Plans and limits
Free vs Pro limits for functions, frontends, databases, storage, realtime, and your account on Volcano.
Volcano has two plans, Free and Pro. Limits apply per project unless the
scope column says otherwise. "Unlimited" means there is no fixed cap (Pro usage
may be metered); "Unavailable" means the feature is not offered on that plan.
| Limit | Free | Pro | Scope |
|---|
| Projects | 1 | 1,000 | Per account (creation cap) |
| Bandwidth | 10 GB / month | Unlimited | Aggregate ingress + egress across all your projects |
| Limit | Free | Pro | Scope |
|---|
| Timeout | 30 s | 180 s | Per invocation |
| Memory | 128 MB | 256 MB | Per runtime |
| Ephemeral disk | 512 MB | 1 GB | Per runtime |
| Functions per project | 10,000 | 10,000 | Absolute hard cap |
Functions and frontends share these counters.
| Limit | Free | Pro | Scope |
|---|
| Requests per month | 100,000 | Unlimited | Combined: every function invocation and proxied frontend request, including static assets and /_next/image |
| Rate limit (per resource) | 10 req/s | Unlimited | Each function or frontend |
| Rate limit (per project) | 60 req/s | Unlimited | Across all functions and frontends |
| Build timeout | 30 min | 60 min | Per build |
| Build minutes / month | 60 | Unlimited | New builds are blocked once used up |
| Limit | Free | Pro | Scope |
|---|
| Requests / month | 100,000 | Unlimited | All queries (eventual enforcement) |
| Databases per project | 1 | 10,000 | Creation cap |
| Storage per database | 1 GB | Unlimited | Over-limit databases become read-only |
| Limit | Free | Pro | Scope |
|---|
| Total storage per project | 512 MB | Unlimited | Stored bytes |
| Max object size | 100 MB | 10 GB | Per uploaded file |
| Buckets per project | 20 | Unlimited | Creation cap |
| Limit | Free | Pro | Scope |
|---|
| Concurrent connections | 200 | 100,000 | Per project |
| Messages / month | 100,000 | Unlimited | Counts fan-out recipients, not just publishes |
| Max message size | 256 KB | 1 MB | Per message |
| Channels per connection | 100 | 500 | Per WebSocket connection |
| Limit | Free | Pro | Scope |
|---|
| Frontend sites per project | 1 | Unlimited | Plan quota |
| Absolute frontend hard cap | 10,000 | 10,000 | Safety hard cap |
| Custom domains | Unavailable | 1 per frontend | Plan gate |
| Limit | Free | Pro | Scope |
|---|
| Scheduled functions | Unavailable | 5 | Per project |
| Runtime log retention | 1 day | 30 days | Search / retention window |
How a limit is enforced depends on the limit — you may see an HTTP 403
(Forbidden), 413 (Payload Too Large), or 429 (Too Many Requests), a Realtime
protocol error or disconnect, or a PostgreSQL error (SQLSTATE 53400).
