# Attester Oracle MCP server

Verify PyPI and npm packages, symbols, and version diffs against real artifacts. Free, no account.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-maminihds-attester-mcp
- Repository: https://github.com/maminihds/attester-mcp
- Website: https://attester.dev

## Install
- Endpoint: https://attester.dev/mcp/
- Auth: Not captured

## Setup notes
- Remote endpoint: https://attester.dev/mcp/

## Tools
- attester_package_exists (Package Exists (free oracle)) - Does this PyPI or npm package name really exist? Deterministic answer from the real published artifact, signed, with typosquat-adjacency flags on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt. Endpoint: https://attester.dev/mcp/
- attester_symbol_exists (Symbol Exists (free oracle)) - Does a function, class, or constant exist in this PyPI or npm package? Answer from the indexed artifact, with closest-match suggestions on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt. Endpoint: https://attester.dev/mcp/
- attester_symbol_signature (Symbol Signature (free oracle)) - Exact signature, structured params, docstring summary, and deprecation status for one symbol, resolved at a pinned version when given. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt. Endpoint: https://attester.dev/mcp/
- attester_version_diff (Version Diff (free oracle)) - Symbol-level diff between two pinned versions of one package: added, removed, changed signatures, new deprecations, and a breaking/additive/neutral classification. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt. Endpoint: https://attester.dev/mcp/

## Resources
Not captured

## Prompts
Not captured

## Metadata
- Owner: io.github.maminihds
- Version: 0.2.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 25, 2026
- Source: https://registry.modelcontextprotocol.io