MCP Servers
osinmv/funciton-lookup-mcp
MCP server for AI agents to lookup function signatures from any API.
Our verdict
We have not reviewed osinmv/funciton-lookup-mcp yet
No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.
From the listing
About osinmv/funciton-lookup-mcp
An MCP server that lets AI agents look up function signatures from any API by indexing source files with universal ctags and storing them in SQLite. It supports multiple languages including Python, C, Go, C++, JS, Rust, and Java, and helps prevent hallucination on unknown or recently updated source files by providing accurate signatures.
Best for
Developers building AI agents that need accurate function signatures from existing codebases
Use cases
- Provide correct function signatures to an AI coding assistant during code generation
- Validate API calls in an agent by cross-referencing against indexed source files
- Reduce hallucination when an AI agent references functions from a large or unfamiliar codebase
Notes
3 stars on GitHub. Last updated 2025-11-10.
Pros
- Supports a wide range of programming languages via universal ctags
- Uses local SQLite for fast, offline signature lookups
- Directly addresses hallucination by returning real function signatures
Cons
- Requires source files to be present and indexed before use
- Depends on universal ctags, which may not cover all language features or custom syntax
- Limited to function signatures only, not full documentation or usage examples
Key facts
What we have checked
Not checked yet. Dated facts such as prices, releases and repository activity appear here once we have confirmed them from a source.
How to use
How to set it up
As the listing publishes it. We have not run this install.
Install
claude mcp add api-lookup $(pwd)/run.sh -s userTools exposed
universal ctagssqlite
Install
Add osinmv/funciton-lookup-mcp to your client
No install recipe yet. We write one for Claude Code, Claude Desktop, Cursor, VS Code, Codex and ChatGPT when the server is in the official MCP registry with a package or remote address we can use.
Until then, follow the project's own README, or the setup the listing publishes under How to set it up.
Works with
What osinmv/funciton-lookup-mcp connects to
No confirmed connections yet. A product appears here when the server's registry name, repo, homepage or name ties it to that product, and a client appears when we have an install recipe for it.
Alternatives
Alternatives to osinmv/funciton-lookup-mcp
| Record | Type | How we know | Checked |
|---|---|---|---|
| upstash/context7This is an alternative to it | MCP server | Named in the listing | Not dated |
Compare
Compare osinmv/funciton-lookup-mcp side by side
Sources
Where this comes from
No sources recorded yet. Each source we check is listed here with the date we checked it.
A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.
Changelog
What changed
No changes recorded yet. Releases, price changes and deprecations appear here, with their dates, once we track them for this record.
Open-source & AI alternatives
Swap-in tools that solve the same job. Weigh the trade-offs before you commit.
Pairs with
Other entries in the index that connect to this one. Click through to see the chain.
Get the free Developer’s Field Guide
A 27-page field guide to the AI coding workflow with Claude. Claude Code, MCP servers, the prompt patterns that work, and what to delegate. Free.
Enter your work email. We send it straight over, plus a few short notes worth knowing. Unsubscribe any time.