Arbiscan · Rate Limits

Arbiscan Rate Limits

Machine-readable rate limit definitions for the Arbiscan API surface. Arbiscan operates as part of the Etherscan unified V2 platform targeting Arbitrum One (chainid 42161). Rate limits are enforced per API key across all tiers from free community access through enterprise dedicated infrastructure.

Arbiscan Rate Limits is the machine-readable rate-limit profile for Arbiscan on the APIs.io network, in the API Commons Rate Limits shape.

It captures 14 rate-limit definitions, across the free, lite, standard, advanced, and professional tiers, measuring requests_per_second and requests_per_day.

Limit state is signalled in the limit, remaining, reset, and retryAfter response headers, and an exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 5 backoff/retry policies defined and response codes documented for throttled, quotaExceeded, and serviceUnavailable.

Tagged areas include Blockchain, Cryptocurrency, Arbitrum, Layer 2, and EVM.

14 Limits Exhausted: HTTP 429 Quota: 429 limitremainingresetretryAfter
Method: generated, dated 2026-06-13.
Written by API Evangelist on 2026-06-13 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
BlockchainCryptocurrencyArbitrumLayer 2EVMWeb3Rate LimitingQuotasThrottling

Limits

Free Tier Rate Limit api-key
requests_per_second · second
3
Free Tier Daily Quota api-key
requests_per_day · day
100000
Lite Tier Rate Limit api-key
requests_per_second · second
5
Lite Tier Daily Quota api-key
requests_per_day · day
100000
Standard Tier Rate Limit api-key
requests_per_second · second
10
Standard Tier Daily Quota api-key
requests_per_day · day
200000
Advanced Tier Rate Limit api-key
requests_per_second · second
20
Advanced Tier Daily Quota api-key
requests_per_day · day
500000
Professional Tier Rate Limit api-key
requests_per_second · second
30
Professional Tier Daily Quota api-key
requests_per_day · day
1000000
Pro Plus Tier Rate Limit api-key
requests_per_second · second
30
Pro Plus Tier Daily Quota api-key
requests_per_day · day
1500000
Enterprise Negotiated Rate Limit contract
requests_per_second · second
-1
Enterprise Daily Quota contract
requests_per_day · day
-1

Policies

Backoff Strategy
Clients should implement exponential backoff with jitter, honoring the Retry-After header when present. The Arbiscan API returns HTTP 429 when rate limits are exceeded.
Burst Handling
Short bursts above the steady-state per-second limit are tolerated up to the documented burst ceiling before throttling engages.
Quota Reset
Daily quotas reset at midnight UTC. Per-second windows reset on a rolling basis.
Fair Use
Even on uncapped enterprise tiers, sustained usage that materially impacts shared infrastructure may be subject to fair-use throttling or require dedicated infrastructure upgrades.
Chain Scope
Rate limits apply globally across all chains accessed via the unified Etherscan V2 API key. Calls to Arbitrum One (chainid 42161) count toward the same quota as calls to other chains under the same API key.

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

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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.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/arbiscan-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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