This work has moved to https://github.com/joshrotenberg/jpx which includes a full [JMESPath Specification](https://jmespath.org/specification.html)
Jmespath Extensions MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. This work has moved to https://github.com/joshrotenberg/jpx which includes a full JMESPath Specification implementation with some performance improvements over the official crate, the full.
Once Jmespath Extensions is connected, these are the calls the assistant has available:
Rust — The Rust tool exposed by this serverjmespath-extensions on PyPI is all you need. Most clients run it directly, so configuration is a few lines and a restart.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Jmespath Extensions's toolset — Rust — is a fair guide to whether it matches your workflow. It is maintained by joshrotenberg; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| Rust | The Rust tool exposed by this server. |
{
"mcpServers": {
"jmespath-extensions": {
"command": "uvx",
"args": ["jmespath-extensions"]
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
Kill hallucinated APIs — version-accurate, up-to-date library documentation injected straight into context.
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
GitHub's official server — repos, issues, pull requests, Actions and code security, straight from your assistant.
Issue tracking at the speed of conversation — Linear's official hosted server with OAuth and zero install.
Local repository surgery — status, diffs, commits, branches and history for any repo on disk.
Timezone sanity for AI — current time anywhere and correct conversions, without the model doing date math.