# Amazon AppSync

**Canonical:** https://apis.io/providers/amazon-appsync/  
**APIs profiled:** 9

Amazon AppSync creates serverless GraphQL and Pub/Sub APIs that simplify application development through a single endpoint to securely query, update, or publish data.

## Kin Score — 32.1 / 100 (thin)

Scored 2026-08-24 under rubric 0.13.0. Trend: flat (-0.5 from 32.6).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 74.6 |
| Governance | 30.3 |
| Contract Governance | 30.3 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 33.7 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (9)

- **Amazon AppSync Api Keys API** — Manage API keys for authentication
- **Amazon AppSync Data Sources API** — Manage data sources connected to GraphQL APIs
- **Amazon AppSync Domain Names API** — Manage custom domain names for AppSync APIs
- **Amazon AppSync Functions API** — Manage reusable pipeline resolver functions
- **Amazon AppSync GraphQL APIs API** — Manage GraphQL API configurations
- **Amazon AppSync Resolvers API** — Manage field resolvers for GraphQL types
- **Amazon AppSync Schema API** — Manage GraphQL schema documents
- **Amazon AppSync Tags API** — Resource tagging operations
- **Amazon AppSync Types API** — Manage GraphQL type definitions

## MCP servers (1)

- **Amazon AppSync MCP Server**

## Agentic access (1)

- **Amazon Appsync Agentic Access** — 44 operations · 27 acting

## Security (3)

- **Amazon Appsync Authentication** — apiKey · 1 scheme
- **Amazon Appsync Domain Security** — TLSv1.3 · HSTS · DMARC
- **Amazon Appsync Vulnerability Disclosure** — security.txt · contact published

## Use cases (6)

- **Build mobile and web applications with a unified GraphQL data layer**
- **Implement real-time features like live notifications and chat with subscriptions**
- **Create a unified data access layer across multiple microservices**
- **Build offline-capable mobile apps with automatic conflict resolution**
- **Expose DynamoDB tables, Lambda functions, and OpenSearch as GraphQL APIs**
- **Implement federated GraphQL across multiple teams with Merged APIs**

## Tags

Amazon AppSync, GraphQL, API Management, Serverless

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