Build a custom payment experience for less with the Helcim API.
Designed for developers. Built for businesses. Integrate Helcim’s extensive payment APIs and webhooks on your website, app, or platform without the contract or hidden fees.
Designed for developers. Built for businesses. Integrate Helcim’s extensive payment APIs and webhooks on your website, app, or platform without the contract or hidden fees.
Best for Cheap
Payment Processing, 2023
Best for High-Volume
Sellers, 2025
Best for Overall
Payment Processor, 2024
Best for Small
Business, 2023
Best and Cheapest for
Growing Businesses, 2024
Best for Custom
Rates, 2025
One account gives you access to the Helcim APIs and webhooks, offering everything you need to build your custom payment flow.
Process credit, debit, and ACH payments through your existing website or application. Payment types include Purchase, pre-authorization, capture, verify, refund, and reverse payments.
Connect and send transactions to Helcim Smart Terminal, directly from your existing third-party point-of-sale system.
Create, retrieve, and update invoices that link to HelcimPay.js and our Processing API.
Easily manage customers and their payment methods featuring endpoints to create, retrieve, update, and set default payment options.
Manage all aspects of your Helcim subscriptions, including processing transactions, creating customers, tokenizing payment methods, and handling plans, add-ons, and sending payment links.
Get notified instantly with webhooks for any card transaction processed through Helcim.
View and settle your credit card batches from your existing system.
Reconcile your payments or display charges to customers by retrieving your transactions from the Card Transaction API.
Low code option for embedding a complete payment modal into your checkout flow.
Create, customize, and process ACH payments for your customers from your existing website or application.
Collect payments without handling sensitive information no matter what setup you have.
Helcim Payment Extension lets you integrate Helcim to hundreds of web-based platforms across various industries.
Explore integrations
Powerful payment tools, amazing low rates, excellent customer service, and straightforward documentation– you can have it all with Helcim.
Manage payments, subscriptions, and invoicing all within one platform-no more juggling between multiple providers.
Learn moreGet started faster with easy-to-follow guides, code samples, and detailed API references.
Book a demoGet 25% average savings on merchant rates, automatic volume discounts, and even partner revenue if you . No fuss, just savings.
See our pricingNo bots here. You’ll talk to a real human who knows the ins and outs of the platform.
Find out how businesses from multiple industries have seen success with Helcim.
Peace of mind shouldn’t cost extra. Accept online and in-person payments securely as we ensure the security of your transactions. Keep your card information safe with advanced tools such as data encryption, tokenization, and more.
PCI Data Security Standards with no added fees for data encryption, tokenization & key management.
Protect your customers’ card information and store it securely in our credit card vault.
Take advantage of Helcim Fraud Defender and avoid costly fraudulent transactions.
You can sign up for a Helcim account for free
Online Fee Saver requires merchants to be eligible for ACH payments. In-Person Fee Saver via the Smart Terminal does not require ACH however it is not available to merchants in Connecticut, Colorado, Maine, Massachusetts, Oklahoma, and Quebec.
Helcim offers transparent pricing with no monthly fees or long-term contracts—just straightforward transaction fees.
The Helcim API is a RESTful API and you can integrate with it from a website, application, or software that is programmed in any language. API References in DevDocs are a great way to view what requests to the Helcim API would look like in a range of languages a developer might use.
Helcim is PCI-compliant and uses encryption and tokenization to secure payment data so it doesn’t touch your servers and website when used with HelcimPay.js.
Yes, with HelcimPay.js you have the flexibility to pass on fees for online transactions and via the Smart Terminal API for in-person transactions.
Yes! Helcim offers partnership opportunities for integrators, developers, and platforms looking to embed payment capabilities into their solutions.
Not only can you generate revenue through our Integration Partner Program, but you’ll also be giving your clients access to affordable, transparent payment processing—helping them save money while you grow your business.
Learn more and apply here: Helcim Integration Partners
Speak to a real person who can answer your payment questions.
Call us, book a demo, or fill out the form to learn:
