SYSTRAN · Rate Limits

Systran Rate Limits

SYSTRAN does not publish a fixed public per-minute request-rate limit for the Translate API. Practical throughput is governed by the character allowance of your subscription (metered per character, starting with the 500,000-character free trial) rather than by a documented requests-per-second cap. Large or long-running documents are handled through the asynchronous file translation flow (async=true) and batches, which decouple job submission from a per-request size limit. Per-request text size, concurrency, and account-level throughput ceilings are enforced by SYSTRAN but are not published as fixed numeric values.

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

It captures 4 rate-limit definitions, measuring requests, characters, and jobs.

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

Tagged areas include Machine Translation, Translation, NLP, Rate Limiting, and Quotas.

4 Limits Throttle: 429
Machine TranslationTranslationNLPRate LimitingQuotas

Limits

Translate API Requests account
requests
not published
No fixed numeric request-rate limit is documented for the Translate API.
Character Allowance account
characters
per subscription (500,000 on the free trial)
Usage is metered per character; throughput is bounded by your plan's character allowance.
Synchronous Text Size request
characters
bounded per request
Very large content should use asynchronous file translation instead of a single synchronous text call.
Asynchronous File Jobs account
jobs
managed via batches
Large or long-running documents are submitted with async=true and polled by requestId; batches group multiple requests.

Policies

Asynchronous Processing
Submit large documents with async=true and poll /translation/file/status by requestId; group multiple jobs into a batch.
Backoff Strategy
Clients should implement exponential backoff with jitter and honor Retry-After on 429 responses.
Character Metering
Billing and effective throughput are driven by characters translated rather than a per-second request cap.

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

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.