# TypeScript

**Canonical:** https://apis.io/providers/typescript/  
**Website:** https://www.typescriptlang.org  
**APIs profiled:** 3

TypeScript is a strongly typed programming language that builds on JavaScript, adding optional static type checking and other features. Developed and maintained by Microsoft, TypeScript compiles to plain JavaScript and is widely used for large-scale web applications, Node.js services, and developer tooling. The TypeScript Compiler API and Language Service API enable programmatic compilation, type checking, code transformation, and IDE integrations.

## Kin Score — 25.7 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 25.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 14.7 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 25.0 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 6.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| 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 — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (3)

- **TypeScript Compiler API** — Programmatic access to the TypeScript compiler. The Compiler API allows developers to parse TypeScript files into ASTs, perform type checking, emit JavaScript, and transform cod...
- **TypeScript Language Service API** — API for editor integration and language tooling. The Language Service API provides completions, diagnostics, quick fixes, rename, go-to-definition, find references, and other ID...
- **TypeScript Transform API** — The TypeScript Transform API enables custom AST transformations during compilation. Transformers can modify, add, or remove nodes in the TypeScript AST before code emission.

## Security (1)

- **Typescript Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Typescript Plans Pricing**

## Tags

Compiler, JavaScript, Language Service, Programming Language, Static Typing, Web Development

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