API Administration Greatest Practices | Toptal®

As extra data is shared throughout methods, utility programming interfaces (APIs) have turn into strategically vital for organizations of every type and sizes. The variety of public APIs obtainable elevated from fewer than 400 in 2006 to greater than 20,000 in 2019, in keeping with a 2021 Deloitte report. A 2022 report by Rapid discovered that 75% of builders make the most of inside APIs and almost 54% work with third-party APIs. The report additionally discovered that the variety of APIs a company maintains grows with the scale of the group: 32% of corporations with 201 to 1,000 workers use between 11 and 50 APIs, whereas virtually 38% of corporations with greater than 10,000 workers use greater than 250.

Managing even a single API is a posh process, involving a number of stakeholders from many know-how and enterprise capabilities. If issues go unsuitable, the losses might be vital. That is why it’s necessary to have a strategic and holistic strategy to managing APIs. A method of attaining that is to deal with the API as a product, an idea generally known as AaaP. That will help you navigate the API panorama, I’ve gathered these prime API administration finest practices from my decade working as a digital product specialist.

API Sorts: An Overview

Merely put, an API is a algorithm and protocols that enables completely different methods to speak and share information and capabilities. APIs are utilized by completely different methods and functions, so the tip clients are builders, architects, product managers, and different professionals managing these methods and functions. There are a lot of forms of APIs and a number of methods to prepare them. When growing and managing an API, take into account the class (or classes) it falls into. Listed here are three of the most typical.

1. Entry: Inside, Associate, and Public

Because the identify suggests, inside APIs are used inside a company and are usually not obtainable to any exterior methods. They’re extra frequent in bigger organizations, the place they’re used to spice up productiveness, share capabilities, and enhance processes. These large-scale APIs are probably the most difficult to work on, however in addition they provide thrilling prospects for companies and merchandise.

Associate APIs can be found to pick out events that should register so as to use them. They’re a good way for corporations to share sure information or capabilities whereas retaining entry management, setting necessities to be used, and reserving the power to revoke permissions at any time. One of the vital well-known examples is the Amazon Selling Partner API—a mature, profitable API utilized by hundreds of distributors that provides a catalog of processing functionalities for orders, funds, transport, and reporting.

Public APIs are open to everybody, though they often require registration to acquire the API keys. These APIs can stimulate innovation and construct ecosystems, and are sometimes considered as a public good, providing simply accessible infrastructure. An instance is the NASA API portal, which supplies public entry to information comparable to moon, Earth, and Mars imagery and the Close to-Earth Object Net Service. IMDb, Yahoo Finance, Shazam, and Google Maps all have public APIs too.

2. Goal Consumer Group

These APIs are categorized by the business entities they help: business-to-business (B2B), business-to-business-to-consumer (B2B2C), government-to-business (G2B), government-to-business-to-consumer (G2B2C), government-to-consumer (G2C), and lots of extra. The Amazon Promoting Associate API would fall beneath the B2B2C group, as it’s utilized by companies with customers as finish customers. The NASA APIs are G2B or G2C, as they’re supplied by a US authorities company.

3. Know-how

As APIs trade information and instructions, they require clear architectures and protocols. There are various kinds of APIs based mostly on the know-how used to construct the API, comparable to REST (representational state switch), RPC (distant process name), and SOAP (easy object entry protocol).

REST, generally generally known as RESTful, is probably the most extensively employed architectural model for designing networked functions. It’s based mostly on a set of rules that promote scalability, simplicity, and interoperability. REST APIs are primarily used for constructing net companies and are language-agnostic, enabling completely different shoppers to work together with the identical API. They supply a versatile strategy to constructing distributed methods, utilizing distinctive uniform useful resource identifiers and offering entry via normal HTTP strategies comparable to GET, POST, PUT, PATCH, and DELETE.

Managing APIs As Merchandise

There is no such thing as a single approach to divide or listing the important thing features of managing an API as lots of them intertwine or overlap, however right here I break down the assorted components that can assist you apply a product growth strategy to managing APIs.

API Product Technique

Product technique for APIs is much like digital product technique. It’s two-sided, protecting each the “why” and the “how.” The why is the necessity or downside you might be fixing—the last word objective for the API. The how is concentrated on the technical execution—the way you’ll remedy the issue.

As with all product, it’s necessary for the API product technique to be aligned along with your group’s total technique and enterprise mannequin. With a health app, for instance, a strategic objective could be to extend each the variety of customers and person retention charges. One of many methods to help this could be to hook up with a person’s well being information in order that their expertise turns into seamless. To do that, you may use Apple HealthKit and Android Health Connect.

For some corporations, the API is the core of the enterprise. Take the instance of Stripe, a fee companies supplier that lets retailers settle for debit playing cards, bank cards, and different funds. On this occasion, firm technique is the de facto API technique, and success or failure of the API is straight associated to the enterprise total.

Different organizations might have a enterprise mannequin that the API will straight help. A very good instance could be a standard financial institution providing a companion API to help open banking initiatives. Open banking allows customers and SMBs to share their financial institution and bank card transaction information securely with trusted third events that present them with functions, options, and companies to avoid wasting money and time.

Whether or not the API is the core of the enterprise, as with Stripe, or a supporting pillar, comparable to open banking enablement, technique alignment is essential.

API Design and Developer Expertise

Design is the method of deciding how one thing will work, look, and be used. Constructing an API requires making choices in regards to the interface, which could have implications for person interplay, security, and different components. A very good design helps the technique, bettering ease of integration, safety, and scalability so as to purchase extra customers.

With regards to designing APIs, person expertise (UX) is known as developer expertise (DX). The common developer could have sure expectations and necessities for an API, together with simplicity and ease of use, clear and complete documentation, consistency, error-handling and debugging help, and dependable efficiency. These ought to all inform the API design.

A great way to enhance DX is by organising a developer portal the place all of the sources for an API are available and neatly organized. Examples of such portals embrace PayPal Developer, Spotify for Developers, Stripe Developer tools, and Twilio Docs. Moreover, builders worth group and help, so options comparable to a community-driven roadmap, developer advocates, suggestions channels, and boards might be useful.

API Robustness and Safety

Robustness and safety are usually a part of API design and are equally necessary. Robustness refers back to the capability of an API to deal with sudden conditions and errors—making certain an API can stand up to excessive volumes of requests, recuperate from failures, and deal with numerous information codecs. If an API is just not sturdy, it might turn into unresponsive beneath a heavy load, leading to downtime or degraded efficiency for functions counting on it. This could have extreme penalties for each the appliance (lack of customers) and the API supplier (service-level settlement breach and ensuing damages).

Safety is about defending the API and the information it processes from breaches, unauthorized entry, and malicious assaults. If an API is just not safe, the results might be much like these above, with the extra threat of steep fines for information breaches.

API Improvement, Testing, and Deployment

Improvement, testing, and deployment are essential steps in making an API obtainable to customers and making certain its high quality, performance, and profitable integration. Throughout the growth section, the staff designs and implements the API by creating the mandatory endpoints, defining information buildings, establishing anticipated conduct, and so forth. Testing is required to validate efficiency and compatibility. Unit, integration, and end-to-end checks (amongst others) are carried out to guage the API’s conduct in real-world situations.

As soon as growth and testing are completed, the API is deployed to a manufacturing atmosphere. This includes configuration and making certain that the correct infrastructure and safety measures are in place. Steady integration and deployment practices are sometimes used to streamline this course of.

API Discovery, Analysis, and Integration

On the buyer aspect, discovery, analysis, and integration are the principle steps in connecting to and using an API. Simply as you’d as a product supervisor, as an API product supervisor, you need to stroll in your buyer’s footwear, contemplating these completely different phases, and excited about how one can meet buyer wants in the very best means. How can clients uncover your API? How can they be taught extra and take part in evaluating it? How is the combination course of designed? These concerns tie into DX, design, and technique.

API Governance and Steady Improvement

API governance refers back to the set of processes, insurance policies, and controls applied to make sure efficient administration, utilization, and compliance. An API is a stay, repeatedly evolving system, which implies it’s by no means totally completed. As new clients use the API, completely different use circumstances might come up, and new options can be added. To watch and handle this, good governance is significant. Of their e book Continuous API Management, authors Mehdi Medjaoui et al., describe three examples along with real-life use circumstances of governance patterns:

  • Design authority: PayPal’s central design staff validates all new API designs.
  • Embedded centralized specialists: HSBC has a community of API champions to help native mission groups.
  • Influenced self-governance: Spotify applies an strategy referred to as Golden Path, offering a catalog of really helpful instruments and companies to engineering groups which were endorsed by the design authority.

API Metrics

Metrics are important for managing and measuring the success of an API, as they supply insights into efficiency, utilization, and well being. The principle success components for an API replicate what issues to the tip clients. In her e book API Analytics for Product Managers, Deepa Goyal, product technique lead at Postman and former head of API expertise at PayPal, divides API metrics into three classes:

  1. Infrastructure metrics, which cowl product efficiency, utilization, and reliability
  2. Enterprise metrics, which cowl income, adoption, and operations
  3. Product metrics, which span a number of completely different phases, together with discovery, engagement, acquisition, activation, retention, and expertise

Goyal additionally supplies examples of those metrics, as proven within the desk beneath:

API Metrics



  • Uptime and downtime
  • Common and max latency
  • Errors per minute


  • CPU and reminiscence utilization
  • Requests per minute
  • Most-used endpoints
  • Concurrent connections


  • Imply time to failure
  • Imply time to restore
  • Fee of failure prevalence



  • Month-to-month recurring income
  • Common income per account
  • Income by acquisition channel



  • Value of infrastructure
  • Incidents monthly
  • Value of outages



  • Distinctive guests
  • Web page views
  • Signal-ups


  • Common time on web page
  • Bounce charge
  • Engagement with instruments


  • Every day person sign-ups
  • Time to first Howdy, World
  • Software program growth equipment and model adoption


  • Time to first transaction
  • Lively customers
  • Cohort evaluation


  • Recurring utilization
  • Buyer retention
  • API calls per enterprise transaction


  • Distinctive API clients
  • Prime clients by API utilization
  • Conversion charge
  • Web Promoter Rating
  • Every day help tickets per energetic person

This is only one approach to categorize API metrics; the way you select to trace and make the most of metrics will rely upon your online business context. There’s an enormous distinction between business APIs comparable to Stripe, the place excessive significance can be given to issues like adoption metrics, market share, and earnings per person, and inside APIs, the place the objective is to not conquer a market however to share capabilities or enhance processes.

Consider the API As a Product

As APIs turn into more and more prevalent and necessary to enterprise operations, you will need to implement a powerful API administration answer. Managing an API as a product means at all times conserving the tip person in thoughts and making certain alignment with organizational targets. It means excited about DX, governance, robustness, safety, testing, and deployment. It additionally means measuring API success utilizing related metrics.

Should you haven’t but created an API in your group, deal with the framework above as a blueprint for growth and implementation. If you have already got an API, or a number of APIs, think about using these finest practices to strengthen and enhance high quality and efficiency. When you might not have beforehand considered an API as a product, adopting this attitude can provide you larger management and improved insights, permitting you to make the most of product administration experience so that every API higher serves your online business.