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
10
Free plan.
Developer RPC RPS api_key
50
Developer plan.
Business RPC RPS api_key
200
Business plan.
Professional RPC RPS api_key
500
Professional plan.
Monthly Credits account
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.