Arkham · Rate Limits

Arkham Rate Limits

Arkham enforces per-second request rate limits (Standard 20 rps, Heavy 1 rps on resource-intensive endpoints) plus per-billing-period Intel label lookup limits that cap unique labeled addresses. Both scale up on custom plans. x402 limits are enforced per paying wallet.

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

It captures 5 rate-limit definitions, measuring requests_per_second and unique_labeled_addresses.

Limit state is signalled in the requestId, intelUsage, intelLimit, and intelRemaining response headers, and an exhausted limit returns HTTP 429.

The profile also includes response codes documented for throttled.

Tagged areas include Rate Limiting and Blockchain Intelligence.

5 Limits Exhausted: HTTP 429 requestIdintelUsageintelLimitintelRemaining
Transcribed from the provider's documentation on 2026-07-18 — arkm.com/llms/guides/rate-limits.md.
View Source
Rate LimitingBlockchain Intelligence

Limits

Standard endpoints plan
requests_per_second · second
20
Most endpoints, with small burst allowance.
Heavy endpoints plan
requests_per_second · second
1
Resource-intensive endpoints: transfers, transfers/unenriched, transfers/histogram, swaps, token/top, token/top_flow, token/volume, intelligence/search, counterparties, flow.
Intel label lookups — Trial account
unique_labeled_addresses · billing_period
10000
Intel label lookups — Individual (paid) account
unique_labeled_addresses · billing_period
1000000
Intel label lookups — Organization (paid, per seat) seat
unique_labeled_addresses · billing_period
10000000

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

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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.
All 92 tools →

Call it yourself

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

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