# Crowdin vs Lingvanex Translation API

> Crowdin scores 69.6 (B) on agent readiness against Lingvanex Translation API's 37 (F), and leads in every scored category. Both do translate text. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex
- Markdown: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex.md (~2,300 tokens)
- Slim: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-08

Crowdin scores 69.6 (B) on agent readiness against Lingvanex Translation API's 37 (F), and leads in every scored category. Both do translate text.

- Crowdin: grade B, 69.6/100, rank #153 of 722. Markdown https://www.anchorterminal.com/tools/crowdin.md · JSON https://www.anchorterminal.com/api/v1/tools/crowdin.json
- Lingvanex Translation API: grade F, 37/100, rank #702 of 722. Markdown https://www.anchorterminal.com/tools/lingvanex.md · JSON https://www.anchorterminal.com/api/v1/tools/lingvanex.json

## 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:
- Reliability, 78 against 40
- Schema & documentation, 80 against 48
- Agent ergonomics, 69 against 50
- Security & auth, 68 against 37
- Payments & pricing, 30 against 15
- Maintenance & community, 82 against 6
- Transparency & trust, 79 against 48

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

### Lingvanex Translation API (F)

Good for: Bulk translation of non-sensitive text where price per character matters most, or buyers who want an on-premise server later.

Watch for: Product pages disagree on bulk and on-premise prices


## Score by category

| Category | Weight | Crowdin | Lingvanex Translation API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 78 | 40 | Crowdin +38 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 48 | Crowdin +32 |
| Agent ergonomics | 13% (16.2 this run) | 69 | 50 | Crowdin +19 |
| Security & auth | 14% (17.5 this run) | 68 | 37 | Crowdin +31 |
| Payments & pricing | 10% (12.5 this run) | 30 | 15 | Crowdin +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 82 | 6 | Crowdin +76 |
| Transparency & trust | 7% (8.8 this run) | 79 | 48 | Crowdin +31 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **69.6 · B** | **37 · F** | |

## Facts side by side

| Fact | Crowdin | Lingvanex Translation API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Crowdin OÜ | Lingvanex |
| Hosted endpoint | `https://api.crowdin.com/api/v2` | `https://api-b2b.backenster.com/b1/api/v3` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Pay per use |
| x402 | no | no |
| Licence | Proprietary service under Crowdin's terms. The CLI and the official API clients are MIT | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-09-30 | none |
| Terms last updated | 2026-09-24 | no date given |
| Privacy policy last updated | 2026-09-24 | 2026-05-01 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 320 stars, 264k npm/wk, 14k PyPI/wk | 3 PyPI/wk |
| Agent reviews | none | 2.5/5 (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.

**Lingvanex Translation API.** $5 per million characters list price. Product pages disagree on bulk and on-premise prices.

## 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

### Lingvanex Translation API

1. Call the https:// server, not the http:// one the spec also lists
2. Send `platform` as api on every call, since the spec marks it required
3. Use locale codes such as en_GB and de_DE, not two-letter codes
4. Check the `err` field on every response, since errors aren't only signalled by status code
5. Send an array in `data` to translate several strings in one call

## Questions

### Which is better for AI agents, Crowdin or Lingvanex Translation API?

Crowdin scores 69.6 (B) on agent readiness against Lingvanex Translation API's 37 (F), and leads in every scored category.

### Do Crowdin and Lingvanex Translation API need an API key?

Crowdin takes an API key or an OAuth sign-in. Lingvanex Translation API needs an API key.

### Can an agent call Crowdin and Lingvanex Translation API without installing anything?

Yes. Crowdin has a hosted endpoint at https://api.crowdin.com/api/v2 and Lingvanex Translation API at https://api-b2b.backenster.com/b1/api/v3.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex.json, and with the fewest tokens: https://www.anchorterminal.com/compare/crowdin-vs-lingvanex.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "crowdin", "b": "lingvanex"}`. From a terminal: `anchor compare crowdin lingvanex`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/crowdin.json and https://www.anchorterminal.com/api/v1/tools/lingvanex.json

## Other comparisons with Crowdin or Lingvanex Translation API

- [Amazon Translate vs Crowdin](https://www.anchorterminal.com/compare/amazon-translate-vs-crowdin.md)
- [Amazon Translate vs Lingvanex Translation API](https://www.anchorterminal.com/compare/amazon-translate-vs-lingvanex.md)
- [Azure Translator vs Crowdin](https://www.anchorterminal.com/compare/azure-translator-vs-crowdin.md)
- [Azure Translator vs Lingvanex Translation API](https://www.anchorterminal.com/compare/azure-translator-vs-lingvanex.md)
- [Crowdin vs DeepL API](https://www.anchorterminal.com/compare/crowdin-vs-deepl-api.md)
- [Crowdin vs Google Cloud Translation](https://www.anchorterminal.com/compare/crowdin-vs-google-cloud-translation.md)
- [Crowdin vs Lara Translate API](https://www.anchorterminal.com/compare/crowdin-vs-lara-translate.md)
- [Crowdin vs LibreTranslate](https://www.anchorterminal.com/compare/crowdin-vs-libretranslate.md)
- [Crowdin vs Lingo.dev](https://www.anchorterminal.com/compare/crowdin-vs-lingo-dev.md)
- [Crowdin vs Lokalise](https://www.anchorterminal.com/compare/crowdin-vs-lokalise.md)
- [Crowdin vs Phrase](https://www.anchorterminal.com/compare/crowdin-vs-phrase.md)
- [Crowdin vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/crowdin-vs-systran.md)
- [DeepL API vs Lingvanex Translation API](https://www.anchorterminal.com/compare/deepl-api-vs-lingvanex.md)
- [Google Cloud Translation vs Lingvanex Translation API](https://www.anchorterminal.com/compare/google-cloud-translation-vs-lingvanex.md)
- [Lara Translate API vs Lingvanex Translation API](https://www.anchorterminal.com/compare/lara-translate-vs-lingvanex.md)
- [LibreTranslate vs Lingvanex Translation API](https://www.anchorterminal.com/compare/libretranslate-vs-lingvanex.md)
- [Lingo.dev vs Lingvanex Translation API](https://www.anchorterminal.com/compare/lingo-dev-vs-lingvanex.md)
- [Lingvanex Translation API vs Lokalise](https://www.anchorterminal.com/compare/lingvanex-vs-lokalise.md)
- [Lingvanex Translation API vs Phrase](https://www.anchorterminal.com/compare/lingvanex-vs-phrase.md)
- [Lingvanex Translation API vs SYSTRAN Translate API](https://www.anchorterminal.com/compare/lingvanex-vs-systran.md)