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 27 Complete, well-documented, and agent-ready

Salesforce Streaming APIThe Salesforce Streaming API uses a publish-subscribe model based on Bayeux/CometD to push near-real-time e...91.0 OpenAI Realtime APIThe Realtime API from OpenAI — 9 operation(s) for realtime.84.8 Cloudflare Pipelines APIThe Cloudflare Pipelines API enables developers to ingest events via HTTP endpoints or Worker bindings, tra...80.6 RudderStack Event Stream APIThe RudderStack Event Stream API manages real-time event-stream pipelines — sources, destinations, connecti...78.5 Mux Streaming APIAPIs for streaming video content via HLS and MP4 with customizable playback options.77.1 Polygon WebSocket APIReal-time streaming WebSocket clusters per asset class (stocks/options/indices/forex/crypto). Subscribers a...75.8 ThousandEyes Streaming APIConfigure data streaming75.0 OPERA Cloud Business Events Streaming APIPush delivery of OPERA Cloud Business Events as a GraphQL subscription over WebSocket. Each event carries t...73.4 Zendesk Real-Time Chat APIThe Zendesk Real-Time Chat API provides streaming access to real-time chat metrics and activity data. It en...72.2 Service Cloud Pub/Sub APIThe gRPC event API. Publish and subscribe to platform events and Change Data Capture events (including /dat...71.9 Service Cloud Streaming APICometD/Bayeux long-polling surface for PushTopic, generic streaming and platform event subscriptions. The l...71.9 0xArchive WebSocket APIReal-time subscriptions for supported Hyperliquid channels and historical replay for Hyperliquid and Lighte...71.6 Regal Reporting WebhooksRegal publishes 40+ reporting webhook event types covering agent activity, call lifecycle (placed, complete...71.6 Cloudera Cruise Control REST APICruise Control on CDP exposes REST endpoints for rebalancing Kafka clusters, monitoring partition load, and...70.3 Streams Replication Manager Service REST APIStreams Replication Manager (SRM) exposes a REST API for inspecting cross-cluster Kafka replication topolog...70.3 Apple Music APIThe Apple Music API is Apple's REST surface for Apple Music catalog, library, ratings, playlists, recommend...69.7 Edge Impulse Remote Management APIA two-way WebSocket protocol between edge devices and Edge Impulse Studio, used to drive a connected device...69.4 Adobe Analytics Livestream APIThe Livestream API is a reporting feature in Adobe Analytics that allows clients to receive traffic data pr...69.0 Twelve Data WebSocket Streaming APIReal-time price streaming over a persistent, bidirectional WebSocket at wss://ws.twelvedata.com/v1/quotes/p...69.0 fal Realtime APIWebSocket-based realtime inference for ultra-low latency interactive generative experiences such as LCM/SDX...68.6 fal Streaming APIHTTP streaming endpoint (`/{model-id}/stream`) that emits progressive partial outputs as a model runs — use...68.6 fal Streaming APIServer-sent streaming of incremental model output.68.6 Gemini WebSocket APIThe production Gemini WebSocket API at wss://ws.gemini.com: request/response methods, market data streams (...67.5 Power BI Push Datasets APIThe Push Datasets API enables real-time data streaming by allowing applications to create push datasets and...67.5 Cumulocity MQTT Service APIStandards-compliant, multi-tenant MQTT broker for application-level messaging that does not need Cumulocity...67.0 Canvas Live EventsCanvas Live Events stream lifecycle events emitted by Canvas (course, enrollment, assignment, submission, g...66.9 Kensho Scribe Real Time APIReal-time streaming transcription over a WebSocket at wss://scribe.kensho.com/ws. Clients send an Authentic...66.9

Strong 37 Solid coverage with minor gaps

F5 Telemetry Streaming APIDeclarative API for aggregating, normalizing, and forwarding BIG-IP statistics and events to third-party an...66.1 OCI Streaming APIManaged messaging service for ingesting and consuming high-volume data streams in real time, compatible wit...66.0 8x8 Event Streaming APIReal-time contact center event stream delivered over the Apache Pulsar WebSocket interface. Clients connect...65.3 Red5 Core SDKThe Red5 Core SDK is a native client library for building real-time streaming applications on Linux, Window...65.1 Red5 Pro Android Streaming SDKThe Red5 Pro Android Streaming SDK is a native Android library for integrating real-time live streaming pub...65.1 Red5 Pro iOS Streaming SDKThe Red5 Pro iOS Streaming SDK is a native iOS library for integrating real-time live streaming publish and...65.1 Red5 Pro WebRTC SDKThe Red5 Pro WebRTC SDK is a JavaScript library for integrating low-latency live streaming publish and subs...65.1 Crypto.com Exchange WebSocket API v1WebSocket API for the Crypto.com Exchange, split into a Market Data stream (public channels for book, ticke...65.0 Shodan Streaming APIThe Streaming API from Shodan — 5 operation(s) for streaming.64.4 iTwin Visualization APIServer-side visualization service for rendering iTwins in web browsers without client compute. Supports int...63.8 Rhombus Console WebSocket APIReal-time organization change events delivered over a STOMP 1.2 session framed on a secure WebSocket. Clien...63.4 aedifion MQTT APIMQTT 3.1.1 broker interface at mqtt.aedifion.io for streaming building telemetry into and out of the aedifi...62.5 PyannoteAI Streaming APIThe Streaming API from PyannoteAI — 2 operation(s) for streaming.61.5 Text Generation Inference (TGI)High-performance inference server for large language models with continuous batching, token streaming, tens...60.0 Ant Media Server REST APIThe Ant Media Server REST API provides programmatic access to all streaming server management functions inc...59.8 ThetaData Streaming WebSocket APIJSON WebSocket streaming of US stock trade/quote, options trade/quote, and index price streams, served loca...59.8 Clearbit Streaming Enrichment APIThe same enrichment contract served from a streaming host that holds the connection open for up to 60 secon...59.4 Runloop Streaming APIThe streaming API from Runloop — 2 operation(s) for streaming.59.0 Cloud Foundry LoggregatorLoggregator is Cloud Foundry's distributed log and metric pipeline that aggregates application logs, platfo...58.8 Prezent Streaming APIOpen a Server-Sent Events stream to receive real-time progress events as Prezent generates a presentation. ...58.6 Validic Streaming APIServer-Sent Events stream of organization-wide health events.58.4 FlightAware FirehoseFirehose is FlightAware's real-time streaming feed of global flight data, delivering ADS-B, radar, and ATC-...58.2 MAX Exchange WebSocket APIReal-time streaming service for MAX Exchange. Public channels cover order book (book), trade, ticker, kline...58.2 Streaming APIPush notification API using Bayeux protocol to receive near real-time updates when data changes in Salesfor...58.1 Aptos Transaction Stream APIgRPC streaming API that delivers historical and real-time transaction data from the Aptos blockchain. Used ...57.8 EODHD WebSockets Real-Time APIStreams real-time trade and quote updates over WebSockets for US stocks, forex, and cryptocurrencies, allow...57.4 Amplitude Webhooks and Cohort SyncThe Webhooks Streaming destination forwards Amplitude event and user payloads to a customer-configured HTTP...57.3 daglo Realtime Streaming STT (gRPC)Bidirectional gRPC streaming speech recognition served from apis.daglo.ai. The provider publishes the proto...57.3 Sift gRPC APIThe gRPC contract that is Sift's primary API — 51 services and 330 RPCs defined across 66 proto3 files publ...56.9 Fabric Origin Video APIThe Video API generates playable links for trailers and other video assets using video identifiers returned...56.8 Origin Insights MCP ServerA hosted Model Context Protocol server over Origin Insights streaming market intelligence — availability, d...56.8 Axway Amplify StreamsAxway Amplify Streams provides a real-time event streaming API platform enabling publishers to push data up...56.1 Apple Music APIAccess Apple Music catalog, user library, and playback controls.55.4 emnify Data StreamerStream event and usage data to outbound destinations (AWS S3, AWS Kinesis, REST/webhook, Datadog, Salesforc...55.1 BuiltWith Live Feed APIReal-time WebSocket feed of technology detections as they happen across the web.54.9 Decart Realtime APIThe realtime video transformation surface. A client opens a WebRTC session (LiveKit-managed transport) agai...54.8 Wowza Streaming Engine Java APINative Java API for extending and customizing the Wowza Streaming Engine media server via server listeners,...54.4

Developing 109 Usable, with meaningful gaps to close

Factiva Streams APIReal-time streaming API that delivers continuous feeds of news content matching specified criteria and filt...54.2 Webz.io Firehose APIREST-delivered curated firehose of enriched open-web posts. Preconfigured per-customer feeds via `/firehose...54.0 Trigger.dev Realtime APIThe Trigger.dev Realtime API streams live run state and typed stream data to backend and frontend clients. ...53.7 Lukka Market Data Streaming APIWebSocket streaming for executed trades, Level-1 order-book quotes, Lukka Prime pricing, Lukka Index valuat...53.4 Kaiko StreamReal-time crypto market data delivered over gRPC server-streaming. Feeds include tick-level trades, top-of-...52.4 Tradier Streaming APIThe Tradier Streaming API delivers real-time market and account events over HTTP and WebSocket. Quote, trad...52.4 Tradier Streaming APIThe Streaming API from Tradier — 2 operation(s) for streaming.52.4 Mercedes-Benz Fleet APIThe Mercedes-Benz Fleet API integrates vehicle data into fleet management systems without retrofit hardware...51.9 Toolhouse Workers APIThe Toolhouse Workers API (historically the "Agents API") enables HTTP execution of any deployed Toolhouse ...51.8 Lambda Inference APILambda Inference API is an OpenAI-compatible REST gateway at https://api.lambda.ai/v1 that serves hosted op...51.7 Convai Streaming APIThe Streaming API from Convai — 1 operation(s) for streaming.51.6 Allo-Media Stream API for HumansReal-time transcription of live human-to-human conversations over a WebSocket (Phoenix Channels). A client ...50.9 Maxar Technologies Streaming 3D APIStreams 3D surface models derived from Maxar's stereo and tri-stereo collections for visualization and 3D a...50.9 Maxar Technologies Streaming Imagery APIOGC-compliant WFS / WMS / WMTS streaming services for delivering online imagery strips into web mapping cli...50.9 Maxar Vivid Basemap APIVivid is Maxar's cloud-free, color-balanced basemap product — a global mosaic refreshed from the WorldView ...50.9 Sanity Listen APIThe Sanity Listen API provides real-time event streaming via Server-Sent Events (SSE) for content changes i...50.8 Gemini Live APILow-latency real-time voice and video interactions with Gemini using WebSockets for streaming multimodal in...50.7 Vertex AI Gemini Live APIEnterprise real-time multimodal streaming API on Vertex AI for building low-latency voice and video AI agents.50.7 Amberdata WebSocket Streaming APILow-latency real-time WebSocket streaming over a JSON-RPC 2.0 subscribe interface for spot trades and price...50.6 Gemini Live APILow-latency bidirectional streaming API enabling real-time voice and video interactions with Gemini models ...50.1 INRIX TPEG ConnectDelivers INRIX traffic, incident, parking, weather and fuel content in TISA TPEG format over HTTP POST sess...50.1 DeepL Voice APIThe DeepL Voice API provides real-time speech transcription and translation. A POST to /v3/voice/realtime i...50.0 Binance.US WebSocket StreamsBinance.US WebSocket Streams deliver real-time market data and account events over persistent WebSocket con...49.9 Benzinga TCP Streaming ServiceLow-latency persistent TCP stream (tcp-v1.benzinga.io port 11337, optional TLS) delivering real-time news, ...49.8 Benzinga WebSocket Streaming APIReal-time WebSocket streams over wss://api.benzinga.com for news, earnings, analyst ratings, consensus rati...49.8 Sygnum Market Data APIMarket data service exposed as REST plus a streaming WebSocket channel, so partners can stream prices and m...49.8 Deutsche Börse Cloud Stream Market Data APICloud-delivered real-time market data streaming over WebSocket (host md.deutsche-boerse.com) with Protocol ...49.4 Blockchain.com Exchange WebSocket APIReal-time WebSocket gateway for the Blockchain.com Exchange. Anonymous channels stream heartbeat, L2/L3 ord...49.3 Blockchain.com Explorer WebSocket APILow-latency streaming socket channel providing notifications on new bitcoin blocks, unconfirmed transaction...49.3 CryptoCompare Streaming WebSocketSingle secure WebSocket endpoint multiplexing every subscription via tilde-delimited subscription strings (...49.3 LSEG WebSocket APIStandards-based WebSocket API for real-time pricing streaming using JSON message formats. Connects to Real-...49.3 Real-Time Java SDKJava SDK encompassing the Enterprise Message API (EMA) and Enterprise Transport API (ETA) for building high...49.3 Tensor WebSocket APISubscription-based realtime stream of Tensor marketplace events. Channels include `newTransaction` (every c...49.0 Itron Consumer Energy Stream (CES) APIItron describes Consumer Energy Stream as a data product that allows electricity meter consumption data "fr...48.8 Amazon Managed Service for Apache Flink APIAmazon Managed Service for Apache Flink (formerly Amazon Kinesis Data Analytics for Apache Flink) is a full...48.7 Speechmatics Realtime Transcription APIWebSocket API for low-latency real-time streaming transcription supporting live audio input, speaker diariz...48.6 Ostium Builder APIPublic Builder API and TypeScript/Python SDK surface for reading Ostium market data (pairs, prices, OHLC ca...48.5 May Mobility Fleet Realtime APIA WebSocket streaming API that delivers live May Mobility vehicle data in two modes. Telemetry mode streams...48.1 Databento Live Streaming APILow-latency live market data delivered over a raw TCP binary streaming protocol using Databento Binary Enco...47.8 Sanas Stream APIReal-time speech-to-speech translation over a single persistent WebSocket connection, supporting consecutiv...47.8 Ally Invest Streaming Market Data APIThe Ally Invest Streaming API delivers real-time market quotes via a persistent HTTP streaming connection. ...47.0 Telia ACE Audio Stream Forwarding APIBidirectional streaming gRPC service over HTTP/2 that forwards copies of the audio streams in Telia ACE con...46.8 Dell iDRAC Telemetry Streaming APIServer-Sent Events (SSE) streaming API for real-time telemetry data from Dell PowerEdge servers via iDRAC. ...46.4 Triton One Fumarole Persistent StreamsFumarole — persistent Yellowstone streams with gap-free reconnect and 4-day server-side cache. Built for co...46.4 Triton One Whirligig WebSocketsWhirligig — Triton's enhanced WebSocket layer over Solana RPC. Adds the missing transactionSubscribe stream...46.4 Triton One Yellowstone gRPC (Dragon's Mouth)Dragon's Mouth — Triton's high-performance Solana streaming gRPC service. Subscribe to slots, blocks, trans...46.4 HeyGen Streaming APIStreaming avatar session lifecycle and task endpoints.46.3 Moore Threads AIBook Streaming Voice Conversion APIA WebSocket voice-conversion service at /api/v1/streaming_vc that re-timbres a live 16 kHz 16-bit mono PCM ...46.3 Moore Threads AIBook Text-to-Speech APIHTTP and WebSocket speech synthesis. A non-streaming POST /api/v1/tts/generate returns a complete wav/mp3 f...46.3 tastytrade Account Streamer APIWebSocket-based account streaming that delivers real-time notifications for order fills, position changes, ...46.2 tastytrade DXLink Market Data Streaming APIReal-time market data streaming via DXLink, a WebSocket-based protocol backed by dxFeed. Clients fetch a qu...46.2 FOREX.com Pricing APIAccess real-time and historical price data for forex and CFD markets. Real-time bid/ask/offer prices are de...46.1 Indeed Real-time APIStream real-time server-sent events (SSE) to enable front-end applications to update instantly, supporting ...46.0 Bazel Build Event ProtocolThe Build Event Protocol (BEP) is Bazel's structured stream of build events — target configured, progress, ...45.9 OpenSea Stream APIReal-time WebSocket event streaming for NFT marketplace activity per collection, including item listed, ite...45.8 Refinitiv Real-Time SDK - C/C++Open source C/C++ SDK for the Refinitiv Real-Time platform, providing the Enterprise Message API (EMA) and ...45.8 Refinitiv Real-Time SDK - JavaOpen source Java SDK for the Refinitiv Real-Time platform, containing the Enterprise Message API (EMA) for ...45.8 Refinitiv Real-Time WebSocket APILow-latency streaming API for real-time market data using WebSocket connections. It supports the Open Messa...45.8 Refinitiv Streaming APIService discovery for streaming connections to real-time pricing and data services.45.8 Apache Kafka Messaging APIThe core Kafka messaging protocol for producing and consuming records to/from topics using the native Kafka...45.4 Juniper Mist WebSocket Streaming APIMist exposes a WebSocket channel for real-time event subscriptions including device events, location update...45.2 AT Protocol Firehose (Event Stream)Public WebSocket event stream providing real-time access to all public activity on the AT Protocol network,...45.0 AT Protocol Relay & FirehoseThe Relay aggregates the com.atproto.sync.subscribeRepos firehose across PDS hosts and re-broadcasts the co...45.0 Blockdaemon Chain Watch Events APIReal-time push-based on-chain event streaming for institutional wallets and finance systems. Configure Targ...44.8 Bluesky JetstreamJetstream is a simplified JSON event stream for the AT Protocol that converts CBOR-encoded MST blocks from ...44.8 Morningstar Streaming APIWebSocket-based real-time market data streaming with Level 1 quote and Level 2 market-by-price subscription...44.5 Brocade SANnav Northbound Streaming APIThe Brocade SANnav Northbound Streaming API enables real-time streaming of SAN telemetry and event data fro...44.4 SPAN eBus MQTT APIPublish/subscribe streaming API hosted on SPAN Panel using the Electrification Bus (eBus) integration frame...44.4 Companies House Streaming APIThe Companies House Streaming API delivers real-time changes to Companies House data via long-running HTTP ...44.2 Finage WebSocket Market Data StreamReal-time streaming trades and quotes for US stocks, global stocks, forex, crypto, CFD indices, and ETFs ov...44.2 Polymarket WebSocketReal-time streaming feed for order book updates, trades, and market events on the Polymarket CLOB - used by...44.2 Trieve Message APIMessages are turns within a topic; the Message API drives RAG completions, streaming responses, and citatio...44.0 Deribit WebSocket APIJSON-RPC over WebSocket interface for real-time bidirectional communication with the Deribit exchange. Reco...43.9 gRPC Core FrameworkThe gRPC core framework defines the RPC protocol, service definition format using Protocol Buffers, and the...43.9 Neuphonic TTS WebSocket APIWebSocket endpoint for continuous, low-latency text-to-speech streaming. Enables real-time voice synthesis ...43.9 Enterprise Event SystemReal-time, pub/sub-based event streaming surface. Lets institutions and partners react to events emitted ac...43.7 BigQuery Storage APIThe BigQuery Storage API provides high-throughput read and write access to BigQuery managed storage. It ena...43.5 Spring WebFlux RSocketIntegration with RSocket binary protocol for reactive, message-driven communication between microservices. ...43.5 Gracenote Video MCP ServerA production remote Model Context Protocol server that grounds LLM responses in Gracenote's verified video ...43.4 Starlink Telemetry Stream APIA low-latency JSON over HTTP streaming API for device telemetry, consumed by repeated small-batch POST requ...43.3 LMNT Speech Sessions APIWebSocket-based real-time speech generation API for streaming LLM text output to synthesized audio with res...43.1 QUODD Cloud Streaming APICloud Streaming pushes changing quote and trade fields continuously rather than requiring repeated REST pol...43.1 PlayAI Text-to-Speech APIThe PlayAI Text-to-Speech API converts text into natural, human-like speech using the PlayDialog 1.0, Dialo...42.8 PlayAI Voice Agents APIThe PlayAI Voice Agents API lets developers create, configure, and run conversational AI agents that proces...42.8 Jito Streaming SurfacesReal-time streaming surfaces from Jito infrastructure — the wss tip_stream for continuous bundle-tip percen...42.7 TomTom AutoStream APITomTom AutoStream is a map data delivery platform optimized for on-demand and over-the-air cloud-to-device ...42.4 dxFeed dxLink WebSocket APIdxLink is dxFeed's WebSocket protocol for real-time market data streaming with multiplexed virtual channels...42.2 Mudrex Market Data APIPublic, unauthenticated market-data surface for Mudrex linear perpetual futures. Over REST it returns bulk ...42.0 AssemblyAI Streaming APIStreaming Speech-to-Text41.8 Cartesia TTS WebSocket APIBidirectional, multiplexed WebSocket at wss://api.cartesia.ai/tts/websocket for realtime speech generation....41.4 MEXC Futures WebSocket APIThe MEXC Futures WebSocket API streams real-time derivatives market data and account events over persistent...41.4 MEXC Spot WebSocket StreamsThe MEXC Spot WebSocket Streams deliver real-time market data and user account updates via persistent WebSo...41.4 Soundtrack APISingle-endpoint GraphQL API (queries, mutations and websocket subscriptions) for building display, control ...41.4 Smallest AI Streaming APIRealtime streaming speech synthesis.41.2 http.rbFast Ruby HTTP client built on the llhttp parser with a chainable request-building API, streaming bodies, p...40.8 Cisco NX-OS gNMI/gRPC APIgRPC Network Management Interface for streaming telemetry and configuration management on Nexus switches.40.7 Cisco NX-OS Model-Driven Telemetry APIStreaming telemetry interface for real-time operational data collection from Nexus switches using YANG models.40.7 Legend WebSocket APILegend's Hyperliquid-compatible WebSocket at wss://api.legend.trade/ws, using subscription-based messaging....40.7 LBank WebSocket Account and Order APIAuthenticated WebSocket API for receiving real-time account balance and order status updates from LBank. Cl...40.6 LBank WebSocket Market Data APIReal-time WebSocket API for streaming live market data from LBank. Clients can subscribe to K-line (candles...40.6 Skylark Precise Positioning ServiceReal-time GNSS corrections delivered as continuously-open NTRIP streams. A client opens an HTTP GET against...40.6 Plivo Audio Stream APIThe Plivo Audio Stream API attaches a real-time WebSocket audio stream to a live call, enabling AI voice ag...40.5 NATS JetStream Management APIThe JetStream wire API provides a protocol-level management interface for configuring and operating JetStre...40.3 NATS Messaging APIAsynchronous messaging API supporting core pub-sub, request-reply, queue groups, and JetStream persistent m...40.3 TradeStation Streaming APIThe TradeStation Streaming API provides real-time HTTP streaming endpoints using chunked transfer encoding ...40.3 Proofpoint on Demand (PoD) Log APIThe PoD Log API is Proofpoint's streaming surface rather than a request/response one: a client opens a WebS...40.0 QORTEX DTC APIThe QORTEX DTC API is the integration surface of Quanergy's detect-track-classify perception server. A gRPC...39.8 RisingWave SQL APIPostgreSQL-compatible SQL interface for ingesting streaming data, defining materialized views, running anal...39.5 Trading Economics Streaming APIPersistent WebSocket connection at wss://stream.tradingeconomics.com delivering live market quote ticks by ...39.3

Thin 122 Limited public surface area

Infoworks Streaming APIThe Streaming API from Infoworks — 3 operation(s) for streaming.39.2 PandaScore Live Data APIReal-time in-game state, frames, and event timelines streamed over WebSocket for supported esports titles. ...39.2 Oddpool WebSocket FeedsSingle-connection WebSocket streaming real-time, normalized cross-venue prediction market data (dist, book,...39.0 Bitnomial Market Data WebSocket APIReal-time WebSocket market-data feed delivering trade, order book, block trade, and market status messages ...38.9 Bunny.net Stream APIVideo streaming API for managing Video Libraries, videos, collections, captions, chapters, transcoding prof...38.9 Bunny.net Stream WebhooksSigned HTTP POST webhooks delivered by Bunny Stream to the WebhookUrl configured on a Video Library wheneve...38.9 Binance Spot WebSocket APIThe Binance Spot WebSocket API provides an alternative way to access spot trading functionality through per...38.7 Binance Spot WebSocket StreamsBinance Spot WebSocket Streams deliver real-time market data updates via persistent WebSocket connections. ...38.7 Xignite CloudStreaming APIStreaming product for pushing real-time quotes directly to applications. The product page is live but trans...38.6 7digital Streaming APIHLS and HTTP Progressive streaming for previews, catalogue, locker and subscriber playback.38.5 OneAtlas Data Living LibraryOneAtlas Data Living Library is a platform that provides users with access to a diverse range of geospatial...38.5 Eagle Eye Video API Platform (v3)REST API v3 for the Eagle Eye Networks cloud VMS: devices (bridges, cameras, speakers, switches, multi-came...38.4 Eko Connect Enterprise SDK and APIEko Connect is Eko Health's integration surface for telehealth vendors, telemedicine cart makers, and life-...38.4 GameAnalytics Data Export (PipelineIQ)PipelineIQ raw data export streams every gameplay event as JSON objects (a metadata wrapper plus an event d...38.4 Wazo Websocket Event Stream (wazo-websocketd)WebSocket gateway onto the Wazo internal event bus. An authenticated client subscribes to named platform ev...38.4 Apache Spark Streaming APIScalable, high-throughput, fault-tolerant stream processing of live data streams. Supports Structured Strea...38.3 Betfair Exchange Stream APILow-latency, subscription-based push of market and order changes over a persistent raw SSL/TCP socket to st...38.2 SEC API Filing Stream APIReal-time, push-based WebSocket feed of newly published SEC EDGAR filings. Connect to wss://stream.sec-api....38.1 Voiceitt WebSockets APISocket.IO WebSockets API for real-time speech recognition. After JWT login via the HTTP API, clients set re...38.0 Vitess VReplication APIVReplication is the Vitess framework for replicating and transforming data streams within and across Vitess...37.8 Quix Streaming Reader API (Real-time)Subscribe to live parameter data, events, definitions, active streams, topic metrics, and raw packages from...37.6 Triton GRPC APIHigh-performance gRPC API for model inference with support for streaming and binary tensor data.37.6 Apache Storm Topology APIThe Storm Topology API provides Java and other language bindings for building real-time processing topologi...37.5 1Forge Forex StreamWebSocket stream that delivers real-time bid/ask updates for subscribed forex and cryptocurrency pairs. Str...37.1 Nasdaq Cloud Data Service (NCDS) Streaming APINasdaq Cloud Data Service (NCDS) provides streaming and REST APIs for real-time and delayed market data del...37.0 Planet Subscriptions APIStanding subscriptions that deliver new imagery and analytic feeds to a cloud destination automatically as ...36.9 Hyperliquid WebSocket APIReal-time WebSocket feed delivering order-book deltas, trades, candles, BBO, user fills, user funding, user...36.8 Korbit Open API v2 WebSocketWebSocket streaming API for the Korbit exchange. Public channels stream ticker, orderbook and trade market ...36.7 Trip Ninja DataStream APIDataStream is a separately-credentialled Trip Ninja product with its own documentation section (setup, auth...36.7 Kpler AIS Data FeedGlobal vessel-position data feed launched September 2025 (replacing MarineTraffic AIS and the acquired Spir...36.5 Nasdaq Data Link Streaming APIStreaming API (Nasdaq Cloud Data Service) for real-time products — Nasdaq Basic, Last Sale+, TotalView, Con...36.5 Restream Chat APIWebSocket API for accessing and managing Restream Chat. Receive real-time chat messages from all connected ...36.5 Restream Streaming Updates APIWebSocket API for real-time streaming status updates. Connect to wss://streaming.api.restream.io/ws with an...36.5 Webull Market Data APIReal-time and historical market data — snapshots, tick data, quotes/depth, footprint, and OHLCV bars for st...36.5 Syndica ChainStream APIChainStream is Syndica's real-time Solana data streaming API. It consolidates updates from multiple validat...36.4 Syndica Solana RPC (WebSocket) APIStandard Solana RPC PubSub WebSocket service supporting accountSubscribe, programSubscribe, signatureSubscr...36.4 Spacetime Southbound Interface (SBI / CDPI)The Southbound Interface, also called the Control to Data-plane Interface (CDPI), is the collection of gRPC...36.3 AISStream AIS Stream APIReal-time global AIS vessel-tracking stream delivered over a single WebSocket at "wss://stream.aisstream.io...35.8 IO Intelligence APIOpenAI-compatible inference API for open-source AI models hosted on io.net's decentralized GPU network. Exp...35.8 Fish Audio APIThe Fish Audio API provides RESTful access to text-to-speech, speech-to-text, voice cloning, and voice mana...35.5 Kalshi WebSocket Streaming APIReal-time streaming feed for market data, order book updates, fills, and portfolio events on Kalshi. Docume...35.5 Polaris Native API (Point One Open)The native Point One corrections protocol. A Polaris API key is POSTed unauthenticated to https://api.point...35.3 Materialize HTTP APISession-less HTTP API for executing SQL statements against a Materialize region. Authenticates with HTTP Ba...34.9 Materialize Streaming Sources and Sinks (AsyncAPI)AsyncAPI 2.6 description of Materialize's event-driven integration surface: Kafka sources (CREATE SOURCE .....34.9 Gate WebSocket API v4Real-time WebSocket streams for market data (order books, trades, tickers, candlesticks) and private channe...34.8 Prometheus Remote WriteRemote Write is Prometheus' push protocol for shipping scraped samples to long-term storage and analysis ba...34.8 Voiceflow Conversations APIREST + SSE API for running Voiceflow agent turns, managing conversation state, updating variables, and emit...34.6 Argmax Local ServerA local transcription server for macOS that is API-compatible with the Deepgram Speech-to-Text (Live) API, ...34.5 IBroadcastServiceIBroadcastService exposes Steam game-broadcast metadata and stream-discovery endpoints used for in-app broa...34.3 Bitso WebSocket APIReal-time streaming channels for trades, order-book diffs, and full order-book snapshots. Used by trading c...34.0 LiteLLM Realtime APIProvides /realtime WebSocket endpoints for real-time model interactions with load balancing and guardrails ...34.0 Vocode Realtime Streaming ConversationReal-time, bidirectional streaming conversation pipeline (StreamingConversation) in the open-source library...34.0 WazirX WebSocket APIEndpoints for WebSocket authentication token generation33.6 Gcore Streaming APIVideo hosting (VOD) and live streaming.33.5 Samsung Smart TV SDKThe Samsung Smart TV developer platform enables development of Tizen-based applications for Samsung Smart T...33.5 Hailo Media Library ServiceThe Hailo Media Library is the C++ media and vision stack for the Hailo-15 AI vision processor. It exposes ...33.3 PowerTrade WebSocket FeedsReal-time WebSocket market-data feeds (reference data, top-of-book, order books, trades, index and settleme...33.1 Akka gRPCAkka gRPC provides support for building streaming gRPC servers and clients on top of Akka Streams, with cod...32.9 Akka HTTPAkka HTTP is a full HTTP stack (client and server-side) built on Akka actors and streams. It provides a rou...32.9 Bloomberg SAPI (Server API)The shared-server deployment of BLPAPI, providing real-time subscription and historical request/response ma...32.9 Bitquery Kafka StreamsProtobuf-encoded streams of decoded blockchain data delivered via managed Kafka topics. Designed for scale-...32.3 Bitquery Solana CoreCast (gRPC)gRPC streaming API for Solana that delivers decoded block, transaction, and instruction data with sub-secon...32.3 Bitquery Streaming SubscriptionsGraphQL subscriptions over WebSocket for real-time blockchain data - live DEX trades, transfers, pending tr...32.3 One Trading WebSocket Streams APIReal-time WebSocket API for market data (order book, price ticks, book ticker) and, after authenticating, p...32.3 TD Ameritrade Streaming Market Data APIProvides a WebSocket-based streaming API that delivers up-to-the-second market data including real-time Lev...32.3 Thought Machine Vault Core APIVault Core is Thought Machine's cloud-native core banking engine. Its API surface spans a REST Core API for...32.2 Thought Machine Vault Payments APIVault Payments is Thought Machine's cloud-native payments processing platform, able to run card, instant, b...32.2 Helius LaserStreamLow-latency gRPC streaming of Solana account, slot, transaction, and block updates (Geyser-compatible).32.0 Nasdaq Data Link Streaming APIStreaming API providing real-time delivery of market data through persistent connections.32.0 Vert.x gRPCA Vert.x-native gRPC implementation providing a reactive, non-blocking gRPC client and server built on top ...32.0 HTX WebSocket APIThe HTX WebSocket API provides a two-way real-time channel for subscribing to market data (klines, market d...31.8 Capital.com WebSocket APIThe Capital.com WebSocket API streams real-time market data, supporting up to 40 concurrent instruments and...31.5 LiveKit Egress APIRecord rooms or stream them to RTMP / HLS endpoints; output to S3, GCS, Azure Blob.31.5 XRPL WebSocket API (Mainnet)WebSocket interface to the XRP Ledger mainnet supporting all JSON-RPC methods plus real-time subscriptions ...31.3 Thru gRPC APIHigh-performance proto3 gRPC API (with gRPC-Web for browsers) for the Thru blockchain. QueryService exposes...31.2 Bloomberg B-PIPEReal-time streaming market data feed providing access to 35 million instruments across all asset classes, a...31.1 Apache Pulsar Messaging APIPulsar messaging protocol for producing and consuming messages on topics, with support for multiple subscri...31.0 Agora Broadcast Streaming APIThe Agora Broadcast Streaming API supports one-way large-scale content distribution with optimized bandwidt...30.6 aiOla Speech to Text APIJargonic automatic speech recognition. Batch file transcription over HTTP (POST /api/speech-to-text/file, 5...30.6 aiOla Text to Speech APILow-latency speech synthesis with multi-language, multi-voice support and jargon-pronunciation conditioning...30.6 SimCorp Dimension Streaming APIReal-time streaming API for delivering live investment data, market updates and event-driven notifications ...30.6 ActionIQ Data Ingestion APIActionIQ provides a real-time REST API endpoint for streaming customer event data into the platform. The in...30.4 Ultraleap Tracking WebSocketAn open-source WebSocket server from Ultraleap that restores the LeapJS-compatible surface removed when Lea...30.4 Sourcegraph Streaming Search APIServer-sent-event API that streams search results as they are produced, used by the Sourcegraph UI and by i...30.2 ACTIV Web One API (AtlasFeed)WebSocket-based (WebAssembly) JavaScript/TypeScript market data API for browser and Node.js, installed as n...30.1 Bloomberg B-PIPE APIReal-time streaming market data API delivering quotes, trades, and market depth.30.1 Pushbullet Realtime Event StreamSecure WebSocket stream that delivers realtime events to a Pushbullet account, including periodic `nop` kee...30.0 Synthetix WebSocket Info APIPublic WebSocket API for real-time Synthetix market data subscriptions including live market prices, candle...29.9 Synthetix WebSocket Trade APIAuthenticated WebSocket API for real-time trading operations and account event streaming on Synthetix. Supp...29.9 Aevo Exchange WebSocket APIReal-time WebSocket API for Aevo exchange providing low-latency streams for orderbook updates, trade feeds,...29.8 Respeecher Space Real-Time TTS APILow-latency real-time text-to-speech that begins streaming audio in under 200ms via three transports - one-...29.7 Rev AI Streaming Speech-to-Text APIReal-time speech transcription via WebSocket connections supporting up to 10 concurrent streams with a 3-ho...29.2 Apache Beam SDKThe Apache Beam SDK provides the programming model for constructing data processing pipelines. Available in...28.9 Euronext Optiq Market Data Gateway (MDG)Low-latency real-time market data feed for Euronext cash and derivatives markets delivered as UDP multicast...28.9 Apache KafkaOpen-source distributed event streaming platform governed by the Apache Software Foundation. Described as u...28.8 Apache PulsarOpen-source distributed messaging and streaming platform built for the cloud. Top-10 Apache Software Founda...28.8 Confluent CloudCommercial managed service from Confluent positioned as "the industry's only fully managed data streaming p...28.8 MaterializeStreaming SQL database based on incremental view maintenance. Continually ingests CDC from Postgres, Kafka,...28.8 RedpandaKafka API-compatible streaming data platform written in C++ (no JVM, no ZooKeeper). Self-described as an "A...28.8 TinybirdManaged ClickHouse-based SaaS for real-time analytics on event data. Ingests events via an HTTP Events API ...28.8 BMW CarData Streaming APIThe BMW CarData Streaming API delivers near-real-time vehicle telematics over MQTT 3.1.1 with TLS. Clients ...28.6 Strimzi Operator APIThe Strimzi Operator API is expressed through Kubernetes Custom Resource Definitions (CRDs). Operators are ...28.6 HYPERLABS Radium gRPC API (TDR11100)Public gRPC control and acquisition interface for the HYPERLABS TDR11100 Time Domain Reflectometer. The pro...28.3 JW Player Delivery APIHigh-availability CDN-backed API for content embedding, playback metadata retrieval, poster images, streami...28.3 Rime TTS APIRealtime text-to-speech API supporting streaming HTTP, WebSocket, and SSE delivery for Arcana and Mist mode...28.3 Sense Street WebSocket APIReal-time streaming access to quotes and market activity extracted from broker conversations across multipl...28.3 Lightwalletd gRPC APIA bandwidth-efficient gRPC service that provides a compact block streaming interface to the Zcash blockchai...28.2 PowerSync Sync Service APIThe PowerSync Service exposes a streaming sync protocol over HTTP/WebSocket that client SDKs connect to usi...28.1 CMG XC EventHubReal-time event notification surface for CMG XC. Per CMG's published FAQ, "real-time event notifications ar...28.0 Kafka Consumer APIAPI for subscribing to topics and processing streams of records.28.0 Kafka Producer APIAPI for publishing streams of records to Kafka topics.28.0 Kafka Streams APIAPI for building stream processing applications and microservices on top of Kafka.28.0 OddsJam Streaming APIThe Streaming API from OddsJam — 3 operation(s) for streaming.28.0 Morgan Stanley API Platform (WebSocket Streaming)Alongside its REST APIs, the Morgan Stanley API Platform exposes streaming WebSocket APIs for onboarded ins...27.5 Blynk Device Streaming ProtocolBi-directional low-latency streaming connection protocol used by the Blynk Library and Blynk.Edgent to main...27.4 Pushover Open Client APIReal-time client API for Pushover. Combines a WebSocket channel at wss://client.pushover.net/push that stre...27.4 Arkham Exchange WebSocket APIWebSocket API for Arkham Exchange streaming market data and private account events - real-time ticker, dept...27.1 BitMart Futures WebSocket APIThe BitMart Futures WebSocket API streams real-time derivatives market data and account updates through per...27.0 BitMart Spot WebSocket APIThe BitMart Spot WebSocket API delivers real-time streaming market data and private account updates via per...27.0 FirehoseOpen-source flat-file extraction layer that powers Substreams. Provides chain-specific gRPC streams of bloc...26.8 The Graph SubstreamsgRPC streaming protocol for parallelized blockchain dataflows backed by Firehose. Substreams power high-thr...26.8 CoWorkr Stream APICoWorkr's real-time Stream API. Built on Node.js and DDP (the Meteor Distributed Data Protocol), it pushes ...26.7

Emerging 34 Early or largely undocumented

iHeartRadio Live Stations APIThe iHeartRadio Live Stations API provides access to live broadcast radio station information including sta...25.4 iHeartRadio Podcasts APIThe iHeartRadio Podcasts API enables search and discovery of podcasts available on the iHeartRadio platform...25.4 Radio Cult Streaming APIThe Streaming API from Radio Cult — 1 operation(s) for streaming.24.4 ACTIV OnePlatform Web API (One API)WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering real-time stream...24.2 Bitget WebSocket APIReal-time WebSocket API providing public and private channels for market data (tickers, candles, order book...23.8 Lyra WebSocket APIWebSocket API for real-time streaming of market data, order book updates, ticker subscriptions, and private...23.8 Pandora Developer APIThe Pandora Developer API provides GraphQL-based access to Pandora's music catalog of over 30 million track...23.7 Wordware WordApps APIRun deployed WordApps programmatically. Each published WordApp exposes a run endpoint (POST /api/released-a...23.7 Microsoft Graph Stream Video APIMicrosoft Stream (on SharePoint) provides video management capabilities through Microsoft Graph and SharePo...22.9 Pendle Real-Time Feeds (Socket.IO)Real-time data feeds delivered over Socket.IO from `https://api-v2.pendle.finance/pendle-v2`. Clients conne...22.9 Spire Maritime AIS TCP StreamAlways-on real-time AIS feed delivered over a RAW TCP SOCKET (not HTTP, not WebSocket). Client opens a TCP ...22.6 Unreal Pixel StreamingPixel Streaming streams an Unreal Engine application running on a server to remote browser clients over Web...22.6 HPE Aruba Networking Central Streaming APIThe Central Streaming API delivers real-time telemetry and event streams (location, presence, AppRF, audit,...22.3 QuoteMedia Streaming Data Feed APIEnterprise tick-by-tick streaming feed for real-time or delayed Level 1 and Level 2 market data, normalized...21.7 Quotestream Connect for DevelopersSelf-service package for non-professional developers building personal applications, combining tick-by-tick...21.7 DigiSelf Realtime APIREST + WebSocket API for driving real-time photorealistic AI avatars. Create meeting bots that join Google ...21.6 SMLink Streaming-APIPartner-gated interface announced September 2025 that delivers real-time SM300 vessel telemetry and data fe...20.7 Bloomberg Live Streaming APIEmbed or access Bloomberg TV live stream for licensed digital distribution on websites, apps, and digital p...19.5 PySpark StreamingReal-time stream processing capabilities using DStreams and Structured Streaming.19.3 8i WebPlayerThe 8i WebPlayer (volcap-player.js) is an embeddable browser player for 8i PAT volumetric content, served f...19.1 Melon MCP ServerMelon's first-party remote Model Context Protocol server, published by Kakao Entertainment's AI Application...18.8 Nasdaq Cloud Data Service (NCDS) — Kafka StreamsReal-time Nasdaq market data delivered over Apache Kafka (TLS) with SASL/OAUTHBEARER authentication against...18.0 CoinDCX Streaming Socket.IO APIReal-time Socket.IO streaming at stream.coindcx.com for public spot and futures market data (orderbook dept...17.7 Goldsky MirrorChange-data-capture pipelines that stream decoded onchain data from Goldsky's indexers into customer-manage...17.4 Goldsky TurboVectorized real-time data pipelines with SQL transforms over decoded onchain data, with the same multi-sink...17.4 Uforia Audio PlatformUforia is the largest Spanish-language audio platform in the United States, operating 40 radio stations and...17.2 ViX Streaming PlatformViX is the world's largest Spanish-language streaming service offering over 65,000 hours of content across ...17.2 Subaru SiriusXM APIIn-vehicle satellite and streaming audio service delivered through SiriusXM. Trial activation, subscription...16.7 Upsolver SQLake APIHTTP API behind the Upsolver SQLake platform, used by the first-party Python SDK (DB API 2.0), CLI, and dbt...16.3 Spire Aviation APIREST APIs and real-time event and tracking streams for global flight data, including space-based ADS-B posi...15.8 RTSP ImplementationsCommon open-source RTSP server and client implementations used in production. MediaMTX (formerly rtsp-simpl...13.9 RTSP ProtocolThe Real-Time Streaming Protocol (RTSP) is a stateful protocol defined in RFC 2326 (1.0) and RFC 7826 (2.0)...13.9 Jakarta WebSocketJakarta WebSocket defines a standard API for creating server and client endpoints that communicate using th...13.4 iQIYI SaaS OTT Developer APIRESTful API for the iQIYI SaaS / OTT platform, covering Video, Channel, Category, Album, Search, and Player...11.0

Minimal 8 Almost no public developer surface

Netflix Open ConnectNetflix Open Connect is the purpose-built content delivery network that delivers Netflix streaming traffic....10.7 MayStreet High Performance Query (HPQ) APILow-latency, near-time market data query API delivered as a streaming WebSockets service so clients can pro...10.3 Equinox+Consumer streaming fitness app delivering live and on-demand classes across SoulCycle, Pure Yoga, Precision...7.7 Peloton APIConceptual GraphQL schema for the Peloton connected fitness platform, derived from community reverse-engine...6.3 8tracks API v3Historical public REST API for the 8tracks internet-radio platform. Exposes mix discovery and search, per-s...0.0 App.net Stream APIThe App.net Stream API — a RESTful, OAuth 2.0-secured social API covering posts, users, follows, channels/m...0.0 Fauna Event Streaming APIThe Fauna Event Streaming API enables real-time change data capture by maintaining an open connection to th...0.0 Flowdock Streaming APILong-lived HTTP connection to stream.flowdock.com delivering real-time flow events. Two content types: newl...0.0

Companies reaching this through an API (218)

These companies publish an API, specification or operation carrying “Streaming” 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.

1Forge 8x8 Aalyria ActionIQ Actionpower Adobe Analytics Aedifion aiOla Airbus OneAtlas Akka Allo-Media Ally Invest Amberdata Amplitude Apache Kafka Apache Storm Apple Aptos Argmax Arkham Intelligence AssemblyAI AT Protocol Axway Bazel Bentley Systems Binance Binance.US Bitget BitMart Bitnomial Bitso Blockchain.com Blockdaemon Bloomberg Data Bloomberg Data Workflows Bloomberg Professional Service Bluesky Blynk Brocade BuiltWith Bunny.net Canvas LMS Capital Markets Gateway Cartesia Cisco Nexus Dashboard Clearbit (HubSpot Breeze Intelligence) Cloud Foundry Cloudflare CoinDCX Companies House

Show all 218 companies ↓

Convai Crypto.com Cumulocity Databento DeepL Dell Servers Deribit Deutsche Börse dxFeed Edge Impulse Eko Health emnify EODHD Euronext Events F5 Fabric Origin Factiva fal Fauna Finage FlightAware Flowdock (Discontinued) FOREX.com GameAnalytics Gate.io Gemini Gemini Trust Company Google BigQuery Google Gemini gRPC Hailo Helius HPE Aruba Networking HTX Hugging Face Transformers HYPERLABS Hyperliquid Indeed Infoworks INRIX io.net iOS Itron Jack Henry & Associates Jakarta EE Jito Labs Juniper Mist AI Kalshi Korbit Kpler Lambda LBank LegendTrade LiteLLM LiveKit LMNT Lukka Lyra MaiCoin Massive (formerly Polygon.io) MayStreet Mercedes-Benz Mercedes me MEXC Moore Threads Morgan Stanley Morningstar Mudrex Mux Nasdaq Nasdaq Nasdaq Data Link NATS Oddpool OddsJam One Trading OpenAI OpenSea Oracle Oracle Hospitality Ostium Labs PandaScore Pendle Finance Planet Labs Plivo Point One Navigation Polymarket Power BI PowerSync PowerTrade Prezent Prometheus Proofpoint Pushbullet Pushover Quix R-Zero Refinitiv Eikon Regal Respeecher Restream Rhombus Systems Ribbon Finance Rime Ruby Programming Language and Popular API Gems RudderStack Runloop S&P Global Salesforce Salesforce Sales Cloud Salesforce Service Cloud APIs Samsung Sanas Sanity Sea Machines Robotics SEC API Sense Street Shodan Sift Stack Smallest AI Soundtrack Your Brand Sourcegraph SPAN Speechmatics Spire Global Spire Maritime Spring WebFlux Starlink Steam Subaru of America Swift Navigation Sygnum Synthetix tastytrade Telia Company Tensor The Graph ThetaData Thought Machine ThousandEyes TomTom Toolhouse TradeStation Trading Economics Trieve Trigger.dev Triton Inference Server Twelve Data Ultraleap Unreal Engine Unto Labs Validic Vantor Vert.x Vitess Vocode Voiceflow Voiceitt WazirX Wazo Webjet Webull Webz.io Wordware Xignite XRP Ledger Zcash Zendesk

Score breakdown

Frequency

76.1

log-scaled weighted occurrences

Breadth

7.6

spread across providers

Quality lift

33.1

mean composite of providers using it

Cohesion

23.2

strength of nearest seed neighbor

Where this tag sits

Media broader

Where this tag comes from

Provider tag291

Api tag337

Openapi tag19

Openapi op tag60

Cohort brief

Auto-generated

The 266 providers in the APIs.io catalog tagged Streaming, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

266

all scored

Mean Kin Score

29.5

+6.6 vs catalog 22.9

Mean Agent Readiness

16.8

+4.9 vs catalog 11.9

Spread

0–76.7

median 30.2 · σ 18.7

How the 266 split by band

Exemplar 6Strong 24Developing 50Thin 72Emerging 50Minimal 64

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	27.3	17.6	+9.7	266
Developer Ergonomics	32.5	23.2	+9.3	266
Operational Transparency	19.8	13.7	+6.1	266
Access Clarity	29.7	26.5	+3.2	266
Discoverability	61.2	58.1	+3.1	266
Contract Governance	8.3	6.3	+2	266

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)	18%	14%	+4
MCP server (first-party)	17%	12%	+5
Agent Skills	0%	0%	0
OAuth scopes	14%	11%	+3
Security	100%	98%	+2
Arazzo workflows	3%	2%	+1
Governance rules	24%	14%	+10

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 Svix 76.7
2 0xArchive 71.6
3 Gumlet 71.1
4 X 70.9
5 Cloudera 70.3
6 Dolby 66.5
7 Buf 65.3
8 Fastly 65.2
9 Red5 65.1
10 Nexla 64.7

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/streaming"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

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

The distribution (Pro)

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

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Streaming

Providers using this tag (291)

APIs with this tag (337)