emerging · 0.1 capability action

Code Generation

Score 22.9 / 100 51 providers +13 via APIs 58 APIs Search apis.io →

Providers using this tag (51)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 3 Solid coverage with minor gaps
GitHub CopilotAgentsArtificial IntelligenceCode Review1 API64.1BufgRPCKafkaOpen-Source2 APIs61.0Swagger CodegenClient LibrariesOpen-SourceOpenAPI3 APIs56.2
Developing 10 Usable, with meaningful gaps to close
BallerinaIntegrationOrchestrationsOpen-SourceProgramming Language1 API53.6Google GeminiAgentic AIArtificial IntelligenceEmbeddings1 API52.2APIMaticAPI TransformationDeveloper ExperienceDeveloper Tools1 API49.6ScalarAPI ClientAPI DocumentationAPI References1 API49.4RelaceCompanyArtificial IntelligenceCoding Agents1 API44.5Hey APIDeveloper ToolsOpenAPISDK1 API43.7OpenHandsArtificial IntelligenceAgentsAutonomousOpen-Source1 API43.6OpenAPI GeneratorDocumentationOpen-SourceOpenAPI1 API40.6The GuildAPI CompositionAPI GatewayAPI ObservabilityBreaking Change Detection10 APIs40.6LightsprintCompanyDeveloper ToolsArtificial IntelligenceAgents1 API39.9
Thin 21 Limited public surface area
smolagentsAI AgentsMulti-AgentPython1 API39.0FernAgent ReadyArtificial IntelligenceAPI DefinitionsAsyncAPI1 API38.7KiotaMicrosoftOpenAPISDK1 API38.1SpeakeasyAPI LifecycleSDK GenerationClient LibraryAPI Design1 API36.7TabbyAI Coding AssistantCode CompletionOpen-SourceDeveloper Tools1 API36.5Apache ThriftCross-LanguageIDLRPC2 APIs34.4Refitter.NETC#OpenAPI2 APIs34.1OgenGoOpenAPISDK1 API33.1poolsideCompanyEnterpriseArtificial IntelligenceMachine-Learning1 API32.6TypeSpecAPI DesignDeveloper ToolsOpenAPI6 APIs32.2FactoryArtificial IntelligenceAgentsAutonomousDeveloper Tools3 APIs32.0OrvalOpenAPISwaggerSDK1 API31.6Oapi-CodegenDeveloper ToolsGoOpenAPI1 API31.2v0Artificial IntelligenceApp BuilderVercel1 API30.8StainlessDocumentationDeveloper ExperienceMCP1 API29.4AutoRestMicrosoftOpenAPISDK Generation6 APIs29.0LiblabSDKSDK GenerationOpenAPI4 APIs28.8SmithyIDLSDKAPI Design2 APIs27.4AiderArtificial IntelligenceAI Pair ProgrammingDeveloper ToolsCLI15 APIs27.3GenqlGraphQLTypeScriptSDK1 API27.3Apache ThriftApacheCross-LanguageOpen-Source1 API26.4
Emerging 13 Early or largely undocumented
Relay CompilerGraphQLReactMeta2 APIs25.2OpenAPI TypeScript CodegenOpenAPISwaggerSDK1 API24.7NSwag.NETASP.NET CoreC#1 API24.2TemplatesTemplatesAPI DesignDocumentation6 APIs23.9Prompt DrivenCompanyDeveloper ToolsArtificial Intelligence21.3gqlgenGraphQLGoSchema-First1 API20.4KonfigSDK GenerationClient LibraryAPI DocumentationDeveloper Tools6 APIs20.4JulesArtificial IntelligenceCoding AgentsAutonomous AgentAsynchronous Agent1 API19.7StainlessSDK GenerationOpenAPIAPI ToolingDeveloper Experience1 API19.3Connect-RPCApache 2.0BufConnect Protocol5 APIs16.7Cap'n ProtoBinary FormatCapability-Based SecurityIPC5 APIs15.8Refact.aiArtificial IntelligenceCoding AssistantAI AgentAutonomous Agents2 APIs14.3Clad LabsCompanyDeveloper ToolsIDEAI Coding Agents12.3
Minimal 4 Almost no public developer surface
AmplicationCompanyBackendDeveloper Tools10.7ReqBinAPI TestingBrowserDeveloper Tools7.7BlitzyCompanyArtificial IntelligenceSoftware Development7.3SyntropyCompanyArtificial IntelligenceAI AgentsAgentic Coding5.0

APIs with this tag (58)

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 4 Solid coverage with minor gaps
GitHub Copilot Coding AgentAutonomous coding agent that works in the background to complete tasks, spinning up secure development envi...64.1Buf CLIThe Buf CLI is a local Protobuf development toolchain providing linting, breaking change detection, code ge...61.0Buf Schema Registry (BSR)The Buf Schema Registry (BSR) is a centralized repository for managing, distributing, and documenting Proto...61.0Swagger Codegen CLIThe Swagger Codegen command-line interface for generating code artifacts locally. Available as a JAR file a...56.2
Developing 9 Usable, with meaningful gaps to close
Speakeasy MCP Server GenerationGenerate production-ready MCP server code from OpenAPI specifications. Deploy on your own infrastructure, c...53.3Speakeasy SDK GenerationGenerate idiomatic, type-safe SDKs in 7+ languages from OpenAPI specs. Supports TypeScript, Python, Go, Jav...53.3Speakeasy Terraform GenerationTurn your OpenAPI spec into a production-ready Terraform provider without the manual work. Automatically ke...53.3Scalar SDK GenerationHosted SDK generation that produces type-safe client libraries from an OpenAPI document for TypeScript, Pyt...49.4Scalar SDKsScalar SDKs generates type-safe client libraries from OpenAPI specifications. Supported languages include T...49.4AsyncAPI Server APIThe AsyncAPI Server API is the only callable HTTP API the AsyncAPI Initiative operates. It exposes the offi...44.4TypeScript Compiler APIProgrammatic access to the TypeScript compiler. The Compiler API allows developers to parse TypeScript file...44.4Hey API Openapi-Ts@hey-api/openapi-ts is an OpenAPI to TypeScript code generator that emits production-grade SDKs, types, val...43.7GraphQL Code GeneratorGraphQL Code Generator generates typed code from GraphQL schemas and operations, supporting TypeScript, Rea...40.6
Thin 29 Limited public surface area
FernFern transforms a single API source of truth (OpenAPI, AsyncAPI, Protobuf, OpenRPC, or the Fern Definition ...38.7KiotaKiota generates strongly-typed, lightweight API clients from OpenAPI descriptions in C#, Dart, Go, Java, PH...38.1Ambassador Blackbird API Development PlatformBlackbird is an API development platform that helps developers design, build, test, and manage APIs with AI...36.7Apache Thrift IDLThe Thrift Interface Definition Language (IDL) is used to define data types and service interfaces in a lan...34.4RefitterRefitter is a .NET source generator and CLI tool that produces Refit HTTP client interfaces from OpenAPI 2....34.1OgenThe ogen code generator. Invoked as a build-time CLI against a local OpenAPI v3 document — `ogen [options] ...33.1Apicurio CodegenApicurio Codegen generates Java JAX-RS server stubs and client code from OpenAPI specifications, enabling d...32.6TypeSpec CompilerThe TypeSpec compiler processes `.tsp` TypeSpec files and emits output for configured emitters (OpenAPI, JS...32.2TypeSpec JSON Schema EmitterEmits JSON Schema documents from TypeSpec model definitions, enabling data validation and type documentatio...32.2TypeSpec OpenAPI EmitterThe TypeSpec OpenAPI emitter converts TypeSpec definitions to OpenAPI 3.0 specifications. It supports HTTP ...32.2TypeSpec Protobuf EmitterEmits Protocol Buffer `.proto` files from TypeSpec service definitions, enabling gRPC service generation fr...32.2OrvalOrval generates TypeScript API clients, TanStack Query/SWR hooks, Angular services, SolidStart primitives, ...31.6Qodo GenAI pair-programmer delivered as JetBrains and VS Code IDE plugins for context-aware code generation, test g...31.6Oapi-CodegenCommand-line tool and Go library that converts OpenAPI 3.0 and 3.1 specifications into Go server-side, clie...31.2Swagger CodegenSwagger Codegen generates server stubs, client SDKs, and API documentation from OpenAPI specifications in o...30.1Stainless CLIThe Stainless CLI generates production-ready command-line interfaces from an OpenAPI specification. Generat...29.4Stainless MCP ServersStainless generates production-ready MCP (Model Context Protocol) servers optimized for agentic coding and ...29.4Stainless SDK GeneratorGenerate production-ready SDKs in TypeScript, Python, Go, Java, Kotlin, Ruby, C#, PHP, and Terraform from a...29.4Stainless Terraform ProvidersStainless generates production-ready Terraform providers from an OpenAPI specification, enabling infrastruc...29.4AutoRest C# GeneratorThe AutoRest C# generator (@autorest/csharp) produces .NET client libraries from OpenAPI specifications. It...29.0AutoRest CoreThe AutoRest Core package (@autorest/core) is the central engine that orchestrates code generation from Ope...29.0AutoRest Go GeneratorThe AutoRest Go generator (@autorest/go) produces Go client libraries from OpenAPI specifications, generati...29.0AutoRest Java GeneratorThe AutoRest Java generator (@autorest/java) produces Java client libraries from OpenAPI specifications, ge...29.0AutoRest Python GeneratorThe AutoRest Python generator (@autorest/python) produces Python client libraries from OpenAPI specificatio...29.0AutoRest TypeScript GeneratorThe AutoRest TypeScript generator (@autorest/typescript) produces TypeScript and JavaScript client librarie...29.0Liblab SDK GeneratorCloud-based generator that produces customizable, type-safe SDKs in seven target stacks (TypeScript, Python...28.8Liblab Terraform Provider GeneratorGenerates a Terraform provider from an OpenAPI specification, enabling Infrastructure-as-Code workflows aga...28.8Genql GraphQL APIFully-typed TypeScript client generated from any GraphQL schema, enabling type-safe query building with IDE...27.3Apache ThriftApache Thrift is a lightweight, language-independent software stack for point-to-point RPC implementation. ...26.4
Emerging 16 Early or largely undocumented
Relay CompilerThe Relay Compiler is Meta's ahead-of-time GraphQL compiler that generates optimized runtime artifacts and ...25.2Redux Toolkit APIThe official, opinionated, batteries-included toolset for efficient Redux development. Redux Toolkit simpli...24.9OpenAPI TypeScript CodegenThe openapi CLI and Node.js library. Consumes an OpenAPI 2.0 or 3.0 specification and writes a typed TypeSc...24.7NSwagNSwag is an open source .NET toolchain for generating C# and TypeScript API clients and Swagger/OpenAPI spe...24.2Jinja2Jinja is a fast, expressive, and extensible templating engine for Python. Used in API code generation (Cook...23.9Mustache TemplatesMustache is a logic-less template syntax available for HTML, config files, source code, and more. Used wide...23.9OpenAPI GeneratorOpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation a...23.9JSON StructureJSON Structure is an emerging open specification that extends and complements JSON Schema with a clearer, m...22.5Twirp RPC FrameworkTwirp is a simple RPC framework with protobuf service definitions. Define your service in a .proto file and...22.4HumanEval BenchmarkHumanEval is OpenAI's evaluation harness for code-generation models, described in its README as "an evaluat...21.7gqlgen GraphQL APISchema-first Go library for building type-safe GraphQL servers with automatic code generation, resolver sca...20.4Konfig SDK Generation Platform (Sunset)Konfig's developer platform for generating, validating, and publishing SDKs, API reference documentation, a...20.4Locofy AIAI layer that powers automatic tagging, responsive layout suggestions, component detection, and code genera...18.0Cap'n Proto Language BindingsCommunity-maintained language bindings implement Cap'n Proto serialization and, in many cases, the full RPC...15.8Cap'n Proto Schema LanguageThe Cap'n Proto schema language is used to define message types in .capnp files that are then compiled into...15.8Operator SDKThe Operator SDK provides tools for building Kubernetes operators. It includes scaffolding commands, code g...13.4

Companies reaching this through an API (13)

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 API Specifications Apicurio AsyncAPI Evals Locofy Operator Framework Qodo Redux Speakeasy Swagger Twirp TypeScript

Score breakdown

Frequency
54.8
log-scaled weighted occurrences
Breadth
1.4
spread across providers
Quality lift
35.7
mean composite of providers using it
Cohesion
11.5
strength of nearest seed neighbor

Related tags

OpenAPI 25 co-occurrences SDK Generation 6 co-occurrences Swagger 6 co-occurrences API Design 9 co-occurrences Developer Experience 7 co-occurrences TypeScript 14 co-occurrences JSON-Schema 6 co-occurrences Protocol Buffers 5 co-occurrences

Where this tag comes from

Provider tag51
Api tag58

Cohort brief

Auto-generated

The 51 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
51
all scored
Mean Kin Score
31.5
+7.6 vs catalog 23.9
Mean Agent Readiness
13
+1 vs catalog 12
Spread
5–64.1
median 31.2 · σ 13.6
How the 51 split by band
Exemplar 0Strong 3Developing 10Thin 21Emerging 13Minimal 4
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 39 23.4 +15.6 51
Operational Transparency 28.5 14 +14.5 51
Contract Governance 12.3 6.4 +5.9 51
Access Clarity 31 26.5 +4.5 51
Discoverability 64 61.2 +2.8 51
Contract Quality 21.8 19.8 +2 51

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
ArtifactThis cohortCatalogDifference
MCP server (any) 16% 10% +6
MCP server (first-party) 12% 13% -1
Agent Skills 0% 0% 0
OAuth scopes 6% 11% -5
Security 96% 97% -1
Arazzo workflows 4% 2% +2
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. 1 GitHub Copilot 64.1
  2. 2 Buf 61
  3. 3 Swagger Codegen 56.2
  4. 4 Ballerina 53.6
  5. 5 Google Gemini 52.2
  6. 6 APIMatic 49.6
  7. 7 Scalar 49.4
  8. 8 Relace 44.5
  9. 9 Hey API 43.7
  10. 10 OpenHands 43.6
Top by Agent Readiness
  1. 1 Buf 51.7
  2. 2 Ballerina 40.7
  3. 3 GitHub Copilot 38.5
  4. 4 Relace 37.4
  5. 5 Scalar 37.2
  6. 6 Hey API 34.7
  7. 7 APIMatic 31.9
  8. 8 Google Gemini 30.2
  9. 9 Speakeasy 28.1
  10. 10 v0 27.3
All 51 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 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

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/code-generation"
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"

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