Third-party Middleware

Third-party middleware refers to middleware not bundled within the Hono package. Most of this middleware leverages external libraries.

Authentication

• Auth.js(Next Auth)
• Casbin
• Clerk Auth
• Cloudflare Access
• OAuth Providers
• OIDC Auth
• Firebase Auth
• Verify RSA JWT (JWKS)
• SSOJet Auth
• Stytch Auth
• Shopify Auth

Validators

• Ajv Validator
• ArkType Validator
• Class Validator
• Conform Validator
• Effect Schema Validator
• Standard Schema Validator
• TypeBox Validator
• Typia Validator
• unknownutil Validator
• Valibot Validator
• Zod Validator

OpenAPI

• Zod OpenAPI
• Scalar
• Swagger UI
• Swagger Editor
• Hono OpenAPI
• hono-zod-openapi

Development

• ESLint Config
• hono-testkit
• SSG Plugin Essential

Monitoring / Tracing

• Apitally (API monitoring & analytics)
• Highlight.io
• LogTape (Logging)
• OpenTelemetry
• Prometheus Metrics
• Sentry
• Pino logger

Server / Adapter

• GraphQL Server
• oRPC
• tRPC Server
• mcp-use (MCP Server)
• hono-mcp-bridge (Expose routes as MCP tools)

Transpiler

• Bun Transpiler
• esbuild Transpiler

UI / Renderer

• Qwik City
• React Compatibility
• React Renderer

Queue / Job Processing

• GlideMQ (Message Queue REST API + SSE)

Internationalization

• Intlayer i18n

Utilities

• Bun Compress
• Cap Checkpoint
• Event Emitter
• Geo
• Hono Rate Limiter
• Hono Problem Details (RFC 9457)
• Hono Simple DI
• InferDI
• Idempotency (Stripe-style idempotency keys)
• idempot-js - spec-compliant middleware, supporting multiple storage backends (redis, postgres, mysql, sqlite)
• jsonv-ts (Validator, OpenAPI, MCP)
• MCP
• RONIN (Database)
• Session
• StitchAPI (Typed, resilient API calls + SSE)
• tsyringe
• User Agent based Blocker