OpenSOSData – US Business Entity Search
Search US business entity records across all 53 jurisdictions in real time
MCP server · by OpenSOSData
About
OpenSOSData – US Business Entity Search is an MCP server published by OpenSOSData. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-22 and have recorded no change since. As of our marketplace pass on 2026-10-24.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http opensosdata-us-business-entity-search https://mcp.opensosdata.com/mcp
[mcp_servers.opensosdata-us-business-entity-search]
url = "https://mcp.opensosdata.com/mcp"
{
"mcpServers": {
"opensosdata-us-business-entity-search": {
"url": "https://mcp.opensosdata.com/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.1 | Forks (GitHub): 0 Stars (GitHub): 6 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
socal-business-registrations io.github.seanthings/socal-business-registrations
New Southern California business registrations: name, filing date, entity type, agent, address.
-
ohio-business-registrations io.github.seanthings/ohio-business-registrations
New Ohio business registrations: name, filing date, entity type, registered agent, address.
-
U.S. business lookup and search via KnowFirm. Bring your own API key; each call uses 1 credit.
-
colorado-business-registrations io.github.seanthings/colorado-business-registrations
New Colorado business registrations: name, formation date, entity type, registered agent, address.
-
Plainfold data tools (all tools)
Plainfold data tools: SAM.gov contracts, business entity checks, hiring signals, SEC financials.
-
companies global.rootz.companies/companies
Verify a US company: officers, agents, motor carriers. Flags when our status disagrees with state.
-
pubrecords io.github.bch1212/pubrecords
US public-records intelligence for AI agents — companies, SEC, courts, spending, licenses.
-
mcp-us-business-data io.github.avabuildsdata/mcp-us-business-data
Official-source US business, permit, and WHOIS evidence via read-only MCP tools.
-
Govparse Government Data Gateway
Pay-per-call US government data: carrier safety, visa sponsors, contracts, employer risk.
-
US public data for AI agents: recalls, gov contracts, IRS ZIP income, TX leads, WHOIS, tech stack
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
openregistry io.github.sophymarine/openregistry
Live data from 80+ official national company registries. Unmodified. For KYB and due diligence.
-
Cala pre-processes the world's public information and serves it as structured data for AI agents. Query any real-world entity — companies, people, investors, founders, executives…
-
Connect Claude to Frametric Wayfinder — the charity and nonprofit intelligence platform. Search, explore, and enrich data on 400,000+ organisations across 6 countries (England…
-
Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents
-
Open a Vivid Business account from your AI chat via MCP.
Has a listing on Claude Code: claude-plugins-official (5)
-
Government contracting research and capture workflows in Claude: opportunity and pipeline briefs, bid/no-bid and competitor analysis, price-to-win and proposal prep, powered by…
-
Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
-
Attorney guidance and legal tools for business and personal needs. AI-powered document review identifies critical risks and important clauses, advises when to engage an attorney…
-
Vibe Prospecting connects Claude to live B2B company and contact data so users can search, match, enrich, filter, and export prospects at scale. It turns natural-language requests…
Has a listing on Claude: knowledge-work-plugins (5)
-
Government contracting research and capture workflows in Claude: opportunity and pipeline briefs, bid/no-bid and competitor analysis, price-to-win and proposal prep, powered by…
-
Deal-work workflows powered by Grasp company lookup, table creation, import, buyer, transaction, table enrichment, contact, and market research tools.
-
Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents
-
Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…
-
Vibe Prospecting connects Claude to live B2B company and contact data so users can search, match, enrich, filter, and export prospects at scale. It turns natural-language requests…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Public equity investing workflows for listed-company research, earnings analysis, valuation, model updates, long/short pitches, catalysts, thesis tracking, ETF/index and…
-
Bring operational data and context into the flow of your ChatGPT conversations. You can ask questions, create and update records, and analyze your data—all through conversation…
-
Answer product and business questions with data
-
General life-sciences research workflows with query routing, evidence synthesis, and optional parallel subagent analysis across genetics, omics, biology, chemistry, structure…
-
Connect Google Calendar for scheduling, availability, daily briefs, and event management.
Has a listing on Community GitHub marketplaces (5)
-
Query Spicy Regs regulatory datasets with DuckDB against the public Cloudflare R2 bucket.
-
Build a real estate buyers list for any US county by pulling from a nationwide database of active buyers, categorizing entities (LLCs, Trusts, Corporations), and researching…
-
'Expert legal research agent for finding and scraping expungement data state by state. Knows authoritative sources, URL patterns, Firecrawl configuration, and 2026 legal…
-
Umowy jednostek sektora finansów publicznych z publicznego API Centralnego Rejestru Umów (rejestrumow.gov.pl, jawny rejestr od 1.07.2026): zamawiający, wykonawca, przedmiot…
-
Search, read, and refine evidence from local VERA archives with source citations.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
-
A runtime-portable 5-agent quality gate that adjudicates text artifacts before they ship. Five role-conditioned LLM deliberators run a 2-round async protocol with cross-read…
-
Query Sumo Logic logs, alerts, dashboards, and SIEM insights directly from Copilot.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Microsoft Dataverse plugin for coding agents, covering record CRUD, bulk data operations, advanced queries, schema and metadata, administration, security, environment management…
Has a listing on Cursor: cursor/plugins (5)
Has a listing on Docker MCP Catalog (5)
-
mcp-explorium ai.explorium/mcp-explorium
Access live company and contact data from Explorium's AgentSource B2B platform.
-
An MCP server to help make U.S. Government open datasets AI-friendly.
-
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers…
-
AI assistant for ingested content with anonymous access.
-
Production-ready RAG service to search and retrieve data from your documents.
Has a listing on Official MCP Registry (5)
-
socal-business-registrations io.github.seanthings/socal-business-registrations
New Southern California business registrations: name, filing date, entity type, agent, address.
-
ohio-business-registrations io.github.seanthings/ohio-business-registrations
New Ohio business registrations: name, filing date, entity type, registered agent, address.
-
U.S. business lookup and search via KnowFirm. Bring your own API key; each call uses 1 credit.
-
colorado-business-registrations io.github.seanthings/colorado-business-registrations
New Colorado business registrations: name, formation date, entity type, registered agent, address.
-
Plainfold data tools (all tools)
Plainfold data tools: SAM.gov contracts, business entity checks, hiring signals, SEC financials.
Has a listing on PyPI (MCP servers) (5)
-
apollo com.mcparmory/apollo
Search and enrich contact and company data from 210M+ people and 35M+ companies
-
SAM.gov readiness, entities, exclusions, opportunities, awards, hierarchy, and subawards. 20 tools.
-
sec-edgar-mcp io.github.stefanoamorelli/sec-edgar-mcp
SEC EDGAR MCP server that provides access to the US public filings through the US SEC EDGAR API
-
Regulations.gov readiness, rulemaking dockets, documents, comments, and comment periods. 9 tools.
-
Search US government contracts, grants and jobs from matchawards.com. Read-only, no key.
Has a listing on npm registry (MCP servers) (5)
-
MCP server for prospectapis.com: funding rounds and cited prospect research briefs.
-
Company data and KYB API for 29 countries: monitoring, financial statements, insolvency, sanctions
-
Open data from 40+ U.S. government APIs: economy, spending, Congress, health, energy, disasters
-
B2B lead and company data for AI agents: free search, pay only for emails, phones, profiles.
-
scrapercity-cli io.github.scrapercity/scrapercity-cli
B2B lead generation MCP server - 20+ scrapers, email finder, skip trace, and more.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.