Solosearch

noodle.helena.bio

Noodle is Helena Bioinformatics' free biomedical literature discovery platform for researchers, clinicians reviewing literature, and research software developers. It supports topic and identifier search, PMID, DOI and PMCID record inspection, related-paper discovery, and bounded citation or semantic literature graph exploration. Its public read-only MCP server lets compatible AI agents search and traverse source-linked biomedical literature without authentication. Semantic similarity and graph proximity are discovery signals, not proof of causality or clinical recommendations.

Koply - E-Commerce Search Engine

Koply is a site search solution for European e-commerce stores, offering instant typo-tolerant results, AI-powered synonym suggestions, and zero-results recovery. Hosted in Sweden with fixed monthly pricing and full GDPR compliance — no per-search billing.

Linguee

Linguee is a bilingual dictionary and translation search engine that provides real-world example sentences from the web to show how words and phrases are used in context across multiple language pairs.

Directory Of Open Access Books

DOAB is a discovery service for peer-reviewed open access books, aggregating metadata from academic publishers worldwide. It helps researchers and readers find freely available scholarly monographs across disciplines.