- Before any demo, write these down
- Embedded workflows, unified APIs and auth layers
- Read the homepage you land on twice
- Nine integration platforms at a glance
- The nine, alphabetically
- Ship one customer connection through two platforms
- For a SaaS team with a backlog of integration requests
- Frequently asked questions
Embedded integration platforms let a SaaS product connect to its customers' CRM, accounting and work tools without your team building and maintaining every connector. They come in three kinds: embedded workflow platforms, unified APIs, and auth-plus-API infrastructure. Write down which apps your customers ask for and who'll configure each connection, then shortlist from the matching kind.
Most product teams assume a customer integration is a one-off build: write the connector, ship it, move on. Then the customer's CRM changes a field, a token expires at midnight, and a second customer wants the same connector with a different mapping. The work never ends, which is exactly why this category exists. Below are nine platforms, in no particular order, for SaaS product teams and technical founders who'd rather ship integrations than maintain them.
Before any demo, write these down
Ten minutes with this list will save you a week of demos. Every answer narrows the field. Every tool description in this list comes from the vendor's own site.
- The five apps your customers ask about most, by name, from sales calls and support tickets
- Which of those are CRMs, accounting systems, ERPs or everyday work tools, because some platforms go deep on one kind
- Whether data needs to flow one way or both ways, and how fresh it has to be
- Who sets up each connection: your engineers, your support team or the customer inside your product
- Whether customers will want to change the workflow themselves, or just switch it on
- How each connection will authenticate, and who handles expired or revoked access
- Whether AI agents in your product will need to call these apps too, or only your own code
- What you'll show a customer when a sync fails at three in the morning
If your list is mostly accounting systems, a unified API built around that category may cover it. If customers want to build their own workflows inside your product, you need an embedded workflow platform. If your engineers want control and just hate the auth plumbing, the infrastructure group is closer.
Embedded workflows, unified APIs and auth layers
Embedded workflow platforms
Prismatic is an embedded iPaaS where your team ships integrations in code and customers customise them with their own workflows, with headless configuration so the setup lives inside your product. Cyclr is also embedded iPaaS, aimed at B2B SaaS companies, and now adds MCP infrastructure alongside it.
Unified APIs
A unified API gives you one set of endpoints that reaches many apps in the same category. Apideck focuses on accounting, reading and writing bills, invoices and transactions across systems through the same endpoints. The trade is depth: a single shared model is quick to adopt, but check that the fields your customers rely on are in it.
Auth and API infrastructure
Nango offers managed auth and connects agents and products to a large catalogue of APIs. Pipedream Connect gives agents and apps managed auth and a tool library, reachable through an SDK or a remote MCP server. Ampersand is built for deep two-way integrations with systems of record such as Salesforce and NetSuite, so it suits products whose customers live in their CRM or ERP.
Read the homepage you land on twice
Almost every vendor here now sells itself first as infrastructure for AI agents. Merge's homepage calls it the universal context engine for AI, Paragon calls itself an integration platform for AI agents and products, and the integration.app address now serves a product titled Membrane rather than a plain embedded integration tool.
That's not a reason to rule anyone out. Agent features may be useful to you, and the customer-facing integration products still sit underneath. But it does mean the first page you see may not answer the question you came with. Click through to the page that describes customer-facing integrations inside your product, and check it still says what you need: connectors your customers use, setup your team or customers can run, and a way to see what failed.
Nine integration platforms at a glance
| Tool | Kind of tool | Who it suits |
|---|---|---|
| Ampersand | CRM and ERP integration infrastructure | Products syncing deeply with CRMs and ERPs |
| Apideck | Unified API | Products that need accounting integrations |
| Cyclr | Embedded iPaaS | B2B SaaS companies that want MCP too |
| Membrane (integration.app) | Integration infrastructure | Products wanting broad app coverage, including for agents |
| Merge | Unified API | Teams wanting many app categories behind one API |
| Nango | Auth and API infrastructure | Developers who want auth handled for them |
| Paragon | Embedded integration platform | Product teams handing off integration plumbing |
| Pipedream Connect | Managed auth and tools | Agent builders needing auth and ready-made tools |
| Prismatic | Embedded iPaaS | Code-first teams whose customers customise workflows |
The nine, alphabetically
Listed in no particular order beyond the alphabet; each line sticks to what the maker says.
Ampersand
Best for: Deep two-way integrations with systems of record such as Salesforce and NetSuite; the vendor says it's built for the CRMs and ERPs customers run on.
Apideck
Best for: Reading and writing bills, invoices and transactions across accounting and ERP systems through the same set of endpoints.
Cyclr
Best for: B2B SaaS companies wanting embedded iPaaS plus MCP infrastructure; the vendor pitches one platform for integration, AI interoperability and data governance.
Membrane (integration.app)
Best for: Letting a product connect to the apps its customers use while giving AI agents tools through one interface; vendor claim: integrations in minutes, not months.
Merge
Best for: Shipping customer-facing integrations across many apps through one unified API, with agent tools and an LLM gateway alongside.
Nango
Best for: Products and agents that need managed auth across a large catalogue of APIs; the vendor says every auth type is supported.
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Paragon
Best for: Product teams handing off sync, permission data, auth and provider changes so they keep the product logic and user experience.
Pipedream Connect
Best for: Giving agents and apps managed auth and a tool library over many APIs, through an SDK or a remote MCP server.
Prismatic
Best for: Engineering teams who build integrations in code but let customers shape them with their own workflows; vendor claim: headless setup inside your own product.
Ship one customer connection through two platforms
Take the single app your customers ask for most and give it one working day.
- Choose two platforms from the group that matched your written list.
- Connect a sandbox account of that app to each, using the same auth method a real customer would.
- Sync one real object both ways, such as a contact or an invoice, and change a field on the far side.
- Revoke the access halfway through and see what each platform tells you, and what it would tell your customer.
- Ask the engineer who did the work which one they'd want to maintain for the next two years.
For a SaaS team with a backlog of integration requests
Count the requests by app and by kind before you choose anything. If one category dominates, such as accounting or CRM, a platform that goes deep on that category will clear more of the backlog than a broad one. If requests are spread thin across dozens of work tools, breadth and managed auth matter more. If you're comparing this with general automation, my list of Zapier alternatives covers tools your own team uses internally, and these data integration tools move data between your own systems rather than your customers'.
Do you make embedded integration or unified API software? Tool makers can ask to be considered for a featured place on this list.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
What's the difference between embedded iPaaS and a unified API?
Embedded iPaaS gives you a workflow platform inside your product, often with customer-configurable steps. A unified API gives your developers one set of endpoints that reaches many apps in the same category.
Do my customers see the integration platform?
That depends on the platform and how you set it up. Several describe headless or embedded setup so the experience looks like part of your product.
Can I start with a unified API and switch later?
You can, but your code will be shaped around one data model, so moving means rework. Pick based on the apps your customers use today and the depth they need.
Who handles authentication with each customer's apps?
Several platforms here say they handle auth for you, so your team doesn't build the plumbing for storing and refreshing each customer's access. Check how each one handles revoked or expired access before you commit.
Do I need MCP or agent features?
Only if AI agents inside your product will call your customers' apps. Many vendors now lead with these features, but customer-facing integrations remain the core job for most SaaS teams.
How many integrations should we launch with?
Start with the few your customers ask for most often. Shipping three that work reliably beats listing thirty that break quietly.


