OpenRegistry

OpenRegistry is an API and MCP for real-time company data directly from official government registries.

OpenRegistry provides real-time access to unmodified raw data and filings from over 80 official government registries worldwide via Model Context Protocol (MCP) and API. It allows AI agents and users to search companies, retrieve profiles, officers, shareholders, charges, filings, and financial-statement documents directly from upstream sources like UK Companies House, CRO Ireland, and Zefix. Every field name, status value, and raw filing byte is preserved verbatim without aggregator markup or caching. The platform supports cross-border chain queries in a single conversation to uncover ownership structures across multiple jurisdictions. It is designed for developers and AI agents requiring live, reliable, and source-linked corporate registry data.

OpenRegistry at a glance

Best for: Software engineer, Finance, Researcher
Runs on: Web, API, self-hosted, open source
Pricing: Free tier; paid keys for higher quota and depth
Released: October 2026
Category: AI agent tool
Website: github.com/sophymarine/openregistry

Key features

Search companies across 80+ official government registries
Retrieve live company profiles, officers, and shareholders
Access raw filing bytes including iXBRL, PDF, and XBRL
Chain queries across borders in a single conversation
Preserve unmodified upstream payloads and field names
Receive structured error responses for rate limits and outages

Use it for

Perform cross-border due diligence and KYC checks
Walk corporate ownership chains to find ultimate beneficial owners
Retrieve live statutory financial accounts as machine-readable XBRL
Monitor material corporate filings and events

Alternatives to OpenRegistry

OpenBot — Runs entirely on your own infrastructure with strict document permissions and custom.
OpenHarness — Manages Claude Code, Codex, and Hermes from a single command center.
Opengeni — It provides complete agent infrastructure with durable sessions and sandboxes out of the box.
OpenViking — Unifies agent memory, knowledge RAG, and skills into a single directory structure.
Registrum — Access Companies House data instantly in your AI client without an account or API key.
Open Multi-Agent — It enables self-hosted, audit-ready AI agents with offline verifiable records.
BrowserOS — Runs entirely locally and lets AI agents use real user logins to complete tasks.
Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
Tilde — Register and govern agents in any language from a single management interface.
OpenObserve — Full observability stack at a fraction of the usual storage cost
OpenRig — Coordinate multiple AI coding agents across long-term projects.
OpenRMM — Self-hosted infrastructure with complete data privacy and human approval for every action.

All OpenRegistry alternatives