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Stainless vs Backendless

Stainless logo

Stainless

Software

Generates client SDKs, API docs, and MCP servers from an OpenAPI spec

From
Free
Rated
-
Full reviewWebsite
Backendless logo

Backendless

Software

Visual app development platform with REST APIs and cloud backend

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Stainless starter and Pro plan prices are not published and require contacting the company.; Backendless free tier limited to 50 API requests per minute and 20 database tables
  • They diverge on capability: Stainless covers SDK generation, Backendless covers REST API.

Where they differ

Only the attributes on which Stainless and Backendless actually diverge.

Attributes where Stainless and Backendless differ
AttributeStainlessBackendless
Pricing modelfreemiumUnknown
Platformsweb, apiCloud, Visual builder
FoundedUnknown2012

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Stainless

  • SDK generation
  • MCP server generation
  • Docs site generation
  • Webhooks and streaming support
  • Automated unit tests
  • Git integration

Only in Backendless

  • REST API
  • Real-time database
  • Cloud code
  • Custom integrations
  • Webhooks
  • Cloud functions
  • Cloud support
  • Visual builder support

What people use each for

The jobs each tool is most often brought in to do.

Stainless

  • Generating typed SDKs for a public APInot Backendless
  • Producing an MCP server from an existing OpenAPI specnot Backendless
  • Building an API documentation site alongside client librariesnot Backendless
  • Giving open-source APIs a free SDK generation pathnot Backendless

Backendless

  • API Developmentnot Stainless
  • API Gatewaynot Stainless
  • API Testingnot Stainless
  • API Documentationnot Stainless
  • Microservicesnot Stainless

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Stainless

  • Starter and Pro plan prices are not published and require contacting the company.
  • The free plan caps APIs at 25 endpoints, which excludes larger production APIs.
  • Overage charges apply per SDK/endpoint/month once limits are exceeded, which can make costs unpredictable at scale.

Backendless

  • Free tier limited to 50 API requests per minute and 20 database tables
  • Smaller community and integration ecosystem compared to Firebase or AWS
  • Customization beyond codeless tools requires developer expertise
  • Limited documentation for advanced use cases and edge cases

Pricing, plan by plan

Stainless

Free
  • FreeFree
    • Up to 5 generators (SDKs, docs, or MCP servers)
    • 5 seats
    • APIs with 25 or fewer endpoints
  • Starter$undefined/mo
    • Unlimited generators
    • Expanded seats
    • Private SDKs of any size
  • Pro$undefined/mo
    • Custom enterprise features and pricing
  • Enterprise$undefined/mo
    • Dedicated support
    • SOC 2 compliance reports
    • Purchase order/invoicing with negotiable terms

Backendless

Free
  • FreeFree
    • 50 API requests/minute
    • 20 database tables
    • 1 GB file storage
  • Scale Variable$15/month
    • Unlimited API requests/month
    • 100 database tables
    • 10 GB file storage
  • Scale Fixed$15/month
    • Same as Scale Variable
    • Fixed monthly pricing

Which should you pick?

Choose Stainless if

  • You need sdk generation.
  • You want to start without paying.
  • You work on web, api.
  • You also want mcp server generation.
Stainless review

Choose Backendless if

  • You need rest api.
  • You want to start without paying.
  • You work on Cloud, Visual builder.
  • You also want real-time database.
Backendless review

Questions people ask

Is Stainless or Backendless better?
Neither clearly leads. Stainless starts at Free and Backendless at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stainless or Backendless?
Stainless starts at Free and Backendless at Free.
Does Stainless or Backendless run on more platforms?
Stainless runs on web, api. Backendless runs on Cloud, Visual builder.
Can I use Stainless for free?
Both have a free tier, so you can try either at no cost before committing.
What is Stainless best used for?
Stainless is most often used for generating typed sdks for a public api, producing an mcp server from an existing openapi spec, building an api documentation site alongside client libraries, giving open-source apis a free sdk generation path. Of those, generating typed sdks for a public api and producing an mcp server from an existing openapi spec are not what Backendless is typically brought in for.
What can Stainless do that Backendless cannot?
Stainless covers SDK generation, MCP server generation, Docs site generation, Webhooks and streaming support. Backendless covers REST API, Real-time database, Cloud code, Custom integrations.

Answered from the vendors’ own pages

Stainless: Is there a free plan, and what are its limits?

Yes. The Free plan supports up to 5 generators, 5 seats, APIs with 25 or fewer endpoints, and 100 preview builds per month, with email support.

Source
Backendless: Does Backendless have a free tier?

Backendless Free plan ($0/month) includes 50 API requests per minute, 20 database tables, 1 GB file storage, 1 visualization, 2 security roles, and basic cloud code capabilities.

Source
Stainless: Who owns the generated SDK code?

The generated SDK code is owned by the customer and published by Stainless under the Apache 2.0 license.

Source
Backendless: What features does the Scale plan include?

Scale plan ($15+/month) provides unlimited API requests per month, 100 database tables, 10 GB file storage, 5 visualizations, 10 custom API keys, daily backups, free SSL certificates, and 1,000 real-time connections.

Source
Stainless: What happens if I exceed my plan's endpoint limit?

Customers exceeding their endpoint limits are billed per SDK, per endpoint, per month for the overage.

Source
Backendless: Can I add more storage or increase API limits?

Yes, Backendless offers Function Packs ranging from $5-$399/month to increase specific limits such as storage, API requests, or security features.

Source
Backendless: Does Backendless support offline functionality?

Backendless supports real-time sync and offline capabilities for mobile apps, allowing data to sync when connectivity is restored.

Source
Backendless: Is Backendless Pro available for self-hosting?

Yes, Backendless Pro Community Edition is available under free licensing for core functionality. Managed Backendless is a paid option for self-hosted deployments with request-based pricing.

Source
Backendless: What are Backendless's integration limitations?

While Backendless supports many integrations, it has a smaller integration library compared to competitors. Finding solutions to edge cases or complex setups may require more development effort.

Source
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