Providers using this tag (90)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 5 Solid coverage with minor gaps
Developing 16 Usable, with meaningful gaps to close
Thin 21 Limited public surface area
Emerging 46 Early or largely undocumented
PumaNitricApache CalciteRestateCisco Nexus DashboardApache TinkerPopBloomberg Professional ServiceTypeSpecWhistleApache SkyWalkingSpinMock Service WorkerRayScalaSparx Enterprise ArchitectAPI Style GuidesTinyproxyDBpediaVegetaRESTful ServicesService Mesh Interface (SMI)Httpstat.usJavaAngularAngular 14Angular 15Angular 17Angular 18Angular 20RESTKamalAPI SpecificationsStarRocksJakarta EEStreamingXhConnect-RPCOpenJS FoundationExpressRESTfulRefact.aicURLOracle Database 11gREST APIREST ServicesPython Standard Library and Popular
Minimal 2 Almost no public developer surface
APIs with this tag (79)
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
Tradier Streaming APIThe Tradier Streaming API delivers real-time market and account events over HTTP and WebSocket. Quote, trad...Clay HTTP API EnrichmentGeneric HTTP request column inside Clay Tables that lets users call any external REST or GraphQL endpoint w...Amazon API Gateway HTTP APILower latency and lower cost alternative to REST APIs with essential features for building HTTP-based APIs.
Developing 14 Usable, with meaningful gaps to close
Optus SMS Suite HTTPS APILegacy GET-based HTTPS interface for SMS integration, covering message sending, delivery receipts, and inbo...ZenRows Residential ProxiesHTTP and SOCKS5 residential proxy network with 55M+ IPs across 190+ countries, username/password authentica...Neon Data APIThe Neon Data API provides a secure, stateless HTTP interface to Neon Postgres databases, allowing develope...ZippyKid http: APIThe http: API from ZippyKid — 1 operation(s) for http:.Tableau Web Data ConnectorThe Tableau Web Data Connector (WDC) provides an SDK for building connectors to any data accessible over HT...Turso SQL over HTTP APIHTTP API for executing SQL statements directly against a Turso database instance at the edge. Supports quer...Neo4j Query APIThe Neo4j Query API enables the execution of Cypher statements against a Neo4j server through HTTP requests...Pusher Channels APIPub/sub channels over WebSocket (client) and HTTP (server publish). Public, private, and presence channels ...ClickHouse HTTP InterfaceHTTP interface (default port 8123, HTTPS 8443) for executing SQL queries against ClickHouse. Supports SELEC...HTTP Status Code CheckerCheck the live status of up to 10 URLs at once and detect redirects instantly. Give this API a list of up t...PartyKit Deployed Party (HTTP / WebSocket)Public HTTP and WebSocket interface for a deployed PartyKit project at project.user.partykit.dev. Each part...Traefik Labs HTTP APIEndpoints for inspecting HTTP routers, services, and middlewares.AT Protocol XRPC APIXRPC is the AT Protocol's HTTP-based remote procedure call layer. All protocol interactions — querying reco...Momento Cache HTTP APIRegion-scoped HTTP API for reading, writing, and deleting cache items in a Momento cache without a gRPC cli...
Thin 19 Limited public surface area
etcd v2 HTTP APIThe original etcd v2 API exposed a RESTful HTTP interface for key-value operations using a hierarchical dir...CloudEvents HTTP Protocol BindingThe HTTP protocol binding defines how CloudEvents are transported using HTTP, including structured content ...Spring Boot REST APIRESTful web services built with Spring Boot using Spring MVC or Spring WebFlux. Supports JSON, XML, and hyp...CrateDB HTTP SQL EndpointCrateDB's native developer interface: a JSON-over-HTTP SQL endpoint. Clients POST a JSON body ({"stmt": ".....Akka HTTPAkka HTTP is a full HTTP stack (client and server-side) built on Akka actors and streams. It provides a rou...Materialize HTTP APISession-less HTTP API for executing SQL statements against a Materialize region. Authenticates with HTTP Ba...QuestDB ILP HTTP IngestionInflux Line Protocol over HTTP /write endpoint for ingestion clients that prefer HTTP (TLS, auth and ack se...MATLAB HTTP InterfaceRESTful web services support for making HTTP requests from MATLAB.NGINX Plus APINGINX Plus provides an advanced REST API for runtime configuration and statistics of upstream server groups...Urbit Ship HTTP API (Eyre)The HTTP interface of every Urbit ship, served by the Eyre kernel vane. Clients authenticate by POSTing the...NGINX HTTP APIThe HTTP API from NGINX — 1 operation(s) for http.Syndica Solana RPC (HTTP) APIHigh-performance Solana JSON-RPC HTTP endpoints served from a fault-tolerant elastic-node architecture acro...Spring Web MVC APIWeb MVC framework for building web applications and RESTful services with Spring Boot 3. Includes controlle...Vert.x WebA set of building blocks for building web applications and RESTful HTTP microservices with Vert.x. Provides...Spring MVC Web FrameworkModel-View-Controller web framework built on the Servlet API. Supports annotation-driven controllers, conte...W&B Import API (HTTP)The wandb client uses an HTTP file/import endpoint to push run metrics, system stats, and artifacts. Genera...Pinata Dedicated GatewayDedicated IPFS HTTP gateway endpoint per account for content retrieval with custom subdomain, access contro...Rowy WebhooksRowy's primary inbound API surface. Each table can generate an HTTPS webhook endpoint running on Google Clo...Apache CXFCXF provides Java APIs for building SOAP (JAX-WS) and REST (JAX-RS) web services with WSDL-first and code-f...
Emerging 43 Early or largely undocumented
Nitric API ResourceSDK resource for declaring HTTP APIs and routes in code. Nitric provisions the API gateway (e.g. AWS API Ga...Apache Calcite Avatica APIApache Avatica is a framework for building database drivers derived from Apache Calcite. It provides a JSON...Restate Ingress APIThe Restate Ingress API is the HTTP data-plane for invoking services, virtual objects, and workflows runnin...Cisco NX-OS RESTCONF APIHTTP-based protocol for configuring YANG-defined data on Nexus switches supporting XML and JSON payload enc...Apache TinkerPop Gremlin Server APIThe Gremlin Server provides WebSocket and HTTP endpoints for submitting Gremlin traversals to a remote grap...Bloomberg HTTP APIHTTP wrapper making the Bloomberg Open API available via HTTP and WebSockets, allowing clients to access re...TypeSpec HTTP LibraryThe TypeSpec HTTP library provides decorators and types for describing HTTP REST APIs including routes, ope...WhistleWhistle is a cross-platform HTTP, HTTPS, HTTP/2, WebSocket, and TCP debugging proxy tool. It lets developer...Apache SkyWalking REST APIThe SkyWalking HTTP REST API exposes endpoints on port 12800 for health checks, PromQL-compatible metrics q...Spin HTTP Trigger APIThe Spin HTTP Trigger API handles incoming HTTP requests and routes them to the appropriate Spin component....Mock Service WorkerMock Service Worker (MSW) is an open-source library for mocking REST, GraphQL, WebSocket, and Server-Sent E...Ray Serve HTTP APIHTTP interface for invoking models and applications deployed via Ray Serve. Each deployed application is ex...Akka APIAkka is a toolkit for building highly concurrent, distributed, and fault-tolerant applications on the JVM u...Akka HTTP APIAkka HTTP provides a full server- and client-side HTTP stack built on Akka Streams. Offers high-throughput,...http4s APIhttp4s is a typeful, functional, streaming HTTP library for Scala built on cats-effect and fs2. Provides se...Pro Cloud Server APIHTTP-based API provided by the Sparx Systems Pro Cloud Server for remote access to Enterprise Architect rep...IETF HTTPAPI Working Group Drafts and RFCsThe IETF httpapi Working Group is producing the cross-vendor vocabulary that style guides increasingly cite...TinyproxyTinyproxy is a lightweight HTTP/HTTPS proxy daemon for POSIX operating systems with minimal system resource...DBpedia Linked DataHTTP Linked Data access to DBpedia resources via content negotiation. Dereference any DBpedia entity URI (h...Vegeta Load Testing ToolVegeta is an open source HTTP load testing tool and library written in Go for generating constant request r...SMI Traffic SpecsTraffic Specs describes a set of resources that allow users to specify how their traffic looks. It is used ...Java Networking APIAPIs for networking applications including HTTP, sockets, and URLs.Angular HTTP Client APIAngular HTTP client API for making REST requests with functional interceptors, progress events, typed respo...Angular 14 HTTP Client APIAngular 14 HTTP client for making REST requests with built-in support for interceptors, progress events, an...Angular 15 HTTP Client APIAngular 15 HTTP client with functional interceptors support as a lighter alternative to class-based interce...Angular 17 HTTP Client APIAngular 17 HTTP client with functional interceptors and improved SSR hydration support.Angular 18 HTTP Client APIAngular 18 HTTP client with functional interceptors and improved signal-based response handling.Angular 20 HTTP Client APIAngular 20 HTTP client with functional interceptors and signal-based resource APIs for reactive data fetching.HTTP SemanticsRFC 9110 defines the semantics of the Hypertext Transfer Protocol (HTTP), the foundation of the World Wide ...REST Architectural StyleRepresentational State Transfer (REST) is an architectural style originally defined by Roy Fielding. REST p...Kamal ProxyKamal Proxy is a minimal HTTP reverse proxy written in Go that powers the zero-downtime deploy switchover b...OpenAPI Specification (OAS)The OpenAPI Specification (formerly Swagger) is the dominant industry standard for describing HTTP-based RE...StarRocks FE HTTP APIThe Frontend (FE) HTTP server exposes REST endpoints for cluster administration, metrics, query profiling, ...StarRocks Stream Load HTTP APIStream Load is a synchronous HTTP-based ingestion API. Clients PUT a CSV or JSON payload to /api/{db}/{tabl...Jakarta ServletJakarta Servlet is a server-side Java API for handling HTTP requests and generating dynamic responses. It p...Server-Sent Events (SSE)One-directional HTTP-based streaming from server to client using the `text/event-stream` media type. Define...Xh CLIxh is a friendly and fast command-line HTTP client written in Rust. It reimplements HTTPie's design with im...ExpressExpress is a fast, unopinionated, minimalist web framework for Node.js used for building HTTP APIs and web ...RFC 9110 - HTTP SemanticsThe IETF standard defining HTTP semantics: methods, status codes, header fields, content negotiation, authe...Refact Agent Engine APILocal HTTP/LSP API exposed by the Rust `refact-lsp` engine that runs inside the user's IDE or as a standalo...cURL Command Line ToolThe curl command-line tool transfers data to or from a server using URL syntax, supporting protocols includ...Oracle Database 11g REST Data ServicesRESTful web services for Oracle Database.RequestsHTTP library for Python - elegant and simple HTTP requests.
Score breakdown
Frequency
54.1
log-scaled weighted occurrences
Breadth
2.5
spread across providers
Quality lift
33.9
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor
Related tags
Web Services 11 co-occurrences
Framework 12 co-occurrences
Decorators 7 co-occurrences
Interceptors 7 co-occurrences
Dependency Injection 7 co-occurrences
Validation 11 co-occurrences
Typed Forms 6 co-occurrences
Reactive Forms 6 co-occurrences
Where this tag comes from
Api tag79
Provider tag22
Openapi tag3
Openapi op tag8
Cohort brief
Auto-generatedThe 90 providers in the APIs.io catalog tagged HTTP, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
90
all scored
Mean Kin Score
28.4
+7.7 vs catalog 20.7
Mean Agent Readiness
12.5
+2.8 vs catalog 9.7
Spread
6.8–65.8
median 25 · σ 13.8
How the 90 split by band
Exemplar 0Strong 5Developing 16Thin 21Emerging 46Minimal 2
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 29.3 | 17.5 | +11.8 | 90 |
| Operational Transparency | 21.8 | 11.3 | +10.5 | 90 |
| Developer Ergonomics | 25.7 | 17.9 | +7.8 | 90 |
| Discoverability | 67.8 | 60.4 | +7.4 | 90 |
| Contract Governance | 11.8 | 6.4 | +5.4 | 90 |
| Access Clarity | 24 | 22.3 | +1.7 | 90 |
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) | 14% | 16% | -2 |
| MCP server (first-party) | 6% | 7% | -1 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 3% | 9% | -6 |
| Security | 96% | 88% | +8 |
| Arazzo workflows | 2% | 2% | 0 |
| Governance rules | 51% | 13% | +38 |
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 Amazon API Gateway 65.8
- 2 Postman 64.5
- 3 Tradier 61.4
- 4 Clay 61.3
- 5 Amazon API Gateway 54.5
- 6 Optus 54
- 7 ZenRows 50.4
- 8 Neon 49.9
- 9 ZippyKid 49.7
- 10 Tableau 46.6
All 90 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.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/http"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/http"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/http/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.