Availity · Rate Limits

Availity Rate Limits

Published per-plan rate limits and quotas for the Availity REST APIs, read from the developer portal product catalogue. Limits are enforced per subscribed application/plan; the plan itself is governed by the trading-partner agreement.

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

It captures 4 rate-limit definitions, measuring calls.

Limit state is signalled in the published, x_ratelimit, ratelimit_draft, and retry_after response headers, and an exhausted limit returns HTTP 429.

The profile also includes 6 backoff/retry policies defined and response codes documented for throttled, throttled_message, serviceUnavailable, and serviceUnavailable_note.

Tagged areas include Healthcare, HIPAA, X12 EDI, and Rate Limiting.

4 Limits Exhausted: HTTP 429 publishedx_ratelimitratelimit_draftretry_after
Transcribed from the provider's documentation on 2026-08-15 — developer.availity.com/portal/catalogue-products/healthca....
View Source
HealthcareHIPAAX12 EDIRate Limiting

Limits

Healthcare HIPAA Transactions — Standard plan, daily quota application-planhealthcare-hipaa-transactions-standard
calls · per 1 day
100000/1 day
Healthcare HIPAA Transactions — Standard plan, burst rate application-planhealthcare-hipaa-transactions-standard
calls · per 1 second
100/1 second
AWS Availity Payer List — Standard plan, daily quota application-planaws-availity-payer-list-standard
calls · per 1 day
1000000/1 day
AWS Availity Payer List — Standard plan, burst rate application-planaws-availity-payer-list-standard
calls · per 1 second
100/1 second

Policies

Client-side throttle against the published ceiling
Because there is no header signal, size a client-side token bucket to the plan ceiling (100 calls/sec on both published Standard plans) rather than reacting to the server.
Backoff strategy
Exponential backoff with jitter on 429 and 503. Honor Retry-After if one ever appears, but do not depend on it — it is not documented.
Cache the token
Tokens live 300 seconds with no refresh token. Cache and refresh at ~80% of life, serialized, so a burst does not stampede the token endpoint. See authentication/availity-authentication.yml.
Never retry a write to recover from a timeout
Availity ships no idempotency key. On 504 or a timeout on a submit, re-poll the transaction id instead of re-submitting, or risk duplicate adjudication. See conventions/availity-conventions.yml.
Trading partner agreement governs
Sustained production throughput must be authorized in the Availity trading-partner agreement; the plan tier is assigned during contracting, not self-selected.
HIPAA / PHI handling
All requests carry PHI. Clients must operate under a BAA with Availity and meet HIPAA Security Rule controls in addition to rate posture.

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

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