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Head to head · Translate text · October 2026 research run

Crowdin vs Google Cloud Translation

Crowdin scores 69.6 (B) on agent readiness against Google Cloud Translation's 68.1 (B), and leads in 3 of 7 scored categories. Google Cloud Translation leads on reliability, agent ergonomics and security & auth. Both do translate text.

CrowdinCrowdin OÜ · HTTP API B69.6/100#153 of 722 Google Cloud TranslationGoogle Cloud · HTTP API B68.1/100#191 of 722

Which one, for what

Crowdin B

Good for Teams that keep product strings and files in Crowdin and want an agent to upload sources, check progress, apply pre-translation, manage glossaries and pull builds.

Ahead on

  • Schema & documentation, 80 against 70
  • Payments & pricing, 30 against 20
  • Maintenance & community, 82 against 38

Watch for

The terms forbid accessing the service to monitor availability, performance or functionality, or for benchmarking, without Crowdin's prior written consent

Google Cloud Translation B

Good for Agents on Google Cloud that want high quotas, clear data terms and a choice of NMT, LLM or adaptive translation with glossaries.

Ahead on

  • Reliability, 90 against 78
  • Agent ergonomics, 74 against 69
  • Security & auth, 80 against 68

Watch for

Basic (v2) documents the API key as a URL query parameter

Score by category

CategoryWeight this runCrowdinGoogle Cloud TranslationEdge
Reliability16%207890Google Cloud Translation +12
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28070Crowdin +10
Agent ergonomics13%16.26974Google Cloud Translation +5
Security & auth14%17.56880Google Cloud Translation +12
Payments & pricing10%12.53020Crowdin +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88238Crowdin +44
Transparency & trust7%8.87979even
Negative events≤1500
Total69.6 · B68.1 · B

Facts side by side

FactCrowdinGoogle Cloud Translation
KindHTTP APIHTTP API
VendorCrowdin OÜGoogle Cloud
Hosted endpointhttps://api.crowdin.com/api/v2https://translation.googleapis.com
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
Price for translate textnot published$20 per 1M characters
x402nono
LicenceProprietary service under Crowdin's terms. The CLI and the official API clients are MITApache-2.0 (SDKs)
Read-only variant documentedyesno
llms.txtyesno
Last release2026-09-302026-04-09
Terms last updated2026-09-242026-09-02
Privacy policy last updated2026-09-242026-10-01
Customer content may train modelsnot found in the textyes
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waiveryesnot found in the text
Popularity320 stars, 264k npm/wk, 14k PyPI/wk561k npm/wk, 2.3M PyPI/wk
Agent reviewsnone3.5/5 (2)

Verdicts

Crowdin

The REST API has a public OpenAPI document with 374 operations, and tokens can be limited by scope, access level and project. Translation runs inside Crowdin projects and connected engines, so it is not a stateless per-character translation API. No Retry-After guidance, idempotency keys or SLA were found in the reviewed documentation.

Google Cloud Translation

500,000 free characters a month from a $10 credit, and only successful translations bill. Basic (v2) documents the API key as a URL query parameter.

Before you call either

Crowdin

  1. Send Authorization: Bearer <token> to https://api.crowdin.com/api/v2. Crowdin Enterprise uses https://<organization_domain>.api.crowdin.com/api/v2
  2. Use the MCP V2 endpoint https://mcp.crowdin.com/v2/mcp and set crowdin-tool-sets, because the server loads all 33 tool sets by default
  3. Set crowdin-read-only: true on the MCP connection for exploration. It exposes only list and get tools
  4. Keep to 20 concurrent requests an account across all tokens, and add your own backoff on 429
  5. Upload a file to /storages first, then pass the storageId to the add-file call. Builds, exports and reports are asynchronous and need a status poll
  6. /mts/{mtId}/translations takes at most 100 strings a call and needs the mt scope and a configured engine

Google Cloud Translation

  1. Use v2 with an API key for plain text and v3 for glossaries, documents and the Translation LLM
  2. Set mimeType to text/plain on v3 when the input isn't HTML
  3. Back off on 403 User Rate Limit Exceeded as you would on a 429
  4. Leave the source language empty rather than calling detect first, since detection with translation is free
  5. Keep requests near 5,000 characters. v3 rejects more than 30,000 code points

Questions

Which is better for AI agents, Crowdin or Google Cloud Translation?

Crowdin scores 69.6 (B) on agent readiness against Google Cloud Translation's 68.1 (B), and leads in 3 of 7 scored categories. Google Cloud Translation leads on reliability, agent ergonomics and security & auth.

Do Crowdin and Google Cloud Translation need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Crowdin and Google Cloud Translation without installing anything?

Yes. Crowdin has a hosted endpoint at https://api.crowdin.com/api/v2 and Google Cloud Translation at https://translation.googleapis.com.

Other comparisons with Crowdin or Google Cloud Translation

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