Stainless: MCP vendor profile
Stainless generates an MCP server from an OpenAPI spec as a subpackage of a generated TypeScript SDK, exposing a code execution tool and a docs search tool instead of one tool per endpoint, as documented by the vendor. Stainless pricing counts a "generator" as any single SDK, docs site or MCP server (www.stainless.com).
At a glance
What it does for this layer
Stainless-hosted code execution (stainless-sandbox mode) is deprecated, and the tool may return 410 Gone, in which case the docs say to run with --code-execution-mode=local (www.stainless.com). Stainless runs an MCP Portal page with guides and a customer story about Scorecard's remote MCP server, built with Stainless and Clerk (www.stainless.com). Stainless generates MCP servers from an OpenAPI specification; the docs say "MCP server generation is experimental" (www.stainless.com).
A Stainless MCP server is generated as a subpackage of the TypeScript SDK at packages/mcp-server, enabled by adding mcp_server options to the typescript target (www.stainless.com). The Stainless code execution tool accepts TypeScript that runs against the generated SDK, and --code-execution-mode=local runs it in a Deno subprocess (www.stainless.com).
Products and plans
Stainless: products read on 5 November 2026, with the price where the page gave one| Product | What it does | Price |
|---|
| MCP server generator | Generates an MCP server package from an OpenAPI spec. | per generator; from 0 USD; Free plan available; paid tiers by SDKs and endpoints (source, as of 5 November 2026) |
Standards
Stainless: what the vendor's pages state about the standards, by the part of each standard| Standard | Part of it | Status | What the page says | Source |
|---|
| OpenAPI | OpenAPI as source | Supports | Generates the MCP server from an OpenAPI specification. | www.stainless.com |
Checks on its own domain
Stainless: the checks run on stainless.com| Check | Domain | Result | Scanned | Method |
|---|
| Ora cached score | stainless.com | 58 of 100, grade C | 10 September 2026 | how it was taken |
| Cloudflare agent-readiness scan | stainless.com | 20 of 100, L1 Basic Web Presence; 3 of 15 counted checks passed | 5 November 2026 | how it was taken |
What it does not do
- Stainless does not generate one MCP tool per endpoint by default (www.stainless.com).