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MCPNav listings

Showing 685–696 of 1,723 attributed MCPNav entries in the 2026-10-09 snapshot. This is a licensed subset of the category’s 10,400 deduplicated directory records.

Source coverage: MCP.so 8,970 · MCPNav 1,723. Catalog counts can overlap; the listing cards below contain only MCPNav records.

I

IWE

active

io.github.iwe-org/iwe

MCP provider published as IWE. Listed version: 0.26.1.

Directory description: Markdown knowledge base as agent memory. Runs against the notes directory it is started in.

Registry data grade FFFCohort score 9/100Raw points 60/100Version 0.26.1MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JL

J-Link MCP

active

io.github.Klievan/jlink-mcp

MCP provider published as J-Link MCP. Listed version: 0.6.0.

Directory description: Debug embedded firmware on real hardware: J-Link probes, Cortex-M faults, RTT logs, GDB.

Registry data grade FFFCohort score 31/100Raw points 60/100Version 0.6.0MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
J

Jacobian

active

io.github.morluto/jacobian

MCP provider published as Jacobian. Listed version: 0.23.0.

Directory description: Executable mathematics and independent verification for AI agents.

Registry data grade FFFCohort score 4/100Raw points 60/100Version 0.23.0MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JD

japan-data-mcp

Directory record

日本の公的データ（統計・法人・不動産）にAIからアクセスするMCPサーバー。e-Stat統計API・法人番号Web-API・不動産情報ライブラリAPIの3API統合。全国約1,700市区町村対応。

OtherMCPNav
JS

japan-seasons-mcp

Directory record

Live Japan seasonal travel MCP: sakura, autumn leaves, flowers, festivals, fruit farms, weather.

OtherMCPNav
J

javaperf

active

io.github.theSharque/javaperf

MCP provider published as javaperf. Listed version: 1.4.2.

Directory description: Java profiling MCP via jcmd/jfr/jps. Diagnose performance, analyze threads, inspect JFR recordings.

Registry data grade FFFCohort score 8/100Raw points 60/100Version 1.4.2MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
J—

Jaxonomy — hybrid dynamical systems on JAX

active

io.github.machinavitalis/jaxonomy

MCP provider published as Jaxonomy — hybrid dynamical systems on JAX. Listed version: 3.4.1.

Directory description: Build, simulate and calibrate JAX block-diagram models of hybrid dynamical systems.

Registry data grade FFFCohort score 23/100Raw points 60/100Version 3.4.1MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
J

JCAppleScript

active

io.github.johnnyclem/jcas-mcp

MCP provider published as JCAppleScript. Listed version: 2.0.0.

Directory description: Control macOS apps via AppleScript/JXA: sanitized commands for Messages, Mail, Finder, and more.

Registry data grade FFFCohort score 20/100Raw points 60/100Version 2.0.0MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JM

jCodemunch MCP

active

io.github.jgravelle/jcodemunch-mcp

MCP provider published as jCodemunch MCP. Listed version: 1.108.333.

Directory description: Token-efficient code exploration via tree-sitter AST parsing. 70+ languages, 86-99% token savings.

Registry data grade FFFCohort score 13/100Raw points 60/100Version 1.108.333MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JM

jDataMunch MCP

active

io.github.jgravelle/jdatamunch-mcp

MCP provider published as jDataMunch MCP. Listed version: 1.31.13.

Directory description: Tabular data retrieval. Index CSV/Excel, query rows, aggregate. 99%+ savings vs raw file reads.

Registry data grade FFFCohort score 20/100Raw points 60/100Version 1.31.13MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JM

jDocmunch MCP

active

io.github.jgravelle/jdocmunch-mcp

MCP provider published as jDocmunch MCP. Listed version: 1.145.2.

Directory description: Section-level doc search for .md, .rst, .adoc, .ipynb, .html, .yaml, .json, and OpenAPI specs.

Registry data grade FFFCohort score 19/100Raw points 60/100Version 1.145.2MCPOtherMCPNav
Rating detail · five criteria
  • registry freshness and status · 15 points
  • registry identity · 25 points
  • registry metadata · 0 points
  • runtime definition · 5 points
  • structure and url validation · 15 points
RepositoryRegistry source
JM

jean-memory

Directory record

Premium memory consistent across all AI applications.

OtherMCPNav

Source: MCPNav public API · License and upstream attribution. MCPNav-added fields are CC BY 4.0; upstream source fields retain their listed licenses.

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