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

Medplum BotsBots are TypeScript serverless functions (AWS Lambda-style) executed in response to FHIR Subscriptions, HTT...91.3

Strong 15 Solid coverage with minor gaps

Palo Alto Networks Serverless API{'$ref': 'desc/serverless/serverless.md'}63.7 IBM Cloud Code EngineRun containerized workloads without managing servers.62.6 IBM Cloud FunctionsRun lightweight code that executes application logic in a scalable way using an event-driven serverless com...62.6 Cloudflare Agents APIThe Cloudflare Agents SDK enables developers to build and deploy AI-powered agents that autonomously perfor...62.0 Cloudflare Containers APIThe Cloudflare Containers API allows developers to run container workloads on Cloudflare's global network, ...62.0 Cloudflare Workers for Platforms APIThe Cloudflare Workers for Platforms API enables SaaS providers to deploy and manage customer code at scale...62.0 Cloudflare Workflows APICloudflare Workflows enables developers to build durable, multi-step applications on Workers that automatic...62.0 AWS Fargate APIAWS Fargate is a serverless compute engine for containers that works with both Amazon ECS and Amazon EKS re...60.6 Shopify Functions APIShopify Functions allow developers to customize the backend logic that powers parts of Shopify. Functions a...60.4 Azure Functions Runtime APIThe Azure Functions host runtime provides HTTP endpoints for function invocation, admin operations, host st...59.5 Microsoft Azure Event Grid APIAzure Event Grid is a fully managed event routing service that enables developers to build event-driven arc...57.3 Microsoft Azure Functions APIAzure Functions is an event-driven serverless compute platform that enables developers to build and run app...57.3 Datadog Serverless APIThe Serverless API from Datadog — 2 operation(s) for serverless.57.1 Atlassian Forge App REST APIThe Atlassian Forge App REST API enables Forge apps to expose custom REST API endpoints for external system...54.7 Atlassian Forge Platform REST APIThe Atlassian Forge Platform REST API provides programmatic access to the Forge serverless cloud app develo...54.7

Developing 31 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...53.0 OCI Queue APIServerless messaging service for decoupling application components with reliable message delivery, supporti...53.0 AWS Lambda Extensions APIThe Lambda Extensions API enables you to create extensions that integrate with the Lambda execution environ...52.7 AWS Lambda Logs APIThe Lambda Logs API enables extensions to subscribe to log streams generated by the Lambda platform, functi...52.7 AWS Lambda Runtime APIThe Lambda Runtime API enables you to use custom runtimes to run functions in any programming language. The...52.7 AWS Lambda Telemetry APIThe Lambda Telemetry API lets you collect telemetry data directly from the Lambda execution environment. Ex...52.7 RunPod GraphQL APIThe RunPod GraphQL API provides programmatic access to Pods, templates, and Serverless endpoints via GraphQ...52.2 RunPod ServerlessRunPod Serverless provides pay-as-you-go inference endpoints with autoscaling workers, queue-based and load...52.2 Vast.ai REST APIThe Vast.ai REST API is the control plane for the GPU marketplace. It supports searching offers across host...52.2 Vast.ai Serverless APIThe Serverless API from Vast.ai — 9 operation(s) for serverless.52.2 Neon Data APIThe Neon Data API provides a secure, stateless HTTP interface to Neon Postgres databases, allowing develope...49.9 Neon Serverless DriverThe Neon Serverless Driver is a low-latency JavaScript and TypeScript driver that enables querying Neon Pos...49.9 PlayFab CloudScript APIPlayFab CloudScript runs server-authoritative game logic in PlayFab. Modern CloudScript using Azure Functio...49.8 Adobe I/O RuntimeA serverless computing platform built on Apache OpenWhisk that enables developers to deploy and execute cus...49.7 WeChat Cloud Hosting APIWeChat Cloud Hosting (微信云托管) is Tencent's cloud-native, ops-free container deployment service tightly integ...48.8 Amazon Redshift Serverless APIThe Amazon Redshift Serverless API for managing serverless data warehouse workgroups, namespaces, and capac...48.4 Amazon Redshift Serverless APIAPI for Amazon Redshift Serverless, which makes it easy to run analytics workloads without managing data wa...47.9 Red Hat OpenShift Serverless (Knative) APIOpenShift Serverless, based on Knative, enables deploying and managing event-driven serverless workloads on...47.8 Result BackendHosted application backend consumed through the first-party @resultdev/sdk client and administered with @re...47.1 Lumigo APIProgrammatic access to the Lumigo observability platform, authenticated with an API token (x-api-key header...46.6 Turso SQL over HTTP APIHTTP API for executing SQL statements directly against a Turso database instance at the edge. Supports quer...46.5 Knative FunctionsKnative Functions enables developers to create, build, and deploy stateless, event-driven functions as Knat...46.0 Hugging Face Inference APIServerless inference API for running predictions against thousands of models hosted on the Hugging Face Hub...45.3 Unity Cloud Code APIServer-authoritative JavaScript scripts and C# modules executed in Unity's managed runtime. Bill is per-com...45.0 IronWorkerIronWorker is a container-based, massively parallel, multi-language work-on-demand platform. The REST API l...44.4 Novita AI GPU APIOn-demand GPU instance management and templates plus serverless GPU endpoints. Create, start, stop, and del...44.2 MongoDB Atlas App Services Admin APIAdmin API for MongoDB Atlas App Services (formerly Realm), used to manage applications, services, functions...41.6 Nhost Serverless Functions APIDeploy JavaScript and TypeScript serverless functions as HTTP API endpoints for webhooks, event triggers, a...41.4 Glia Functions APIGlia Functions is a serverless JavaScript runtime (workerd) inside the Glia platform, with REST endpoints f...41.0 Amazon LambdaRun code without thinking about servers or clusters.40.8 Momento Cache HTTP APIRegion-scoped HTTP API for reading, writing, and deleting cache items in a Momento cache without a gRPC cli...39.5

Thin 15 Limited public surface area

Zoho CatalystThe Zoho Catalyst API provides programmatic access to serverless application development features, includin...38.5 Spocket MCP ServerHosted MCP server (Streamable HTTP) with ~20 tools for deploying and managing always-on apps. Uses OAuth 2....38.3 Spocket Platform REST APIWhite-label reseller/provisioning REST API for hosting apps from a customer backend. OAuth2 client-credenti...38.3 W&B Serverless Inference (CoreWeave)OpenAI-compatible inference API for hosted open-source foundation models, running on CoreWeave GPU infrastr...36.7 PubNub FunctionsEdge serverless functions executed on PubNub's network in response to messages, presence events, or HTTP tr...34.1 Modal Functions and Remote InvocationDecorate Python functions with @app.function to run them remotely on Modal's cloud. Invoke deployed functio...33.3 Tenderly Web3 Actions APIDeploy and manage serverless JavaScript/TypeScript functions triggered by on-chain or off-chain events, ena...32.9 AWS Lambda APIAmazon Web Services Lambda API for creating, managing, invoking, and monitoring serverless functions. Core ...32.7 Knative APIKnative provides Kubernetes-based platform APIs for deploying and scaling event-driven serverless workloads...32.7 QuickNode FunctionsServerless on-chain logic runtime for executing custom code triggered by Streams or HTTP.32.4 Lancaster Library Alma Webhook HandlerOpen-source AWS serverless application maintained by Lancaster University Library that listens for Ex Libri...32.3 PlanetScale Serverless Driver for JavaScriptThe PlanetScale Serverless Driver for JavaScript is a Fetch API-compatible database driver designed for ser...31.7 Upstash Developer APIManagement API for creating and administering Upstash Redis, Kafka, and Vector databases, teams, and accoun...30.7 Upstash Redis REST APIPer-database REST API for executing Redis commands over HTTPS from edge and serverless runtimes. Uses Beare...30.7 Fauna GraphQL APIThe Fauna GraphQL API allows developers to interact with their Fauna databases using standard GraphQL queri...30.4

Emerging 12 Early or largely undocumented

DBOS CloudDBOS Cloud is the managed, serverless hosting platform for DBOS workflows, queues, and scheduled jobs. The ...25.8 Nebius Token FactoryNebius Token Factory is the AI model inference platform offering OpenAI-compatible endpoints for serving op...25.6 Apache Camel K Operator APIThe Apache Camel K Operator exposes a Kubernetes Custom Resource API for deploying and managing Camel integ...25.5 Apache Camel Quarkus APIApache Camel Quarkus provides native compilation and fast startup of Camel routes on Quarkus, enabling serv...25.5 Alibaba Cloud APIAlibaba Cloud provides a comprehensive API ecosystem covering all major cloud services including Elastic Co...24.9 8base GraphQL APIThe 8base GraphQL API provides auto-generated queries, mutations, and subscriptions for every data table in...22.1 Fermyon Wasm FunctionsFermyon Wasm Functions is a multi-tenant, hosted, globally distributed engine for serverless functions runn...20.9 Fusio Worker APIThe Fusio Worker API enables executing API action logic in multiple programming languages by forwarding req...20.2 LivePerson FunctionsServerless platform for building, deploying, and invoking custom functions that extend LivePerson conversat...18.8 AWS EventBridgeAWS serverless event router. "EventBridge is a serverless service that uses events to connect application c...14.9 QuirrelQuirrel provides a JavaScript and TypeScript SDK for enqueuing, scheduling, retrying, and managing backgrou...12.7 SST FrameworkThe SST framework is an open source CLI and component library distributed via npm (`sst`) and as a Go-based...11.3

Minimal 1 Almost no public developer surface

Serverless WorkflowServerless Workflow is a vendor-neutral specification for defining cloud-native serverless orchestration wo...9.1

Score breakdown

Frequency

64.0

log-scaled weighted occurrences

Breadth

4.8

spread across providers

Quality lift

48.2

mean composite of providers using it

Cohesion

11.9

strength of nearest seed neighbor

Where this tag comes from

Provider tag141

Api tag75

Openapi tag2

Openapi op tag12

Cohort brief

Auto-generated

The 174 providers in the APIs.io catalog tagged Serverless, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

174

all scored

Mean Kin Score

39.9

+19.2 vs catalog 20.7

Mean Agent Readiness

21.2

+11.5 vs catalog 9.7

Spread

4.3–91.3

median 41.6 · σ 15

How the 174 split by band

Exemplar 2Strong 25Developing 75Thin 41Emerging 20Minimal 11

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	46.5	17.5	+29	174
Developer Ergonomics	39.8	17.9	+21.9	174
Access Clarity	40.2	22.3	+17.9	174
Operational Transparency	27	11.3	+15.7	174
Discoverability	69.3	60.4	+8.9	174
Contract Governance	14.2	6.4	+7.8	174

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)	29%	16%	+13
MCP server (first-party)	12%	7%	+5
Agent Skills	0%	0%	0
OAuth scopes	14%	9%	+5
Security	97%	88%	+9
Arazzo workflows	14%	2%	+12
Governance rules	55%	13%	+42

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 Medplum 91.3
2 fal 69.7
3 Amazon API Gateway 65.8
4 Modal 65.1
5 Palo Alto Networks 63.7
6 IBM 62.6
7 Cloudflare 62
8 Freestyle 61.7
9 Amazon Web Services (AWS) 60.6
10 Koyeb 60.5

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Tools for tags

7 MCP tools reach this

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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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This tag

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All tags

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As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/serverless"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/serverless/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Serverless

Providers using this tag (174)

APIs with this tag (75)