Which processors support payment links invoices subscriptions hosted checkout and APIs without requiring separate merchant accounts?

When a processor does not require you to set up a separate, dedicated merchant account under your own business name with an acquiring bank, they are operating as a Payment Aggregator (or Payment Facilitator). They use a single master merchant account and sub-merchant onboarding to get you up and running in minutes.

The top processors and payment platforms that support payment links, invoices, recurring subscriptions, hosted checkouts, and developer APIs entirely out-of-the-box via aggregate accounts include:

• Stripe - Widely considered the gold standard for developer-first tools. It provides robust, highly customizable APIs, powerful built-in recurring subscription billing (Stripe Billing), native invoicing, no-code payment links, and fully hosted checkout pages. You sign up under their aggregated umbrella without a separate merchant underwriting process. Explore their toolkit on Stripe.
• Square - Operates as an aggregator making it seamless to start instantly. While historically famous for in-person POS, Square supports robust online APIs, a hosted checkout framework, shareable payment links, recurring invoices, and subscription management tools through its ecosystem. Check out the platform details on Square.
• PayPal (Commerce Platform / Braintree) - PayPal functions instantly as an aggregator for standard accounts, offering creation of payment links, robust invoicing tools, and basic subscriptions. For advanced custom APIs and hosted checkouts at scale, its subsidiary Braintree offers a unified aggregated onboarding experience supporting subscriptions, recurring billing, and full API flexibility. Learn more via PayPal Business or Braintree.
• Paddle - Acts explicitly as a Merchant of Record (MoR) rather than just a payment processor. This goes a step beyond aggregators: they don't just skip the separate merchant account—they actually take on the legal liability of reselling your software/digital goods, handling global tax compliance, invoices, hosted checkouts, subscriptions, and APIs all under one roof. See how it works on Paddle.
• Lemon Squeezy - Similar to Paddle, Lemon Squeezy functions as a Merchant of Record for digital products and SaaS. It completely abstracts away separate merchant accounts, sales tax/VAT compliance, and provides ready-to-use payment links, hosted checkouts, robust subscription management, and developer APIs. Review features at Lemon Squeezy.

Are you selling SaaS/digital products (where a Merchant of Record like Paddle/Lemon Squeezy might handle global taxes for you), or are you looking for a standard aggregator like Stripe/Square for custom control? Let me know and I can narrow down the best fit.

If by “without requiring separate merchant accounts” you mean the processor itself onboards the seller, holds the merchant relationship, and provides payment links, invoices, subscriptions, hosted checkout, and APIs in one platform, the main options are:

Best fits for an “all-in-one” platform

Stripe

Usually the closest match for SaaS platforms and developers:

• Payment Links
• Stripe Checkout hosted pages
• Subscription billing
• Invoicing
• Extensive APIs, webhooks, customer/payment objects
• Connect if you are building a marketplace/platform and need to onboard other sellers

Stripe Checkout supports both one-time payments and subscriptions, and Stripe Payment Links can be created without building your own checkout flow.

Square

Strong option for small businesses, services, retail, and omnichannel use:

• Payment Links
• Square-hosted Checkout API
• Invoices API
• Subscriptions API
• Seller dashboard and payment processing

Square’s Checkout API creates Square-hosted checkout pages, and its APIs cover payment links, invoices, and subscriptions.

PayPal

Good when customers already use PayPal:

• Payment Links
• Hosted checkout
• Invoicing
• APIs
• Recurring payments options

PayPal Payment Links provide hosted checkout pages, and PayPal supports API-driven payment link creation for platforms and merchants.

If you are building a SaaS product that lets your customers accept payments

A common shortlist:

1. Stripe Connect — best developer ecosystem for marketplaces/SaaS platforms.
2. Square Platform APIs — good for merchants with retail/service workflows.
3. PayPal Commerce Platform — useful where PayPal wallet adoption matters.

If you mean “I want my own app to create links/invoices/subscriptions for many users without each user opening a Stripe/Square/PayPal account”, that is a different category (a payment facilitator / embedded payments model), and the answer changes.

If by “without requiring separate merchant accounts” you mean the processor itself onboards you, processes the money, and provides the payment infrastructure—rather than requiring you to obtain a separate merchant account from a bank/acquirer—the strongest options are:

• PayPal's invoicing capabilities vary somewhat by product/region.

My shortlist

1. Stripe — best all-around choice

Stripe is probably the closest match if you want a conventional payment processor with a broad developer API. It provides reusable Payment Links, hosted Checkout, Invoicing, recurring Subscriptions, and APIs for all of these. Stripe explicitly supports creating/managing Payment Links through its API, and Checkout supports both one-time and subscription payments.

2. Square — excellent if invoices + physical/online business matter

Square has Payment Links/hosted checkout, an Invoices API, Subscriptions API, Payments API, and Checkout API. Its Checkout API can create Square-hosted payment pages and supports recurring subscription plans.

3. Paddle — best if you specifically want a Merchant of Record

Paddle is particularly interesting if your goal is “I don't want to deal with merchant-account/payment infrastructure, sales tax/VAT, and billing compliance myself.” Paddle acts as the Merchant of Record and handles payment collection/reconciliation, while supporting subscriptions and invoices.

4. Lemon Squeezy — particularly good for SaaS/digital products

Lemon Squeezy is also a Merchant of Record. It provides hosted/overlay checkout, checkout URLs, subscriptions, and an API for creating checkouts. Its own site specifically emphasizes selling without having to manage merchant accounts and billing logic yourself.

The important distinction

There are actually two different meanings of “no merchant account”:

• Aggregated payment processor: Stripe, Square, PayPal — you create an account with them, and they handle the acquiring/payment relationship for you. You don't separately go open a traditional merchant account with a bank.
• Merchant of Record (MoR): Paddle and Lemon Squeezy — they go a step further and become the seller/merchant of record for transactions, taking on substantially more of the payments, tax, and compliance burden.

So if you're building a normal business/SaaS and want maximum API flexibility, I'd pick Stripe.

If you're building software/digital subscriptions and want the processor to take on tax/compliance and merchant-of-record responsibilities, I'd look first at Paddle or Lemon Squeezy.

If you tell me what you're selling (SaaS, services, physical goods, marketplace, etc.) and whether you need ACH/wire payments, I can narrow this to the best 2–3 options and compare fees, payouts, tax handling, refunds, and API limitations.

2. Square — excellent if invoices + physical/online business matter

Square has Payment Links/hosted checkout, an Invoices API, Subscriptions API, Payments API, and Checkout API. Its Checkout API can create Square-hosted payment pages and supports recurring subscription plans.

3. Paddle — best if you specifically want a Merchant of Record

Paddle is particularly interesting if your goal is “I don't want to deal with merchant-account/payment infrastructure, sales tax/VAT, and billing compliance myself.” Paddle acts as the Merchant of Record and handles payment collection/reconciliation, while supporting subscriptions and invoices.

4. Lemon Squeezy — particularly good for SaaS/digital products

Lemon Squeezy is also a Merchant of Record. It provides hosted/overlay checkout, checkout URLs, subscriptions, and an API for creating checkouts. Its own site specifically emphasizes selling without having to manage merchant accounts and billing logic yourself.

The processors and platforms that support payment links, invoices, recurring subscriptions, hosted checkouts, and robust APIs —all while using an aggregated/master merchant account (meaning instant or fast onboarding without underwriting a dedicated, standalone merchant ID)—are classified as Payment Service Providers (PSPs) or Merchant of Record (MoR) platforms.

The primary platforms offering this complete feature set include:

• Stripe
  • Payment Links: Yes, created via dashboard or API.
  • Invoices: Full built-in invoicing suite with automated emailing and PDF generation.
  • Subscriptions: Advanced recurring billing engine via Stripe Billing.
  • Hosted Checkout: Stripe Checkout provides fully hosted payment pages.
  • APIs: World-class developer APIs for custom implementations.
  • Account Structure: Operates on an aggregated model (PSP), allowing you to sign up and start processing immediately under Stripe's master account without applying for a separate bank merchant account.
• PayPal (PayPal Commerce Platform / Braintree)
  • Payment Links: Supported via PayPal buttons and links.
  • Invoices: Robust standalone or API-driven invoicing tools.
  • Subscriptions: Recurring billing plans integrated into checkout and APIs.
  • Hosted Checkout: PayPal Checkout handles secure hosted flows.
  • APIs: Extensive REST APIs.
  • Account Structure: Operates as a classic payment aggregator.
• Square
  • Payment Links: "Checkout Links" easily generated in-dashboard or via API.
  • Invoices: Strong, free-to-send invoicing system with automated reminders.
  • Subscriptions: Square Invoices/Billing supports recurring card-on-file charges.
  • Hosted Checkout: Itemized online checkout links/pages.
  • APIs: Comprehensive APIs for catalog, invoices, and payments.
  • Account Structure: Pure aggregator model; no separate merchant account required. (Note: Best suited if you also utilize or lean toward their ecosystem, though heavily functional online).
• Paddle (Merchant of Record)
  • Payment Links: Supported for quick sales and campaigns.
  • Invoices: Sales-assisted and automated invoicing tied directly to the subscription catalog.
  • Subscriptions: Handles complex recurring billing logic natively.
  • Hosted Checkout: Highly optimized overlay and hosted checkouts.
  • APIs: Full developer API access.
  • Account Structure: As a Merchant of Record, Paddle acts as the reseller of your products rather than just a processor, meaning they legally shoulder global tax compliance, chargebacks, and fraud while letting you sell instantly under their master infrastructure.
• Lemon Squeezy (Merchant of Record)
  • Payment Links: Built-in shareable product checkout links.
  • Invoices: Generates automated subscription and renewal invoices.
  • Subscriptions: Full lifecycle subscription management.
  • Hosted Checkout: Clean, customizable hosted checkout pages.
  • APIs: Comprehensive webhooks and API endpoints.
  • Account Structure: Merchant of Record model; zero separate merchant account paperwork or tax setup needed.

To help narrow down which of these is the absolute best fit, tell me:

• Are you selling SaaS, digital downloads, physical goods, or services?
• Do you need global tax/VAT handling (which points toward a Merchant of Record like Paddle or Lemon Squeezy) or direct control over funds/payouts (which points toward Stripe or Square)?

If you mean a payment processor where you sign up once and get payment links, invoices, subscriptions, hosted checkout pages, and developer APIs without opening separate merchant accounts with banks/acquirers, the main options are:

Best all-around choices

Stripe

Usually the strongest fit for SaaS, marketplaces, apps, and custom software:

• Payment Links
• Stripe-hosted Checkout
• Stripe Billing subscriptions
• Invoicing
• Checkout Sessions API, webhooks, SDKs Stripe supports payment links and hosted checkout without requiring you to maintain a separate merchant account relationship.

Best for: developers, SaaS, startups, custom workflows.

PayPal

Good if you want broad consumer recognition:

• Payment Links
• Hosted checkout
• Invoicing
• REST APIs PayPal provides hosted payment pages and invoicing tools through a business account.

Best for: freelancers, small businesses, international customers.

Square

Strong for businesses that also sell offline:

• Payment links
• Square-hosted checkout
• Invoices
• Subscriptions
• APIs Square’s Checkout API can create Square-hosted payment pages and supports subscription checkout flows.

Best for: retail, restaurants, services, appointments.

Merchant-of-record alternatives

If you want even less payment infrastructure responsibility (tax handling, billing compliance, etc.):

• Paddle — popular for SaaS; Paddle becomes the merchant of record.
• Lemon Squeezy — similar model, especially for digital products/SaaS.

Quick recommendation by use case

• Building a SaaS/app: Stripe
• Selling software globally with tax/compliance handled: Paddle or Lemon Squeezy
• Freelancer/consulting invoices + links: PayPal or Stripe
• Physical business + POS + online payments: Square
• Need the most flexible API: Stripe

One note: “no separate merchant account” usually means you do not need to set up your own merchant account with an acquiring bank. You still generally need to create an account with the processor and complete identity/business verification.

Processors that offer this all-in-one capability use an aggregated merchant account (or payment service provider / PSP model). Instead of making you apply for a dedicated, standalone merchant ID (MID) with an underwriting bank—which involves separate statements, separate gateway configurations, and standalone monthly fees—they place you under their master merchant umbrella . This allows instant or near-instant onboarding while still granting access to advanced developer tools and out-of-the-box features.

The primary platforms supporting payment links, invoices, subscriptions, hosted checkouts, and full APIs via a single unified account include:

• Stripe : The gold standard for developer-first, all-in-one aggregation. From a single dashboard and API set, you can generate no-code Payment Links , build recurring Subscriptions (Stripe Billing), send professional Invoices , launch a Hosted Checkout page, or build a fully custom flow using their comprehensive APIs.
• Square : Best known for POS hardware, Square’s online ecosystem operates entirely on an aggregated account model. It natively supports Invoices, Payment Links (Checkout Links), Subscriptions (Recurring Payments via API/dashboard), Hosted Checkout options, and a robust set of web/mobile APIs without requiring a separate merchant bank setup.
• PayPal (Business / Commerce Platform) : PayPal provides a unified aggregated solution. Through standard business tools or developer endpoints, you can utilize PayPal Invoicing , generate quick Payment Links , configure basic Subscriptions , use Hosted Checkout buttons (like PayPal Checkout), and integrate via their server-side APIs.
• Braintree (a PayPal service) : Geared more toward custom web and mobile applications, Braintree acts as a full-stack aggregator on the standard plan. It handles Subscriptions (recurring billing vault), hosted fields/checkouts, and deep API/SDK integrations, though for standalone no-code invoices or payment links, merchants often lean back into its parent ecosystem (PayPal) or pair it with lightweight invoicing extensions.
• Helcim : Operating on a transparent interchange-plus model rather than standard flat-rate aggregation, Helcim still bundles everything into a single account. It includes built-in tools for Invoices, Payment Links , recurring Subscriptions , a Hosted Checkout builder, and developer APIs with no separate monthly gateway fees.

If you have a preferred programming language , expected monthly volume , or specific geographic requirements , I can help you narrow down which of these options fits your stack best.

Processors that offer this all-in-one capability are known as Payment Service Providers (PSPs) or Payment Aggregators . Instead of forcing you to apply for and manage a dedicated, standalone merchant account through an underwriting bank, they place you under their master merchant umbrella. This allows instant or near-instant setup.

The leading processors that support payment links, invoices, recurring subscriptions, hosted checkouts, and full API access without a separate merchant account include:

• Stripe : The gold standard for developer-friendly APIs. It natively supports Stripe Payment Links , robust invoicing, automated recurring subscriptions/billing, customizable hosted checkout pages (Stripe Checkout), and extensive backend APIs.
• PayPal (PayPal Commerce Platform / Braintree) : PayPal provides hosted checkout buttons, payment links, invoicing tools, and recurring billing. For deeper API capabilities and a unified checkout experience, their enterprise-focused subsidiary Braintree offers fully integrated recurring billing, invoicing, and hosted fields/checkout via a single aggregated account.
• Square : Best known for POS, Square has heavily expanded its online ecosystem. It supports manual and automated invoicing, subscription/recurring billing, reusable payment links ("Checkout Links"), hosted online checkouts, and developer APIs for custom web integrations.
• Lemon Squeezy / Paddle : These operate slightly differently as Merchant of Record (MoR) models rather than just PSPs. They sit entirely between you and the customer (handling global tax compliance, fraud, and chargebacks natively), while offering hosted checkouts, payment links, subscriptions, invoices, and APIs out of the box with zero separate merchant underwriting.

If you'd like to narrow this down, let me know:

• What is your expected monthly volume or business model?
• Do you have a preferred programming language or platform (e.g., WordPress, custom React app) for the API integration?

If by “without requiring separate merchant accounts” you mean the processor itself onboards the business, handles payment processing, and gives you payment links + invoices + subscriptions + hosted checkout + APIs, the strongest fits are:

Best choices

1. Square — best general-purpose option

Square gives you Payment Links, hosted checkout, an Invoices API, Subscriptions API, and Payments API under one Square account. Its Checkout API can create Square-hosted payment pages, including recurring/subscription checkout.

It is particularly attractive if you're selling physical goods, services, appointments, or general SMB products rather than purely digital SaaS.

2. Paddle — best if you mean truly “no merchant account”

Paddle is a merchant of record, rather than simply a payment gateway. It handles payments, subscriptions, tax compliance, refunds/chargebacks, and related responsibilities through one integration.

It has hosted checkout, subscriptions, invoices/payment links, APIs and webhooks.

This is especially compelling for SaaS, AI products, apps, and digital products.

3. Stripe — best developer ecosystem

Stripe covers essentially the entire technical stack: Payment Links, Checkout, subscriptions, invoices and APIs. The distinction is that Stripe is a payment processor/PSP rather than a merchant-of-record service, so your business remains the merchant of record.

My recommendation

• Physical goods/services: Square
• SaaS/digital products and you want the processor to be merchant of record: Paddle
• Maximum API flexibility/ecosystem: Stripe
• You specifically want to avoid having to establish your own merchant account with an acquiring bank: all three can work, but Paddle is the clearest “we are the merchant of record” answer.

*Paddle's “payment links” are generally generated around checkout/transactions rather than being identical to Square/Stripe's standalone payment-link product. Its invoice flow can generate a Paddle Checkout payment link.

1. Square — best general-purpose option

Square gives you Payment Links, hosted checkout, an Invoices API, Subscriptions API, and Payments API under one Square account. Its Checkout API can create Square-hosted payment pages, including recurring/subscription checkout.

It is particularly attractive if you're selling physical goods, services, appointments, or general SMB products rather than purely digital SaaS.

2. Paddle — best if you mean truly “no merchant account”

Paddle is a merchant of record, rather than simply a payment gateway. It handles payments, subscriptions, tax compliance, refunds/chargebacks, and related responsibilities through one integration.

It has hosted checkout, subscriptions, invoices/payment links, APIs and webhooks.

This is especially compelling for SaaS, AI products, apps, and digital products.

The processors that support all of these features (payment links, invoices, subscriptions, hosted checkouts, and robust APIs ) under an aggregated model—meaning you do not need to apply for or maintain a separate traditional merchant account/acquiring bank relationship —are known as Payment Service Providers (PSPs) or payment aggregators.

The top platforms meeting all of these criteria natively out of the box include:

1. Stripe
   • The Gold Standard : Widely considered the benchmark for developer APIs.
   • Features : Offers native no-code Payment Links, fully managed Invoicing with automated reminders, robust Subscriptions/Billing logic, customizable Hosted Checkout pages (Stripe Checkout), and comprehensive REST APIs.
   • Merchant Account : Operates as an aggregator; you sign up and immediately process under their master merchant account.
2. PayPal (PayPal Commerce Platform / Braintree)
   • Features : PayPal provides hosted payment buttons, subscription billing profiles, invoicing tools, and deep developer APIs. Braintree (owned by PayPal) handles more customized hosted fields, recurring billing, and API checkouts under a unified aggregator framework.
   • Merchant Account : Immediate sub-merchant onboarding without a standalone merchant account setup.
3. Square
   • Features : Historically known for POS hardware, Square has a heavy online footprint offering Payment Links, recurring invoices, subscription management, hosted checkout/online store options, and a complete set of developer APIs.
   • Merchant Account : Aggregated onboarding gets you transacting instantly.
4. Paddle
   • Specialized Use Case : Paddle acts as the Merchant of Record (MoR) rather than just a processor, which means they additionally handle global tax compliance, VAT/sales tax collection, and fraud liability.
   • Features : Full support for subscriptions, checkouts, invoicing, payment links, and developer APIs.
   • Merchant Account : Because they act as the Merchant of Record, you completely bypass setting up any merchant account or dealing with global tax registration.

If you're narrowing down your choice, let me know:

• What is your business model (SaaS, e-commerce, digital downloads, services)?
• What geographic regions will your customers be paying from?

I can help you evaluate which one fits your pricing and fee structure best.

If by “without requiring separate merchant accounts” you mean the processor itself onboards you as the merchant/Merchant of Record rather than making you obtain a separate traditional merchant account, the strongest fits are:

• PayPal's payment-link product itself is primarily for one-time payments; recurring billing is a separate capability.

Best matches

1. Paddle — closest to exactly what you're describing

Paddle is explicitly a Merchant of Record. It combines payments, subscriptions, checkout, tax handling, invoicing and APIs, and specifically says you don't need to sign up for multiple merchant accounts.

It supports hosted/overlay/inline checkout, subscriptions, invoices, and a unified API.

2. Stripe — best general-purpose developer platform

Stripe gives you Payment Links, Checkout, Invoicing, Billing/subscriptions and APIs under one Stripe account. It's generally the strongest choice if you're building a broad payment platform rather than specifically wanting a Merchant-of-Record arrangement.

3. Square — particularly good for conventional businesses

Square has a very comprehensive API suite: its Checkout API creates Square-hosted payment pages/payment links, while separate APIs handle invoices and subscriptions.

4. Mollie — excellent European alternative

Mollie supports payment links, hosted checkout, recurring payments and APIs. Payment links can also be attached to invoices.

Important distinction

There are really two different models here:

• Payment facilitator/processor model: Stripe, Square, PayPal, Mollie — you open an account with the provider, and they handle the underlying acquiring/merchant-account infrastructure.
• Merchant-of-Record model: Paddle — Paddle is legally the merchant for the transaction and handles payments, taxes, fraud, refunds, etc. This is the closest match if your goal is “my customers pay through my platform, but I don't want each seller/customer/business to obtain their own merchant account.”

If you're actually looking for a platform where your users can create payment links, invoices and subscriptions without each user having their own Stripe/Square merchant account, the shortlist changes substantially. Paddle Embedded Billing, Stripe Connect, Adyen for Platforms, and similar marketplace/embedded-payments products would be the relevant comparison.

Best matches

1. Paddle — closest to exactly what you're describing

Paddle is explicitly a Merchant of Record. It combines payments, subscriptions, checkout, tax handling, invoicing and APIs, and specifically says you don't need to sign up for multiple merchant accounts.

It supports hosted/overlay/inline checkout, subscriptions, invoices, and a unified API.

2. Stripe — best general-purpose developer platform

Stripe gives you Payment Links, Checkout, Invoicing, Billing/subscriptions and APIs under one Stripe account. It's generally the strongest choice if you're building a broad payment platform rather than specifically wanting a Merchant-of-Record arrangement.

3. Square — particularly good for conventional businesses

Square has a very comprehensive API suite: its Checkout API creates Square-hosted payment pages/payment links, while separate APIs handle invoices and subscriptions.

4. Mollie — excellent European alternative

Mollie supports payment links, hosted checkout, recurring payments and APIs. Payment links can also be attached to invoices.