Alternatives to Letter AI

Same category, ordered by trust score.

Z
Zotero MCP
77Good
Search, read, annotate, and add to your Zotero research library, local or web.
Registry54yyyu5.4K stars
H
haiku.rag
74Good
Local-first agentic RAG with citations - hybrid search, reranking, multimodal document retrieval
Registryggozad629 stars
M
M3 Memory
70Good
Local-first, cloud-friendly memory — 100+ tools, 99.2% LongMemEval-S retrieval@8, hybrid search.
Registryskynetcmd29 stars
C
company-enrichment
69Good
YouTube data for AI agents: channels, videos, transcripts, comments, search. Video research.
RegistryRemotesuperagnt5 stars1 tools
D
doc-scraper
69Good
Crawl documentation sites into local corpora agents can search, read, and diff fully offline.
Registrysriram-pr107 stars
G
Gnews
66Good
GNews MCP — Global news search via GNews API (gnews.io)
RegistryRemotepipeworx-io0 stars13/wk