foro (Python)

The Python SDK and CLI for foro.sh — the fastest path from "I want to build an MCP server" to a deployed https://<slug>.foro.sh URL.

Quickstart
CLI
Runtime
foro.yaml reference
Example
Develop this package

Quickstart

uvx foro init my-server && cd my-server
uvx foro dev

foro init scaffolds a working FastMCP server plus a foro.yaml; foro dev runs it exactly as foro.sh will and confirms it would pass the platform's health check. Once it looks good:

git init && git add -A && git commit -m "init" && gh repo create --push

Then, on the foro.sh dashboard: sign in with GitHub, pick the repo, add any secrets your tools need, and deploy.

CLI

Install once with uv tool install foro, or run ad-hoc with uvx foro ... — no need to add it to your project's own dependencies.

Command	What it does
`foro init [name]`	Scaffold a new project, or add `foro.yaml` to an existing one (run with no argument). `--yes` takes every default without prompting, for CI and coding agents
`foro check [path]`	Validate a repo against foro.sh's deploy contract before you push
`foro dev [path]`	Run the server locally exactly as foro.sh will, and confirm it would pass the health check

foro check mirrors the platform's own validation rule for rule, so a repo it passes will deploy and one it flags will not — the same reason code, surfaced locally instead of as a 60-second health-check timeout.

Runtime

One import, used from your server's entrypoint:

from fastmcp import FastMCP
import foro

mcp = FastMCP("my-server")

@mcp.tool
def add(a: int, b: int) -> int:
    return a + b

if __name__ == "__main__":
    foro.run(mcp)  # streamable HTTP, host 0.0.0.0, port $MCP_PORT - identical locally and deployed

Function	What it does
`foro.run(server, *, port=None)`	The one correct way to start a server for foro.sh. Accepts any FastMCP-shaped server (standalone `fastmcp.FastMCP`, `mcp.server.fastmcp.FastMCP`, or a low-level `Server`) — it's duck-typed, not tied to a specific class.
`foro.secret(name)`	Read a required secret from the environment, raising a dashboard-actionable error if it's missing. Set secrets in your project's Secrets tab on the dashboard; they arrive as env vars at deploy time.

Bare foro (what a deployed container installs — no [cli] extra) stays dependency-free, so a deployed container never pulls in CLI tooling it doesn't use.

`foro.yaml` reference

Every deployable repo carries one, at its root:

name: my-server          # required, ^[a-z0-9-]{3,48}$ - display name only, not the URL slug
entrypoint: server.py    # required, relative path, run as `uv run <entrypoint>`
build_path: .            # optional, default "." - dir holding pyproject.toml + uv.lock
python_version: "3.12"   # optional, one of 3.11 / 3.12 / 3.13
port: 8000               # optional, default 8000 - the port your server must listen on

At runtime the container gets MCP_PORT (matching port above) and every project secret as its own env var. Public traffic arrives at https://<slug>.foro.sh, so your server must listen on 0.0.0.0:$MCP_PORT — which is exactly what foro.run() does for you.

Example

foro-sh/todo-mcp is a small stateful todo-list server built the way described above — every new foro.sh workspace gets a deployed copy of it to poke at before deploying anything of your own.

Develop this package

uv sync
uv run pytest

License
- OSI Approved :: MIT License
Operating System
- OS Independent
Programming Language
- Python :: 3

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