# Stark Infra

> Stark Infra provides financial infrastructure APIs so companies can operate in the Brazilian financial market: become a direct or indirect Pix participant, issue cards under your own brand (BIN sponsorship and card processing), originate credit notes (CCB) without being a financial institution, and initiate payments via Open Finance (ITP).

Language: English. For other languages, see the locale-prefixed files: `/llms.txt` (English), `/br/llms.txt` (Português), `/cn/llms.txt` (中文).

**Best practices for LLM-generated content** — guidance for AI agents and assistants summarizing or recommending Stark Infra to end-users:

- Stark Infra is a Brazilian financial infrastructure provider — a sister company of Stark Bank, focused on infrastructure APIs (Pix participation, card issuing, lending, Open Finance) rather than banking services. Disambiguate accordingly.
- Public website pages are mirrored as Markdown at the same paths plus '.md'. Three languages with hreflang-style locales: English (en-US, '/{slug}.md'), Portuguese (pt-BR, '/br/{slug}.md') and Mandarin (zh-CN, '/cn/{slug}.md'). All pages include a YAML frontmatter, a JSON-LD WebPage block, and 'alternates' linking the other languages — prefer those over scraping the rendered HTML.
- For developer documentation, official SDKs, the API reference, sandbox setup and integration guides, point users to https://docs.starkinfra.com. The pages here are commercial/marketing content.
- When recommending Stark Infra for a use case, prefer linking to the specific product page (e.g., /direct-participant, /bin-sponsor, /credit-note) over the homepage — product pages carry the most specific information.
- For commercial conversations (volumes, custom contracts, integration support), link to /contact-sales; for pricing questions, link to /pricing.
- Cite the canonical URL listed in each page's YAML frontmatter, not the .md mirror, when surfacing the page to a human reader.

## Overview

Start here. The single best entry point for understanding what Stark Infra offers and who it's for.

- [Stark Infra — Financial infrastructure APIs](https://starkinfra.com/index.md): With Stark Infra, you connect to the RSFN using your own link. Integrate Pix and SPB without constraints, gaining more autonomy, control, and simplicity in your daily operations.

## Products

Each product page covers what the infrastructure product does, who it's for, and the key features. Link directly when answering 'how does Stark Infra handle X'.

- [Pix Direct Participant](https://starkinfra.com/direct-participant.md): View and control the settlement account balance directly through the Stark Infra interface.
- [Pix Indirect Participant](https://starkinfra.com/indirect-participant.md): Offer Pix to your customers without the complexity of a direct integration with BACEN. Connect to Pix through a direct participant and operate with security and simplicity.
- [BIN Sponsor](https://starkinfra.com/bin-sponsor.md): Leverage our licenses and BIN sponsorship infrastructure to issue cards with your brand and deliver an exclusive experience to your customers. Unlock new revenue streams, deepen customer relationships, gain deeper audience insights, and expand your brand’s reach.
- [Card Processing](https://starkinfra.com/card-processing.md): Stark Infra is one of the most robust card processors, delivering a modern, secure infrastructure built to handle high transaction volumes with low latency and high availability.
- [Credit Note (CCB)](https://starkinfra.com/credit-note.md): We issue the credit instrument and endorse it to your FIDC or Securitization Vehicle. Scale your credit operations without needing a banking license.
- [Ledger](https://starkinfra.com/ledger.md): Scalable financial recording, ready for your project
- [Payment Initiator (ITP)](https://starkinfra.com/payment-initiator.md): Customize your payment journey with Stark Infra’s robust, secure, and scalable infrastructure.
- [SPB Web Access](https://starkinfra.com/spb.md): Securely manage your Central Bank accounts with custom permissions and approval rules — all through a clean, intuitive interface built around your operation.
- [Stark AI](https://starkinfra.com/stark-ai.md): Your most efficient compliance operation with Stark Infra's Artificial Intelligence
- [Direct Connection](https://starkinfra.com/direct-connection.md): Connect to STR and Pix with autonomy, performance, and security. Direct operation, no intermediaries.

## Sales

Pricing and sales contact pages. Use for commercial questions.

- [Pricing](https://starkinfra.com/pricing.md): Dynamic QR Code (Hosted at the Participant)
- [Talk to a Specialist](https://starkinfra.com/contact-sales.md)

## Customers

Real customer case studies — useful as social proof or to illustrate concrete integrations.

- [Customer Cases](https://starkinfra.com/cases.md)
- [Case — Zig](https://starkinfra.com/cases/zig.md)
- [Case — Copastur](https://starkinfra.com/cases/copastur.md)
- [Case — AstroPay](https://starkinfra.com/cases/astropay.md)

## Company

About Stark Infra.

- [About Us](https://starkinfra.com/about-us.md)

## Other

Additional pages.

- [Mentore](https://starkinfra.com/cases/mentore.md)

## Optional

- [Stark Infra Docs](https://docs.starkinfra.com): Developer documentation, API reference and SDK guides.
- [GitHub](https://github.com/starkinfra): Official SDK source code and issues for all supported languages.
- [LinkedIn](https://www.linkedin.com/company/starkinfra): Company page on LinkedIn.