Iniciador launches Brazil's first agentic payments MCP on Pix
The launch puts Brazil's instant payment rail in the global race for AI agent infrastructure — and positions Iniciador as the strategic tech partner for banks and fintechs.
São Paulo, May 19, 2026.
Today we are launching three products: the agentic payments MCP on Pix — the first in Brazil — Open Finance Full-Stack (engineers embedded in your operation as an integrated service), and the AI Toolkit, which gives customers Skills and an MCP Server to operate Iniciador's Open Finance infrastructure directly from their own AI agents.
The three announcements ship alongside our new site and an update to our positioning as full-stack Open Finance infrastructure — something many of you already knew us for, even though our name highlights our specialty in payment initiation.
It all starts from one premise: Brazil's payments infrastructure is the best-prepared base in the world for the agent era — and the natural next step on top of that base is agentic payment.
Agentic Payments: Brazil's first Pix MCP
How it works. The journey starts with the bank's or fintech's AI agent discovering and proposing the payment. The agent never moves money on its own. The user is notified, checks the amount and recipient, and authorizes with biometrics — Face ID, Touch ID, or equivalent. The bank validates the transaction. Pix settles in seconds.
Why it matters. The difference from agentic models built abroad is the rail. Most global agentic payment platforms layer payment authorization on top of card networks or crypto. In Iniciador's MCP, authorization, infrastructure, and payment initiation are all native and regulated. And our partners get visibility into both sides of the agent's transaction — something traditional Pix copy-and-paste can't deliver.
In practice, that means:
- Coverage: the product ships enabled for more than 95% of Brazil's adult population — roughly 1 billion accounts across 150+ institutions, via Open Finance.
- Security: human-in-the-loop with biometric approval via FIDO2, with a cryptographic key bound to the device. Additional protection against phishing, replay attacks, and a compromised agent. The user approves the transaction with payment data generated by us, not by the agent — anti-spoofing by default.
- Settlement: instant, in seconds, no chargebacks, with confirmation via webhook independent of the recipient's account.
- Regulation: the Open Finance framework underpinning agentic payments, with a flow regulated by the Banco Central do Brasil (BCB) — a stamp of approval that lets consumers and the market innovate without taking on regulatory risk.
"While much of the world is debating how to retrofit old rails or build new, more complex ones for the agent era, Brazil already has the base in place — and it wasn't luck. Pix and Open Finance were planned methodically by the BCB. Agentic payment is the natural next step on top of that base, and that's what we're enabling for any institution or fintech in the country."
— Gustavo Bresler, CPO, Iniciador
See the product in detail:
The product goes into production today, building on our track record of enabling native conversational payments in Brazil.
Open Finance Full-Stack: forward deployed engineers for Open Finance
Open Finance Full-Stack is an operating mode that goes beyond infrastructure and managed operations. It includes a team of engineers embedded with the customer, as an integrated service.
It's the forward deployed engineers model — pioneered by Palantir and, more recently, adopted by Anthropic and OpenAI. Iniciador's engineers support the implementation and rollout of Open Finance inside the institution's internal products — which then gets capacity to generate value with Open Finance tooling, without having to absorb the technical, regulatory, and operational complexity of the participations.
Integrations with internal systems, ongoing regulatory adjustments, vendor migration, monitoring of FAPI/MQD/FVP/PCM. All of it sits on our side. Your team stops acting as a regulatory Service Desk.
Stone is the first customer in production on this model. It migrated its Account Holder (Detentora de Contas) and Data Transmitter (Transmissora de Dados) participations in Open Finance to Iniciador in under three months — preserving every active consent and session.
"Iniciador has become a strategic ally for Stone, handling our Open Finance end to end — technology, regulatory, monitoring, and service desk. No headaches."
— Ellis Croce, Stone
AI Toolkit: agents on the operations side too
Agentic Payments is the product surface facing the end user of the bank or fintech. The AI Toolkit is the back office: AI tooling so Iniciador's customers themselves can integrate, manage, and monitor the operation from their own AI agents.
Two tools. Skills with instructions and context tuned for the AI assistants doing the integrations — Claude Code, OpenAI Codex, Gemini, Kimi, Composer, or whatever you use. And an MCP Server that exposes Iniciador's management and operations APIs as tools the customer's agent can invoke directly.
Result: the customer's product team talks to Iniciador's infrastructure and conversion data in the same flow where they're already building. No context switching, no clicking through portals, no opening tickets.
Why here, why now
Pix became Brazilians' favorite online payment method in 2026, accounting for 44% of checkout in the country versus 41% for cards, according to EBANX (Beyond Borders 2026). 1 in 3 payments initiated via Open Finance runs through Iniciador's infrastructure — a category that grew 59% in transaction volume in 2026, according to the Associação Open Finance Brasil and the BCB.
This base didn't appear by accident. Pix and Open Finance Brasil were designed by the BCB as public payments infrastructure, in a process that's still ongoing, with new regulatory initiatives shipping continuously. Brazil enters the AI agent era with a rail few countries have — and with the most mature bank consent framework in the world.
While much of the global market debates how to adapt other networks to support agentic or programmable payments, the rail that solves the problem simply, securely, cheaply, and universally is already designed and deployed in Brazil, at national scale. Every transactional account is the equivalent of a "tokenized deposit." What was missing was the layer that gives AI agents access to that rail — and that's what we're launching today.
What's next
All three announcements are available to regulated institutions and fintechs building the future of Brazil's financial system.
- Agentic Payments — see the product
- Open Finance Full-Stack — see how it works
- AI Toolkit — talk to our sales team for early access
About Iniciador
Iniciador is the infrastructure behind 1 in 3 Pix payments initiated via Open Finance in Brazil. Authorized by the Banco Central do Brasil (BCB) as a Payment Transaction Initiator (ITP), it provides the technology that lets financial institutions, fintechs, and digital platforms operate Brazilian Open Finance without the technical, operational, and regulatory complexity involved. Founded in 2021, it powers customers including iFood, Stone, PagBank, Cloudwalk, Wise, Nomad, Núclea, Magie, and Jota. Iniciador raised a US$6 million seed round led by Valor Capital and counts Prosus among its investors. It is a founding member of Associação Open Finance Brasil, holds a board of directors seat, and contributes actively to building the standards that will shape the future of financial services in the country.