higher-priced /solana/tts/<amount> tier instead
- HTTP 402 Payment Required if x402 Solana payment is not included or invalid
- Payment processing failure if Solana wallet has insufficient USDC
- Empty or malformed text body returns an error

## How this service works

Solana text-to-speech API with fixed-price tiers paid via x402. Converts text input into a hosted audio URL. This endpoint is a fixed-price tier: '/solana/tts/44' charges exactly 0.440000 USDC prepaid. Within this tier, you can send up to 733 characters (including spaces). If you send more, the server returns HTTP 400 and you should use a higher-priced /solana/tts/<amount> tier. Each integer segment after /solana/tts/ represents 0.01 USDC (e.g. /solana/tts/50 = 0.50 USDC, /solana/tts/1000 = 10.00 USDC).

## Output

A hosted audio URL pointing to the synthesized speech file generated from the submitted text input.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402factory-ai-solanatts44-a961aedb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402factory.ai](https://www.zero.xyz/host/x402factory.ai/llms.txt)