# graphql-rust/juniper

GraphQL server library for Rust

Repository: https://github.com/graphql-rust/juniper
Canonical: https://ross.abutalabs.com/products/juniper
Language: Rust
License: NOASSERTION
License Family: other
Topics: graphql, rust, rust-library, cargo, web
Last push: 2026-07-27T14:25:18+00:00

## Health v2 (maintenance only)
Score: 86/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 94, release rhythm 68, longevity 100
- inputs: {"age_days": 3643, "days_push": 37, "days_rel": 219, "gap_med": 0.0, "n_releases_24m": 13}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5971, forks 442 (observed 2026-08-28T04:09:33.884055+00:00)

## What it is
Juniper is a GraphQL server library for Rust that enables building type-safe, fast GraphQL servers. It provides schema declaration and resolution building blocks with optional integrations for Actix, Hyper, Rocket, Warp, and Axum web frameworks.

## Use cases
- build a graphql server in rust
- serve a graphql api from actix-web
- define graphql schemas with rust types
- add graphql endpoint to an existing rust web service
- expose schema introspection and graphiql playground
- generate graphql schema definition language output

## When to choose
- you want a type-safe, spec-compliant GraphQL implementation in Rust
- you need integration with popular Rust web frameworks like Actix, Hyper, Rocket, Warp, or Axum
- you want full GraphQL spec support including interfaces, unions, and introspection

## When to avoid
- you need a batteries-included web server - Juniper only provides building blocks
- you are not using Rust for your backend
- you need a GraphQL client library rather than a server library

## Facets
- artifact type: library
- maturity: active
- function: graphql, api-framework, serialization, http-server
- domain: web-development, backend, apis
- platform: rust, cross-platform
- tags: graphql-server, type-safe, actix, hyper, rocket, warp, axum, schema-introspection, graphiql, web-server

## Member repositories
- graphql-rust/juniper (main) score 86

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:33.884055+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:50:08.731938+00:00, confidence not recorded.
  - readme: https://github.com/graphql-rust/juniper (fetched 2026-08-28T04:09:33.884055+00:00, sha 7e08352db23e)
  - registry_crates: https://crates.io/api/v1/crates/juniper (fetched 2026-08-29T08:46:00.066634+00:00, sha e6c1d32c178b)
- Data as of 2026-08-30T08:39:29.467469+00:00.