emerging · 0.0 capability schema

Client Library

Score 21.4 / 100 27 providers 46 APIs Search apis.io →

Providers using this tag (27)

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

Strong 3 Solid coverage with minor gaps
Clerk.ioArtificial IntelligenceCommerceE-CommerceEmail Marketing2 APIs59.9Azure Event HubsBig DataEvent StreamingIoTMessage Ingestion10 APIs57.1Adobe PhotoshopAi MlCreative CloudImage EditingPhotoshop16 APIs55.8
Developing 7 Usable, with meaningful gaps to close
TelegramBotsChatMessagingNotification10 APIs46.9ConvexBackendDatabaseFunctionsReal-Time14 APIs46.2GeminiAgentsArtificial IntelligenceAudio UnderstandingBatch Processing20 APIs46.0DataikuAnalyticsArtificial IntelligenceData PlatformData Science34 APIs45.8GOV.UK NotifyNotificationEmailSMSText Messages9 APIs45.0CartoLocation IntelligenceGeospatialMappingGIS10 APIs43.6ElectricSQLDeveloper ToolsDatabaseSyncLocal-First3 APIs41.7
Thin 11 Limited public surface area
CloudEventsCloud-NativeEventGraduatedInteroperability12 APIs38.5CalicoCNIContainerseBPFKubernetes10 APIs37.6Microsoft ProjectBudgetingGantt ChartsMicrosoftPortfolio-Management16 APIs36.8SpeakeasyAPI LifecycleSDK GenerationAPI Design13 APIs36.3WattTimeEmissionsClimateCarbonEnergy6 APIs35.0Kubeflow PipelinesData ScienceKubernetesMachine-LearningMLOps8 APIs34.1EventbriteEventEvent TechnologyTicketingMarketplace11 APIs34.0Microsoft SharePointCollaborationDocument-ManagementEnterprise Content ManagementIntranet8 APIs34.0NostrNostrDecentralized SocialOpen ProtocolRelays4 APIs30.6linode23 APIs29.6Notary ProjectCloud-NativeContainer SecurityImage SigningIncubating4 APIs26.7
Emerging 6 Early or largely undocumented
The Update Framework (TUF)CNCFCloud-NativeGraduatedSecurity7 APIs26.0FernAPI LifecycleSDK GenerationAPI Documentation5 APIs24.6Notional FinanceDeFiFixed-Rate LendingBlockchainEthereum4 APIs22.8Lens ProtocolLens ProtocolOnchain SocialWeb3Social Graph6 APIs21.0KonfigSDK GenerationAPI DocumentationDeveloper Tools5 APIs16.1PostgreSQLDatabaseRelational DatabaseSQLOpen-Source4 APIs11.0

APIs with this tag (46)

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 3 Solid coverage with minor gaps
Clerk.js Client LibraryClerk.js is the browser-side JavaScript library for embedding Clerk.io recommendation slots, search, and em...59.9Azure Event Hubs SDKClient libraries for various programming languages to interact with Event Hubs.57.1Adobe Firefly Services SDK for JavaScriptA unified Node.js and TypeScript SDK that provides typed client libraries for accessing the Photoshop API a...55.8
Developing 18 Usable, with meaningful gaps to close
Telegram TDLib (Telegram Database Library)TDLib is a cross-platform, fully functional Telegram client library for third-party developers. TDLib takes...46.9Convex JavaScript SDKThe Convex JavaScript SDK is a collection of TypeScript/JavaScript packages for building applications on th...46.2Gemini C# SDKC# client library for the Gemini API, providing an interface for developers to integrate Google generative ...46.0Gemini Go SDKGo client library for the Gemini API, providing an interface for developers to integrate Google generative ...46.0Gemini Java SDKJava client library for the Gemini API, providing an interface for developers to integrate Google generativ...46.0Gemini Node.js SDKNode.js client library for the Gemini API.46.0Gemini Python SDKPython client library for the Gemini API.46.0Dataiku Python APIPython client library for interacting with Dataiku DSS.45.8Dataiku R APIR client library for interacting with Dataiku DSS.45.8GOV.UK Notify .NET ClientOfficial .NET client library for the GOV.UK Notify API supporting C# and other .NET languages for sending g...45.0GOV.UK Notify Java ClientOfficial Java client library for the GOV.UK Notify API, providing methods for sending emails, SMS messages,...45.0GOV.UK Notify Node.js ClientOfficial Node.js client library for the GOV.UK Notify API for sending government notifications via email, S...45.0GOV.UK Notify PHP ClientOfficial PHP client library for the GOV.UK Notify API for sending government notifications via email, SMS, ...45.0GOV.UK Notify Python ClientOfficial Python client library for the GOV.UK Notify API. Wraps the REST API with idiomatic Python methods ...45.0GOV.UK Notify Ruby ClientOfficial Ruby client library for the GOV.UK Notify API for sending government notifications via email, SMS,...45.0CARTO for deck.glClient library providing deck.gl layers for CARTO vector, H3, quadbin, raster, and query sources, simplifyi...43.6CARTO for ReactReact library of components and hooks for building CARTO-powered location intelligence applications with wi...43.6Electric TypeScript ClientThe official @electric-sql/client NPM package that wraps the HTTP Sync API with two high-level primitives: ...41.7
Thin 15 Limited public surface area
CloudEvents Go SDKThe official Go SDK for CloudEvents provides libraries for producing and consuming CloudEvents in Go applic...38.5CloudEvents Java SDKThe official Java SDK for CloudEvents provides libraries for producing and consuming CloudEvents in Java ap...38.5CloudEvents JavaScript SDKThe official JavaScript SDK for CloudEvents provides libraries for producing and consuming CloudEvents in N...38.5CloudEvents Python SDKThe official Python SDK for CloudEvents provides libraries for producing and consuming CloudEvents in Pytho...38.5Calico Client APIThe Calico Client Library provides programmatic access to manage Calico resources such as network policies,...37.6Microsoft Project Online CSOM APIClient-Side Object Model API for programmatic access to Project Online and Project Server. Provides .NET, S...36.8WattTime Python ClientOfficial Python SDK for the WattTime API providing simplified access to real-time, forecast, and historical...35.0Kubeflow Pipelines Go ClientGo client library for interacting with the Kubeflow Pipelines API programmatically from Go applications.34.1Kubeflow Pipelines Python SDKPython SDK for building, compiling, and submitting ML pipelines. Provides decorators and utilities to defin...34.1Eventbrite Python SDKThe Eventbrite Python SDK is an open-source client library maintained by Eventbrite that provides idiomatic...34.0SharePoint CSOM (Client-Side Object Model)Client-side object model for SharePoint that provides access to SharePoint objects through .NET managed or ...34.0nostr-tools JavaScript Librarynostr-tools is the de-facto JavaScript/TypeScript library for Nostr clients and bots. It implements event c...30.6Linode Go SDKThe Linode Go SDK (linodego) is the official Go client library for the Linode API v4. It provides idiomatic...29.6Linode Python SDKThe Linode Python SDK (linode_api4) is the official Python client library for interacting with the Linode A...29.6notation-go Librarynotation-go is the official Go library for signing and verifying OCI artifacts using the Notary Project spe...26.7
Emerging 10 Early or largely undocumented
TUF Go ImplementationA Go implementation of The Update Framework (TUF), heavily influenced by python-tuf's design. Provides meta...26.0TUF JavaScript ImplementationA JavaScript/TypeScript implementation of The Update Framework (TUF) for use in Node.js environments and br...26.0TUF Python Reference ImplementationThe official Python reference implementation of The Update Framework (TUF) specification. Provides a metada...26.0TUF Rust ImplementationA Rust implementation of The Update Framework (TUF) specification providing a strongly-typed API for workin...26.0Fern SDK GenerationCapability area (CLI/platform, not a hosted REST API) that generates idiomatic, type-safe client SDKs in Ty...24.6Notional Typescript SDKClient-side Typescript SDK for interacting with Notional Finance smart contracts. Provides helper methods f...22.8Lens TypeScript SDKThe Lens SDK is the official TypeScript client for the Lens API. It wraps GraphQL operations behind typed f...21.0Konfig SDK GenerationCapability area (endpointsModeled - no documented public REST endpoint). Generates idiomatic client-library...16.1Konfig SDK Publishing and UpdatesCapability area (endpointsModeled). Tests and publishes generated SDKs to package registries (npm, PyPI, Ma...16.1libpq C Client Librarylibpq is the official C application programmer's interface to PostgreSQL and the underlying library used by...11.0

Score breakdown

Frequency
44.5
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
44.3
mean composite of providers using it
Cohesion
8.0
strength of nearest seed neighbor

Related tags

Go 6 co-occurrences JavaScript 12 co-occurrences TypeScript 8 co-occurrences Python 9 co-occurrences SDK 17 co-occurrences Account 5 co-occurrences Event 6 co-occurrences Open-Source 5 co-occurrences

Where this tag comes from

Api tag46
Provider tag3

Cohort brief

Auto-generated

The 27 providers in the APIs.io catalog tagged Client Library, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
27
all scored
Mean Kin Score
36.4
+15.7 vs catalog 20.7
Mean Agent Readiness
20.3
+10.6 vs catalog 9.7
Spread
11–59.9
median 36.3 · σ 11.9
How the 27 split by band
Exemplar 0Strong 3Developing 7Thin 11Emerging 6Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 44.4 17.5 +26.9 27
Operational Transparency 28 11.3 +16.7 27
Developer Ergonomics 31.4 17.9 +13.5 27
Access Clarity 34 22.3 +11.7 27
Discoverability 69.2 60.4 +8.8 27
Contract Governance 15.2 6.4 +8.8 27

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) 19% 16% +3
MCP server (first-party) 7% 7% 0
Agent Skills 0% 0% 0
OAuth scopes 15% 9% +6
Security 96% 88% +8
Arazzo workflows 15% 2% +13
Governance rules 59% 13% +46

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 Clerk.io 59.9
  2. 2 Azure Event Hubs 57.1
  3. 3 Adobe Photoshop 55.8
  4. 4 Telegram 46.9
  5. 5 Convex 46.2
  6. 6 Gemini 46
  7. 7 Dataiku 45.8
  8. 8 GOV.UK Notify 45
  9. 9 Carto 43.6
  10. 10 ElectricSQL 41.7
Top by Agent Readiness
  1. 1 Adobe Photoshop 43.5
  2. 2 Microsoft SharePoint 39.4
  3. 3 WattTime 30.6
  4. 4 Clerk.io 30.3
  5. 5 Convex 30.1
  6. 6 Azure Event Hubs 29.1
  7. 7 Speakeasy 28.1
  8. 8 Carto 26.8
  9. 9 Microsoft Project 26.1
  10. 10 Gemini 23.4
All 27 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

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

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This tag 
curl "https://apis.io/api/v1/tags/client-library"
All tags 
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As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/client-library"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/client-library/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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