Software · pricing
Stainless pricing
Stainless publishes 4 tiers. Below is each one, what it adds over the tier beneath it, and where the ladder stops being worth climbing for most people.
- Entry price
- Free
- Model
- Freemium
- Tiers
- 4
- Free tier
- Yes
Stainless plans, side by side
Every published tier in ascending order of price, with the number of features each one lists. An absence here means the record does not itemise it, not that the tier lacks it.
| Plan | Price | Features listed | Step up from the tier below |
|---|---|---|---|
| Free | Free | 6 | Entry tier |
| Starter | On request | 6 | Priced on request |
| Pro | On request | 1 | Priced on request |
| Enterprise | On request | 3 | Priced on request |
What each tier adds
The set difference between each tier's feature list and the one beneath it. Where a tier lists nothing new, the vendor has either stopped repeating the inherited list or the tier raises limits rather than adding capability, the record does not distinguish the two, so this page does not either.
Free
FreeThe entry tier. It covers up to 5 generators (sdks, docs, or mcp servers), 5 seats, apis with 25 or fewer endpoints, webhooks, streaming, and auth support, 100 preview builds per month, email support.
Starter
On requestOver Free, this tier adds:
- Unlimited generators
- Expanded seats
- Private SDKs of any size
- Custom domains, custom JS/CSS
- Git integration
- AI chat
Pro
On requestOver Starter, this tier adds:
- Custom enterprise features and pricing
Enterprise
On requestOver Pro, this tier adds:
- Dedicated support
- SOC 2 compliance reports
- Purchase order/invoicing with negotiable terms
Where Stainless stops being free
Free, Free
- Up to 5 generators (SDKs, docs, or MCP servers)
- 5 seats
- APIs with 25 or fewer endpoints
- Webhooks, streaming, and auth support
- 100 preview builds per month
- Email support
No paid tier on record
Stainless lists a free tier and no priced tier above it in the record we hold.
What the product covers
The full Stainless feature record, grouped as the catalogue groups it. This is the product as a whole; the record does not map every feature onto a specific tier.
core
- SDK generation
- MCP server generation
- Docs site generation
- Webhooks and streaming support
- Automated unit tests
integration
- Git integration
People bring Stainless in 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. If that is not the job you are buying for, the alternatives to Stainless are worth a look before you commit to a tier.
Before you pay for Stainless
Three things this page cannot tell you, and all three change the bill. The record carries a price and a billing period but not the unit - per-seat and flat-rate pricing are indistinguishable in this data, so a five-person team may be looking at five times the figure above. It carries no annual rate, so any discount for paying yearly is not something this page can quote. And it carries no trial length.
What it can tell you is the shape of the ladder: 4 tiers between Free and On request, with the jump itemised above. Because there is a free tier, the cheapest way to answer the rest is to use it before paying anything.
Stainless runs on web, api, and is published by Stainless. The full record is on the Stainless review.
Stainless pricing questions
- How much does Stainless cost?
- Stainless publishes 4 tiers, from Free for Free up to On request for Enterprise. The entry tier costs nothing.
- Does Stainless have a free plan?
- Yes. The Free tier costs nothing and covers up to 5 generators (sdks, docs, or mcp servers), 5 seats, apis with 25 or fewer endpoints.
- What is the difference between Free and Starter on Stainless?
- Starter costs On request against Free, and adds unlimited generators, expanded seats, private sdks of any size, custom domains, custom js/css.
- What am I actually paying for with Stainless?
- The record lists 6 features across 2 areas: core, integration. In practice it is brought in 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.
- Does Stainless charge per user?
- The record carries a price and a billing period for each of its 4 tiers, but not the unit that price is charged in. Per-seat and flat-rate billing look identical in this data, so check the vendor's page before budgeting for a team.
- Are these Stainless prices current?
- They are what the catalogue entry holds, refreshed when the entry is. Vendors change pricing without notice and nobody at Softwr re-verifies each tier by hand, so treat this as a structured summary and the vendor's own pricing page as the authority.
- What should I compare Stainless against before paying?
- Nothing else in this directory is filed close enough to Stainless to make a useful price comparison.