# PUBLICMCP

> PUBLICMCP is the open standard for public-facing business and nonprofit identity MCP
> servers. It defines a required set of tools — get_info, get_services, get_location —
> that any organization can expose so AI agents can discover and query them directly via
> the Model Context Protocol, with no scraping and no authentication. This site also hosts
> a free public library of 184,000+ primary sources and a directory/verification layer for
> registered businesses.

## Standard

- [Specification (SPEC.md)](https://publicmcp.org/SPEC.md): the full PUBLICMCP standard — required and recommended tools, business.json schema, discovery endpoint format.
- [How it works](https://publicmcp.org/#how-it-works): what a compliant server exposes, in plain terms.
- [Quickstart / self-host guide](https://publicmcp.org/#guide-quickstart): deploy a compliant server in three steps.

## Directory & Verification

- [Join the directory / Get Verified](https://publicmcp.org/#join-directory): how listing and verification work.
- [Verification criteria](https://publicmcp.org/verification-criteria): the objective, published methodology behind Listed and Verified status — no customer reviews, no pay-to-rank.
- [Registry endpoint](https://mcp.publicmcp.org/mcp): call list_registry() or search_registry() directly to query every registered business — no scraping needed.
- Individual verification records live at https://publicmcp.org/verify/<slug> for every registered tenant (e.g. https://publicmcp.org/verify/sltcreative). Every record also has a markdown twin at https://publicmcp.org/verify/<slug>.md — fewer tokens, same data.

## Public Library

- [Library page](https://publicmcp.org/library): 184,000+ primary sources, including a semiconductor manufacturing training set, free for any AI agent to query.
- [Library MCP endpoint](https://library.publicmcp.org/mcp): call search_library(), fetch_library(), or list_library_sets() directly.
- [Connect guide](https://publicmcp.org/#guide-connect): add the library to Claude in 60 seconds.

## Optional

- [Context as a Service (CaaS)](https://publicmcp.org/caas): private MCP servers for persistent memory and financial intelligence.
- [Cognition Cloud](https://publicmcp.org/cognitionmcp): persistent memory for AI agents across sessions.
- [SEC MCP Server](https://publicmcp.org/sec-server): live SEC EDGAR filings queryable via MCP.