Turjuman

Open-source, self-hosted translation management — managed by your AI agent.

Turjuman is a lightweight, open-source alternative to commercial translation-management SaaS. Instead of a heavy web dashboard, you manage projects, keys, locales and translations through an MCP server connected to Claude Code (or any MCP client/agent). A thin developer CLI handles the deterministic file work — pulling/pushing locale files in your repo and CI.

It runs on a serverless AWS stack (Lambda + DynamoDB) that costs ~nothing to host and fits comfortably in the free tier. No always-on servers, no Cognito.

Claude Code / agent ──Streamable HTTP + API key──┐
Developer CLI / CI ──REST + API key──────────────┤
                                                 ▼
                          Lambda Function URLs ──► DynamoDB (single table)

Why MCP-first?

Translation management is mostly conversation + judgement: "add a French locale", "translate the untranslated checkout strings", "what does cart.empty say in German?". An agent with the right tools does this naturally. The connected LLM does the translating itself — there's no separate machine-translation engine to pay for or configure.

The CLI exists for the things you should not hand to an LLM: deterministically exporting a JSON/YAML file, downloading translations, and syncing them in CI.

Related MCP server: i18n Agent

Features (v1)

• MCP server with 36 tools: projects, locales, keys (with descriptions/context), translations, bulk fill, review workflow, and full user/member/API-key administration (incl. key revocation).

• First-class RBAC. Global roles (OWNER/ADMIN/MEMBER) + per-project roles (MANAGER/EDITOR/DEVELOPER/VIEWER). High-privilege users manage everyone else's access.

• Glossary + translation memory, and webhooks (HMAC-signed, via DynamoDB Streams) for change events.

• API-key auth — simple bearer tokens, stored hashed. (OAuth/Cognito is a future option.)

• Developer CLI — login, init, pull, push, build with multi-target config and adapters for JSON (nested/flat), YAML, Flutter ARB, Java .properties, CSV, Android strings.xml, and iOS .strings/.stringsdict (ICU-canonical plurals converted to each format's native form).

• DynamoDB single-table design, on-demand billing. Multi-tenant-ready (orgId on every record).

Repository layout

Try it locally (no AWS)

The fastest way to see Turjuman work — everything runs against DynamoDB Local, no cloud account needed:

npm install && npm run build
docker run -d --rm -p 8000:8000 amazon/dynamodb-local

# create the table + first owner, and print your API key
node scripts/dev-setup.mjs you@example.com "You"

# start the servers (each in its own shell), pointed at DynamoDB Local
export AWS_ENDPOINT_URL_DYNAMODB=http://localhost:8000 TURJUMAN_TABLE=Turjuman
export AWS_ACCESS_KEY_ID=local AWS_SECRET_ACCESS_KEY=local AWS_REGION=us-east-1
node packages/mcp-server/dist/local.js   # MCP  on http://localhost:3000
node packages/api/dist/local.js          # REST on http://localhost:4000

Point your MCP client at http://localhost:3000/ with the printed API key (see below) and start talking to it.

Self-host on AWS

Status: the SAM stack is conventional but has not yet been verified end-to-end against a live AWS account (see ROADMAP). Use the local path above to evaluate; treat the cloud deploy as beta and please report issues.

1. Deploy to your AWS account

One command self-bootstraps the CDK environment, deploys the CloudFormation stack from pre-bundled Lambda assets, and creates your first owner — no SAM CLI, no clone needed (see Self-hosting for options):

npx @turjuman/aws-deploy deploy   # interactive; prints McpUrl/ApiUrl and your API key

Self-hosting ships as a separate @turjuman/aws-deploy package (binary turjuman-aws-deploy) so the day-to-day turjuman developer CLI stays a lean, AWS-free install.

2. Your first owner + API key

turjuman-aws-deploy deploy creates the first owner at the end and prints the API key once (also saved to ~/.turjuman/auth.json, so you're logged in). It refuses to create a second owner once the org has users, so re-running deploy to update the stack is safe.

3. Connect Claude Code (MCP)

Add to your .mcp.json (see .mcp.json.example):

{
  "mcpServers": {
    "turjuman": {
      "type": "http",
      "url": "<McpUrl>",
      "headers": { "Authorization": "Bearer <your-api-key>" }
    }
  }
}

Keep your key out of version control. .mcp.json is often committed — prefer referencing the token via an environment variable / secret manager rather than pasting the literal key. If a key ever leaks, revoke it immediately with the revoke_api_key tool.

Then just ask: "Create a project called Web App with base locale en, add fr and es, and translate everything into French."

4. Sync files in your repo (CLI)

npx turjuman login --url <ApiUrl> --key <your-api-key>
npx turjuman init --project <proj_id> --format json-nested --path "locales/{locale}.json"
npx turjuman pull     # write locale files from Turjuman
npx turjuman push     # upload source keys / translations

Documentation

The full documentation lives in docs/ and is published as a documentation site with Mintlify — one source that serves human readers, external agents (Mintlify auto-generates llms.txt / llms-full.txt and an "open in Claude/ChatGPT" menu per page), and the agents working in this repo. Start here:

• Introduction · Quickstart (run locally, no AWS) · Self-hosting (deploy on AWS)

• Architecture · Roles & permissions · Lifecycle

• Translate with MCP · Sync with the CLI · Quality checks · Webhooks

• Reference: MCP tools · CLI commands · File formats · QA checks

• Contributing · Roadmap

Development

npm install
npm run build
npm test            # unit tests (hermetic)

# integration tests against an emulated AWS (LocalStack DynamoDB):
npm run e2e:up && npm run test:integration && npm run e2e:down

# full deployed end-to-end (SAM stack on LocalStack: Lambda Function URLs +
# the real DynamoDB Streams -> webhook flow). Just needs Docker:
npm run test:e2e

See Contributing for the full testing guide (unit, LocalStack integration, and deployed end-to-end), which also runs in CI.

License

MIT