# Microsoft Entity Framework

**Canonical:** https://apis.io/providers/microsoft-entity-framework/  
**Website:** https://learn.microsoft.com/en-us/ef/  
**APIs profiled:** 2

Microsoft Entity Framework is an object-relational mapping (ORM) framework for .NET developers enabling database access using .NET objects. EF Core is the modern, cross-platform version supporting SQL Server, PostgreSQL, MySQL, SQLite, and Cosmos DB with LINQ queries, change tracking, migrations, and code-first modeling.

## Kin Score — 25.0 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 25.0).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 0.0 |
| Governance | 30.3 |
| Contract Governance | 30.3 |
| Operational Transparency | 36.8 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 36.8 |
| Access Clarity | 36.8 |

## Agent readiness — 3.0 (human-only)

| 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 | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **Entity Framework Core** — A lightweight, extensible, open source and cross-platform ORM for .NET. Supports SQL Server, PostgreSQL, MySQL, SQLite, Cosmos DB, and in-memory databases.
- **Entity Framework 6** — The mature and stable ORM for .NET Framework with Code First, Database First, and Model First workflows.

## Security (2)

- **Microsoft Entity Framework Domain Security** — TLSv1.3 · HSTS · DMARC
- **Microsoft Entity Framework Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Microsoft Entity Framework Plans Pricing**

## Use cases (6)

- **Web Application Data Access** — Data access layer for ASP.NET Core web applications and APIs.
- **Microservices Data Layer** — Database access for .NET microservices with per-service databases.
- **Database Migration Management** — Version-controlled schema evolution with automatic migration generation.
- **Multi-Database Applications** — Applications connecting to multiple database providers simultaneously.
- **Domain-Driven Design** — Implement DDD patterns with aggregate roots, value objects, and repositories.
- **Legacy Database Integration** — Map existing database schemas to modern .NET classes with Database First.

## Tags

.NET, Data Access, Database, Entity Framework, ORM

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