Ollang MCP in Replit

Replit is a cloud-based IDE with an AI Agent that can build, run, and iterate on code autonomously. With Ollang MCP, Replit Agent gains translation capabilities — enabling localization workflows without leaving your development environment.

Setup

Open your Replit project

Go to replit.com and open the project where you want to use Ollang MCP.

Add the MCP configuration

In your project’s .replit file, add an [mcp] section with the Ollang server:

.replit

[mcp.servers.ollang]
url = "https://mcp.ollang.com/mcp"
transport = "sse"

Alternatively, create a .replit-mcp.json file at the project root:

.replit-mcp.json

{
  "mcpServers": {
    "ollang": {
      "url": "https://mcp.ollang.com/mcp",
      "transport": "sse"
    }
  }
}

Authenticate

When Replit Agent first uses an Ollang tool, you will be prompted to authenticate. A browser tab will open for Ollang sign-in. Complete authentication and return to Replit.

Use Ollang in Replit Agent

Open the Agent tab in Replit and describe your translation task. The agent will use Ollang MCP tools automatically.

Use Cases

Localize your app during prototyping

While building an app in Replit, translate your UI strings on the fly:

Read the file src/i18n/en.json and upload it to Ollang. Create
document translation orders for French, Spanish, and Portuguese.
Once complete, save the translated files as fr.json, es.json, and pt.json
in the same directory.

Translate README and documentation

Take the content of README.md and upload it to Ollang for document
translation into Spanish and French. Save the results as README.es.md
and README.fr.md.

Build a multilingual app faster

I'm building a language-learning app. Create an Ollang custom instruction
called "Language Learning UI" with the guideline: "Use simple, clear
language. Avoid idioms. Prefer formal register." Then use it to translate
all strings in src/locales/en.json to Arabic, Chinese, and Hindi.

Check the status of ongoing translation orders

List all my current Ollang orders. Show me which ones are completed
and which are still in progress.

Multi-Server Configuration

Use Ollang alongside other tools in Replit Agent:

.replit-mcp.json

{
  "mcpServers": {
    "ollang": {
      "url": "https://mcp.ollang.com/mcp",
      "transport": "sse"
    },
    "notion": {
      "command": "npx",
      "args": ["-y", "@notionhq/notion-mcp-server"],
      "env": {
        "NOTION_TOKEN": "${NOTION_TOKEN}"
      }
    }
  }
}

Store API tokens as Replit Secrets (not hardcoded values) and reference them with ${SECRET_NAME} in your MCP config. This keeps credentials secure across forks and collaborators.

​Ollang MCP in Replit

​Setup

​Use Cases

​Localize your app during prototyping

​Translate README and documentation

​Build a multilingual app faster

​Check the status of ongoing translation orders

​Multi-Server Configuration

Ollang MCP in Replit

Setup

Use Cases

Localize your app during prototyping

Translate README and documentation

Build a multilingual app faster

Check the status of ongoing translation orders

Multi-Server Configuration