specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: Ankr
providerId: ankr
created: '2026-05-25'
modified: '2026-05-25'
reconciled: true
tags:
  - Web3
  - RPC
  - Rate Limiting
description: |
  Reconciled rate limits for Ankr's Node API (RPC) and Advanced API across Public, Premium, and Enterprise
  plans. Public limits are IP-scoped and shared. Premium limits are project-scoped (API-key bound) and
  documented as multipliers over Public.
sources:
  - https://www.ankr.com/rpc/pricing/
  - https://www.ankr.com/docs/rpc-service/service-plans/
  - https://www.ankr.com/docs/advanced-api/overview/
headers:
  responseCodes:
    throttled: 429
algorithm: leaky-bucket
limits:
  - plan: Public
    api: Node API
    scope: ip
    rps: 30
    notes: |
      Shared per-IP across all chains. Spikes above 30 rps return HTTP 429.
      Eth_getLogs filtered ranges are clamped; archive methods are not exposed.
  - plan: Public
    api: Advanced API
    scope: ip
    rps: 1
    notes: |
      Advanced API on Public is heavily rate-limited and intended for evaluation only.
  - plan: Premium
    api: Node API
    scope: api-key
    multiplier: x50
    notes: |
      Premium multiplies Public Node API throughput by 50. Per-chain caps may vary.
      WebSocket subscriptions count against the same project budget.
  - plan: Premium
    api: Advanced API
    scope: api-key
    multiplier: x30
    notes: |
      Premium multiplies Public Advanced API throughput by 30.
  - plan: Enterprise
    api: Node API + Advanced API
    scope: contract
    rps: custom
    notes: |
      Dedicated capacity, archive access, private endpoints, custom concurrency negotiated in contract.
limitsByEndpointFamily:
  evm-rpc:
    - method: eth_getLogs
      publicBlockRangeCap: 3000
      premiumBlockRangeCap: 5000
      notes: Larger ranges return -32600.
    - method: debug_*
      availability: Enterprise only
    - method: trace_*
      availability: Enterprise only
projects:
  publicPlan: 0
  premiumPlan: 3
  enterprisePlan: custom
quotas:
  premiumStatistics:
    dashboard: multi-project
    metrics:
      - totalRequests
      - topChains
      - successRate
      - failureRate
notes:
  - Ankr expresses Premium throughput as a multiplier over Public rather than an absolute RPS.
  - Premium API keys can be IP-whitelisted; off-allowlist requests return 403.
  - Rate limits are enforced at the regional edge across Ankr's 30+ region DePIN.