name: BscScan API Rate Limits
description: BscScan API rate limits are enforced per API key and vary by subscription plan. Limits apply to calls per second and total daily calls. Free API keys support up to 5 calls per second. Pro plans unlock higher throughput up to 30 calls per second with up to 1.5 million daily calls.
url: https://info.bscscan.com/apis/
rateLimits:
  - plan: Free
    callsPerSecond: 5
    dailyCalls: 100000
    apiKeys: 3
    notes:
      - Data values update programmatically up to 30 calls per second at the platform level
      - Free keys restricted to selected chains
  - plan: Lite
    callsPerSecond: 5
    dailyCalls: 100000
    apiKeys: 3
    notes:
      - All 60+ EVM chains accessible including BSC (chainid=56)
  - plan: Standard
    callsPerSecond: 10
    dailyCalls: 200000
    notes:
      - Includes Pro endpoint access
  - plan: Advanced
    callsPerSecond: 20
    dailyCalls: 500000
    notes:
      - Includes Pro endpoint access
  - plan: Professional
    callsPerSecond: 30
    dailyCalls: 1000000
    notes:
      - Includes Pro endpoint access
  - plan: Pro Plus
    callsPerSecond: 30
    dailyCalls: 1500000
    notes:
      - Includes Address Metadata endpoint
  - plan: Enterprise
    callsPerSecond: unmetered
    dailyCalls: unmetered
    notes:
      - Dedicated infrastructure
      - SLA-backed
enforcement:
  - Requests exceeding the rate limit will receive an error response
  - Implement exponential backoff for retry logic on rate limit errors
  - Each API key is subject to its own rate limit independently
authentication:
  method: apikey
  parameterName: apikey
  location: query
  notes:
    - API keys are created at bscscan.com/myapikey
    - Maximum 3 API keys per account on free plans
    - API key must be included in every request