Rate Limits
API rate limits, quotas, and best practices
API Rate Limits
| Surface | Limit |
|---|---|
| Public Agent API (call trigger) | 60 requests/minute |
| REST API — write operations | 60 requests/minute |
| REST API — read operations | 300 requests/minute |
| MCP Server | 120 requests/minute |
Rate limit responses include a
Retry-After header with the seconds to wait.Voice Minute Quota
Calls debit from your organisation's minute balance at the configured rate per minute.
| Source | Description |
|---|---|
| Minute Packs | Pre-purchased blocks: 100, 250, 500, 1,000, 5,000, 10,000 minutes |
| PAYG Balance | Pay-as-you-go wallet balance |
When both sources are exhausted, new calls return
402 Payment Required.Concurrent Call Limits
| Limit Type | Where it's configured |
|---|---|
| Organisation limit | Set per org by Sysevo — visible in portal |
| Campaign concurrency | max_concurrency field — further capped by phone number count |
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