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 your account contact. 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.