MCP Server in Bash — Watchlist

MCP100 Assessment

Watchlist / Tracking

Why we’re tracking it

The Bash SDK's compatibility is tied to MCP specification revisions and shell execution behavior; a follow-up can verify older-client interoperability and any HTTP or authentication changes.

Reviewed Oct 5, 2026 · Documentation review; complete setup workflow not independently tested

Best fit

Building lightweight MCP servers in pure Bash with minimal runtime dependencies.

What we know

Pure-Bash SDK/example targeting MCP 2026-07-28 with stdio and Streamable HTTP, dynamic tool dispatch and schema validation.

Maintenance / activity evidence

Observed Sep 9, 2026 (UTC)docs: add maintainer + contact so readers have somewhere to go

Tracking evidence observed Oct 5, 2026. These dated signals do not establish current maintenance. Reviewed enrichment confidence: high.

Activity source · commits ↗Activity source · releases ↗

Verification gaps / watch-outs

Installation and comprehensive security have not been independently audited.
Application-defined. Writes: Depends on authored Bash tools.
Authentication not yet verified.
Sensitive access: Depends on authored tools

Core SDK is small, but a Bash tool can execute arbitrary host commands; HTTP should stay loopback or behind a secure proxy.

Security source · repository notice ↗

Full authority, access and evidence limits are available in Review context and Access & risk.

Popularity

514 repository stars

Stars observed Sep 25, 2026.

Do not overwrite existing reviewed stars/download metrics with nulls from this enrichment batch.

All limitations / Review context

Does the current Bash SDK remain interoperable with older MCP clients while supporting the latest documented revision and auth behavior?

The bounded assessment reviewed the official README, repository notices, security policy path, and security page for known material public-tracking blockers. No such blocker was identified. This is a public-tracking assessment, not an installation safety certification.

Core SDK is small, but a Bash tool can execute arbitrary host commands; HTTP should stay loopback or behind a secure proxy.
Application-defined.
Local tool functions determine data access.
Reviewed write actions: Depends on authored Bash tools
Sensitive access: Depends on authored tools
Installation, client compatibility and comprehensive security have not been independently audited. Authentication and access depend on the configured services.
A project-specific SECURITY.md policy was not available at the fetched official path; the review remains limited to published repository notices.
No installation, runtime, client matrix, or complete tool-contract audit was performed in this review.
The fetched official SECURITY.md path returned HTTP 404; it was not treated as positive evidence.
It is an SDK/example, not one fixed service.
HTTP path has no built-in TLS/auth and should not be exposed directly.
Tool security depends entirely on functions the developer writes.

Original activity observations

2026-09-09T17:19:10Z: docs: add maintainer + contact so readers have somewhere to go

Technical identity

github.com/muthuishere/mcp-server-bash-sdk

Exact implementation source: https://github.com/muthuishere/mcp-server-bash-sdk ↗
Reviewed resource type: SDK
Repository identity: muthuishere/mcp-server-bash-sdk
Service endpoint: http://127.0.0.1:3000/mcp

Evidence & Sources

Evidence basis: Recorded source evidence
Setup runtime verification: Not independently runtime-tested by MCP100 for this setup workflow.

Reviewed Oct 5, 2026 · Latest source observation Oct 7, 2026

GitHub repository ↗
muthuishere/mcp-server-bash-sdk
Recorded repository material and project history.

Setup · Watchlist

SDK setup

Publisher instructions.

Source evidence observed Oct 14, 2026.

Additional setup details required — see the specific gaps below.

Install / connect
Publisher instructions
**Bash SDK, not a published ready-to-connect server.** Clone the repository and create/run its example Bash MCP server after installing prerequisites such as `jq`; then register the example server script path in your MCP client. HTTP binding may require `socat`.
package install · Publisher instructions · Review before use
```
git clone https://github.com/muthuishere/mcp-server-bash-sdk
cd mcp-server-bash-sdk
chmod +x mcpserver_core.sh moviemcpserver.sh
```
Configure / authenticate
Publisher instructions
This is a Bash SDK/framework: jq is required; users must create/configure their own server and choose stdio or HTTP bindings. It is not a generic prebuilt MCP server binary.
Check connection
Suggested check
Run the SDK sample server and inspect JSON-RPC tool discovery via an MCP client or Inspector; merely sourcing Bash library is not proof of server connection.
Remove / uninstall / revoke
Suggested check
Bash SDK: stop demo Bash MCP listener and unregister *its particular script path* from the host. No standalone MCP server package is installed by the SDK alone.
Distinguish client registration removal from software uninstall, persistent data deletion and provider OAuth/API-key revocation.

Official Documentation & Sources

What it does

Pure-Bash SDK/example targeting MCP 2026-07-28 with stdio and Streamable HTTP, dynamic tool dispatch and schema validation.

Capability: Developer Tools
Resource type: SDK
Best fit: Building lightweight MCP servers in pure Bash with minimal runtime dependencies.

Representative uses

Build simple Bash MCP wrappers
Expose tools over stdio
Run local Streamable HTTP
Study current stateless MCP implementation patterns

Limitations

It is an SDK/example, not one fixed service.
HTTP path has no built-in TLS/auth and should not be exposed directly.
Tool security depends entirely on functions the developer writes.

Reviewed access

Access & risk

Review the exact access boundary before connecting this MCP to accounts, credentials, or sensitive data.

Authentication: Not documented in the reviewed sources
Permissions: Application-defined.
Data handling: Local tool functions determine data access.
Cost: free
Risk and cautions: Core SDK is small, but a Bash tool can execute arbitrary host commands; HTTP should stay loopback or behind a secure proxy.

Access scope and cautions

Write actions: Depends on authored Bash tools
Sensitive access: Depends on authored tools
Risk level: moderate

FAQ

Based on reviewed evidence as of 2026-10-07. Watchlist tracking is not a recommendation or a security certification.

Which tasks are documented for this implementation?

The reviewed tasks include: Build simple Bash MCP wrappers; Expose tools over stdio; Run local Streamable HTTP; Study current stateless MCP implementation patterns.

What setup and authentication are documented?

Recorded installation/entrypoint step: git clone https://github.com/muthuishere/mcp-server-bash-sdk. Recorded endpoint: http://127.0.0.1:3000/mcp. Recorded transport: stdio, streamable_http. Prerequisites: Bash 3.2+; jq; socat/netcat for HTTP. These are the documented setup details, not a claim that installation or client compatibility was independently tested. Authentication: No built-in HTTP auth documented.

Can it modify data or perform write operations?

Documented write actions include: Depends on authored Bash tools. Recorded permission boundary: Application-defined.

What data-handling boundary should I consider?

Local tool functions determine data access. Recorded sensitive-access context: Depends on authored tools.

What limitations and risks should I check before use?

Core SDK is small, but a Bash tool can execute arbitrary host commands; HTTP should stay loopback or behind a secure proxy. It is an SDK/example, not one fixed service. HTTP path has no built-in TLS/auth and should not be exposed directly. Tool security depends entirely on functions the developer writes. A project-specific SECURITY.md policy was not available at the fetched official path; the review remains limited to published repository notices.

Is this an official MCP?

muthuishere is listed as Community implementation in MCP100’s current evidence.