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API Hello world Support Contact us API Our API Learn about Authorize.net APIs and Products API documentation Integrate with our APIs with easy to read documentation. API reference Easy no-setup way to test our APIs – Out of the box samples with editable body - Send requests to our sandbox and see responses. Sample code on [GitHub] Sample codes published on GitHub for each REST API in popular languages SDKs on [GitHub] SDKs source code published on GitHub in popular languages API change log Track changes to our APIs over the years System change log Track changes to our System over the yearsLearn more API Reference API Reference View sample code and field descriptions. Send requests to the sandbox and see the responses. Visit the API reference Developer Guides Developer Guides View feature-level guides that contain API implementation prerequisites and use-case information. See our guides Hello, World! Hello World! Use these developer resources to make your first API call. Start with hello world Popular resources GitHub Repositories Explore Testing Guide Explore Response Codes Explore Authorize.net Community Forum Explore Upgrade Guide Explore FAQ Explore Developer blog Keep up to date with all our developer stuff What merchants need to know about risk and fraud Evolving customer expectations around seamless and digital-first payment experiences have opened new opportunities for fraudsters to exploit consumers and businesses. The Federal Trade Commission received over 440,000 reports of credit card fraud from consumers in 2022,1 an increase of 12% from 2021. And merchant studies have found that more than one-third of businesses have experienced first-party misuse2 and that rates of fraud are increasing. May 03, 2024 5 minute read What is an eCheck and why is it important for businesses everywhere? Usage of paper checks has been continuously declining. The latest data from the Federal Reserve shows that, on average, households in the U.S. use checks for only 12% of all bill payments.1 March 28, 2024 4 minute read Tips for business owners on tax day While an entrepreneur is accustomed to wearing multiple hats and being responsible for various aspects of their business, taxes are often one of the primary causes of frustration and stress. Being familiar with the different types of taxes can help you decide if you’re prepared to handle the task on your own or if it would be wise to seek professional assistance. March 19, 2024 5 minute read Boost your business with the best ways to get paid Accepting digital payments is easier than ever, and the systems payments run on are becoming a focal point of business management. On the flip side, how consumers pay for things has moved away from less efficient paper methods. ;In this environment, more types of business are experiencing the benefits of digital payments, like wholesale suppliers, waste management companies, and street vendors. February 22, 2024 5 minute read Authorize.net payment gateway is one of the industry-leading options revolutionizing the industry Listed as one of the top six payment gateways in The Strawhecker Group’s 2023 Payment Gateway Directory, Authorize.net covers nearly all verticals and geographic areas identified by TSG, making it one of the most well-rounded payment gateways to utilize. December 15, 2023 5 minute read Customer success story: Action Sport Optics LLC At Authorize.net, we know how powerful payments can be in helping transform businesses. To support our customers, we want to share their stories. November 21, 2023 3 minute read Inventory management tips to help grow your business If a business can manage its inventory and cash flow, it’ll likely continue to grow. However, nearly half of small businesses in the U.S. don’t track inventory or do so manually. These businesses are missing out on a major opportunity as there are many easy-to-use technology solutions for inventory management that can help monitor and report sales, stock levels, merchant relationships, supply, and demand. May 19, 2023 4 minute read Making recurring billing quick and easy for your business For business owners, scaling your business and managing that growth effectively is always top priority. The good news is, if your business operates on a subscription-based model, there are tools available that offer an easy way to automate and simplify payments. May 09, 2023 4 minute read What you need to know about card testing fraud Imagine waking up to find your site bombarded by thousands of transactions. Yipee!” you think. My hard work is paying off.” But you look closer and see that all the purchases are small, and the vast majority are declined for some reason. You realize they’re fraudulent. March 27, 2023 5 minute read See all Load More Articles Community feed Connect with our community Better together We are proudly working with over 440,000 companies of every size to help them grow their business and run it smoothly.Authorize.net Corporate blog Status How payments work Understanding credit card processing PCI compliance Find a partner Certification program Certified 3rd party products and services Cybersource.com Privacy Cookie policy Terms of use © 2018-2022. Authorize.net. All rights reserved. All brand names and logos are the property of their respective owners, are used for identification purposes only, and do not imply product endorsement or affiliation with Authorize.net. Open in a new...