This page collects cross-cutting limits. Endpoint pages remain the source of truth for request and response fields.
| Constraint | Value |
|---|
| Key name length | 30 characters |
| Bucket name length | 30 characters |
| Value length | 1000 characters, about 1 KB |
| Default key TTL | 30 days |
| Maximum key TTL | 2,592,000 seconds, 30 days |
| Bucket naming | Cannot start with reserved- or end with --- |
| Constraint | Value |
|---|
| New token credits | 100 credits |
| Token inactivity before deletion | 2 years |
| Log retention | 7 days |
| Log deletion after expiration | Within 24 hours |
| Default log count | 5 |
| Maximum log count | 100 |
| Constraint | Value |
|---|
| Webhook URL | Must be HTTPS and publicly reachable |
| Localhost/private addresses | Not accepted |
| Delivery timeout | 10 seconds |
| Inbound email payload | 1 MiB after parsing |
| Custom template size | 2048 bytes |
| Custom template depth | 5 levels |
| Format options | Up to 10 keys, values up to 500 characters |
| Schedule expression | 5-field cron: minute hour day month weekday |
| Schedule timezone | IANA timezone, for example Europe/Rome |
| First scheduled run | Must occur within 30 days |
| Maximum interval between runs | 30 days |
| API | Limits |
|---|
| DNS Lookup | timeout from 1000 to 60000 ms, maxRetries from 0 to 10, retryDelay from 0 to 100000 ms |
| URL To Metadata | Target URL must be publicly reachable; nested data fields are optional and should be parsed defensively |
| My IP | Returns metadata derived from the request; unavailable fields may be empty or omitted |
Most authenticated API calls consume credits even when the request returns a client error. GET /token/logs is free. Some utility endpoints do not charge for 5xx service responses; see the endpoint page for the exact cost rule.