Platform
- Availability terms: Plan- and contract-dependent
- Response latency: Depends on model, voice provider, transcriber, network path, and enabled tools
- Voices: Hundreds across 50+ languages
- Agents: Unlimited — no cap on the number of agents
Plan Limits
Some limits are commercial and plan-dependent (for example: included minutes, concurrent calls, and knowledge bases). Use these as source of truth for your account’s current values:Plan packaging and pricing can change over time. This page focuses on technical limits enforced by the API/runtime.
API Rate Limits
API requests are rate-limited to protect platform stability. Contact support@itellico.ai if you need specific rate limit details for your integration. When you exceed a limit, the API returns HTTP429 Too Many Requests with error code rate_limit_exceeded.
Recommended client behavior:
- Retry with exponential backoff.
- Add jitter to avoid synchronized retries.
- Reduce burst traffic (batch where possible).
Selected File Limits
Several upload flows enforce hard file-size caps. Common limits include:| Resource type | Limit |
|---|---|
| Knowledge base file upload | 10 MB per file |
| Conversation attachments | 10 MB per file |
| Many audio/media uploads | 10 MB per file (endpoint-specific) |
Next Steps
Plans
Compare plans and features
Usage & Pricing
Understand per-minute costs and billing
API Reference
View full API documentation
Supported Providers
Browse AI models, voices, and transcription engines