Multi-Search

Search 8 knowledge domains in one query — live web, 250M academic papers, 150M scholarly works, arXiv preprints, 36M biomedical papers, chemical compounds, government datasets, and dictionary. Goes beyond web search into academic, scientific, and public data via x402.

Multi Domain Search

Search across 8 knowledge domains from a single agent — not 8 web engines, 8 completely different databases. One query can search the live web, academic papers, preprints, biomedical literature, chemical compounds, scholarly works, government datasets, and the dictionary simultaneously.

How to call endpoints

bash {baseDir}/scripts/search.sh METHOD ENDPOINT '{"key":"value"}'

Search strategy

When the user asks you to search for something, decide which domains are relevant and fan out across them. Don't search every domain for every query — be smart about it.

General knowledge questions — start with web_search and web_qna, add scholarly_search if the topic has academic depth.

Scientific or medical questions — lead with biomedical_search and papers_search, supplement with preprints_search for cutting-edge work, then web_search for recent news coverage.

Chemistry questions — start with chemistry_compound, then biomedical_search for related drug/pharma research, then papers_search for fundamental science.

Data and statistics — check demographics_datasets for government data, scholarly_search for published studies with data, web_search for recent reports.

Word meanings and language — use dictionary_define and dictionary_synonyms for precise definitions, then web_search for usage context.

Comprehensive research — fan out across all relevant domains, then synthesize. Start broad, then drill into the most promising domain.

Always tell the user which domains you searched and what each returned. Cite sources with DOIs, PMIDs, URLs, or arXiv IDs.

Available search domains (8 engines, 15 endpoints)

1. Live Web (Tavily)

Web Search — $0.02 Search the live web. Returns ranked URLs with titles and snippets.

bash {baseDir}/scripts/search.sh POST /api/v1/search/web '{"query":"CRISPR gene therapy 2026 breakthroughs"}'

Web Extract — $0.02 Extract clean text from URLs found via web search.

bash {baseDir}/scripts/search.sh POST /api/v1/search/extract '{"urls":["https://example.com/article"]}'

Web Q&A — $0.03 Direct answers from the web with sources. Best for factual questions.

bash {baseDir}/scripts/search.sh POST /api/v1/search/qna '{"query":"How many people use AI tools for research in 2026?"}'

2. Academic Papers (OpenAlex — 250M papers)

Search Papers — $0.002 Full-text search across 250 million academic papers. Returns titles, abstracts, authors, DOIs, citation counts.

bash {baseDir}/scripts/search.sh GET /api/v1/research/papers/search '{"query":"transformer attention mechanisms"}'

By Author — $0.002 Find all papers by a specific researcher.

bash {baseDir}/scripts/search.sh GET /api/v1/research/papers/by-author '{"author":"Geoffrey Hinton"}'

Trending — $0.002 Discover what's trending in any research field right now.

bash {baseDir}/scripts/search.sh GET /api/v1/research/papers/trending '{"topic":"large language models","days":7}'

3. Scholarly Works (Crossref — 150M works)

Search Scholarly — $0.002 Search across 150 million works — books, conference papers, datasets, journal articles, and more. Broader than OpenAlex.

bash {baseDir}/scripts/search.sh GET /api/v1/research/scholarly/search '{"query":"reinforcement learning from human feedback"}'

Journal Info — $0.001 Look up journal metadata, impact, and subject areas by ISSN.

bash {baseDir}/scripts/search.sh GET /api/v1/research/scholarly/journal-info '{"issn":"0028-0836"}'

4. Preprints (arXiv)

Search Preprints — $0.002 Search arXiv for the latest preprints before they're formally published. Cutting-edge research.

bash {baseDir}/scripts/search.sh GET /api/v1/research/preprints/search '{"query":"diffusion models image generation","category":"cs.CV"}'

Recent by Category — $0.002 Browse the latest preprints in any arXiv category.

bash {baseDir}/scripts/search.sh GET /api/v1/research/preprints/recent '{"category":"cs.AI"}'

5. Biomedical (PubMed — 36M papers)

Search Biomedical — $0.002 Search 36 million biomedical papers — medicine, biology, pharmacology, public health, genetics, neuroscience.

bash {baseDir}/scripts/search.sh GET /api/v1/research/biomedical/search '{"query":"mRNA vaccine long term immunity"}'

Related Articles — $0.002 Find conceptually similar papers to a known PMID.

bash {baseDir}/scripts/search.sh GET /api/v1/research/biomedical/related '{"pmid":"33116299"}'

6. Chemistry (PubChem)

Compound Search — $0.002 Search PubChem by compound name, formula, or CID. Returns structure, properties, identifiers.

bash {baseDir}/scripts/search.sh GET /api/v1/research/chemistry/compound '{"query":"ibuprofen"}'

Similar Compounds — $0.002 Find structurally similar compounds for drug discovery and chemical research.

bash {baseDir}/scripts/search.sh GET /api/v1/research/chemistry/similarity '{"cid":"2244"}'

7. Government Data (Data.gov + Census)

Dataset Search — $0.001 Search open government datasets across Data.gov.

bash {baseDir}/scripts/search.sh GET /api/v1/research/demographics/datasets '{"query":"renewable energy production by state"}'

Census Data — $0.001 US Census data by state, county, or zip code. Population, income, education, housing.

bash {baseDir}/scripts/search.sh GET /api/v1/research/demographics/census '{"location":"California"}'

8. Dictionary

Define — $0.001 Full definition with phonetics, part of speech, and examples.

bash {baseDir}/scripts/search.sh GET /api/v1/research/dictionary/define '{"word":"epistemology"}'

Synonyms — $0.001 Synonyms and antonyms. Also useful for expanding search queries across other domains.

bash {baseDir}/scripts/search.sh GET /api/v1/research/dictionary/synonyms '{"word":"innovative"}'

Cost per domain

Domain	Endpoints	Cost per call
Live Web	3	$0.02–$0.03
Academic Papers	3	$0.002
Scholarly Works	2	$0.001–$0.002
Preprints	2	$0.002
Biomedical	2	$0.002
Chemistry	2	$0.002
Government Data	2	$0.001
Dictionary	2	$0.001

A typical multi-domain search across 3-4 domains costs $0.006–$0.04.

Data sourced from Tavily, OpenAlex, Crossref, arXiv, PubMed, PubChem, Data.gov, US Census Bureau.