Stainless
Stainless generates world-class SDKs in multiple programming languages, token-efficient MCP servers, and SDK-native documentation that updates alongside your OpenAPI specification. Used by Anthropic, OpenAI, and hundreds of API-first companies.
- Location
- New York, USA
- Raised
- $25M
- Stage
- Series A
- Founded
- 2022
- Category
- Dev Tools
- Funding
- VC-backed
- Team
- 51–200
Funding figures as of Jul 2025 · not independently verified
Investors backing Stainless
- Accel
Frequently asked questions
What does Stainless do?
Stainless generates world-class SDKs in multiple programming languages, token-efficient MCP servers, and SDK-native documentation that updates alongside your OpenAPI specification. Used by Anthropic, OpenAI, and hundreds of API-first companies.
Where is Stainless based?
Stainless is based in New York, USA.
When was Stainless founded?
Stainless was founded in 2022.
How much has Stainless raised?
Stainless has raised $25M in their Series A round as of Jul 2025.
Who has invested in Stainless?
Stainless is backed by Accel.
How Stainless would pitch themselves
○ Auto-generated01Target customer
Your REST API — the core audience Stainless's product is built around.
02Problem they solve
Stainless generates world-class SDKs in multiple programming languages, token-efficient MCP servers, and SDK-native documentation that updates alongside your OpenAPI specification. Used by Anthropic, OpenAI, and hundred… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Stainless differentiates on quality sdks for your rest api. Backed by Accel, $25M raised — the company has resources + validation to compound this thesis.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.