established · 0.2

Functions

Score 27.8 / 100 65 providers 62 APIs Search apis.io →
Variants seen in the corpus: Functionsfunctions

Providers using this tag (65)

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

Exemplar 1 Complete, well-documented, and agent-ready
EvervaultCompanyDataSecurityEncryption12 APIs66.6
Strong 15 Solid coverage with minor gaps
SwellCommerceHeadless CommerceAPI-FirstB2C34 APIs65.8ModalServerlessGPUCloud ComputeAI Infrastructure17 APIs65.1FactsetFinancialFinancial DataInvestment AnalyticsMarket Data460 APIs64.8AmigoCompanyArtificial IntelligenceHealthcareAI Agents72 APIs63.8SlackBotsChatCollaborationMessaging115 APIs62.3SeekrArtificial IntelligenceGenerative AIAgentsLLM35 APIs61.3ShopifyCommerceE-CommercePaymentsRetail213 APIs60.4InngestAI AgentsAgentKitBackground JobsConnect8 APIs59.7Microsoft Azure FunctionsAzureCloudComputeEvent-Driven23 APIs59.5DatabricksArtificial IntelligenceAnalyticsApache SparkBig Data57 APIs59.1Microsoft AzureAPI ManagementCloudCloud ComputingEnterprise1667 APIs57.3Amazon CloudFrontCloudFrontCDNContent DeliveryEdge3 APIs55.3BemCompanyDocument ProcessingUnstructured DataData Extraction22 APIs55.2ZavuCompanyMessagingSMSWhatsApp21 APIs55.2Amazon LambdaComputeEvent-DrivenFunction-as-a-Service2 APIs54.5
Developing 27 Usable, with meaningful gaps to close
OracleCloudDatabaseEnterpriseInfrastructure378 APIs53.0AWS Lambda12 APIs52.7Oracle Cloud InfrastructureCloud ComputingEnterprise CloudInfrastructure-as-a-ServiceOracle25 APIs51.3CouchbaseAnalyticsApp ServicesBackupCapella54 APIs50.6Adobe Creative CloudAi MlCloudCreativeDesign24 APIs49.7NetdataMonitoringObservabilityInfrastructureMetrics20 APIs49.2Microsoft Windows 10DesktopOperating SystemUWPWin3277 APIs49.0WebexCallingCollaborationCommunicationsEnterprise193 APIs48.2ScalewayArtificial IntelligenceCloud ComputingContainersDatabase74 APIs47.6Google Cloud FunctionsEvent-DrivenGoogle CloudServerless4 APIs47.0CriblConfigurationData LakeData PipelineData Routing32 APIs46.6ConvexBackendDatabaseReal-Time14 APIs46.2CrossplaneApache 2.0CNCFCloud-NativeComposition7 APIs46.0KnativeAuto-ScalingCloud-NativeEvent-DrivenGraduated13 APIs46.0Twilio SegmentCompanyCustomer Data PlatformCDPIdentity Resolution23 APIs45.2Microsoft ExcelAutomationData AnalysisMicrosoftMicrosoft-36511 APIs43.2SupabaseBackend-as-a-ServicePostgreSQLOpen-SourceAuthentication21 APIs42.3BraintrustArtificial IntelligenceLLMEvaluationObservability12 APIs42.2NhostGraphQLPostgreSQLAuthenticationFile Storage14 APIs41.4Zoho CliqMessagingTeam CollaborationChatBots22 APIs41.2GliaCompanyCustomer ServiceContact CenterBanking3 APIs41.0Amazon Web Services (AWS)Cloud ComputingInfrastructure-as-a-ServiceInfrastructurePlatform-as-a-Service5 APIs40.8Azure Stream AnalyticsStream ProcessingReal-Time AnalyticsIoTEvent Processing6 APIs40.8Azure FunctionsCloudComputeEvent-Driven1 API40.3BraintrustArtificial IntelligenceLLMObservabilityEvaluation29 APIs40.1Digital OceanCloudComputeServersInfrastructure37 APIs39.9Azure Function AppsAzureComputeFunction-as-a-Service1 API39.3
Thin 15 Limited public surface area
ACI.devAgent InfrastructureAgentsArtificial IntelligenceFunction Calling4 APIs38.1BlaxelArtificial IntelligenceAgentsInfrastructureSandboxes11 APIs37.6SieveArtificial IntelligenceVideoAudioMedia Processing2 APIs37.5Power QueryBusiness IntelligenceData IntegrationData TransformationETL6 APIs36.3Apache GeodeApacheCachingData GridDistributed Systems5 APIs35.0PubNubReal-TimeWebSocketsPub-SubIoT2 APIs34.1ModalServerlessComputeGPUAI Infrastructure8 APIs33.3CogniteIndustrial IoTManufacturingIndustrial DataDigital Twin90 APIs33.2Microsoft Excel (Advanced)AutomationBusiness IntelligenceData AnalysisOffice14 APIs33.2OpenObserveObservabilityLogsMetricsTraces33 APIs32.3Apache PulsarCloud-NativeMessagingMulti-TenantPub-Sub8 APIs31.4Amazon AppSyncAmazon AppSyncGraphQLAPI ManagementServerless9 APIs31.3CloudFrontAliasCDNCachingContent Delivery7 APIs30.0PrimitiveCompany22 APIs28.0IntegryEmbedded iPaaSIntegrationNative Integrations2 APIs27.8
Emerging 7 Early or largely undocumented
Apache OpenWhiskCloud-NativeEvent-DrivenFunction-as-a-ServiceServerless6 APIs23.8MoodleE-LearningEdTechLMSMoodle12 APIs22.1FermyonComputeWebAssemblyServerless15 APIs20.9LivePersonConversational AICustomer EngagementMessagingContact Center9 APIs18.8Amazon Web ServicesAmazonCloudNetworkIndex1804 APIs16.7Descartes LabsGeospatialGeospatial IntelligenceEarth ObservationSatellite Imagery6 APIs15.9SSTServerlessInfrastructure as CodeCloudflareTypeScript2 APIs11.3

APIs with this tag (62)

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 1 Complete, well-documented, and agent-ready
Evervault Functions APIEvervault [Functions](/functions) are secure serverless functions which allow you to process data encrypted...66.6
Strong 15 Solid coverage with minor gaps
Swell Apps PlatformSwell Apps extend the platform with custom data models (added fields or new entities), events (triggering f...65.8Modal Functions APIModal Function definitions, invocations, and scaling.65.1Factset Functions APIThe Functions API from Factset — 1 operation(s) for functions.64.8Amigo Functions APIThe Functions API from Amigo — 4 operation(s) for functions.63.8Slack Functions APIThe Functions API from Slack — 5 operation(s) for functions.62.3Seekr Functions APIThe Functions API from Seekr — 4 operation(s) for functions.61.3Shopify Discount Function APIThe Discount Function API enables developers to create a single discount that applies to cart lines, order ...60.4Inngest Functions APIList and invoke deployed Inngest functions.59.7Azure Functions Runtime APIThe Azure Functions host runtime provides HTTP endpoints for function invocation, admin operations, host st...59.5Databricks Functions APIThe Databricks Functions API is part of Unity Catalog and allows you to create, list, and delete user-defin...59.1Microsoft Azure Functions APIAzure Functions is an event-driven serverless compute platform that enables developers to build and run app...57.3Amazon CloudFront Functions APIOperations for managing CloudFront functions55.3Bem Functions APIFunctions are the core building blocks of data transformation in Bem. Each function type serves a specific ...55.2Zavu Functions APIThe Functions API from Zavu — 12 operation(s) for functions.55.2Amazon Lambda Functions APILambda function management54.5
Developing 26 Usable, with meaningful gaps to close
OCI Functions APIFully managed, serverless Functions-as-a-Service platform built on the open source Fn Project engine, suppo...53.0AWS Lambda Functions APICreate, configure, invoke, and manage Lambda functions52.7AWS Lambda Runtime APIThe Lambda Runtime API enables you to use custom runtimes to run functions in any programming language. The...52.7Oracle Cloud Infrastructure Functions APIThe Functions API from Oracle Cloud Infrastructure — 3 operation(s) for functions.51.3Couchbase Functions APIEndpoints for creating, retrieving, updating, and deleting Eventing Functions.50.6Adobe I/O RuntimeA serverless computing platform built on Apache OpenWhisk that enables developers to deploy and execute cus...49.7Netdata functions APIEverything related to functions49.2Microsoft Windows 10 Functions APIThe Functions API from Microsoft Windows 10 — 2 operation(s) for functions.49.0Webex Functions APIThe Functions API from Webex — 7 operation(s) for functions.48.2Scaleway Functions APIA function defines a procedure on how to change one element into another. The function remains static, whil...47.6Google Cloud Functions Functions APIOperations for managing cloud functions47.0Cribl Functions APIRetrieve available processing functions that can be used within pipelines for data transformation.46.6Convex Functions APIExecute any deployed function by its identifier using the unified run endpoint, which accepts the function ...46.2Crossplane Functions APIFunctions are Crossplane packages that contain Composition Functions, which are OCI container images invoke...46.0Knative FunctionsKnative Functions enables developers to create, build, and deploy stateless, event-driven functions as Knat...46.0segment Functions APIOperations for managing custom functions that transform or enrich data flowing through Segment.45.2Microsoft Excel Functions APIWorkbook function operations.43.2Supabase Functions APIDeploy and manage Edge Functions for serverless compute at the edge.42.3Braintrust Functions APIThe Functions API from Braintrust — 3 operation(s) for functions.42.2Nhost Serverless Functions APIDeploy JavaScript and TypeScript serverless functions as HTTP API endpoints for webhooks, event triggers, a...41.4Zoho Cliq Functions APIFunctions Module41.2Glia Functions APIGlia Functions is a serverless JavaScript runtime (workerd) inside the Glia platform, with REST endpoints f...41.0Amazon LambdaRun code without thinking about servers or clusters.40.8Azure Stream Analytics Functions APIThe Functions API from Azure Stream Analytics — 1 operation(s) for functions.40.8Braintrust Functions APIThe Functions API from Braintrust — 3 operation(s) for functions.40.1Digital Ocean Functions API[Serverless functions](https://docs.digitalocean.com/products/functions) are blocks of code that run on dem...39.9
Thin 15 Limited public surface area
ACI.dev functions APIThe functions API from ACI.dev — 3 operation(s) for functions.38.1Blaxel Functions APIThe Functions API from Blaxel — 3 operation(s) for functions.37.6Sieve Functions APILook up metadata for public and custom functions.37.5Power Query M Formula LanguageAPI and language reference for the M formula language used in Power Query for data transformation expressio...36.3Apache Geode Functions APIThe Functions API from Apache Geode — 2 operation(s) for functions.35.0PubNub FunctionsEdge serverless functions executed on PubNub's network in response to messages, presence events, or HTTP tr...34.1Modal Functions and Remote InvocationDecorate Python functions with @app.function to run them remotely on Modal's cloud. Invoke deployed functio...33.3Cognite Functions APIFunctions enables Python code to be hosted and executed in the cloud, on demand or by using a schedule. Exe...33.2Microsoft Excel (Advanced) Functions APIWorkbook function calls33.2OpenObserve Functions APIFunctions retrieval & management operations32.3Apache Pulsar Functions APIThe Functions API from Apache Pulsar — 3 operation(s) for functions.31.4Amazon AppSync Functions APIManage reusable pipeline resolver functions31.3CloudFront Functions APIThe Functions API from CloudFront — 2 operation(s) for functions.30.0Primitive Functions APIDeploy JavaScript handlers that run on inbound mail. Each function is a single ESM module whose default exp...28.0Integry Functions APIThe Functions API from Integry — 4 operation(s) for functions.27.8
Emerging 5 Early or largely undocumented
Moodle External Functions APIAllows developers to expose parametrized functions to external systems, forming the basis of Moodle's web s...22.1Fermyon Wasm FunctionsFermyon Wasm Functions is a multi-tenant, hosted, globally distributed engine for serverless functions runn...20.9LivePerson FunctionsServerless platform for building, deploying, and invoking custom functions that extend LivePerson conversat...18.8Amazon Web Services Functions APIThe Functions API from Amazon Web Services — 3 operation(s) for functions.16.7Descartes Labs Compute APIThe Compute service ran user-supplied Python code as containerised Functions against the imagery archive at...15.9

Score breakdown

Frequency
59.1
log-scaled weighted occurrences
Breadth
1.8
spread across providers
Quality lift
52.4
mean composite of providers using it
Cohesion
14.1
strength of nearest seed neighbor

Related tags

Serverless 26 co-occurrences Compute 13 co-occurrences Function-as-a-Service 5 co-occurrences Event-Driven 8 co-occurrences Namespaces 6 co-occurrences Views 6 co-occurrences Cloud Computing 6 co-occurrences Versions 6 co-occurrences

Where this tag comes from

Api tag62
Provider tag9
Openapi tag40
Openapi op tag178

Cohort brief

Auto-generated

The 65 providers in the APIs.io catalog tagged Functions, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
65
all scored
Mean Kin Score
43.3
+22.6 vs catalog 20.7
Mean Agent Readiness
26.2
+16.5 vs catalog 9.7
Spread
11.3–66.6
median 42.3 · σ 13.3
How the 65 split by band
Exemplar 1Strong 15Developing 27Thin 15Emerging 7Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 54.6 17.5 +37.1 65
Developer Ergonomics 43.2 17.9 +25.3 65
Operational Transparency 29 11.3 +17.7 65
Access Clarity 39.1 22.3 +16.8 65
Contract Governance 19.2 6.4 +12.8 65
Discoverability 67.7 60.4 +7.3 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
ArtifactThis cohortCatalogDifference
MCP server (any) 32% 16% +16
MCP server (first-party) 15% 7% +8
Agent Skills 0% 0% 0
OAuth scopes 18% 9% +9
Security 98% 88% +10
Arazzo workflows 20% 2% +18
Governance rules 63% 13% +50

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 Evervault 66.6
  2. 2 Swell 65.8
  3. 3 Modal 65.1
  4. 4 Factset 64.8
  5. 5 Amigo 63.8
  6. 6 Slack 62.3
  7. 7 Seekr 61.3
  8. 8 Shopify 60.4
  9. 9 Inngest 59.7
  10. 10 Microsoft Azure Functions 59.5
Top by Agent Readiness
  1. 1 Primitive 75.2
  2. 2 Factset 52.8
  3. 3 Microsoft Azure 49.6
  4. 4 Amigo 43.5
  5. 5 Webex 43.5
  6. 6 Oracle 41.9
  7. 7 Zavu 40.8
  8. 8 Shopify 40.6
  9. 9 Databricks 40.1
  10. 10 Bem 39.2
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.

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  • 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

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

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