Rate limiting
Understand the rate limits for Hiro APIs and the STX Faucet.
API rate limits
All Hiro API services require an API key, which you can access with your Hiro Platform account. The following rate-limits (in requests per minute, or RPM) are applicable for all Hiro APIs as of November 2023:
| Tiers | API RPM | Stacks per Month | L1 per Month |
|---|---|---|---|
| Free / Starter | 900 | 150k | 50k |
| $99 / Build | 9k | 15M | 500k |
| $599 / Scale | 18k | 75M | 5M |
| Enterprise | custom | custom | custom |
With a single API key, you gain access to Hiro’s suite of API services that span Bitcoin and Stacks:
Bitcoin L1 API services
Stacks L2 API services
These new rate limits help us ensure fair usage of Hiro APIs and provide the best possible service as our community of developers and applications grow.
Need an API key?
You can create one for free in the Hiro Platform by creating an account.
STX Faucet rate limits
Note: this faucet is for Stacks testnet and provides testnet STX, which has no monetary value.
| Type | Rate Limit |
|---|---|
| Stacking requests | 1 request per 2 days |
| Regular STX requests | 1 request per minute (RPM) |