tRPC

tRPC is a TypeScript framework for building end-to-end typesafe APIs without code generation or schemas. It leverages TypeScript's type inference to provide full static typesafety and autocompletion between client and server, with zero runtime dependencies. tRPC v11 supports queries, mutations, and subscriptions via HTTP GET/POST and WebSocket adapters for Express, Fastify, Next.js, AWS Lambda, and edge runtimes.

tRPC publishes 1 API on the APIs.io network: Procedures API. Tagged areas include API Composition, API Framework, BFF, End-to-End Type Safety, and RPC.

The tRPC catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

tRPC’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

35.8/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

API Composition API FrameworkBFFEnd-to-End Type SafetyRPC TypeScript

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 35.8/100 · thin

Contract Quality 16.3 / 25

Developer Ergonomics 5.7 / 20

Access Clarity 3.2 / 20

Operational Transparency 1.4 / 13

Contract Governance 1.6 / 12

Discoverability 7.6 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/trpc: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Trpc Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Examples 2

Example request and response payloads for these APIs.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

NPM

NPM

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Discord

Discord

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 3

The organization behind the API

Website

Website

Twitter

Twitter

Blog

Blog

Source (apis.yml)

aid: trpc
name: tRPC
description: tRPC is a TypeScript framework for building end-to-end typesafe APIs without code generation or schemas. It leverages
  TypeScript's type inference to provide full static typesafety and autocompletion between client and server, with zero runtime
  dependencies. tRPC v11 supports queries, mutations, and subscriptions via HTTP GET/POST and WebSocket adapters for Express,
  Fastify, Next.js, AWS Lambda, and edge runtimes.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/trpc.png
tags:
- API Composition
- API Framework
- BFF
- End-to-End Type Safety
- RPC
- TypeScript
url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/apis.yml
created: '2026-03-27'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: trpc:trpc-procedures-api
  name: tRPC Procedures API
  description: tRPC procedures exposed as REST endpoints
  humanURL: https://trpc.io/docs/
  baseURL: https://your-server.example.com/api/trpc
  tags:
  - Procedures
  properties:
  - type: OpenAPI
    url: openapi/trpc-procedures-api-openapi.yml
  - type: Documentation
    url: https://trpc.io/docs
  - type: GettingStarted
    url: https://trpc.io/docs/quickstart
  - type: GitHubRepository
    url: https://github.com/trpc/trpc
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/rules/trpc-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/json-schema/trpc-procedure-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/json-schema/trpc-error-schema.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/json-ld/trpc-context.jsonld
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/trpc/refs/heads/main/vocabulary/trpc-vocabulary.yml
common:
- type: License
  name: MIT
  url: https://github.com/trpc/trpc/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/trpc-agentic-access.yml
- type: DomainSecurity
  url: security/trpc-domain-security.yml
- type: Authentication
  url: authentication/trpc-authentication.yml
- type: Website
  url: https://trpc.io/
- type: Documentation
  url: https://trpc.io/docs
- type: GitHubOrganization
  url: https://github.com/trpc
- type: GitHubRepository
  url: https://github.com/trpc/trpc
- type: NPM
  url: https://www.npmjs.com/package/@trpc/server
- type: Discord
  url: https://trpc.io/discord
- type: Twitter
  url: https://twitter.com/alexdotjs
- type: LlmsText
  url: https://trpc.io/llms.txt
- url: https://trpc.io/blog/rss.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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