oRPC - Typesafe APIs Made Simple 🪄

Documentation

You can read the documentation here.

Packages

Core

• @orpc/contract: Define API contract as the single source of truth.
• @orpc/server: Build APIs or implement contracts.
• @orpc/client: Consume APIs with end-to-end type safety.
• @orpc/openapi: Add OpenAPI compatibility to APIs.

Schema validation

• @orpc/zod: Integrate with Zod.
• @orpc/valibot: Integrate with Valibot.
• @orpc/arktype: Integrate with ArkType.

Built-in features

• @orpc/publisher: Pub/Sub with memory, Redis, and Upstash adapters.
• @orpc/ratelimit: Rate limiting with memory, Redis, and Upstash adapters.
• @orpc/json-schema: Smart coercion for OpenAPI requests.

Framework & ecosystem integrations

• @orpc/next: Integrate with Next.js Server Functions.
• @orpc/tanstack-query: Integrate with TanStack Query.
• @orpc/experimental-effect: Integrate with Effect.
• @orpc/nest: Implement your contract with NestJS.
• @orpc/bun: Adapters for Bun's Redis.
• @orpc/cloudflare: Adapters for Cloudflare's RateLimit and Durable Objects.

Observability

• @orpc/opentelemetry: Integrate with OpenTelemetry for distributed tracing.
• @orpc/pino: Integrate with Pino for logging.
• @orpc/evlog: Integrate with Evlog for logging.

Sponsors

Like what we build over at middleapi? You can help keep it going here: GitHub Sponsors. Every bit helps! 🚀

🏆 Platinum Sponsor

ScreenshotOne.com

🥈 Silver Sponsor

村上さん

Generous Sponsors

LN Markets

Sponsors

Reece McDonald	nk	supastarter	Dexter Miguel	herrfugbaum	Ryota Murakami
David Cramer	Valerii Petryniak	Valerii Strilets	Kyle Mistele	Andrew Peters	Ryan Vogel
christ12938	Ryan Soderberg	shota

Backers

David Walsh	Nicholas	Robbe Vaes	Aidan Sunbury	soonoo	Kevin Porten	Denis
Christopher Kapic	Tom Ballinger	Sam	Titoine	Igor Makowski	hanayashiki	Lev Dubinets
Kelly Peilin Chan	Alex	Andrey Gubanov

Past Sponsors

References

oRPC is inspired by existing solutions that prioritize type safety and developer experience. Special acknowledgments to:

• tRPC: For pioneering the concept of end-to-end type-safe RPC and influencing the development of type-safe APIs.
• ts-rest: 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 for more information.