Code Generation
Providers using this tag (65)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 2 Solid coverage with minor gaps
Developing 10 Usable, with meaningful gaps to close
Thin 22 Limited public surface area
Emerging 27 Early or largely undocumented
Minimal 4 Almost no public developer surface
APIs with this tag (59)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Strong 2 Solid coverage with minor gaps
Developing 6 Usable, with meaningful gaps to close
Speakeasy MCP Server GenerationGenerate production-ready MCP server code from OpenAPI specifications. Deploy on your own infrastructure, c...Speakeasy SDK GenerationGenerate idiomatic, type-safe SDKs in 7+ languages from OpenAPI specs. Supports TypeScript, Python, Go, Jav...Speakeasy Terraform GenerationTurn your OpenAPI spec into a production-ready Terraform provider without the manual work. Automatically ke...Hey API Openapi-Ts@hey-api/openapi-ts is an OpenAPI to TypeScript code generator that emits production-grade SDKs, types, val...Scalar SDKsScalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include T...Ambassador Blackbird API Development PlatformBlackbird is an API development platform that helps developers design, build, test, and manage APIs with AI...
Thin 24 Limited public surface area
KiotaKiota generates strongly-typed, lightweight API clients from OpenAPI descriptions in C#, Dart, Go, Java, PH...GraphQL Code GeneratorGraphQL Code Generator generates typed code from GraphQL schemas and operations, supporting TypeScript, Rea...FernFern transforms a single API source of truth (OpenAPI, AsyncAPI, Protobuf, OpenRPC, or the Fern Definition ...RefitterRefitter is a .NET source generator and CLI tool that produces Refit HTTP client interfaces from OpenAPI 2....Mistral AI FIM APIFill-in-the-Middle code completion API powered by Codestral for generating code between a prompt and suffix...OgenThe ogen code generator. Invoked as a build-time CLI against a local OpenAPI v3 document — `ogen [options] ...OrvalOrval generates TypeScript API clients, TanStack Query/SWR hooks, Angular services, SolidStart primitives, ...Stainless CLIThe Stainless CLI generates production-ready command-line interfaces from an OpenAPI specification. Generat...Stainless MCP ServersStainless generates production-ready MCP (Model Context Protocol) servers optimized for agentic coding and ...Stainless SDK GeneratorGenerate production-ready SDKs in TypeScript, Python, Go, Java, Kotlin, Ruby, C#, PHP, and Terraform from a...Stainless Terraform ProvidersStainless generates production-ready Terraform providers from an OpenAPI specification, enabling infrastruc...Apicurio CodegenApicurio Codegen generates Java JAX-RS server stubs and client code from OpenAPI specifications, enabling d...Oapi-CodegenCommand-line tool and Go library that converts OpenAPI 3.0 and 3.1 specifications into Go server-side, clie...Qodo GenAI pair-programmer delivered as JetBrains and VS Code IDE plugins for context-aware code generation, test g...AutoRest C# GeneratorThe AutoRest C# generator (@autorest/csharp) produces .NET client libraries from OpenAPI specifications. It...AutoRest CoreThe AutoRest Core package (@autorest/core) is the central engine that orchestrates code generation from Ope...AutoRest Go GeneratorThe AutoRest Go generator (@autorest/go) produces Go client libraries from OpenAPI specifications, generati...AutoRest Java GeneratorThe AutoRest Java generator (@autorest/java) produces Java client libraries from OpenAPI specifications, ge...AutoRest Python GeneratorThe AutoRest Python generator (@autorest/python) produces Python client libraries from OpenAPI specificatio...AutoRest TypeScript GeneratorThe AutoRest TypeScript generator (@autorest/typescript) produces TypeScript and JavaScript client librarie...Liblab SDK GeneratorCloud-based generator that produces customizable, type-safe SDKs in seven target stacks (TypeScript, Python...Liblab Terraform Provider GeneratorGenerates a Terraform provider from an OpenAPI specification, enabling Infrastructure-as-Code workflows aga...Scalar SDK GenerationHosted SDK generation that produces type-safe client libraries from an OpenAPI document for TypeScript, Pyt...Apache Thrift IDLThe Thrift Interface Definition Language (IDL) is used to define data types and service interfaces in a lan...
Emerging 27 Early or largely undocumented
TypeScript Compiler APIProgrammatic access to the TypeScript compiler. The Compiler API allows developers to parse TypeScript file...OpenAPI TypeScript CodegenThe openapi CLI and Node.js library. Consumes an OpenAPI 2.0 or 3.0 specification and writes a typed TypeSc...Buf CLIThe Buf CLI is a local Protobuf development toolchain providing linting, breaking change detection, code ge...Buf Schema Registry (BSR)The Buf Schema Registry (BSR) is a centralized repository for managing, distributing, and documenting Proto...Genql GraphQL APIFully-typed TypeScript client generated from any GraphQL schema, enabling type-safe query building with IDE...NSwagNSwag is an open source .NET toolchain for generating C# and TypeScript API clients and Swagger/OpenAPI spe...TypeSpec CompilerThe TypeSpec compiler processes `.tsp` TypeSpec files and emits output for configured emitters (OpenAPI, JS...TypeSpec JSON Schema EmitterEmits JSON Schema documents from TypeSpec model definitions, enabling data validation and type documentatio...TypeSpec OpenAPI EmitterThe TypeSpec OpenAPI emitter converts TypeSpec definitions to OpenAPI 3.0 specifications. It supports HTTP ...TypeSpec Protobuf EmitterEmits Protocol Buffer `.proto` files from TypeSpec service definitions, enabling gRPC service generation fr...gqlgen GraphQL APISchema-first Go library for building type-safe GraphQL servers with automatic code generation, resolver sca...Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...Redux Toolkit APIThe official, opinionated, batteries-included toolset for efficient Redux development. Redux Toolkit simpli...Relay CompilerThe Relay Compiler is Meta's ahead-of-time GraphQL compiler that generates optimized runtime artifacts and ...Swagger CodegenSwagger Codegen generates server stubs, client SDKs, and API documentation from OpenAPI specifications in o...Locofy AIAI layer that powers automatic tagging, responsive layout suggestions, component detection, and code genera...Twirp RPC FrameworkTwirp is a simple RPC framework with protobuf service definitions. Define your service in a .proto file and...Jinja2Jinja is a fast, expressive, and extensible templating engine for Python. Used in API code generation (Cook...Mustache TemplatesMustache is a logic-less template syntax available for HTML, config files, source code, and more. Used wide...OpenAPI GeneratorOpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation a...Konfig SDK GenerationCapability area (endpointsModeled - no documented public REST endpoint). Generates idiomatic client-library...Cap'n Proto Language BindingsCommunity-maintained language bindings implement Cap'n Proto serialization and, in many cases, the full RPC...Cap'n Proto Schema LanguageThe Cap'n Proto schema language is used to define message types in .capnp files that are then compiled into...HumanEval BenchmarkHumanEval is OpenAI's evaluation harness for code-generation models, described in its README as "an evaluat...JSON StructureJSON Structure is an emerging open specification that extends and complements JSON Schema with a clearer, m...Operator SDKThe Operator SDK provides tools for building Kubernetes operators. It includes scaffolding commands, code g...Protocol BuffersProtocol Buffers (protobuf) is Google's language-neutral, platform-neutral extensible mechanism for seriali...
Score breakdown
Frequency
55.2
log-scaled weighted occurrences
Breadth
1.8
spread across providers
Quality lift
33.7
mean composite of providers using it
Cohesion
13.4
strength of nearest seed neighbor
Related tags
OpenAPI 26 co-occurrences
API Design 9 co-occurrences
Swagger 6 co-occurrences
SDK Generation 6 co-occurrences
Protocol Buffers 6 co-occurrences
TypeScript 14 co-occurrences
Developer Experience 7 co-occurrences
JSON-Schema 6 co-occurrences
Where this tag comes from
Provider tag51
Api tag59
Cohort brief
Auto-generatedThe 65 providers in the APIs.io catalog tagged Code Generation, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
65
all scored
Mean Kin Score
27.7
+7.0 vs catalog 20.7
Mean Agent Readiness
10.9
+1.2 vs catalog 9.7
Spread
5–63.7
median 27.2 · σ 12.4
How the 65 split by band
Exemplar 0Strong 2Developing 10Thin 22Emerging 27Minimal 4
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Operational Transparency | 24.2 | 11.3 | +12.9 | 65 |
| Developer Ergonomics | 29.2 | 17.9 | +11.3 | 65 |
| Access Clarity | 28.4 | 22.3 | +6.1 | 65 |
| Contract Governance | 12.4 | 6.4 | +6 | 65 |
| Discoverability | 65.4 | 60.4 | +5 | 65 |
| Contract Quality | 20.2 | 17.5 | +2.7 | 65 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 14% | 16% | -2 |
| MCP server (first-party) | 3% | 7% | -4 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 5% | 9% | -4 |
| Security | 95% | 88% | +7 |
| Arazzo workflows | 3% | 2% | +1 |
| Governance rules | 35% | 13% | +22 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 GitHub Copilot 63.7
- 2 Swagger Codegen 58.1
- 3 APIMatic 51.6
- 4 Speakeasy 51
- 5 Hey API 45.7
- 6 Relace 45.6
- 7 OpenHands 44.8
- 8 Google Gemini 42.4
- 9 Scalar 40.3
- 10 Lightsprint 39.9
Top by Agent Readiness
- 1 GitHub Copilot 40.6
- 2 Relace 37.4
- 3 Hey API 34.7
- 4 APIMatic 31.9
- 5 Google Gemini 30.2
- 6 Speakeasy 29.5
- 7 Scalar 28.5
- 8 Speakeasy 28.1
- 9 v0 27.3
- 10 Swagger Codegen 26.1
All 65 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.
MCP server
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Tools for tags
7 MCP tools reach this
find_tagsBrowse and filter every tag in the catalog.get_cohortThis tag as a scored cohort — every provider carrying it, with scores.cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
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This tag
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All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/code-generation"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/code-generation/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.