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The fastest way to install. Downloads the latest release for your platform: 
curl -fsSL https://isthmus.dev/install.sh | sh
Or download manually from GitHub Releases — pick the archive for your OS and architecture, extract it, and place the isthmus binary somewhere in your PATH.

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Option 2: go install

Requires Go 1.25+. 
go install github.com/guillermoBallester/isthmus/cmd/isthmus@latest
The binary is placed in $GOPATH/bin (usually ~/go/bin). Make sure this directory is in your PATH.

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Option 3: Clone and build

git clone https://github.com/guillermoBallester/isthmus.git
cd isthmus
make build
The binary is written to ./bin/isthmus. Move it to a directory in your PATH or reference the full path in your MCP client config.

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Option 4: Docker

docker build -t isthmus .
docker run --rm -e DATABASE_URL="postgres://user:pass@host.docker.internal:5432/mydb" isthmus
Docker is mainly useful for testing. Most MCP clients expect a local binary they can spawn directly — use one of the other methods for production use.

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Verify the installation

# Check version
isthmus --version

# Validate config and test database connectivity
DATABASE_URL="postgres://user:pass@localhost:5432/mydb" isthmus --dry-run
The --dry-run flag validates your configuration, connects to the database, pings it, then exits. It is the fastest way to confirm everything is wired up correctly.