APIs · head to head
Prisma vs Stainless
Stainless
APIs
Generates client SDKs, API docs, and MCP servers from an OpenAPI spec
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Prisma prisma Postgres is billed per operation, with the free tier at 100,000 operations and 500 MB of storage; Stainless starter and Pro plan prices are not published and require contacting the company.
- They diverge on capability: Prisma covers ORM, Stainless covers SDK generation.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Prisma and Stainless actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (APIs).
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 Prisma
- ORM
- Query builder
- Auto-migrations
- Node.js
- TypeScript
- GraphQL
- REST APIs
- Node.js support
Only in Stainless
- SDK generation
- MCP server generation
- Docs site generation
- Webhooks and streaming support
- Automated unit tests
- Git integration
What people use each for
The jobs each tool is most often brought in to do.
Prisma
- Using a type safe ORM and query layer against a Postgres databasenot Stainless
- Adding a managed connection pool and edge cache in front of an existing databasenot Stainless
Stainless
- Generating typed SDKs for a public APInot Prisma
- Producing an MCP server from an existing OpenAPI specnot Prisma
- Building an API documentation site alongside client librariesnot Prisma
- Giving open-source APIs a free SDK generation pathnot Prisma
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Prisma
- Prisma Postgres is billed per operation, with the free tier at 100,000 operations and 500 MB of storage
- Starter at $10 a month includes 1M operations then charges $0.0080 per 1,000
- Storage overage runs from $2.00 per GB on Starter down to $1.00 per GB on Business, so the unit cost depends on the plan
- Accelerate charges separately per operation and per GiB of query egress beyond the first 1 KiB
- Cache tag invalidations are not included below the Pro plan and are billed per thousand above it
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.
Pricing, plan by plan
Prisma
Free- FreeFree
- 1M requests/month
- 360 GB-hours memory
- 4 vCPU-hours
- Starter$10/month
- 5M requests/month
- 1M database operations ($8 per million overage)
- 10 GB storage ($2/GB overage)
- Pro$49/month
- 20M requests/month
- 10M operations ($2 per million overage)
- 50 GB storage ($1.50/GB overage)
- Business$129/month
- 100M requests/month
- 50M operations ($1 per million overage)
- 100 GB storage
Stainless
Free- FreeFree
- Up to 5 generators (SDKs, docs, or MCP servers)
- 5 seats
- APIs with 25 or fewer endpoints
- Starter$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
Which should you pick?
Choose Prisma if
- You need orm.
- You want to start without paying.
- You work on Node.js, TypeScript.
- You also want query builder.
Choose Stainless if
- You need sdk generation.
- You want to start without paying.
- You work on web, api.
- You also want mcp server generation.
Questions people ask
- Is Prisma or Stainless better?
- Neither clearly leads. Prisma starts at Free and Stainless at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Prisma or Stainless?
- Prisma starts at Free and Stainless at Free.
- Does Prisma or Stainless run on more platforms?
- Prisma runs on Node.js, TypeScript. Stainless runs on web, api.
- Can I use Prisma for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Prisma best used for?
- Prisma is most often used for using a type safe orm and query layer against a postgres database, adding a managed connection pool and edge cache in front of an existing database. Of those, using a type safe orm and query layer against a postgres database and adding a managed connection pool and edge cache in front of an existing database are not what Stainless is typically brought in for.
- What can Prisma do that Stainless cannot?
- Prisma covers ORM, Query builder, Auto-migrations, Node.js. Stainless covers SDK generation, MCP server generation, Docs site generation, Webhooks and streaming support.
Answered from the vendors’ own pages
Prisma: How much does Prisma cost?
Prisma is free to start with 1M requests/month. The Starter plan costs $10/month with 5M requests, the Pro plan $49/month with 20M requests, and the Business plan $129/month with 100M requests. All plans have usage-based overages.
SourceStainless: 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.
SourcePrisma: What is Prisma's overage pricing?
Prisma charges $1 per million requests over the included amount (Starter), $2 per million database operations overage (Pro and Starter), and $1.50-$2 per GB for storage overages depending on the plan. All plans include a hard spend limit on by default.
SourceStainless: 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.
SourcePrisma: Does Prisma include data transfer costs?
No, Prisma includes unlimited data transfer with no egress fees on all plans. Prisma ORM remains free across all tiers.
SourceStainless: 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.
SourceRelated pages
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