# 0si.ai / 공시.ai

> Source-linked analysis of Korean DART/KIND disclosures and US SEC EDGAR filings, with structured financial comparisons and observed market reactions. Operated by Nebula Trading Co., Ltd.

This optional navigation index points to public documentation. It does not grant API access, replace robots.txt or service terms, change training permissions, or guarantee search ranking or AI citations. Updated: 2026-10-09. Methodology reviewed: 2026-10-06.

## Public Product and Evidence

- [Product](https://0si.ai/): Service scope and product overview.
- [Public disclosure collection](https://app.0si.ai/d/collection): Find source-linked disclosure summaries and use the specific disclosure page for citations.
- [Disclosure sitemap](https://app.0si.ai/d/sitemap.xml): Discover public disclosure page URLs.
- [Methodology](https://0si.ai/methodology): Sources, analysis labels, financial comparisons and known limitations.
- [Citation and provenance](https://0si.ai/methodology#citation): Separate original filing facts from derived analysis and record the relevant dates.
- [Plans](https://0si.ai/plans): Current pricing and access conditions.

## Developer References

- [API documentation](https://0si.ai/developers): Pro and trial keys, REST, filtered signed webhooks, SSE, SDKs, usage limits and changelog.
- [Compact Markdown guide](https://0si.ai/static/developers.md): Endpoint inventory and interpretation rules for structured data.
- [OpenAPI 3.1](https://0si.ai/static/openapi-v1.json): Machine-readable API schema; requests need a Pro key or a trial key (REST reads only).
- [Service status](https://0si.ai/static/status.html): Current collection, analysis and delivery status.
- [Remote MCP server](https://0si.ai/developers#mcp): `https://app.0si.ai/api/mcp` (Streamable HTTP, OAuth 2.1 with PKCE or a developer API key as Bearer token); eight read-only disclosure tools with the same plan limits as the REST API. Listed in the official MCP Registry as `ai.0si/disclosures`; server card at https://app.0si.ai/.well-known/mcp/server-card.json. A local stdio client is also available.

## Policies and Support

- [Terms](https://0si.ai/terms): Service terms.
- [Privacy](https://0si.ai/privacy): Privacy policy.
- [Support](https://0si.ai/support): Contact and corrections.

Analysis labels are not price predictions or investment recommendations. Missing financial or quote data is not zero. Public summaries do not replace the original filing or the authenticated API. Cite original filing sources for issuer facts and 0si.ai for its derived interpretation.