Code Generation
Providers using this tag (48)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 1 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 11 Usable, with meaningful gaps to close
Thin 16 Limited public surface area
Emerging 12 Early or largely undocumented
Minimal 4 Almost no public developer surface
APIs with this tag (50)
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 →
Exemplar 4 Complete, well-documented, and agent-ready
Scalar SDKsScalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include T...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...
Strong 5 Solid coverage with minor gaps
GitHub Copilot Coding AgentAutonomous coding agent that works in the background to complete tasks, spinning up secure development envi...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...Eden AI Code Generation APIThe Code Generation API from Eden AI — 1 operation(s) for code generation.Swagger Codegen CLIThe Swagger Codegen command-line interface for generating code artifacts locally. Available as a JAR file a...
Developing 9 Usable, with meaningful gaps to close
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...KiotaKiota generates strongly-typed, lightweight API clients from OpenAPI descriptions in C#, Dart, Go, Java, PH...TypeScript Compiler APIProgrammatic access to the TypeScript compiler. The Compiler API allows developers to parse TypeScript file...Hey API Openapi-Ts@hey-api/openapi-ts is an OpenAPI to TypeScript code generator that emits production-grade SDKs, types, val...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...
Thin 21 Limited public surface area
OrvalOrval generates TypeScript API clients, TanStack Query/SWR hooks, Angular services, SolidStart primitives, ...OgenThe ogen code generator. Invoked as a build-time CLI against a local OpenAPI v3 document — `ogen [options] ...GraphQL Code GeneratorGraphQL Code Generator generates typed code from GraphQL schemas and operations, supporting TypeScript, Rea...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...RefitterRefitter is a .NET source generator and CLI tool that produces Refit HTTP client interfaces from OpenAPI 2....Ambassador Blackbird API Development PlatformBlackbird is an API development platform that helps developers design, build, test, and manage APIs with AI...Apache Thrift IDLThe Thrift Interface Definition Language (IDL) is used to define data types and service interfaces in a lan...Oapi-CodegenCommand-line tool and Go library that converts OpenAPI 3.0 and 3.1 specifications into Go server-side, clie...Apicurio CodegenApicurio Codegen generates Java JAX-RS server stubs and client code from OpenAPI specifications, enabling d...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...Qodo GenAI pair-programmer delivered as JetBrains and VS Code IDE plugins for context-aware code generation, test g...Redux Toolkit APIThe official, opinionated, batteries-included toolset for efficient Redux development. Redux Toolkit simpli...OpenAPI TypeScript CodegenThe openapi CLI and Node.js library. Consumes an OpenAPI 2.0 or 3.0 specification and writes a typed TypeSc...
Emerging 11 Early or largely undocumented
NSwagNSwag is an open source .NET toolchain for generating C# and TypeScript API clients and Swagger/OpenAPI spe...Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...Genql GraphQL APIFully-typed TypeScript client generated from any GraphQL schema, enabling type-safe query building with IDE...Relay CompilerThe Relay Compiler is Meta's ahead-of-time GraphQL compiler that generates optimized runtime artifacts and ...Twirp RPC FrameworkTwirp is a simple RPC framework with protobuf service definitions. Define your service in a .proto file and...HumanEval BenchmarkHumanEval is OpenAI's evaluation harness for code-generation models, described in its README as "an evaluat...gqlgen GraphQL APISchema-first Go library for building type-safe GraphQL servers with automatic code generation, resolver sca...Locofy AIAI layer that powers automatic tagging, responsive layout suggestions, component detection, and code genera...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...Operator SDKThe Operator SDK provides tools for building Kubernetes operators. It includes scaffolding commands, code g...
Companies reaching this through an API (12)
These companies publish an API, specification or operation carrying “Code Generation” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Ambassador
Apicurio
Eden AI
Evals
Locofy
Operator Framework
Qodo
Redux
Speakeasy
Swagger
Twirp
TypeScript
Score breakdown
Frequency
53.8
log-scaled weighted occurrences
Breadth
1.2
spread across providers
Quality lift
40.6
mean composite of providers using it
Cohesion
10.4
strength of nearest seed neighbor
Where this tag sits
Related tags
SDK Generation 14 co-occurrences
Swagger 6 co-occurrences
OpenAPI 21 co-occurrences
TypeScript 14 co-occurrences
API Design 6 co-occurrences
Go 7 co-occurrences
CLI 16 co-occurrences
JSON Schema 5 co-occurrences
Where this tag comes from
Provider tag48
Api tag51
Openapi tag1
Openapi op tag1
Cohort brief
Auto-generatedThe 48 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
48
all scored
Mean Kin Score
33.5
+10.6 vs catalog 22.9
Mean Agent Readiness
15.1
+3.2 vs catalog 11.9
Spread
3.3–71.7
median 33 · σ 16.2
How the 48 split by band
Exemplar 1Strong 4Developing 11Thin 16Emerging 12Minimal 4
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 40.8 | 23.2 | +17.6 | 48 |
| Operational Transparency | 29.7 | 13.7 | +16 | 48 |
| Contract Governance | 13.8 | 6.3 | +7.5 | 48 |
| Access Clarity | 31.9 | 26.5 | +5.4 | 48 |
| Contract Quality | 22.8 | 17.6 | +5.2 | 48 |
| Discoverability | 61.2 | 58.1 | +3.1 | 48 |
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) | 17% | 14% | +3 |
| MCP server (first-party) | 13% | 12% | +1 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 8% | 11% | -3 |
| Security | 96% | 98% | -2 |
| Arazzo workflows | 2% | 2% | 0 |
| Governance rules | 31% | 14% | +17 |
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 Scalar 71.7
- 2 GitHub Copilot 65.8
- 3 Buf 65.3
- 4 APIMatic 63.1
- 5 Swagger Codegen 57.6
- 6 Ballerina 53.9
- 7 Google Gemini 50.7
- 8 Liblab 47.6
- 9 Relace 46.4
- 10 Kiota 46.3
Top by Agent Readiness
- 1 Scalar 57.6
- 2 Buf 49.2
- 3 APIMatic 48.8
- 4 GitHub Copilot 46
- 5 WunderCorp 43.6
- 6 Ballerina 40.7
- 7 Relace 37.4
- 8 Hey API 32.6
- 9 Artem / A2A Sandbox 32.2
- 10 Google Gemini 29.9
All 48 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
5 October 2026, across 29093
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.