a0f2d008e0
- Remove legacy TTS rate limit environment variables and migrate all related configuration to runtime settings managed via the Admin UI - Add runtime config keys for TTS rate limiting enable/disable and per-user/IP daily quotas - Refactor rate limiter and API routes to use runtime config for thresholds and enablement - Update AdminFeaturesPanel to allow editing TTS rate limiting and quota values in the UI - Add shared-provider-selection utility for consistent provider selection logic - Update documentation to reflect new runtime/admin configuration and remove obsolete env var docs - Add unit tests for rate limit runtime settings and provider selection BREAKING CHANGE: TTS rate limiting is now controlled via Admin → Site features; environment variables for TTS rate limiting are no longer supported and will be ignored.
41 lines
1.5 KiB
Markdown
41 lines
1.5 KiB
Markdown
---
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title: TTS Rate Limiting
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---
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This page explains OpenReader's TTS character rate limiting controls.
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## Overview
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- TTS rate limiting is disabled by default.
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- Primary control is **Settings → Admin → Site features → Disable TTS daily rate limiting**.
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- Optional first-boot seed: `RUNTIME_SEED_DISABLE_TTS_LIMIT=true`.
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- Limits are enforced per day in UTC.
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- Enforcement applies only when auth is enabled.
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## How enforcement works
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When enabled, OpenReader enforces:
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- Per-user daily character limits.
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- IP backstop daily character limits.
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- Anonymous device backstop tracking (cookie-based) to reduce limit resets.
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If a request exceeds the active limit, the TTS API returns `429` with reset metadata for the next UTC day.
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## Required auth behavior
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- Auth must be enabled (`BASE_URL` + `AUTH_SECRET`) for TTS char limits to apply.
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- If auth is disabled, TTS character limits are effectively unlimited.
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- `DISABLE_AUTH_RATE_LIMIT` only affects Better Auth's own request throttling.
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- `DISABLE_AUTH_RATE_LIMIT` does not disable TTS character limits.
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## Runtime config + seed var
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- First-boot seed toggle: `RUNTIME_SEED_DISABLE_TTS_LIMIT` (default: `true`)
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- Per-user and IP backstop limit values are configured in **Settings → Admin → Site features** and stored in DB runtime settings.
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## Related docs
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- TTS/rate-limit environment variables: [Environment Variables](../reference/environment-variables#tts-provider-and-request-behavior)
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- Auth configuration: [Auth](./auth)
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- Provider setup: [TTS Providers](./tts-providers)
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