# Stainless

**Canonical:** https://apis.io/providers/stainless/  
**Website:** https://www.stainless.com/  
**APIs profiled:** 10

Stainless is an API developer experience platform that generates best-in-class SDKs, interactive documentation, production-ready CLI tools, MCP servers, and Terraform providers directly from an OpenAPI specification. Trusted by Anthropic, Cloudflare, Google, and OpenAI, Stainless automates the boilerplate of client library development including HTTP requests, retries with exponential backoff, streaming, and pagination. The platform supports TypeScript, Python, Go, Java, Kotlin, Ruby, C#, PHP, and Terraform, with Rust and Swift in development.

## Kin Score — 31.2 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: falling (-9.0 from 40.2).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 17.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 33.3 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 19.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (10)

- **Stainless SDK Generator** — Generate production-ready SDKs in TypeScript, Python, Go, Java, Kotlin, Ruby, C#, PHP, and Terraform from an OpenAPI specification. Stainless handles HTTP requests, retries with...
- **Stainless Docs Platform** — The Stainless Docs Platform combines your API reference, usage examples, and narrative guides into a single, cohesive experience that evolves with your API. Go from an OpenAPI s...
- **Stainless MCP Servers** — Stainless generates production-ready MCP (Model Context Protocol) servers optimized for agentic coding and context limits directly from an OpenAPI spec. Production-grade capabil...
- **Stainless CLI** — The Stainless CLI generates production-ready command-line interfaces from an OpenAPI specification. Generated CLIs provide a consistent, typed interface for interacting with any...
- **Stainless Terraform Providers** — Stainless generates production-ready Terraform providers from an OpenAPI specification, enabling infrastructure-as-code access to any REST API without manual Terraform provider ...
- **Stainless Build Target Outputs API** — The Build Target Outputs API from Stainless — 1 operation(s) for build target outputs.
- **Stainless Builds API** — The Builds API from Stainless — 4 operation(s) for builds.
- **Stainless Orgs API** — The Orgs API from Stainless — 2 operation(s) for orgs.
- **Stainless Projects API** — The Projects API from Stainless — 9 operation(s) for projects.
- **Stainless User API** — The User API from Stainless — 1 operation(s) for user.

## Agentic access (1)

- **Stainless Agentic Access** — 22 operations · 10 acting · 1 human-in-the-loop

## Security (3)

- **Stainless Authentication** — http · 1 scheme
- **Stainless Domain Security** — TLSv1.3 · DMARC
- **Stainless Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Stainless Plans Pricing**

## Tags

Code Generation, Documentation, Developer Experience, MCP, Platform, SDK, Terraform

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/stainless/). Scores are computed from the provider's own public artifacts under a published rubric.