APIs (Application Programming Interfaces) are software solutions that help communication between applications for mutual exchange of data or services.

1. We say that
APIs expose
their data
or services
APISAPIs (Application Programming Interfaces) are software solutions
that help communication between applications for mutual exchange
of data or services.
WEAREUNKNOWINGLYUSINGAPISEVERYDAY
Braintree
Uber
Sonos
Spotify
Remote Control
Associated device
Minicab
Underground
Rail
Google
Maps
GPS
Citymapper
CONCRETELY,HOWDOTHEYWORK?
APIs are the interfaces that give access
to the data or services we need.
Services we are using daily rely on the capacities the APIs
offer to deliver improved user experiences.
My application
API
ThetypesofAPIs
2
4
Authentication
Provider query
Data or service fetching
in a structured format
Request
Data or services
offered by the
remote provider
API Terms of Service
GLOSSARY
Google Maps online mapping
service
Braintree helps people exchange
money thanks to their phone
number only
Uber car sharing application
Citymapper mobile application for
urban transport and route calculation
Spotify online platform for music
streaming
Remote control helps turning
smartphones into remote controls
Sonos swireless home audio system
1
3
INTERNAL API
API dedicated to company internal operations.
It enables the use of the company’s data or services in a quick
and standard way, with no duplication.
PUBLIC API
API accessible to all after a simple online contract. It enables
third parties to develop applications that interact with your
API (source of innovation).
PRIVATE API
API shared with some corporate partners under certain
conditions. It helps generate new revenue streams while
ensuring a real-time experience and better security control.
TYPESOFDATAACCESSIBLEVIAAPIs
ENDLESSPOSSIBILITIES
API
Clients
Theoretical train timetables
Client information
User identification
Cold data
Hot data
Route details from home to the station
Text sending
Services
Alerts
Real-time information
Cancellations
i
SIMPLICITY
Thanks to APIs, it is possible to interact with a system with
no need to worry about its complexity or its functioning.
There’s no need to understand how Google Maps works
to use its API and access to its information.
SECURITY
APIs help make data or functionalities available to third parties
without opening access to the source systems. The APIs offer
a better security monitoring and management.
CONTROL
APIs enable to link data access to a license to use
called API Terms of Service. The document will
define a contract about what the APIs offer and
help the emitter control access to that.
DEVELOPMENT AND MAINTENANCE
The provider can upgrade the API eby enhancing
them with offered data or services and make them
available at once to all the clients. Similarly, this
simplifies the maintenance, for it is directly focused
on the API and thus doesn’t impact the clients.
PERSONALIZATION
Using APIs helps offer bespoke service to the users.
INNOVATION
Relying on existing services or data helps make the
development cycles shorter and modify iterations, which
fosters innovation. Making services or data available through
APIs encourages external players to make the most of them
and offer innovative user experiences.
OPPORTUNITIES
APIs need to be considered like products, with their value
propositions, features, life cycles, and over all their users.
The mainstreaming of APIs represents new opportunities
that consist in providing data or services thanks to them.
STANDARD
APIs work according to standards
that simplify their implementations.
THEADVANTAGESOF
USINGAPIs
THEBUSINESSMODELOFAPIs
CONCLUSION
THEAPISAREATTHECOREOFOPENBANKINGANDPLATFORMISATIONOFFINANCE
Since September 2019, the European Payment Services Directive (PSD2) has pushed
banks to share via APIs the data from their clients’ bank accounts with third-party
payment service providers.
Today, the finance institutions are using the API technology to provide their clients
and partners with new digital services, like insurance and payment services.
The implementation of APIs helps to make the banking information systems
more agile. It also makes it possible for banks to offer more value to their customers
outside of a closed environment, while maintaining the highest level of security.
The BNP Paribas Group has implemented the API Store (https://apistore.bnpparibas),
a platform that indexes the existing APIs in the different activities of BNP Paribas
worldwide. The API Store makes it easier for partners, startups and developers
to use the Group API services, for them to develop easily new customer experiences
and applications, by relying on the the financial services of the BNP Paribas Group.
Such data sharing is possible thanks to the implementation of an API portal that opens
their Information System to certified payment service providers that are fitted with
an eIDAS certificate.
Implementing APIs and opening systems to the outside is a
genuine source of opportunities, innovation-, agility-, cost-efficiency-
and even business-wise. Such opening should be part of a clearly
defined strategy, based on a consistent economic model
which takes into account the new possible threats APIs
represent for the information system.
.
DIRECT
INDIRECT
Freemium
Internal ROI
The API is available in a free,
limited version, and a paid,
unlimited version
The API accelerates
the internal development
Driving Traffic
The API encourages
to use the product
Content
The API helps getting
content
Affilitation
The API helps
acquiring users
SaaS
The API is indirectly monetized through
the portfolio included in the offer
Per unit
The price depends on the
chosen functionalities
Pay-as-you-go
The price is indexed
on the consumption
Gradual
The price raises
with the consumption
Sliding scale
The price lowers
with the consumption
APIs often use a double model: for instance, a Freemium
model is often used with a quantitative model (pay-as-
you-go, gradual or sliding scale).
Writing 100% of the applications is not
necessary anymore: it is possible to pick up the
needed data, functionalities or services in the available APIs, which is time- and
money-saving. Be it to add an online payment service, train timetables or geolocation,
the development seems like an applicative construction game. Each element interlocks
in a standardized and secure manner without interfering with the others.
This is a limitless game!
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Sources :
https://www.agencedebord.com/api-definition-utilisation
https://www.lafabriquedunet.fr/blog/definition-api/
https://www.journaldunet.com/solutions/expert/67537/les-api--pourquoi-elles-sont-devenues-incontournables-pour-l-innovation.shtml
https://www.agefi.fr/fintech/actualites/hebdo/20160915/api-portent-l-innovation-dans-banques-198229
API Business Models (John Musser)
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