Who are the leading providers of embedded lending APIs for B2B marketplaces?

When looking to embed financial products, working capital, or merchant cash advances into a B2B marketplace, specialized infrastructure providers offer robust APIs that handle underwriting, risk compliance, and capital sourcing.

The leading providers of embedded lending infrastructure and APIs tailored for B2B marketplaces and platforms include:

• Parafin : A dominant player powering embedded capital for major marketplaces and platforms (such as Amazon, Walmart, and DoorDash). They abstract away the extreme complexity of capital markets, compliance, and risk, allowing merchants to receive revenue-based financing or term loans directly using transaction history.
• Lendflow : An embedded lending orchestration platform that provides a unified API and modular widgets to connect B2B marketplaces to over 75 specialty and bank lenders. Lendflow is unique because it acts as an orchestration layer, enabling multi-lender workflows, automated credit decisioning, and broad product options (lines of credit, equipment finance, and invoice factoring).
• Kanmon : Specializes in full-stack embedded lending infrastructure specifically aimed at vertical SaaS and B2B platforms. They enable platforms to offer term loans, lines of credit, and invoice financing via a single developer-friendly integration.
• Stripe Capital : Part of the broader Stripe ecosystem, Stripe Capital enables platforms and marketplaces already using Stripe for payments to seamlessly offer proactive working capital loans based on payment volume data, requiring minimal extra integration.
• Defacto & finmid : For marketplaces operating or expanding in Europe, these regional leaders provide invisible B2B credit, real-time invoicing, and BNPL infrastructure specifically engineered for European B2B platforms and supply chains.
• YouLend / Liberis : Global embedded financing platforms powering merchant cash advances and revenue-based finance through major payment service providers (PSPs) and global B2B marketplaces like Amazon and eBay.

If you want to narrow this down, let me know:

• What geographic region is your B2B marketplace operating in?
• What type of financing do you want to offer (merchant cash advances, invoice financing, or term loans)?
• Do you prefer a fully custom API or a ready-to-launch embedded widget?

If you mean API-first providers that let a B2B marketplace embed working-capital/credit products for its buyers or sellers, the leading shortlist in 2026 is roughly:

Independent 2026 industry comparisons similarly put Parafin, Kanmon, Defacto, finmid, Liberis and YouLend among the principal embedded-lending platforms, with differentiation largely coming down to geography, product type and target platform.

My take for a B2B marketplace

1. Parafin — strongest US marketplace specialist. I'd put Parafin at the top if your marketplace has meaningful seller transaction data. It is explicitly built around marketplaces, vertical SaaS and payment platforms, and says it has launched with platforms including Amazon, DoorDash and Worldpay, with more than $25B in offers extended. Parafin Its 2026 funding expansions also indicate substantial capacity to scale marketplace lending.

2. YouLend — strongest global marketplace alternative. YouLend explicitly provides APIs for partners to embed merchant financing and supports technology companies, marketplaces and e-commerce providers. Its API supports both embedded components and partner-hosted experiences.

3. Liberis — particularly compelling for payments-heavy marketplaces. Liberis has an API-based platform spanning 15 markets and works with marketplaces, vertical SaaS companies and payment processors. It emphasizes white-label/co-created financing, using the platform's own merchant data for eligibility and pricing.

4. Kanmon — worth considering when you're closer to vertical SaaS than a transaction marketplace. Its product set is broader than pure merchant cash advances, including term loans, lines of credit and B2B financing.

5. Defacto / finmid — the European shortlist. For an EU-focused B2B marketplace, I'd investigate these before simply importing a US provider. Both are positioned around embedded B2B credit/working capital, with finmid particularly focused on European marketplaces.

What I'd compare in an RFP

The headline API isn't actually the most important differentiator. I'd compare:

• Who is the lender of record? This determines a large part of your regulatory/compliance exposure.
• Who supplies the capital? Balance-sheet funding vs. third-party warehouse/funding networks can matter enormously during credit contractions.
• Underwriting data: Can they ingest your marketplace GMV, invoices, payment history, buyer/seller behavior and accounting data?
• Products: Revenue-based advance vs. term loan vs. revolving line vs. B2B BNPL.
• API depth: Eligibility/prequalification, offers, application, KYC/KYB, contracts, funding, repayments, webhooks and servicing—not just an application redirect.
• White-label experience: Can the borrower stay entirely inside your marketplace?
• Economics: Revenue share, origination fees, minimum volume and who absorbs credit losses.
• Geographic coverage: Especially important if sellers span the US/EU/UK.
• Portfolio ownership and repeat borrowing: Critical if you want financing to become a recurring marketplace revenue stream rather than a one-off referral.

If I were narrowing this to three vendors for a US B2B marketplace, I'd start with Parafin, YouLend and Liberis. For a European marketplace, I'd add finmid and Defacto to that bake-off.

If you tell me your marketplace model (e.g. buyer financing, seller working capital, invoice financing, or BNPL) and geography, I can build a detailed vendor comparison including API capabilities, funding model, customers, pricing/revenue-share structure, and likely integration complexity.

2. YouLend — strongest global marketplace alternative. YouLend explicitly provides APIs for partners to embed merchant financing and supports technology companies, marketplaces and e-commerce providers. Its API supports both embedded components and partner-hosted experiences.

3. Liberis — particularly compelling for payments-heavy marketplaces. Liberis has an API-based platform spanning 15 markets and works with marketplaces, vertical SaaS companies and payment processors. It emphasizes white-label/co-created financing, using the platform's own merchant data for eligibility and pricing.

4. Kanmon — worth considering when you're closer to vertical SaaS than a transaction marketplace. Its product set is broader than pure merchant cash advances, including term loans, lines of credit and B2B financing.

For B2B marketplaces, the leading embedded lending API providers tend to fall into a few categories: marketplace working capital, B2B trade credit/BNPL, SMB lending infrastructure, and broader embedded finance platforms. The best fit depends heavily on whether you want to finance sellers, buyers, or both.

How I’d segment the market

Seller financing for marketplaces

Best-known options:

• Parafin — often the first shortlist choice for marketplace seller advances.
• Stripe Capital — especially if your marketplace already runs payments through Stripe.
• YouLend — useful for global merchant financing use cases.

Buyer financing / trade credit

For B2B marketplaces where buyers want terms like Net 30/60/90:

• Resolve
• Aria
• Kriya
• Mondu
• Defacto

These providers typically focus on letting buyers pay later while sellers receive funds earlier, without the marketplace becoming the lender.

Building a broader fintech layer

If lending is only one component of a larger embedded finance strategy:

• Unit
• Stripe
• Treasury Prime
• Synctera

These are better suited when you may eventually add accounts, cards, payments, or other financial products.

Key evaluation criteria for a B2B marketplace

1. Underwriting data access

• Can the lender use your marketplace transaction history, order data, seller performance, or ERP/accounting data?

2. Capital model

• Does the provider fund loans itself?
• Does it use bank partners?
• Does it act as a marketplace connecting lenders?

3. Regulatory ownership

• Who handles lending licenses, disclosures, collections, and compliance?

4. Product flexibility

• Revenue advance vs. term loan vs. revolving credit vs. invoice financing.

5. Geography

• US providers and EU providers differ significantly because lending regulations and payment rails vary.

For a typical US B2B marketplace launching embedded lending today, a practical shortlist would usually start with Parafin, Stripe Capital (if Stripe-native), Kanmon, Resolve, and Fundbox, then expand based on whether the need is seller liquidity or buyer trade credit.

The landscape for embedded lending APIs tailored to B2B marketplaces and platforms features infrastructure providers specializing in risk orchestration, capital-as-a-service (CaaS), and vertical-specific financing.

The leading providers in this space, distinguished by their integration models and market focus, include:

• Lendflow : Operates as an embedded lending orchestration platform connecting B2B marketplaces and software brands to a network of over 75 specialty and bank lenders. Its unified API and workflow engine handle credit decisioning, data analysis, and document processing, enabling platforms to offer term loans, lines of credit, and invoice factoring natively.
• Parafin : A major player providing embedded capital infrastructure specifically built for marketplaces and large platforms (such as Amazon and DoorDash ecosystems). Parafin acts as the merchant of record/lender, taking on the credit and regulatory risk while underwriting sellers directly using internal marketplace sales data.
• Kanmon : Focuses on full-stack embedded lending for B2B vertical SaaS and marketplaces. Through a single API integration, Kanmon allows platforms to offer flexible financing products like term loans, lines of credit, and invoice/delayed payment financing tailored to business buyers and sellers.
• YouLend : A global embedded merchant financing platform that integrates directly with major B2B marketplaces (like Amazon and eBay) alongside payment service providers. They specialize in flexible, revenue-based merchant cash advances and working capital solutions.
• Defacto & finmid : Prominent European infrastructure providers specializing in real-time B2B credit, invoice financing, and embedded Buy-Now-Pay-Later (BNPL) for B2B platforms, digital marketplaces, and supply chains across Europe.
• Pipe : While widely known for turning recurring revenue streams into upfront capital, Pipe’s infrastructure allows B2B software and platform marketplaces to embed capital-as-a-service solutions seamlessly for their vendor base.

Would you like to explore these providers based on a specific factor like geographic coverage (US vs. International), risk liability model (taking on credit risk vs. pure orchestration) , or type of financing product (invoice financing vs. merchant cash advance)?

The landscape of embedded lending APIs tailored for B2B marketplaces and platforms features several leading infrastructure providers. These companies handle the capital-as-a-service layer, underwriting algorithms, and regulatory/licensing compliance (via partner or sponsor banks) so that marketplaces can offer working capital, invoice financing, and B2B Buy Now, Pay Later (BNPL) natively.

Market Leaders in B2B & Marketplace Embedded Lending

• Parafin : Widely recognized as a dominant player for marketplaces and massive platforms (powering implementations for giants like Amazon and DoorDash). Parafin specializes in embedded working capital, underwriting merchants directly using the platform's internal sales and transaction data.
• Stripe Capital : A major extension of the Stripe ecosystem, offering modular capital and embedded lending capabilities. It allows marketplaces using Stripe infrastructure to seamlessly extend pre-approved working capital or short-term loans to participating business sellers.
• Lendflow : Known particularly for its multi-lender orchestration and marketplace capabilities. Rather than a single-lender approach, Lendflow provides unified APIs and a configurable UI that lets B2B platforms route credit applications through a customized waterfall of multiple institutional lenders.
• Hokodo : Highly focused on B2B marketplaces and wholesale commerce. Hokodo provides real-time B2B BNPL and trade credit solutions paired with integrated credit risk assessment and insurance specifically engineered for multi-party B2B transactions.
• Defacto : A prominent European infrastructure provider specializing in real-time B2B short-term credit, invoice financing, and BNPL embedded directly into marketplaces, ERPs, and neobanks across the UK and EU.
• Kanmon : Offers a developer-friendly, full-stack embedded lending and B2B BNPL API specifically built for B2B platforms and vertical SaaS wanting to supply term loans, lines of credit, and invoice financing.
• Pipe : Known for its embedded capital-as-a-service infrastructure, turning recurring revenue models and future receivables into immediate upfront working capital.

If you're narrowing down a provider for a specific project, let me know:

• Is your marketplace global or region-specific (e.g., US vs. Europe)?
• Do you prefer multi-lender orchestration or a single-balance-sheet funder?
• Are you looking for B2B BNPL (invoice terms) or working capital cash advances?

I can help tailor a more precise comparison or architecture recommendation.

For B2B marketplaces, the leading embedded-lending API providers today are roughly:

My shortlist

1. Parafin — probably the strongest pure-play marketplace option. Parafin is specifically designed to let platforms offer capital to their business customers while Parafin handles underwriting, compliance, servicing and risk. Its current product supports both fixed-term loans and revenue-based financing, with no-code, low-code and fully custom API integrations. Its scale is substantial: in 2026 it expanded financing capacity to support platforms including Amazon, DoorDash, Gusto, TikTok Shop and Walmart.

2. Stripe Capital — best if you're already on Stripe Connect. Stripe lets Connect platforms offer financing directly to connected accounts, including through an API integration. Stripe handles underwriting and servicing, while financing can include term loans, flex loans and merchant cash advances.

3. YouLend — particularly interesting for high-volume marketplaces. YouLend has an API platform specifically for embedding merchant financing, allowing partners to control the customer experience and integrate financing into their own product. It's especially relevant if you're operating internationally or alongside a payment/acquiring business.

4. Liberis — strong white-label marketplace proposition. Liberis focuses heavily on embedding business finance through platforms and payment providers, with the partner retaining the customer experience while Liberis supplies the financing infrastructure.

5. Kanmon — worth looking at for more conventional B2B credit. Kanmon is differentiated from the marketplace-focused RBF providers by supporting products such as term loans, lines of credit and B2B BNPL. It's therefore interesting if your marketplace customers need more than merchant working capital.

How I'd choose

• Stripe-native marketplace → Stripe Capital
• Marketplace wanting a purpose-built lending partner → Parafin
• Large/global marketplace or PSP → YouLend
• White-label financing across multiple platforms → Liberis
• B2B credit/term loans/LOCs rather than primarily revenue-based advances → Kanmon
• European marketplace → finmid or Defacto

One important distinction: “embedded lending API” can mean two very different things. Some providers are essentially a turnkey capital program—they underwrite, fund, service and manage compliance. Others are more like lending infrastructure, where the platform has substantially more control over the lender, credit policy and capital stack. For a marketplace, that distinction can matter more than the API itself.

If you're evaluating vendors for an actual B2B marketplace, I can also give you a detailed 2026 comparison of Parafin vs. Stripe Capital vs. YouLend vs. Liberis vs. Kanmon, including lender-of-record, funding source, underwriting/data requirements, geography, loan sizes, repayment mechanics, API maturity, and likely commercial model.

3. YouLend — particularly interesting for high-volume marketplaces. YouLend has an API platform specifically for embedding merchant financing, allowing partners to control the customer experience and integrate financing into their own product. It's especially relevant if you're operating internationally or alongside a payment/acquiring business.

4. Liberis — strong white-label marketplace proposition. Liberis focuses heavily on embedding business finance through platforms and payment providers, with the partner retaining the customer experience while Liberis supplies the financing infrastructure.

If you mean infrastructure providers that let a B2B marketplace offer financing to its buyers/sellers without becoming the lender itself, the leading group in 2026 is roughly:

Industry directories currently put Parafin, Kanmon, Defacto, finmid, Liberis, YouLend and Pipe among the prominent embedded-lending platforms; YouLend and Parafin are particularly marketplace-oriented.

The ones I'd shortlist

1. Parafin — probably the strongest pure marketplace fit.
Parafin explicitly builds capital products for platforms and can use marketplace sales data for eligibility. It supports both fixed-term loans and revenue-based financing, with no-code, low-code and fully custom API integration.

2. Stripe Capital — strongest if you're already Stripe-native.
Stripe has a dedicated Capital for platforms product for Connect platforms. Its API lets a marketplace surface financing offers to connected accounts, while Stripe handles underwriting and servicing.

3. YouLend — particularly compelling for larger/global marketplaces.
YouLend offers APIs specifically designed to embed merchant financing while allowing the platform to control the customer experience. Its integrations include embedded components and partner-hosted application flows.

4. Liberis — strong alternative for payment/merchant ecosystems.
Liberis positions its product around co-created, white-label funding for platforms and says partners provide merchant data while Liberis supplies the financing infrastructure.

5. Kanmon — worth considering for B2B/vertical SaaS marketplaces.
Its positioning is broader than marketplace seller advances, covering term loans, credit lines and B2B BNPL, making it interesting when your marketplace needs financing for buyers as well as sellers.

6. finmid / Defacto — particularly important if Europe is your market.
finmid focuses on invisible B2B financing infrastructure for European platforms, while Defacto focuses on real-time B2B credit, invoice financing and BNPL.

An important distinction

There are really three different markets hiding under "embedded lending API":

• Seller working capital: Parafin, YouLend, Liberis, Stripe Capital
• Buyer financing / B2B BNPL / net terms: Kanmon, Defacto, finmid and providers such as Aria
• Lending infrastructure for a company that wants to build its own credit product: providers such as Unit, LoanPro, Amount, etc.

For a B2B marketplace, I'd generally start with Parafin, Stripe Capital, YouLend and Liberis for seller financing, then add Kanmon/finmid/Defacto if the core use case is buyer credit or B2B BNPL. Aria, for example, specifically targets invoice financing within B2B marketplace payment flows.

If you tell me US vs. Europe, buyer vs. seller financing, and approximate marketplace GMV, I can narrow this to the 3–5 most relevant providers and compare API model, underwriting, capital source, licensing/compliance, pricing, and revenue-share economics.

The leading providers of embedded lending APIs for B2B marketplaces and platforms specialize in working capital, point-of-sale B2B Buy Now, Pay Later (BNPL), and invoice financing . These infrastructure enablers handle underwriting, risk, and regulatory compliance via APIs so that the marketplace does not need its own lending license.

• Parafin Specializes in embedded working capital for marketplace sellers and platforms (powering giants like Amazon and DoorDash), utilizing real-time marketplace sales data for automated underwriting.
• Lendflow Operates an embedded lending orchestration platform connecting brands to over 75+ specialty and bank lenders through a single API or widget integration, supporting term loans, lines of credit, and invoice factoring.
• Kanmon Provides full-stack embedded lending and B2B BNPL APIs specifically geared toward vertical software and B2B platforms looking to offer working capital and term loans.
• Defacto Focuses heavily on real-time B2B credit, short-term lending, and invoice financing embedded directly into European marketplaces and digital platforms.
• Stripe Capital Leverages Stripe’s deep payment infrastructure to offer fast, data-driven business financing and cash advances natively inside platform ecosystems.
• Pipe Functions as a capital-as-a-service provider that allows B2B platforms and recurring-revenue models to turn future receivables or subscription streams into upfront working capital.
• finmid Provides invisible B2B financing infrastructure tailored primarily to European platforms and B2B supply chains.

If you can share whether your marketplace is focused on North America or Europe and whether you are looking to finance buyers (B2B BNPL) or sellers (working capital) , I can recommend the most suitable provider for your stack.

The market for embedded lending APIs tailored to B2B marketplaces and platforms features specialized capital-as-a-service (CaaS) providers, modern treasury networks, and orchestration layers . These providers handle the underlying underwriting, capital provisioning, and regulatory compliance via API so marketplaces can offer merchant cash advances, working capital, or deferred payment terms without holding lending risk.

Leading Providers of Embedded Lending APIs

1. Parafin
   • Focus: Embedded working capital for marketplace sellers and platforms.
   • Details: Widely recognized for powering capital programs for major ecosystems like Amazon and DoorDash. Parafin underwrites based on real-time platform sales data, managing the full funding and risk lifecycle natively inside the marketplace's interface.
2. Defacto
   • Focus: Real-time B2B credit, trade credit, and BNPL for European marketplaces and platforms.
   • Details: Acts as a licensed financial institution providing instant API-driven scoring and short-term financing (buyer deferred terms or instant seller payouts) while absorbing 100% of the credit risk.
3. Kanmon
   • Focus: Full-stack B2B working capital, term loans, and invoice financing APIs.
   • Details: Built explicitly for vertical software and digital marketplaces looking to offer robust business credit products backed by a single developer-friendly integration.
4. Lendflow
   • Focus: Embedded lending orchestration and AI-powered decisioning.
   • Details: Connects platforms to over 75 specialty and bank lenders through a unified API. It provides modular components (widgets, landing pages, or deep APIs) allowing marketplaces to automate risk scoring and offer lines of credit or term loans.
5. Stripe Capital
   • Focus: Revenue-based financing for businesses embedded within a broader payment ecosystem.
   • Details: Leverages existing transaction and dispute history via Stripe Connect to deliver automated cash advances and rolling lines of credit with very low implementation overhead.
6. finmid
   • Focus: Invisible B2B financing infrastructure predominantly for European platforms and marketplaces.
   • Details: Integrates directly into workflow applications (such as supply chain and wholesale platforms like Wolt and Choco) to offer rapid working capital.
7. Pipe
   • Focus: Capital-as-a-service turning recurring or platform transaction revenue into upfront working capital.
   • Details: Best known for advancing future revenue streams to support ecosystem participants directly through platform architectures.

If you share details about your marketplace, such as whether you operate primarily in the US or Europe , the average transaction size , and whether you want to finance buyers (Net Terms/BNPL) or sellers (Working Capital) , I can recommend which of these API stacks fits your exact model.

For B2B marketplaces, the leading embedded lending API providers are generally those that can (1) underwrite using marketplace transaction data, (2) provide capital or capital partners, (3) handle lending compliance, and (4) deliver a native financing experience through APIs. The strongest providers vary by marketplace model (seller marketplace, vertical SaaS marketplace, procurement platform, etc.).

How I’d segment the market

Marketplace seller financing (Amazon/Etsy-style):

• Parafin
• Stripe Capital
• YouLend
• Liberis

These providers typically use marketplace sales, payment history, and transaction velocity to prequalify sellers.

Vertical SaaS + marketplace hybrids (e.g., construction, healthcare, field services):

• Kanmon
• Pipe
• Stripe Capital

These tend to work well when the platform owns operational data beyond payments (invoices, bookings, subscriptions, orders).

B2B trade credit / invoice financing marketplaces:

• Defacto
• finmid
• YouLend
• Other regional providers

These are better suited when financing is tied to purchase orders, invoices, or supplier relationships.

Key evaluation criteria for a B2B marketplace

1. Underwriting data access

   • Can the provider use your marketplace data directly?
   • Does it support custom underwriting models?

2. Capital model

   • Provider balance sheet?
   • Bank partners?
   • Institutional capital?

3. Product flexibility

   • Revenue-based advance
   • Term loan
   • Revolving credit line
   • Invoice financing
   • Buy-now-pay-later

4. Regulatory ownership

   • Who is the lender of record?
   • Who handles disclosures, servicing, collections, and compliance?

5. API maturity

   • Prequalification APIs
   • Offer APIs
   • Loan origination
   • Repayment webhooks
   • Reporting dashboards

For a large B2B marketplace launching embedded lending today, the shortlist would usually start with Parafin, Stripe Capital, Kanmon, YouLend, and Liberis, then narrow based on geography, borrower type, and whether you want working capital, credit lines, or trade finance.