oRPC - Typesafe APIs Made Simple 🪄

## Documentation You can read the documentation [here](https://orpc.dev). ## Packages **Core** | Package | Purpose | Docs | | -------------------------------------------------------------- | -------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [@orpc/contract](https://www.npmjs.com/package/@orpc/contract) | Define API contract as the single source of truth. | [Procedure Contract](https://orpc.dev/docs/contract/procedure), [Contract Router](https://orpc.dev/docs/contract/router), [Implementation](https://orpc.dev/docs/contract/implementation), [Generate from OpenAPI](https://orpc.dev/docs/contract/generate-from-openapi) | | [@orpc/server](https://www.npmjs.com/package/@orpc/server) | Build APIs or implement contracts. | [Procedure](https://orpc.dev/docs/procedure), [Router](https://orpc.dev/docs/router), [Middleware](https://orpc.dev/docs/middleware), [Context](https://orpc.dev/docs/context), [RPC Handler](https://orpc.dev/docs/rpc/handler) | | [@orpc/client](https://www.npmjs.com/package/@orpc/client) | Consume APIs with end-to-end type safety. | [Client-Side Clients](https://orpc.dev/docs/client/client-side), [Server-Side Clients](https://orpc.dev/docs/client/server-side), [RPC Link](https://orpc.dev/docs/rpc/link), [Error Handling](https://orpc.dev/docs/client/error-handling) | | [@orpc/openapi](https://www.npmjs.com/package/@orpc/openapi) | Add OpenAPI compatibility to APIs. | [OpenAPI Handler](https://orpc.dev/docs/openapi/handler), [OpenAPI Link](https://orpc.dev/docs/openapi/link), [Specification](https://orpc.dev/docs/openapi/specification), [Scalar](https://orpc.dev/docs/openapi/scalar) | **Schema validation** | Package | Purpose | Docs | | ------------------------------------------------------------ | ---------------------------------------------------------- | ----------------------------------------------------- | | [@orpc/zod](https://www.npmjs.com/package/@orpc/zod) | JSON Schema converter for [Zod](https://zod.dev/). | [Zod](https://orpc.dev/docs/integrations/zod) | | [@orpc/valibot](https://www.npmjs.com/package/@orpc/valibot) | JSON Schema converter for [Valibot](https://valibot.dev/). | [Valibot](https://orpc.dev/docs/integrations/valibot) | | [@orpc/arktype](https://www.npmjs.com/package/@orpc/arktype) | JSON Schema converter for [ArkType](https://arktype.io/). | [ArkType](https://orpc.dev/docs/integrations/arktype) | **Built-in features** | Package | Purpose | Docs | | -------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------- | | [@orpc/publisher](https://www.npmjs.com/package/@orpc/publisher) | Pub/Sub with memory, Redis, and Upstash adapters. | [Publisher](https://orpc.dev/docs/helpers/publisher) | | [@orpc/ratelimit](https://www.npmjs.com/package/@orpc/ratelimit) | Rate limiting with memory, Redis, and Upstash adapters. | [Rate Limit](https://orpc.dev/docs/helpers/ratelimit) | | [@orpc/experimental-lock](https://www.npmjs.com/package/@orpc/experimental-lock) | Locking with memory, Redis, and Upstash adapters. | [Lock](https://orpc.dev/docs/helpers/lock) | | [@orpc/hibernation](https://www.npmjs.com/package/@orpc/hibernation) | Leverage Hibernation APIs like [Cloudflare's Hibernation WebSocket](https://developers.cloudflare.com/durable-objects/best-practices/websockets/#durable-objects-hibernation-websocket-api). | [Hibernation](https://orpc.dev/docs/integrations/hibernation) | | [@orpc/json-schema](https://www.npmjs.com/package/@orpc/json-schema) | Smart coercion for OpenAPI requests. | [Smart Coercion](https://orpc.dev/docs/plugins/smart-coercion) | **Framework & ecosystem integrations** | Package | Purpose | Docs | | ------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [@orpc/next](https://www.npmjs.com/package/@orpc/next) | Integrate with [Next.js Server Functions](https://nextjs.org/docs/app/getting-started/mutating-data). | [Next.js](https://orpc.dev/docs/integrations/next) | | [@orpc/ai-sdk](https://www.npmjs.com/package/@orpc/ai-sdk) | Turn contracts and procedures into [AI SDK](https://ai-sdk.dev/) tools. | [AI SDK](https://orpc.dev/docs/integrations/ai-sdk) | | [@orpc/tanstack-query](https://www.npmjs.com/package/@orpc/tanstack-query) | Integrate with [TanStack Query](https://tanstack.com/query/latest). | [TanStack Query](https://orpc.dev/docs/integrations/tanstack-query) | | [@orpc/pinia-colada](https://www.npmjs.com/package/@orpc/pinia-colada) | Integrate with [Pinia Colada](https://pinia-colada.esm.dev/). | [Pinia Colada](https://orpc.dev/docs/integrations/pinia-colada) | | [@orpc/swr](https://www.npmjs.com/package/@orpc/swr) | Integrate with [SWR](https://swr.vercel.app/). | [SWR](https://orpc.dev/docs/integrations/swr) | | [@orpc/experimental-msw](https://www.npmjs.com/package/@orpc/experimental-msw) | Mock procedures with [Mock Service Worker](https://mswjs.io/). | [MSW](https://orpc.dev/docs/integrations/msw) | | [@orpc/experimental-effect](https://www.npmjs.com/package/@orpc/experimental-effect) | Integrate with [Effect](https://effect.website/). | [Effect](https://orpc.dev/docs/integrations/effect) | | [@orpc/nest](https://www.npmjs.com/package/@orpc/nest) | Implement your contract with [NestJS](https://nestjs.com/). | [NestJS](https://orpc.dev/docs/integrations/nest) | | [@orpc/node](https://www.npmjs.com/package/@orpc/node) | [Node.js](https://nodejs.org/) plugins for static file serving and large uploads. | [Static File](https://orpc.dev/docs/plugins/static-file), [Tmp File Upload](https://orpc.dev/docs/plugins/tmp-file-upload), [Batch Response Compression](https://orpc.dev/docs/plugins/batch-response-compression) | | [@orpc/bun](https://www.npmjs.com/package/@orpc/bun) | Adapters for [Bun's Redis](https://bun.sh/). | [Publisher](https://orpc.dev/docs/helpers/publisher), [Rate Limit](https://orpc.dev/docs/helpers/ratelimit), [Lock](https://orpc.dev/docs/helpers/lock) | | [@orpc/cloudflare](https://www.npmjs.com/package/@orpc/cloudflare) | Adapters for [Cloudflare Workers](https://developers.cloudflare.com/workers/). | [Publisher](https://orpc.dev/docs/helpers/publisher), [Rate Limit](https://orpc.dev/docs/helpers/ratelimit), [Lock](https://orpc.dev/docs/helpers/lock), [Traces](https://orpc.dev/docs/integrations/cloudflare-traces) | | [@orpc/trpc](https://www.npmjs.com/package/@orpc/trpc) | Reuse existing [tRPC](https://trpc.io/) routers within oRPC. | [tRPC](https://orpc.dev/docs/integrations/trpc) | **Observability** | Package | Purpose | Docs | | ------------------------------------------------------------------------ | ---------------------------------------------------------------------------------- | ----------------------------------------------------------------- | | [@orpc/opentelemetry](https://www.npmjs.com/package/@orpc/opentelemetry) | Integrate with [OpenTelemetry](https://opentelemetry.io/) for distributed tracing. | [OpenTelemetry](https://orpc.dev/docs/integrations/opentelemetry) | | [@orpc/pino](https://www.npmjs.com/package/@orpc/pino) | Integrate with [Pino](https://getpino.io/) for logging. | [Pino](https://orpc.dev/docs/integrations/pino) | | [@orpc/evlog](https://www.npmjs.com/package/@orpc/evlog) | Integrate with [Evlog](https://evlog.dev/) for logging. | [Evlog](https://orpc.dev/docs/integrations/evlog) | ## Sponsors Like what we build over at [middleapi](https://github.com/middleapi)? You can help keep it going through [GitHub Sponsors](https://github.com/sponsors/dinwwwh) or [Open Collective](https://opencollective.com/middleapi). Every bit helps! 🚀

ScreenshotOne.com
_{The screenshot API for developers}

Yuzu
_{We're hiring NYC based engineers}

MisskeyHQ
_{Decentralized microblogging SNS born on Earth}

### Special Sponsors

Guillermo Rauch

### Premium Sponsors

Nexa

### Organization Sponsors

LN Markets

### Sponsors

Reece McDonald	あわわわとーにゅ	nk	supastarter	herrfugbaum	Ryota Murakami
David Cramer	Valerii Petryniak	Valerii Strilets	Kyle Mistele	christ12938	Ryan Soderberg
shota	Ellis Driscoll	Hoang Nguyen	Orestis Ioannou	Stefan Smiljkovic

### Backers

David Walsh	IPv4Addr	Robbe Vaes	Aidan Sunbury	soonoo	Kevin Porten	Denis
Christopher Kapic	Tom Ballinger	Sam	Titoine	Igor Makowski	hanayashiki	Lev Dubinets
Kelly Peilin Chan	Guy Ariely	PaulSenon	Shotaro Nakamura	Alex	Andrey Gubanov

With thanks to [38 past sponsors](https://orpc.dev/sponsors#past-sponsors) who helped get oRPC here. ## References oRPC is inspired by existing solutions that prioritize type safety and developer experience. Special acknowledgments to: - [tRPC](https://trpc.io): For pioneering the concept of end-to-end type-safe RPC and influencing the development of type-safe APIs. - [ts-rest](https://ts-rest.com): For its emphasis on contract-first development and OpenAPI integration, which have greatly inspired oRPC's feature set. ## License Distributed under the MIT License. See [LICENSE](https://github.com/middleapi/orpc/blob/main/LICENSE) for more information.