# BUFI developer documentation — bu.finance

> BUFI public HTTP endpoints, OpenAPI specification, Markdown negotiation and authentication boundaries for agents reading bu.finance.

## Public HTTP surface

bu.finance is the BUFI marketing website. Its public reading endpoints require no authentication. The OpenAPI 3.1 specification catalogs these read-only resources; it does not grant access to financial operations in the BUFI product.

- [BUFI OpenAPI specification](https://www.bu.finance/openapi.json)
- [BUFI agent index](https://www.bu.finance/llms.txt)
- [BUFI extended product context](https://www.bu.finance/llms-full.txt)

## Read pages as Markdown

Send Accept: text/markdown to the homepage, including locale-prefixed homepage URLs, or to /docs. Responses use Content-Type: text/markdown; charset=utf-8 and Vary: Accept. Send Accept: text/html for the usual HTML page. Markdown currently uses the English product copy. Explicit .md URLs remain available without negotiation. Missing pages return HTTP 404 with a useful Markdown body when Markdown is requested.

- [BUFI homepage as Markdown](https://www.bu.finance/index.md)
- [BUFI developer documentation as Markdown](https://www.bu.finance/docs.md)
- [BUFI sitemap](https://www.bu.finance/sitemap.xml)
- [BUFI blog RSS](https://www.bu.finance/blog/rss.xml)

## Authentication and browser helpers

Do not send API keys, access tokens or wallet credentials to these public reading endpoints. The landing also has protected browser helpers for its chat, sales form, stickers and bonus game. Those helpers are not a public integration API and are outside this read-only catalog. Their same-origin, bot-verification and other protections still apply.

- [BUFI authentication documentation](https://www.bu.finance/auth.md)

## Product integrations, SDKs and MCP

Product access and financial permissions belong to the separately hosted BUFI application and its onboarding process. This landing does not issue product credentials or host a network MCP server. For an integration, SDK or MCP access request, contact BUFI to confirm the supported interface, eligibility and authentication contract before building against it.

- [Contact BUFI about integrations](mailto:hello@bu.finance)
- [BUFI product](https://desk.bu.finance)