# Mcpx

> 苹果 MCP 工具 ✅

- **Type:** MCP server
- **Install:** `agentstack add mcp-celados-mcpx`
- **Verified:** Pending review
- **Seller:** [celados](https://agentstack.voostack.com/s/celados)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [celados](https://github.com/celados)
- **Source:** https://github.com/celados/mcpx

## Install

```sh
agentstack add mcp-celados-mcpx
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# mcpx

mcpx is a command line tool that turns registered MCP servers into an
agent-friendly command surface.

It keeps MCP server registrations in a global user registry, discovers tool
schemas, handles OAuth where possible, and exposes each MCP server as a root
command:

```bash
mcpx posthog projects-get
mcpx sentry search-issues --input '{"query":"is:unresolved"}'
```

mcpx is designed for agents. The command surface is intentionally schema-first,
stable, and explicit: tool calls pass input through `--input`, while mcpx's own
control commands live under the `@` namespace.

## Requirements

- Bun
- macOS, Linux, or any environment that can run Bun executables

## Install

Install the latest release:

```bash
curl -fsSL https://raw.githubusercontent.com/celados/mcpx/main/install.sh | bash
```

By default, the installer downloads the executable JS bundle from GitHub Releases
and installs it to `~/.local/bin/mcpx`.

Set `MCPX_INSTALL_DIR` to choose another install directory.

## Add MCP Servers

Register MCP servers globally:

```bash
mcpx @add --name posthog --url https://mcp.posthog.com/mcp
mcpx @add --name sentry --url https://mcp.sentry.dev/mcp
mcpx @add --name cf-docs --url https://docs.mcp.cloudflare.com/mcp
mcpx @add --name cf-bindings --url https://bindings.mcp.cloudflare.com/mcp
mcpx @add --name cf-observability --url https://observability.mcp.cloudflare.com/mcp
mcpx @add --name browser --url http://127.0.0.1:9000/mcp
```

> [browser-os](https://www.browseros.com/) is an agent-native browser built on
> Chrome. It exposes a local MCP server that lets agents control the browser
> directly — navigating pages, extracting content, and interacting with web UIs.

mcpx stores server configuration in:

```text
~/.agents/mcpx/servers.json
```

OAuth tokens and client secrets are stored separately in the global token cache:

```text
~/.agents/mcpx/tokens.json
```

Project directories do not need MCP config files. A project should decide which
global servers are relevant by using schema selectors or a generated skill.

## Call Tools

Call tools through the server command:

```bash
mcpx   --input ''
```

Examples:

```bash
mcpx posthog projects-get --input '{}'
mcpx sentry whoami --input '{}'
```

For complex payloads, use `@-` with a heredoc to keep the input readable:

```bash
mcpx cf-graphql graphql_query --input @-  --url 
mcpx @add --name  --url  --bearer env:
mcpx @add --name  --transport stdio --command  --args 
mcpx @remove --name 
mcpx @refresh
mcpx @daemon status
mcpx @daemon stop
mcpx @daemon server
mcpx @skill
```

Server names cannot start with `@`.

HTTP is the default transport. Pass bearer credentials with repeatable
`--bearer` values. `env:NAME` reads a token from an environment variable at
runtime; literal values are accepted but are stored in the registry:

```bash
mcpx @add --name posthog --url https://mcp.posthog.com/mcp --bearer env:POSTHOG_TOKEN
mcpx @add --name posthog --url https://mcp.posthog.com/mcp \
  --bearer env:POSTHOG_TOKEN_A \
  --bearer env:POSTHOG_TOKEN_B
```

Multiple bearer credentials use round-robin selection by default. Stdio servers
are local process registrations; pass each process argument with `--args`, or use
`--input` when you need structured `args` / `env`:

```bash
mcpx @add --input '{
  "name": "open-design",
  "transport": "stdio",
  "command": "node",
  "args": ["/path/to/open-design/apps/daemon/dist/cli.js", "mcp"],
  "env": { "OPEN_DESIGN_TOKEN": "..." }
}'
```

`@refresh` checks every registered MCP server, repairs OAuth state first,
refreshes cached tool schemas after auth is ready, and reports servers that
still require re-authentication. It may open a browser for interactive OAuth.

Stdio servers are called through `mcpxd`, a user-local daemon that reuses stdio
MCP sessions across CLI invocations. `mcpxd` starts on demand, keeps idle stdio
servers warm, and can be inspected or stopped with `mcpx @daemon status` and
`mcpx @daemon stop`. The daemon process is started through the explicit
`mcpx @daemon server` subcommand. HTTP servers continue to use the direct client path.

## Authentication

Bearer auth is configured explicitly with `--bearer`. Prefer `env:NAME`
references so secrets stay out of the registry. `${NAME}` is also accepted when
passed through the shell literally, for example `--bearer '${POSTHOG_TOKEN}'`.
When several bearer credentials are registered, mcpx advances a local
round-robin cursor before each HTTP request.

When `@add` detects OAuth, mcpx tries to complete authentication immediately.
For OAuth servers that support dynamic client registration, mcpx registers a
client automatically.

For OAuth servers that do not support dynamic client registration, such as
Slack, mcpx prompts for a manual `client_id` and `client_secret`. These providers
usually require a preconfigured redirect URL. mcpx uses:

```text
http://127.0.0.1:65245/callback
```

Add and save that exact Redirect URL in the provider app settings before
continuing the prompt.

When an OAuth token is close to expiry, mcpx refreshes it before calling the MCP
tool and then continues the original command.

Tool calls use a 5 minute request timeout by default. Set
`MCPX_TOOL_CALL_TIMEOUT_MS` when a remote MCP server legitimately needs longer.

mcpx buffers MCP subscription notifications and returns them with the next daemon
tool-call result by default. Set `MCPX_NOTIFICATION_MODE=discard` to ignore those
notifications for a command; accepted values are `buffer` and `discard`.

## Output

mcpx optimizes output for humans and agents by default:

- text MCP content is printed directly
- JSON text content is rendered as YAML
- non-text content is saved to a temporary file and printed as `file saved `
- supplemental MCP `structuredContent` is printed as `$structured` only when it
  is not already represented by the primary content

Use `--raw` to preserve raw server text output:

```bash
mcpx posthog projects-get --raw
```

## Project Skills

Generate a project-local skill that tells agents which global MCP servers to use:

```bash
mcpx @skill --servers posthog,sentry
```

This writes:

```text
.agents/skills/mcpx/SKILL.md
```

The generated skill instructs agents to discover tools with focused schema
selectors and call MCP tools through mcpx.

For temporary agent guidance without writing `.agents/skills`, print a one-server
skill to stdout:

```bash
mcpx @skill --show slack
```

## Skill

General mcpx skill definition lives at `skills/mcpx/SKILL.md`.

## License

MIT

## Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [celados](https://github.com/celados)
- **Source:** [celados/mcpx](https://github.com/celados/mcpx)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** yes
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: flagged — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-celados-mcpx
- Seller: https://agentstack.voostack.com/s/celados
- Browse the marketplace: https://agentstack.voostack.com/browse

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