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Nxs

by · github.com/ironystock/nxs

Pipe-friendly CLI for Anthropic Messages API with MCP server passthrough

Unclaimed MIT last commit 6 months ago ai
InstallView source
56Fair

Scored 3 months ago · breakdown

About Nxs

Nxs is an MCP server published by ironystock in the AI category: pipe-friendly CLI for Anthropic Messages API with MCP server passthrough. It has been installed 0 times through Conduid.

The repository has 1 stars and 0 forks, with the last commit 6 months ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues (0) before depending on it in production.

Install

Install
npx nxs

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

README

nxs

A pipe-friendly CLI that sends conversations to the Anthropic Messages API with MCP server passthrough.

nxs works in two modes: an interactive chat TUI for multi-turn conversations, and a pipe mode that reads from stdin for scripting and automation. MCP servers are passed directly to the API — no local MCP client needed.

Requirements

Install

go install github.com/ironystock/nxs/cmd/nxs@latest

Or build from source:

git clone https://github.com/ironystock/nxs.git
cd nxs
go build -o bin/nxs cmd/nxs/main.go

Setup

Set your API key as an environment variable:

export ANTHROPIC_API_KEY="sk-ant-..."

Usage

Interactive chat

nxs

Launches a chat TUI. Type messages and press Enter to send. Shift+Enter for newlines. Ctrl+C or Esc to quit.

Pipe mode

echo "explain this error" | nxs

Reads stdin, sends it to the API, and prints the response to stdout.

Combine stdin with a query:

cat main.go | nxs "find bugs in this code"

git diff | nxs "write a commit message for this diff"

Output raw JSON instead of text:

echo "hello" | nxs --json

Flags

Flag Description
--model Override the model (default: claude-sonnet-4-5-20250514)
--json Print full API response as JSON (pipe mode only)
--profile Config profile (not yet implemented)

How MCP works in nxs

nxs passes MCP server configurations directly to the Anthropic Messages API using the mcp_servers field. The API connects to MCP servers and executes tools server-side. When the API responds with tool use blocks, nxs automatically handles the multi-turn loop until the final response is ready.

License

MIT

README mirrored from the source repository 3 months ago. The original is authoritative.

Questions

About Nxs

How do I install Nxs?

Run npx nxs, then add the server to your MCP client's configuration. Conduid has recorded 0 installs, so the command is known to work with current clients.

Is Nxs safe to use with an AI agent?

Its trust score is 56 out of 100 (fair). It passes 0 of 1 static security checks; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Nxs still maintained?

The last commit was 6 months ago, with 0 open issues. That's long enough that you should check whether the maintainer is responding to issues before depending on it.