CrossRef Local - Local CrossRef Database
CrossRef Local provides fast, offline access to the CrossRef database with 167M+ scholarly works and full-text search via FTS5.
Getting Started
User Guide
API Reference
Key Features
167M+ Works: Complete CrossRef database locally
Full-Text Search: FTS5-powered search across titles, abstracts, and authors
Citation Networks: Explore citation relationships and build networks
Impact Factors: Pre-computed journal impact factors from OpenAlex
HTTP Relay: Access remote database via HTTP API
MCP Integration: AI agents can search via MCP server
Python API: Simple programmatic access
Quick Example
Python API:
from crossref_local import search, get
# Full-text search
results = search("machine learning", limit=10)
for work in results:
print(f"{work.title} ({work.year})")
# Get by DOI
work = get("10.1038/nature12373")
print(work.citation())
CLI:
# Search for papers
crossref-local search "neural networks" -n 20
# Search with impact factors
crossref-local search "CRISPR" --impact-factor
# Get by DOI
crossref-local search-by-doi 10.1038/nature12373
# Run HTTP relay server
crossref-local relay
MCP Server:
# Start MCP server for AI agent integration
crossref-local mcp start