# x402factory.ai Solana TTS - Dynamic Pricing

> x402factory.ai Solana TTS - Dynamic Pricing is a paid API for AI agents from x402factory.ai, paid per call via x402, $0.0138/call, status unknown (last checked 2026-09-14).

Converts input text into a hosted audio URL using text-to-speech synthesis, with dynamic per-character pricing paid via x402 on Solana

## Facts

- Endpoint: POST https://x402factory.ai/solana/tts
- Price: $0.0138/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402factory-ai-solana-tts-dynamic-pricing-9169b332
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gvD4g1-rw69JKq7l6czKb

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-solana-tts-dynamic-pricing-9169b332 -d '<json body>'
```

Example prompt: Can you convert this text into spoken audio: 'Welcome to our platform, we are glad you are here'? Use the Solana TTS endpoint and give me back the hosted audio URL.

## When to prefer this

Choose this endpoint when you need dynamic per-request pricing for TTS (cost scales with character count), want to pay via x402 on Solana in USDC, and need a hosted audio URL returned directly. Prefer over fixed-tier TTS endpoints when input length varies significantly per request.

## Known failure modes

- Insufficient USDC balance in x402 wallet causes payment failure
- Text input too long or malformed returns an error
- x402 payment protocol negotiation failure
- Hosted audio URL generation failure if storage backend is unavailable
- Invalid or missing Solana wallet credentials

## How this service works

Solana text-to-speech API paid via x402. Converts text input into a hosted audio URL. Dynamic pricing for TTS: the prepaid price is computed per request based on the input and charged upfront via x402. Estimated characters for this request: 23. Prepaid price for this request: 0.013800 USDC.

## Output

A hosted audio URL pointing to the synthesized speech file corresponding to the input text. The price charged is dynamically computed based on character count and deducted upfront via x402 in USDC on Solana.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402factory-ai-solana-tts-dynamic-pricing-9169b332/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)