Common Paper alternatives
12 MCP servers, A2A agents and x402 APIs that also do research, ranked by how much they overlap with Common Paper (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| Common Paper (this one) | MCP server | Yes | – | – |
| BRANCO - Droit français | MCP server | Yes | – | – |
| C4C: Mortgage Industry Regulations | MCP server | Yes | – | – |
| Catalyst evidence graph | MCP server | Yes | – | – |
| Evidence Board | MCP server | Yes | – | – |
| Lazyweb Public Discovery | MCP server | Yes | – | – |
| MrTrades Hyperliquid desk | MCP server | Yes | – | – |
| OpenCaseLaw — Swiss Caselaw, Statutes & Doctrine | MCP server | Yes | – | – |
| OpenDealer MCP Server | MCP server | Yes | 27 | 90/100 |
| Deep Values | MCP server | Yes | 25 | 80/100 |
| Demand Discovery AI | MCP server | Yes | 10 | 80/100 |
| Exa Search | MCP server | Yes | 2 | 80/100 |
| Firecrawl | MCP server | Yes | 3 | 80/100 |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- BRANCO - Droit français Live MCP
Droit français : textes, jurisprudence, citations et calculs. Connexion OAuth au compte BRANCO.
MCP server · fr.juan-branco · also does research
- C4C: Mortgage Industry Regulations Live MCP
Verbatim U.S. mortgage regulatory text with citations and effective dates. Read-only, no sign-in.
MCP server · com.claudeforcompliance · also does research
- Catalyst evidence graph Live MCP
Findings on what compounds and supplements do in the body, with evidence strength, quote and paper.
MCP server · ai.catalystproject · also does research
- Evidence Board Live MCP
Evidence boards for investigations: add files, link them, keep a chronology, review with citations.
MCP server · com.mtgtechnical · also does research
- Lazyweb Public Discovery Live MCP
Keyless, read-only Lazyweb discovery for agents evaluating fit or researching public evidence.
MCP server · com.lazyweb · also does research
- MrTrades Hyperliquid desk Live MCP
Hosted Hyperliquid desk. Paper on stored tape. No HL private key in the assistant.
MCP server · com.mrtrades · also does research
- OpenCaseLaw — Swiss Caselaw, Statutes & Doctrine Live MCP
1M+ Swiss court decisions, statutes & doctrine with citation graph (DE/FR/IT). CC0, free, 42 tools.
MCP server · ch.opencaselaw · also does research
- OpenDealer MCP Server Live MCP
Automotive inventory search for AI assistants: vehicles, dealers, deals, and market data.
MCP server · app.opendealer · 27 tools · check 90/100 · also does research
- Deep Values Live MCP
Value investing for US stocks: SEC filings, 13F guru holdings, intrinsic value, AI briefings.
MCP server · ai.deepvalues · 25 tools · check 80/100 · also does research
- Demand Discovery AI Live MCP
Validate startup ideas with real people asking for them, each quote linked to its source.
MCP server · ai.demanddiscovery · 10 tools · check 80/100 · also does research
- Exa Search Live MCP
Connect AI agents to Exa for web search, content fetching, and multi-step research.
MCP server · Exa · 2 tools · check 80/100 · also does research
- Firecrawl Live MCP
MCP server for Firecrawl — web search, scraping, and biomedical/arXiv paper search.
MCP server · Firecrawl · 3 tools · check 80/100 · also does research