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Open banking APIs for sustainability: an open ecosystem approach

Written by Mark Boyd
Updated at Mon May 23 2022
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Why a digital open ecosystem approach is essential to addressing the climate crises

An open ecosystem approach is essential to addressing complex, global challenges including the climate crises. Work at both global and local levels, and at scale, requires collaboration amongst stakeholders that goes beyond one-off or individual partnership arrangements.

Platformable’s definition of open ecosystems

A digital open ecosystem is a network of equitable participation opportunities that allow stakeholders (including governments and regulators, associations, industry enterprises, small and medium enterprises, researchers, community groups, and individuals) to co-create, collaborate, complement, coordinate, and/or compete with each other by using common tools including APIs, open source technologies and shared digital infrastructures.

Working effectively to solve climate crises and environmental challenges will require the following open ecosystem components:

  • Digital infrastructure: Bodies like the United Nations Environment Program have outlined models to build a global digital data ecosystem to facilitate greater use of data and APIs. Current debates about the lack of access to global energy data, for example, need to be resolved by making use of digital infrastructure platforms that can remove paywalls from access to essential datasets. Developer-focused infrastructure platforms like Postman are starting to group APIs that can be used to address climate change into open collections, and scale-ups like Switch Automation, which works on enabling digital facilities management, are aggregating APIs related to commercial buildings management to enable single views of environmental and sustainability impacts of buildings.  
  • Open standards: Agreement on common ways to define data, build APIs, share details of how algorithms are created, and so on enables collaboration at scale.
  • Common data models: In addition to (or as a subset of) open standards, common data models are also needed so that individual stakeholders are creating datasets that can be shared to coordinate, facilitate cooperation, and enable complementary and collaborative actions. (Sidenote: We have specific definitions of what we mean by each of these types of ecosystem relationships.) 
  • Data governance structures: Encouraging collaboration while protecting personal and sensitive data, overseeing equity-based solutions, and enabling market competition amongst stakeholders will require new types of data governance structures including data privacy regulations, equity impact assessments, data sharing agreements, open standards authorities, networking bodies, and so on. The Brookings Institute’s Interoperable, agile, and balanced: Rethinking technology policy and governance for the 21st century Working Paper spells out modern governance regulatory approaches that will be needed to rein in the market power imbalances and risks emerging from big tech-dominant influence on policy. These make an ideal checklist of governance processes needed for open ecosystems. 

Fostering open ecosystems for sustainability will require the above components, alongside work to advance sustainable IT more generally. Current progress on shifting towards sustainable IT architecture was recently described by API industry journalist Jennifer Riggins in her piece for The New Stack. API community hub apidays also works annually on supporting innovative projects through their annual Digital Sustainability Challenges. These initiatives, and those like the Finnish TIEKE’s project to accelerate carbon-neutral digital services, are urgently needed. Working towards sustainable IT is crucial, especially given the accelerating rate of digitalisation.

Building climate-conscious IT infrastructure

IT infrastructure is estimated to be responsible for 4-10% of global electricity consumption and 3-5% of global greenhouse gas emissions. “It is about time to start reducing the carbon footprint of digital services in collaboration between the public and private sectors,” said Hanna Niemi-Hugaerts, Executive Director at TIEKE, the Finnish Information Society Centre.


APIs and digital tools as building blocks of open ecosystems

The world’s core services infrastructures are becoming increasingly digital, a move that has been accelerated by the COVID-19 pandemic. Application programming interfaces (APIs) are a key component in these open, modern and agile digital service infrastructures. The modular nature of APIs supports open ecosystems to grow (alongside other digital tools like open source technologies, access to data, and open standards). In turn, this allows faster innovation as products and solutions can be built from reusable web services, datasets, algorithms, and other digital components.

How open banking/open finance ecosystems could support open sustainability efforts

Platformable is taking a climate mainstreaming approach, as outlined by the European Union’s budget approach since 2014. For the EU, this meant that “programmes in all policy areas [need] to consider climate priorities in their design, implementation and evaluation phases.” For us at Platformable, to start our work on open sustainability, we are focusing on how our most mature ecosystem program area — open banking/open finance — could be leveraged to support sustainability efforts.

We drew on three main sources to consider how to define the opportunities for using open banking/open finance APIs to aid open sustainability:

This allowed us to conceptualise how open banking and open finance APIs could be enlisted to drive sustainability efforts:

Platformable's model of how open banking/open finance APIs can assist in generating an open sustainability ecosystem
Source: Platformable's model of how open banking/open finance APIs can assist in generating an open sustainability ecosystem

While a followup article will describe this model in detail, from left to right, API providers (including banks, fintech and other environmental data providers) make APIs available, which are used by API consumers (such as fintech, API aggregators and greentech) to build new products and services which are then used by individuals, businesses, enterprises and researchers to take action to improve sustainability. In turn, these actions lead to impacts on society, local economies and the environment.

The offering of technical solutions, such as APIs, followed by technical advisory services, could enable participants of a circular economy in realising innovative business models and even ecosystems by greater interconnection. To establish a connection between different actors, banks can also leverage their trusted position in society. Due to their technical expertise and experience in handling sensitive data, banks can also assist in data management (e.g., data collection, processing, storage, distribution) and can eventually offer data platforms. These platforms could additionally accelerate collaborative environments in circular economy-related business models.

How API-based Ecosystems Can Serve the Circular Economy


Bank and fintech stakeholders are beginning to take an active role:

  • Commerzbank’s white paper released last year, How API-based Ecosystems Can Serve the Circular Economy, notes “ecosystems based on APIs are going to be integral in the transformation from traditional economy models into new business models, as they are founded through collaboration. They will not only allow for sustainable services but also reusing and sharing already established competencies and services between participants – as in a circular economy business model.”
  • Monika Liikamaa from Enfuce describes how their transaction-based carbon calculator allows the financial industry to act. My Carbon Action is offered via an API to banks, financial institutions and merchants, and based on payment data and country-specific datasets calculates the carbon footprint for payment transactions.
  • Richard Harmerton-Stove from 11:FS, describes some potential use cases if banks were to make use of available APIs that build carbon calculators on top of bank account transaction data. While inspiring, Harmeton-Stove focuses on individual behavior change and suggests carbon calculator feature-sets could include opportunities for individual consumers to set targets on the carbon footprint of their spending. But use cases for open banking and open finance APIs to drive sustainability efforts could go well beyond focusing primarily on individual behaviour change, which has limited impact on major causes of greenhouse gas emissions if not done in combination with industry and business-led changes. Even for individual behaviour change, carbon calculators need to go beyond simply tracking carbon footprints and enable in-app changes in behaviour: the ability to switch energy company or electricity plans (to a greater combination of renewable sources, for example) from within the calculator. 
  • As noted by Kris Dickinson at NayaOne, carbon calculators represent the “first-mover pull” for many financial institutions to start building sustainable products. Dickinson argues that as consumer demand grows, “use cases will grow rapidly.”

The first edition of our Open Banking and Open Finance for Sustainability Trends Report — covering over 100 European and UK initiatives — will be launched on 15 February 2022. 

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To join us in our Open Sustainability ecosystem work, check out our Open Sustainability product pages and get in touch.

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How to benefit from this work:

Identify collaboration opportunities, market gaps and opportunities, potential API products to integrate with and see where there is current momentum for building partnerships that create environmental value.


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Be inspired by use cases of open banking/open finance ecosystems supporting open sustainability efforts. Get insight and ideas for creating product ideas for greater impact, and support startups with their business strategies and get to market quicker.


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Mark Boyd


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