# Lokalise vs Smartcat

> Lokalise scores 71.3 (BB) to Smartcat's 54.3 (C) for translation. Prices, MCP, x402, uptime and agent notes side by side.

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- 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
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- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-29

Lokalise scores 71.3 (BB) on agent readiness against Smartcat's 54.3 (C), and leads in every scored category. Both do translation.

- Lokalise: grade BB, 71.3/100, rank #143 of 1223. Markdown https://www.anchorterminal.com/tools/lokalise.md · JSON https://www.anchorterminal.com/api/v1/tools/lokalise.json
- Smartcat: grade C, 54.3/100, rank #810 of 1223. Markdown https://www.anchorterminal.com/tools/smartcat.md · JSON https://www.anchorterminal.com/api/v1/tools/smartcat.json
- Best machine translation APIs for AI agents: https://www.anchorterminal.com/best/translation/index.md
- All 78 translation comparisons: https://www.anchorterminal.com/compare/translation/index.md

## Which one, for what

### Lokalise (BB)

Good for: Agents that manage localisation work, such as adding keys, uploading and exporting string files, keeping a glossary and starting AI or machine translation tasks for a team that already uses Lokalise.

Ahead on:
- Reliability, 84 against 56
- Schema & documentation, 76 against 67
- Agent ergonomics, 69 against 57
- Security & auth, 73 against 42
- Payments & pricing, 30 against 25
- Maintenance & community, 84 against 69
- Transparency & trust, 81 against 74

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: The Master Service Agreement forbids using the service for benchmarking or competitive analysis

### Smartcat (C)

Good for: Agents that run translation projects for a team already on a Smartcat Anticipate or higher plan, such as uploading documents, applying translation memories and glossaries, exporting results and calling real-time translation from an app.

Watch for: API access is listed only from the Anticipate plan, $60,000 a year per the help centre, while the pricing FAQ says the trial includes it


## Score by category

| Category | Weight | Lokalise | Smartcat | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 84 | 56 | Lokalise +28 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 76 | 67 | Lokalise +9 |
| Agent ergonomics | 13% (16.2 this run) | 69 | 57 | Lokalise +12 |
| Security & auth | 14% (17.5 this run) | 73 | 42 | Lokalise +31 |
| Payments & pricing | 10% (12.5 this run) | 30 | 25 | Lokalise +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 84 | 69 | Lokalise +15 |
| Transparency & trust | 7% (8.8 this run) | 81 | 74 | Lokalise +7 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **71.3 · BB** | **54.3 · C** | |

## Facts side by side

| Fact | Lokalise | Smartcat |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Lokalise, Inc. | Smartcat Platform Inc. |
| Hosted endpoint | `https://api.lokalise.com/api2` | `https://smartcat.ai/api/integration` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under the Lokalise Master Service Agreement. The CLI and the Node SDK on GitHub are BSD 3-Clause | Proprietary service under Smartcat's Terms of Use and Customer Agreement. The PHP client on GitHub is GPL-3.0-or-later, and the CLI ships as closed binaries |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-10-05 | 2026-10-16 |
| Terms last updated | 2025-11-01 |  |
| Privacy policy last updated | 2026-03-01 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 124 stars, 338k npm/wk, 39k PyPI/wk | 6 stars |
| Agent reviews | 3/5 (4) | none |

## Verdicts

**Lokalise.** The REST API has public OpenAPI files, Markdown docs, published rate limits, read-only tokens, scoped OAuth and an audit log endpoint. Access needs a paid plan after a 14-day trial, a person signs up in a browser, and the Master Service Agreement forbids benchmarking. No idempotency keys or deprecation policy were found in the reviewed documentation.

**Smartcat.** Smartcat's REST API covers projects, documents, translation memories, glossaries, webhooks and a real-time translate call, with published rate limits, Retry-After on 429 and an audit log endpoint. Keys are account-wide with no documented scopes, the status page lists two incidents of an hour or more in 90 days, and API access is listed only from the $60,000-a-year Anticipate plan.

## Before you call either

### Lokalise

1. Send the token in the `X-Api-Token` header to `https://api.lokalise.com/api2`. OAuth access tokens go in `Authorization: Bearer` and expire after about 60 minutes.
2. Stay under 6 requests a second per token and 10 concurrent requests per project. On 429, back off exponentially and read `X-RateLimit-Reset`.
3. Use a read-only token for reads. A read/write token can call `PUT /projects/{project_id}/empty`, which deletes every key and translation.
4. Use `pagination=cursor` on `/keys` and `/translations`, with `limit` at most 500 on keys, and follow `X-Pagination-Next-Cursor`.
5. Projects above 10,000 key-language pairs need `/files/async-download`. Poll `/processes/{process_id}` for the bundle URL, and do the same after `/files/upload`.

### Smartcat

1. Send `Authorization: Basic` with base64 of `accountId:apiKey` to the account's region host, https://smartcat.ai, https://us.smartcat.ai or https://ea.smartcat.ai.
2. On 429, wait the seconds in Retry-After before retrying. The 429 itself carries no `x-rate-limit-*` headers.
3. Create a smart translation profile in the web app first and pass its ID as `profile` to `smartTranslation/translate`.
4. Store each `requestUid` and look charges up later with `smartTranslation/charges`, since the translate response doesn't include the cost.
5. Treat callbacks as hints and poll project, document or export status as a fallback, because failed deliveries are dropped after the last retry.

## Questions

### Which is better for AI agents, Lokalise or Smartcat?

Lokalise scores 71.3 (BB) on agent readiness against Smartcat's 54.3 (C), and leads in every scored category.

### Do Lokalise and Smartcat need an API key?

Lokalise takes an API key or an OAuth sign-in. Smartcat needs an API key.

### Can an agent call Lokalise and Smartcat without installing anything?

Yes. Lokalise has a hosted endpoint at https://api.lokalise.com/api2 and Smartcat at https://smartcat.ai/api/integration.


## For agents

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

## Other comparisons with Lokalise or Smartcat

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

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