Optum · Rate Limits

Optum Rate Limits

Optum Rate Limits is the rate-limit profile for Optum on the APIs.io network.

The provider publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.

Limit state is signalled in the standard_rate_limit_headers, observed, and note response headers.

Tagged areas include Company, Healthcare, Health Insurance, Claims, and Eligibility.

0 Limits standard_rate_limit_headersobservednote
Derived by API Evangelist from the provider's contracts on 2026-08-14.
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Limits

Optum publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.
Optum publishes NO numeric rate limit anywhere on developer.optum.com — no requests-per-second, no per-key quota, no burst allowance, and no throttling policy page. The only rate-limit signal in the entire public surface is a documented 429 response on the Dental Attachment API (10 of its 11 operations, including the token endpoint), described verbatim as "The requestor has sent more requests within a given timeframe than allowed." None of the other 37 harvested specs declare a 429 at all, and no spec declares a rate-limit response header. An agent therefore cannot budget against this API: it can only discover the ceiling by hitting it, and on most endpoints it will not even get a 429 it was told to expect.
CompanyHealthcareHealth InsuranceClaimsEligibilityFHIRInteroperabilityPharmacyEDIX12PaymentsPrior AuthorizationClearinghouseRevenue CycleDentalDa VinciPatient AccessAttachmentsPayer Directory

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Tools for rate limits

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  • 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.
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Call it yourself

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

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