# Fish Audio — card for AI agents

TTS app and pay-as-you-go API priced per UTF-8 byte; S2.1-Pro claims 83 languages.

Category: Voiceover (text-to-speech) · maker Fish Audio · checked 2026-10-10

## Price
- Price: Free tier
- Free tier: App: 8,000 credits/month (about 7 min, max 500 chars per generation); API lists a free s2.1-pro-free model.
- Paid from $11/month
- Usage price: API $15 per 1M UTF-8 bytes (s2.1-pro / s2-pro). App Plus $11/month billed annually ($15 monthly).
- Pricing page: https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits

## License
Fish Audio Terms — https://fish.audio/terms/

- commercial: **conditions** (Commercial use with conditions)
  > if you are a user of Paid Services, you are licensed to use the Services for commercial uses
  (https://fish.audio/terms/)
- in app: **conditions** (Ship inside your app with conditions)
- youtube: **conditions** (Monetized YouTube with conditions)
- ai training: **banned**
  > use output from the Services to develop models that compete with Fish.Audio
  (https://fish.audio/terms/)
- bots: **banned**
  > “crawls,” “scrapes,” or “spiders” any page, data, or portion of or relating to the Services or Content
  (https://fish.audio/terms/)

## Rules to follow
- Use a paid plan for commercial use; the free plan is personal and non-commercial.
- Budget about 2 bytes per character for Cyrillic and other non-Latin text.

## How an agent gets files
- Pay-as-you-go REST API; Generate Speech reference at https://docs.fish.audio/api-reference/endpoint/openapi-v1/text-to-speech. (sign-in: api-key)
- Not allowed: Free plan users may only use output for personal, non-commercial use; paid plans are licensed for commercial use.
- Not allowed: Do not scrape or use output to train competing models.
- Not allowed: Do not present AI content as entirely human generated.
- Not allowed: Model s1 is deprecated and retires December 31, 2026.

## How to connect
- Official MCP server
- API docs: https://docs.fish.audio (API key needed)
- PyPI: `pip install fish-audio-sdk`
- Website: https://fish.audio

## Notes
The plan page lists 'Commercial use allowed' from Plus. Model s1 retires 2026-12-31.

## Lines to paste into your prompt or AGENTS.md

```
- Fish Audio (Voiceover (text-to-speech)). TTS app and pay-as-you-go API priced per UTF-8 byte; S2.1-Pro claims 83 languages. Price: free tier; commercial use with conditions; ship inside your app with conditions; no AI training on its content; no bots or bulk downloading.
  Connect: API docs https://docs.fish.audio (API key needed); PyPI fish-audio-sdk.
  Get files: Pay-as-you-go REST API; Generate Speech reference at https://docs.fish.audio/api-reference/endpoint/openapi-v1/text-to-speech.
  Not allowed: Free plan users may only use output for personal, non-commercial use; paid plans are licensed for commercial use.
  Not allowed: Do not scrape or use output to train competing models.
  Not allowed: Do not present AI content as entirely human generated.
  Not allowed: Model s1 is deprecated and retires December 31, 2026.
  Rule: Use a paid plan for commercial use; the free plan is personal and non-commercial.
  Rule: Budget about 2 bytes per character for Cyrillic and other non-Latin text.
  License: https://fish.audio/terms/ (checked 2026-10-10; details: https://agentgid.com/assets/fish-audio/)
```

Not verified: Whether the free API model allows commercial use; whether npm fish-audio-sdk is official.

## Links
- AgentGid page: https://agentgid.com/assets/fish-audio/
- Is it free for commercial use? https://agentgid.com/assets/fish-audio/commercial-use/
- Source: https://fish.audio/plan/
- Source: https://fish.audio/terms/
- Source: https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits
- Source: https://docs.fish.audio/developer-guide/models-pricing/models-overview.md

---
AgentGid's catalog is curated: every entry was checked against the maker's official pages (registry, repository, license and pricing pages) on the date shown; a license value shows the quote it stands on wherever AgentGid has one. Usage numbers come from AgentGid's own scan of public repositories set up for AI coding agents. Claims by makers are reported, not tested by AgentGid.