Helius · Rate Limits

Helius Rate Limits

Helius enforces per-API-key RPC requests-per-second and a monthly credit cap.

5 Limits Throttle: 429
Web3BlockchainSolanaRPCDASStreamsRate Limiting

Limits

Free RPC RPS api_key
requests_per_second
10
Free plan.
Developer RPC RPS api_key
requests_per_second
50
Developer plan.
Business RPC RPS api_key
requests_per_second
200
Business plan.
Professional RPC RPS api_key
requests_per_second
500
Professional plan.
Monthly Credits account
credits
see plan
Monthly credit ceiling per plan.

Policies

Backoff Strategy
Exponential backoff on 429.
Use Webhooks/LaserStream
Avoid RPC polling; subscribe via Webhooks or LaserStream gRPC.

Sources