"Web search services that don't require an API key" matching MCP connectors:

Sovereign intelligence dossiers, daily briefings, RAG search, knowledge graph, codon optimizer.

Read-only MCP connector for The Dose Guy source-linked peptide and compound database. Search 260+ compounds, compare vendors and prices, inspect ranking evidence, and retrieve canonical page links. No authentication required.

Due diligence on life-science claims: omics, trials, gene therapy. Dimension by dimension.

Bioinformatics MCP for genomic variant interpretation, gene-disease evidence and literature.

Search biomedical papers, inspect publication records, and traverse citation or semantic graphs.

Official answers about Helena Bioinformatics and its products, with citations to public sources.

Protein research over UniProtKB: search by function, fetch curated records, map IDs, proteomes.

Search GBIF species taxonomy, occurrence records, datasets, and publishers.

Cited gene, variant (rsID) and CPIC drug–gene lookups for AI agents. Read-only, no key.

HLA nomenclature and match checks against a pinned IPD-IMGT/HLA release. No patient identifiers.

PK serum simulation, reconstitution math and compound data for agents. Paid tools $0.01 via x402.

Naturepedia Canonical DiscoveryA

com.robbiegeorgephotography

Search and resolve Naturepedia, Robbie's Razor, and GC-MRD-v2.0 canonical resources.

BioBTreeA

bio.sugi

A unified biomedical graph database that integrates 50+ primary data sources — genes, proteins, compounds, diseases, pathways, and clinical data — into a single queryable graph with billions of cross-reference edges. Its native MCP server gives LLMs direct access to structured, authoritative biomedical data, complementing their reasoning with reliable identifiers and up-to-date database content.

phasefolioA

com.phasefolio

Biotech rNPV/PoS engine for AI agents. Signed exports, evidence register, asset landscape.

Chemical molecular intelligence platform covering compound search, structure analysis, physicochemical property retrieval, and molecular interaction profiling.

DrugBank MCP — wraps the DrugBank Clinical API (api.drugbank.com)

UMLS MCP — wraps the NLM UMLS Terminology Services REST API (uts-ws.nlm.nih.gov/rest)

Public read-only MCP for the Y-chromosome haplogroup tree & Y-SNP resolution. 父系单倍群树查询与Y-SNP解析。

PubTator 3 MCP — biomedical entity search, literature search with entity

Linked life-science search: 43M+ papers, 1.2M+ trials, drugs, genes, FDA/EMA approvals, patents.