Union.ai · Rate Limits

Unionai Rate Limits

The Union / Flyte control plane (FlyteAdmin) governs work primarily through concurrency limits rather than published per-second API rate limits. The most visible quota is concurrent actions (the number of task actions a tenant can run simultaneously) - the Team plan documents a ceiling on the order of 1,000 concurrent actions, with Enterprise plans negotiated far higher (50,000+). FlyteAdmin also applies pagination limits/tokens on its list endpoints and standard gRPC/HTTP error handling. Specific per-endpoint request rates are not published and are not reconciled in this artifact.

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

It captures 4 rate-limit definitions, measuring actions, results, days, and clusters.

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

Tagged areas include AI, ML, Orchestration, Workflows, and Serverless.

4 Limits Throttle: 429
AIMLOrchestrationWorkflowsServerlessRate LimitingQuotasThrottling

Limits

Concurrent Actions tenant
actions
~1,000 (Team); 50,000+ negotiated (Enterprise)
Maximum task actions running simultaneously; primary throughput governor.
List Pagination Limit request
results
see provider documentation
List endpoints accept a `limit` and return an opaque `token` for the next page.
Data Retention tenant
days
30 (Team) / 365 (Enterprise)
Execution and metadata retention window, not a request rate but a stored-data quota.
Clusters tenant
clusters
1 (Team) / 3+ (Enterprise)
Number of compute clusters attached to the control plane.

Policies

Concurrency Governing
Throughput is shaped by concurrent-action ceilings per plan rather than fixed RPM/TPM caps.
Pagination
Use the returned token and a sane limit when listing projects, workflows, tasks, launch plans, and executions.
Backoff Strategy
Clients should implement exponential backoff with jitter on 429/503 and honor Retry-After when present.

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

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