Narsil Mcp

Name: Narsil Mcp
Author: postrv

narsil-mcp · by postrv

Rust MCP server for comprehensive code intelligence - 90 tools, 32 languages, security scanning, call graphs, and more

154 34/wk 0 tools GitHub npm

No known CVEs

Apache-2.0 license

Actively maintained

Last commit 17d ago

Works with most clients

Transport: stdio, sse, http

0 tools

Grade F

Edit this pageView history

Developer Tools Security

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "narsil-mcp": {
      "args": [
        "--repos",
        ".",
        "--git",
        "--call-graph"
      ],
      "command": "narsil-mcp"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/narsil-mcp)](https://mcppedia.org/s/narsil-mcp)

Read me

What Narsil Mcp does

The blazing-fast, privacy-first MCP server for deep code intelligence

Test This Server

This server supports HTTP transport. Be the first to test it — help the community know if it works.

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Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

61/100across 5 weighted dimensions

How we score →

0255075100

−39

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked narsil-mcp against OSV.dev.

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Narsil Mcp safe to use?: Narsil Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.
How do I install Narsil Mcp?: Narsil Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with Narsil Mcp?: Narsil Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Narsil Mcp actively maintained?: Narsil Mcp is actively maintained — last commit was 17 days ago. It has 154 GitHub stars.

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Community

Discussion

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Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Feature	narsil-mcp	XRAY	Serena	GitHub MCP
Languages	32	4	30+ (LSP)	N/A
Neural Search	Yes	No	No	No
Taint Analysis	Yes	No	No	No
SBOM/Licenses	Yes	No	No	Partial
Offline/Local	Yes	Yes	Yes	No
WASM/Browser	Yes	No	No	No
Call Graphs	Yes	Partial	No	No
Type Inference	Yes	No	No	No

Feature

narsil-mcp

XRAY

Serena

GitHub MCP

Languages

30+ (LSP)

N/A

Neural Search

Yes

Taint Analysis

Yes

SBOM/Licenses

Yes

Partial

Offline/Local

Yes

WASM/Browser

Yes

Call Graphs

Yes

Partial

Type Inference

Yes

Key Features

Code Intelligence - Symbol extraction, semantic search, call graph analysis

Neural Semantic Search - Find similar code using embeddings (Voyage AI, OpenAI)

Security Analysis - Taint analysis, vulnerability scanning, OWASP/CWE coverage

Supply Chain Security - SBOM generation, dependency auditing, license compliance

Advanced Analysis - Control flow graphs, data flow analysis, dead code detection

Why Choose narsil-mcp?

Written in Rust - Blazingly fast, memory-safe, single binary (~30MB)

Tree-sitter powered - Accurate, incremental parsing for 32 languages

Zero config - Point at repos and go

MCP compliant - Works with Claude, Cursor, VS Code Copilot, Zed, and any MCP client

Privacy-first - Fully local, no data leaves your machine

Parallel indexing - Uses all cores via Rayon

Smart excerpts - Expands to complete syntactic scopes

Security-first - Built-in vulnerability detection and taint analysis

Neural embeddings - Optional semantic search with Voyage AI or OpenAI

WASM support - Run in browser with WebAssembly build

Real-time streaming - Results as indexing progresses for large repos

Supported Languages

Language	Extensions	Symbols Extracted
Rust	`.rs`	functions, structs, enums, traits, impls, mods
Python	`.py`, `.pyi`	functions, classes
JavaScript	`.js`, `.jsx`, `.mjs`	functions, classes, methods, variables
TypeScript	`.ts`, `.tsx`	functions, classes, interfaces, types, enums
Go	`.go`	functions, methods, types
C	`.c`, `.h`	functions, structs, enums, typedefs
C++	`.cpp`, `.cc`, `.hpp`	functions, classes, structs, namespaces
Java	`.java`	methods, classes, interfaces, enums
C#	`.cs`	methods, classes, interfaces, structs, enums, delegates, namespaces
Bash	`.sh`, `.bash`, `.zsh`	functions, variables
Ruby	`.rb`, `.rake`, `.gemspec`	methods, classes, modules
Kotlin	`.kt`, `.kts`	functions, classes, objects, interfaces
PHP	`.php`, `.phtml`	functions, methods, classes, interfaces, traits
Swift	`.swift`	classes, structs, enums, protocols, functions
Verilog/SystemVerilog	`.v`, `.vh`, `.sv`, `.svh`	modules, tasks, functions, interfaces, classes
Scala	`.scala`, `.sc`	classes, objects, traits, functions, vals
Lua	`.lua`	functions, methods
Haskell	`.hs`, `.lhs`	functions, data types, type classes
Elixir	`.ex`, `.exs`	modules, functions
Clojure	`.clj`, `.cljs`, `.cljc`, `.edn`	lists (basic AST)
Dart	`.dart`	functions, classes, methods
Julia	`.jl`	functions, modules, structs
R	`.R`, `.r`, `.Rmd`	functions
Perl	`.pl`, `.pm`, `.t`	functions, packages

Language

Extensions

Symbols Extracted

Rust

.rs

functions, structs, enums, traits, impls, mods

Python

.py, .pyi

functions, classes

JavaScript

.js, .jsx, .mjs

functions, classes, methods, variables

TypeScript

.ts, .tsx

functions, classes, interfaces, types, enums

.go

functions, methods, types

.c, .h

functions, structs, enums, typedefs

C++

.cpp, .cc, .hpp

functions, classes, structs, namespaces

Java

.java

methods, classes, interfaces, enums

.cs

methods, classes, interfaces, structs, enums, delegates, namespaces

Bash

.sh, .bash, .zsh

functions, variables

Ruby

.rb, .rake, .gemspec

methods, classes, modules

Kotlin

.kt, .kts

functions, classes, objects, interfaces

PHP

.php, .phtml

functions, methods, classes, interfaces, traits

Swift

.swift

classes, structs, enums, protocols, functions

Verilog/SystemVerilog

.v, .vh, .sv, .svh

modules, tasks, functions, interfaces, classes

Scala

.scala, .sc

classes, objects, traits, functions, vals

Lua

.lua

functions, methods

Haskell

.hs, .lhs

functions, data types, type classes

Elixir

.ex, .exs

modules, functions

Clojure

.clj, .cljs, .cljc, .edn

lists (basic AST)

Dart

.dart

functions, classes, methods

Julia

.jl

functions, modules, structs

.R, .r, .Rmd

functions

Perl

.pl, .pm, .t

functions, packages

Frequently Asked Questions

Is Narsil Mcp safe to use?

Narsil Mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under Apache-2.0.

How do I install Narsil Mcp?

Narsil Mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with Narsil Mcp?

Narsil Mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Narsil Mcp actively maintained?

Narsil Mcp is actively maintained — last commit was 17 days ago. It has 154 GitHub stars.

Feature	narsil-mcp	XRAY	Serena	GitHub MCP
Languages	32	4	30+ (LSP)	N/A
Neural Search	Yes	No	No	No
Taint Analysis	Yes	No	No	No
SBOM/Licenses	Yes	No	No	Partial
Offline/Local	Yes	Yes	Yes	No
WASM/Browser	Yes	No	No	No
Call Graphs	Yes	Partial	No	No
Type Inference	Yes	No	No	No

Feature

narsil-mcp

XRAY

Serena

GitHub MCP

Languages

30+ (LSP)

N/A

Neural Search

Yes

Taint Analysis

Yes

SBOM/Licenses

Yes

Partial

Offline/Local

Yes

WASM/Browser

Yes

Call Graphs

Yes

Partial

Type Inference

Yes

Key Features

Code Intelligence - Symbol extraction, semantic search, call graph analysis

Neural Semantic Search - Find similar code using embeddings (Voyage AI, OpenAI)

Security Analysis - Taint analysis, vulnerability scanning, OWASP/CWE coverage

Supply Chain Security - SBOM generation, dependency auditing, license compliance

Advanced Analysis - Control flow graphs, data flow analysis, dead code detection

Why Choose narsil-mcp?

Written in Rust - Blazingly fast, memory-safe, single binary (~30MB)

Tree-sitter powered - Accurate, incremental parsing for 32 languages

Zero config - Point at repos and go

MCP compliant - Works with Claude, Cursor, VS Code Copilot, Zed, and any MCP client

Privacy-first - Fully local, no data leaves your machine

Parallel indexing - Uses all cores via Rayon

Smart excerpts - Expands to complete syntactic scopes

Security-first - Built-in vulnerability detection and taint analysis

Neural embeddings - Optional semantic search with Voyage AI or OpenAI

WASM support - Run in browser with WebAssembly build

Real-time streaming - Results as indexing progresses for large repos

Supported Languages

Language	Extensions	Symbols Extracted
Rust	`.rs`	functions, structs, enums, traits, impls, mods
Python	`.py`, `.pyi`	functions, classes
JavaScript	`.js`, `.jsx`, `.mjs`	functions, classes, methods, variables
TypeScript	`.ts`, `.tsx`	functions, classes, interfaces, types, enums
Go	`.go`	functions, methods, types
C	`.c`, `.h`	functions, structs, enums, typedefs
C++	`.cpp`, `.cc`, `.hpp`	functions, classes, structs, namespaces
Java	`.java`	methods, classes, interfaces, enums
C#	`.cs`	methods, classes, interfaces, structs, enums, delegates, namespaces
Bash	`.sh`, `.bash`, `.zsh`	functions, variables
Ruby	`.rb`, `.rake`, `.gemspec`	methods, classes, modules
Kotlin	`.kt`, `.kts`	functions, classes, objects, interfaces
PHP	`.php`, `.phtml`	functions, methods, classes, interfaces, traits
Swift	`.swift`	classes, structs, enums, protocols, functions
Verilog/SystemVerilog	`.v`, `.vh`, `.sv`, `.svh`	modules, tasks, functions, interfaces, classes
Scala	`.scala`, `.sc`	classes, objects, traits, functions, vals
Lua	`.lua`	functions, methods
Haskell	`.hs`, `.lhs`	functions, data types, type classes
Elixir	`.ex`, `.exs`	modules, functions
Clojure	`.clj`, `.cljs`, `.cljc`, `.edn`	lists (basic AST)
Dart	`.dart`	functions, classes, methods
Julia	`.jl`	functions, modules, structs
R	`.R`, `.r`, `.Rmd`	functions
Perl	`.pl`, `.pm`, `.t`	functions, packages

Language

Extensions

Symbols Extracted

Rust

.rs

functions, structs, enums, traits, impls, mods

Python

.py, .pyi

functions, classes

JavaScript

.js, .jsx, .mjs

functions, classes, methods, variables

TypeScript

.ts, .tsx

functions, classes, interfaces, types, enums

.go

functions, methods, types

.c, .h

functions, structs, enums, typedefs

C++

.cpp, .cc, .hpp

functions, classes, structs, namespaces

Java

.java

methods, classes, interfaces, enums

.cs

methods, classes, interfaces, structs, enums, delegates, namespaces

Bash

.sh, .bash, .zsh

functions, variables

Ruby

.rb, .rake, .gemspec

methods, classes, modules

Kotlin

.kt, .kts

functions, classes, objects, interfaces

PHP

.php, .phtml

functions, methods, classes, interfaces, traits

Swift

.swift

classes, structs, enums, protocols, functions

Verilog/SystemVerilog

.v, .vh, .sv, .svh

modules, tasks, functions, interfaces, classes

Scala

.scala, .sc

classes, objects, traits, functions, vals

Lua

.lua

functions, methods

Haskell

.hs, .lhs

functions, data types, type classes

Elixir

.ex, .exs

modules, functions

Clojure

.clj, .cljs, .cljc, .edn

lists (basic AST)

Dart

.dart

functions, classes, methods

Julia

.jl

functions, modules, structs

.R, .r, .Rmd

functions

Perl

.pl, .pm, .t

functions, packages

Narsil Mcp

Install in your client

What Narsil Mcp does

Test This Server

Why this score

61/100across 5 weighted dimensions

Security

Reviews

Frequently Asked Questions

Similar servers

Discussion

Narsil Mcp

Install in your client

What Narsil Mcp does

Test This Server

narsil-mcp

Why narsil-mcp?

Key Features

Why Choose narsil-mcp?

Supported Languages

Why this score

61/100across 5 weighted dimensions

Security

Reviews

Frequently Asked Questions

Similar servers

Discussion

narsil-mcp

Why narsil-mcp?

Key Features

Why Choose narsil-mcp?

Supported Languages