ELSA · Rate Limits

Elsa Rate Limits

The ELSA API is partner/B2B and gated behind an issued API token. ELSA's public documentation describes constraints on maximum audio duration per request (which vary by plan — roughly 20s on Standard and up to 45s scripted / 150s unscripted on Premium) but does not publish account-level request or concurrency rate-limit numbers. Specific throttling thresholds are not reconciled in this artifact and are governed by partner agreements.

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

It captures 4 rate-limit definitions, measuring audio_seconds, requests, and connections.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Speech Assessment, Pronunciation, Speech Recognition, Language Learning, and AI.

4 Limits Throttle: 429
Speech AssessmentPronunciationSpeech RecognitionLanguage LearningAIRate LimitingQuotasThrottling

Limits

Max Audio Duration Per Request (Standard) request
audio_seconds
~20s scripted / ~20s unscripted
Plan-dependent maximum recording length accepted per scoring call.
Max Audio Duration Per Request (Premium) request
audio_seconds
~45s scripted / ~150s unscripted
Plan-dependent maximum recording length accepted per scoring call.
Requests Per Minute account
requests
see partner agreement
No public per-account RPM published; governed by partner contract.
Concurrent Streams account
connections
see partner agreement
WebSocket realtime concurrency is not publicly documented.

Policies

Token-Gated Access
Access requires an ELSA-issued API token; quotas are tied to the partner account.
Backoff Strategy
Clients should implement retry with backoff and honor any 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

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

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