IPQualityScore · Rate Limits

Ipqualityscore Rate Limits

IPQualityScore meters usage primarily by monthly and daily lookup quotas tied to the account plan, where each fraud-detection API request consumes one lookup. Paid plans also publish a per-second request rate limit (for example, 20 lookups/second on SMB Basic). Exceeding the lookup quota or request rate returns an unsuccessful response with success=false and an explanatory message. Specific per-second limits above the published tiers are not reconciled in this artifact.

Ipqualityscore Rate Limits is the machine-readable rate-limit profile for IPQualityScore on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 4 rate-limit definitions, measuring lookups, requests, and rules.

The profile also includes 3 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Fraud Prevention, IP Reputation, Proxy Detection, Email Validation, and Threat Intelligence.

4 Limits Throttle: 429
Fraud PreventionIP ReputationProxy DetectionEmail ValidationThreat IntelligenceRate LimitingQuotasThrottling

Limits

Monthly Lookups account
lookups
varies by plan (1,000 Free to custom Enterprise)
Each API request consumes one lookup against the monthly quota.
Daily Lookups account
lookups
varies by plan (35/day Free, 250/day Startup)
Daily cap applied on top of the monthly quota on lower tiers.
Requests Per Second account
requests
see provider documentation (e.g., 20/second on SMB Basic)
Per-second request rate limit published per paid plan.
Custom Rules account
rules
varies by plan (10 Free to 25,000 Enterprise)
Maximum number of custom scoring/decision rules per account.

Policies

Tiered Limits
Lookup quotas and request rates increase as accounts move from Free to paid and Enterprise plans.
Quota Enforcement
Requests beyond the lookup quota return success=false with an explanatory message rather than billable data.
Backoff Strategy
Clients should implement exponential backoff with jitter and honor throttling responses.

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

One button, every client — Claude, Cursor, VS Code and the rest.

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/ipqualityscore-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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