Helius · Rate Limits
Helius Rate Limits
Helius enforces per-API-key RPC requests-per-second and a monthly credit cap.
Helius Rate Limits is the machine-readable rate-limit profile for Helius on the APIs.io network, conforming to the API Commons Rate Limits specification.
It captures 5 rate-limit definitions, measuring requests_per_second and credits.
The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.
Tagged areas include Web3, Blockchain, Solana, RPC, and DAS.
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.
Sources
Work with this as data
Every rate limit here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for rate limits
4 MCP tools reach this
find_rate_limitsBrowse and filter every rate limit in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This rate limit
curl "https://apis.io/api/v1/rate-limits/helius-rate-limits"
All rate limits
curl "https://apis.io/api/v1/rate-limits?limit=25"Discovery needs no key. Ratings and market analysis are Pro.