Build, solve, and analyze RASON optimization, simulation, data science, and decision models
Connect Runs on your machine
claude mcp add rason-mcp-server -e RASON_BEARER_TOKEN=<RASON_BEARER_TOKEN> -e RASON_SERVER_URL=<RASON_SERVER_URL> -e RASON_RESULT_ARRAY_LIMIT=<RASON_RESULT_ARRAY_LIMIT> -e RASON_RESULT_SIZE_LIMIT=<RASON_RESULT_SIZE_LIMIT> -e RASON_REQUEST_TIMEOUT=<RASON_REQUEST_TIMEOUT> -- npx -y @frontlinesystems/[email protected]{
"mcpServers": {
"rason-mcp-server": {
"command": "npx",
"args": [
"-y",
"@frontlinesystems/[email protected]"
],
"env": {
"RASON_BEARER_TOKEN": "<RASON_BEARER_TOKEN>",
"RASON_SERVER_URL": "<RASON_SERVER_URL>",
"RASON_RESULT_ARRAY_LIMIT": "<RASON_RESULT_ARRAY_LIMIT>",
"RASON_RESULT_SIZE_LIMIT": "<RASON_RESULT_SIZE_LIMIT>",
"RASON_REQUEST_TIMEOUT": "<RASON_REQUEST_TIMEOUT>"
}
}
}
}{
"mcpServers": {
"rason-mcp-server": {
"command": "npx",
"args": [
"-y",
"@frontlinesystems/[email protected]"
],
"env": {
"RASON_BEARER_TOKEN": "<RASON_BEARER_TOKEN>",
"RASON_SERVER_URL": "<RASON_SERVER_URL>",
"RASON_RESULT_ARRAY_LIMIT": "<RASON_RESULT_ARRAY_LIMIT>",
"RASON_RESULT_SIZE_LIMIT": "<RASON_RESULT_SIZE_LIMIT>",
"RASON_REQUEST_TIMEOUT": "<RASON_REQUEST_TIMEOUT>"
}
}
}
}{
"servers": {
"rason-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@frontlinesystems/[email protected]"
],
"env": {
"RASON_BEARER_TOKEN": "<RASON_BEARER_TOKEN>",
"RASON_SERVER_URL": "<RASON_SERVER_URL>",
"RASON_RESULT_ARRAY_LIMIT": "<RASON_RESULT_ARRAY_LIMIT>",
"RASON_RESULT_SIZE_LIMIT": "<RASON_RESULT_SIZE_LIMIT>",
"RASON_REQUEST_TIMEOUT": "<RASON_REQUEST_TIMEOUT>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
RASON_BEARER_TOKENRequired, secret | RASON API bearer token. Required for model management, solving, and diagnostics. Obtain at https://rason.com/. |
RASON_SERVER_URLOptional | Base URL of the RASON REST API. /api is appended automatically. |
RASON_RESULT_ARRAY_LIMITOptional | Maximum array/dataFrame rows before solver results are summarized. |
RASON_RESULT_SIZE_LIMITOptional | Maximum solve-result size (in characters) before truncation. |
RASON_REQUEST_TIMEOUTOptional | HTTP request timeout in milliseconds. |
Details
| Package | @frontlinesystems/[email protected] (NPM, stdio) |
| Package | https://github.com/FrontlineSystems/rason-mcp-server/releases/download/v2026.5.5/rason-mcp-server.mcpb (MCPB, stdio) |
| First published | 27 May 2026 |
| Last updated | 27 May 2026 |
| Registry name | io.github.FrontlineSystems/rason-mcp-server |
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