# FolioFact

> FolioFact is a value-investing research database covering curated investors,
> quarterly 13F holdings, company financials, options volatility, and SEC Form
> 4/5 insider activity. Every machine interface is read-only.

Use the public pages anonymously. FolioFact Pro API keys unlock four deeper
research tools. Public content pages support `Accept: text/markdown`; the MCP
and REST transports return structured machine data.

## Start here

- [Agents and API guide](https://foliofact.com/agents): MCP connection instructions for Claude Desktop, Claude Code, Codex, Cursor, and opencode; authentication, tiers, tools, and examples. Available as `text/markdown`.
- [Full LLM corpus](https://foliofact.com/llms-full.txt): Bounded plain-text corpus with this index and curated public research pages.
- [Methodology](https://foliofact.com/methodology): Data sources, timing, units, and interpretation caveats. Available as `text/markdown`.

## Machine interfaces

- [MCP server metadata](https://foliofact.com/.well-known/mcp/server-card.json): GET-readable server identity, protocol version, capabilities, transport URL, and documentation links. The stateless Streamable HTTP endpoint is `https://foliofact.com/mcp`; anonymous callers see eight public read-only tools and Pro keys see four additional tools.
- [REST API catalog](https://foliofact.com/api/v1/meta): JSON endpoint inventory, caller tier, limits, and canonical documentation links.
- [OpenAPI 3.1 contract](https://foliofact.com/openapi.yaml): Machine-readable REST request, response, authentication, enum, and error schemas.
- [REST API guide](https://foliofact.com/api-docs): Human-readable v1 endpoint, API-key, error, and stability reference. Available as `text/markdown`.

## Research collections

- [Funds](https://foliofact.com/funds): Tracked funds, managers, latest filings, holdings, and filing history; detail pages support `text/markdown`.
- [Stocks](https://foliofact.com/stocks): Companies held by tracked funds, ownership, financials, insider activity, and implied volatility; detail pages support `text/markdown`.
- [Investors](https://foliofact.com/investors): Curated value investors and their associated portfolios; detail pages support `text/markdown`.
- [Insider activity](https://foliofact.com/insiders): Recent SEC Form 4/5 activity across tracked issuers.
- [Research notes](https://foliofact.com/blog): Published explanatory articles; post pages and downloads are available as Markdown.

## Discovery and account links

- [Sitemap](https://foliofact.com/sitemap.xml): Canonical crawlable URL inventory with modification dates.
- [RFC 9727 API catalog](https://foliofact.com/.well-known/api-catalog): JSON linkset connecting service metadata, OpenAPI, MCP metadata, and human documentation.
- [Crawler rules](https://foliofact.com/robots.txt): Public crawl policy; programmatic transports are excluded from crawler indexing.
- [Pricing](https://foliofact.com/pricing): Free and Pro capability comparison.
- [API-key guide](https://foliofact.com/agents#api-keys): How to create, send, rotate, and revoke `ff_` bearer keys after signing in.

## Policies and help

- [About](https://foliofact.com/about): FolioFact's purpose and editorial scope.
- [FAQ](https://foliofact.com/faq): Product and data questions.
- [Privacy](https://foliofact.com/privacy): Privacy policy.
- [Terms](https://foliofact.com/terms): Terms of service and research-use limitations.

Generated 2026-10-19. Public research only; not investment advice.