Limits (gRPC)
Access by Tier
| Tier | gRPC | Connections | Message rate |
|---|---|---|---|
| Build | Yes | 5 | Fair use |
| Grow | Yes | 15 | Fair use |
| Accelerate | Yes | 50 | High priority |
| Dedicated | Yes | Custom | Uncapped* |
*Hardware limits apply.
Constraints
Connections - the number of active subscribe streams per endpoint. If you hit the cap, new subscribe attempts are rejected until you close an existing stream.
Payload size - individual gRPC messages are capped at 4 MB. If a response exceeds this, such as a large block with many transactions, the message is dropped. Use account or program filters to keep responses within bounds.
Throttling - on shared tiers, if your aggregate bandwidth significantly outpaces other users on the same node, we throttle the stream and notify you via Discord. The usual resolution is moving to a higher tier or a dedicated node.
For the full limits picture across all interfaces, see Limits & Fair Use.