Open finance and open banking

Building open bankingon the FDX standard.

Customers share their financial data with apps, aggregators and their own accounting & ERP systems. Open banking replaces screen scraping with standard, consented APIs, and in the U.S. the industry is converging on the FDX API. Built or bought, that layer still has to be connected to your core, cards, lending and treasury systems.

The Financial Data Exchange

The FDX API is an industry-written standard for sharing financial data.

FDX is a nonprofit standards body of banks, fintechs, aggregators, consumer groups and others. Its API defines the data, consent and security for sharing permissioned consumer and business financial data.

About 200

member organizations: banks, credit unions, fintechs, aggregators, payment networks and consumer advocates.

FDX, April 2026
114 million

customer accounts on FDX-aligned APIs, as FDX reported in 2025.

FDX, April 2025
v6.4

the FDX API's Spring 2025 edition, adding a consent API and a data format aimed at the Section 1033 rule.

FDX, June 2025
2030

The CFPB recognized FDX as a standard-setting body in January 2025, for five years.

CFPB order of recognition
99.5%

the minimum response rate the final Section 1033 rule sets for a bank's developer interface.

CFPB final rule, October 2024
One year

the longest a third party's access lasts under the final rule before the customer must re-authorize it.

CFPB final rule, October 2024

Banks on FDX's board include JPMorgan Chase, Bank of America, Wells Fargo, Capital One, PNC and USAA, alongside The Clearing House, Akoya, Plaid, MX, Envestnet | Yodlee, Mastercard and PayPal. See FDX's leadership, or the standard at financialdataexchange.org.

Taking part in the consortium

Implementing the standard and taking part in FDX.

A bank can implement the FDX API without joining. Members have a say in what later versions require.

  1. 01Read the specificationFDX offers an observer route to the specification for organizations implementing it before or without joining.
  2. 02Join as a data providerTiered membership for banks and credit unions, with seats in working groups on data, security, consent and certification.
  3. 03Influence new editionsFDX releases new editions regularly. Members see changes early and argue for what their customers and systems need.
  4. 04Prepare for certificationThe CFPB's recognition order notes FDX is developing a certification program for data providers. Building to the standard now shortens that path.

Membership details are on FDX's membership page.

The Section 1033 rule

The Section 1033 rule is being reconsidered, and its compliance dates are stayed.

The CFPB's personal financial data rights rule would require banks to share consumer data through a standard developer interface. Customer demand for safe, consented data sharing continues while it is on hold.

  1. Oct 2024The final ruleCompliance dates by size, from April 2026 for the largest banks to April 2030 for those with $850 million to $1.5 billion in assets; the smallest exempt.
  2. Aug 2025ReconsiderationThe CFPB asked for comment on who may act for a consumer, fees, security and privacy.
  3. Oct 2025The dates are stayedA federal court barred enforcement and stayed the compliance dates until the CFPB completes its reconsideration.
  4. 2026A new proposalA revised proposal was reported sent for federal review in August 2026. It may change the dates and duties.

The CFPB's personal financial data rights and reconsideration pages, and the ABA Banking Journal on the court's order. The rule covers consumer accounts, not small business accounts; the FDX API covers business data too.

How Ignite supports you

We build the integration behind the API, whoever provides the front end.

We integrate cores, cards, lending, digital and treasury platforms, and the API layers that join them. On an open banking program we do that and the entitlements work it depends on.

01

Strategy and readiness

Where your systems and data stand against the standard and the rule, and build or buy, decided on evidence.

02

API development

The integration layer to every system of record, through your gateway, mapped to the FDX data model.

03

Consent and entitlements

Who may share which account, enforced the same way in the portal and the API.

04

Provider integration

If you buy a platform, we connect it to your stack and test it end to end.

Build or buy

Whether a bank builds or buys the API layer, the integration behind it is the bank's.

A platform gets you the customer-facing API, consent dashboard and developer portal sooner. Building gives you control and one fewer vendor.

Buying an open banking platform and building your own compared
Buy a platformBuild your own
The standardThe provider tracks each FDX releaseYour team implements and tests each release
Consent and dashboardIncluded, in the provider's designDesigned and built to your experience
Developer onboardingA portal and sandbox, often includedYours to build, document and support
Security profileThe provider's, reviewed by your teamsYours to design, test and evidence
Cost shapeA subscription that grows with useEngineering time, then ongoing upkeep
The riskAnother critical vendor, and its data modelA standard that keeps changing

Either way

The integration with your core, cards, lending, wealth and treasury systems, the mapping of their data to the standard, and the checks on who may share which account stay with the bank.

Behind the API

What the bank builds behind any provider's API.

Whatever faces the customer, the bank's own API stack has to be connected to it: the systems that hold data, the rules on who may see it, and the operations that run it.

Integration

Systems of record

Deposits, cards, loans, wealth and treasury, each connected through the bank's API gateway, in real time where the standard expects it.

Data mapping

Each system's fields mapped to the FDX data model, with the gaps found and decided before a recipient finds them.

Performance

Response times and availability the rule can measure, from systems not built to be called this often.

Consent and access

Consent and tokens

What the customer agreed to share, with whom, and until when, enforced on every call and revocable at any time.

Who may share what

Joint owners, authorized users and business users checked against the bank's entitlements, account by account. Entitlements and the portal.

Authentication

The customer signs in with the bank, never handing credentials to a third party, under a strong API security profile.

Operating it

Monitoring and reporting

Uptime, response rates, errors and access, measured and reported.

Third-party risk

Due diligence on the recipients and aggregators connecting, and a way to cut off one that misbehaves.

Turning off scraping

A plan to move recipients from screen scraping to the API, and to stop credential sharing once they have.

What catches teams out

Where open banking programs run into problems.

Most come from the bank's own data and rules rather than the API.

Business accounts

Business accounts are outside the rule.

Small business and commercial customers still want their accounting and ERP systems connected, and the standard supports it.

Entitlements

Sharing exposes gaps in who may see what.

A business user with view rights on one account, a joint owner and a power of attorney each need a clear answer before an API gives one.

Data quality

The API exposes data quality problems.

Missing fields, inconsistent transaction descriptions and systems that disagree become visible to all recipients at once.

A moving standard

New editions of the specification.

Plan for new editions of the FDX API, and for recipients on different versions at the same time.

Scraping persists

Screen scraping continues after launch.

Until recipients move and credential access is turned off, the bank runs both the API and the screen scraping it replaces.

The rule's next draft

Design to the standard while the rule changes.

The reconsideration may change fees, scope and dates; a standards-based design holds up under most outcomes.

Spend 30 minutes with us

Talk with us about your open banking program.

No pitch, no obligation. And if we're not the right team for it, we'll tell you that too.

Spend 30 minutes with usThe program register

Bring your roadmap.Partner with us.Let's connect.Send me the program register.

We'd love to hear what you're working on. No pitch, no obligation, and if we're not the right team for it, we'll tell you that too.The programs we have finished, by line of work and institution segment, and the stages each one ran through. We email it to you.

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