ScaledThought MCP server
ScaledThought is an OpenAI-compatible API for open-weight models, set up
by your coding agent. This repository holds the public metadata for its remote MCP server: this README, the
MCP Registry entry (server.json, name com.scaledthought/mcp) and a
security policy. It contains no application source code.
- OpenAI-compatible API for open-weight models. Any OpenAI SDK works with the base URL
https://api.us.scaledthought.com/v1. - Your agent signs up from one pasted prompt. It creates the account and the API key itself.
- Prepaid credits, no subscription. The agent asks you to approve a top-up through an approval link; you pay only for what you use.
- Budgets per key.
- Prompts and completions are not stored or logged. Every response carries
x-st-data-retention: none. - US region live; Canada coming soon.
The models live in the US right now and their prices: https://scaledthought.com/pricing, or
npx -y scaledthought@latest models --live.
1. Get an API key
Paste this into your coding agent (Claude Code, Codex, Cursor, Cline, OpenCode and others):
Set me up on ScaledThought: scaledthought.com/go/org-ghrepo
Or run the CLI yourself:
npx -y scaledthought@latest init --region us --source org-ghrepo
init writes ST_API_KEY and ST_BASE_URL to ./.env. Usage is prepaid: before the first call, the agent prints an
approval link for you to add credits by card.
2. Connect the MCP server
Remote server, streamable HTTP, authenticated with your API key:
- URL:
https://api.us.scaledthought.com/mcp?source=org-ghrepo - Header:
Authorization: Bearer <your ScaledThought API key>
Claude Code (run it in the directory where init wrote ./.env):
set -a; . ./.env; set +a
claude mcp add --transport http scaledthought 'https://api.us.scaledthought.com/mcp?source=org-ghrepo' \
--header "Authorization: Bearer $ST_API_KEY"
A project .mcp.json (Claude Code fills in ${ST_API_KEY} from the environment: export it from ./.env before
starting Claude Code):
{
"mcpServers": {
"scaledthought": {
"type": "http",
"url": "https://api.us.scaledthought.com/mcp?source=org-ghrepo",
"headers": { "Authorization": "Bearer ${ST_API_KEY}" }
}
}
}
Cline (cline_mcp_settings.json; paste the ST_API_KEY value from ./.env in place of <your key>):
{
"mcpServers": {
"scaledthought": {
"type": "streamableHttp",
"url": "https://api.us.scaledthought.com/mcp?source=org-ghrepo",
"headers": { "Authorization": "Bearer <your key>" }
}
}
}
What the server does
It manages your ScaledThought account from the agent: account status and settings, API keys, budgets, usage,
prepaid top-ups (approval links), webhooks, model search and docs search. Inference itself goes to the
OpenAI-compatible API at https://api.us.scaledthought.com/v1.
Links
- Docs for agents: https://scaledthought.com/llms.txt
- CLI on npm:
scaledthought - Security and vulnerability disclosure: SECURITY.md
License
The text and metadata in this repository are MIT licensed (LICENSE). The ScaledThought name and logo are trademarks of ScaledThought Inc. and are not licensed.
