emerging · 0.3 capabilitymarket schemadomain

A2A

Score 20.9 / 100 18 providers 11 APIs Search apis.io →
Variants seen in the corpus: A2Aa2a

Providers using this tag (18)

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

Strong 4 Solid coverage with minor gaps
LacunaLacuna (lacuna.fm), operated by JOYLINK LTD, is an AI music creation platform that turns lyrics or a plain-...4 APIs65.7Parallel Web SystemsParallel Web Systems builds infrastructure for intelligence on the web, giving AI agents and developers hig...8 APIs65.3CortiCorti is a healthcare AI platform for developers, offering a full stack of clinical AI building blocks over...8 APIs62.8Microsoft Azure API ManagementMicrosoft Azure API Management is a hybrid, multicloud management platform for APIs across all environments...71 APIs57.5
Developing 7 Usable, with meaningful gaps to close
ApstalAI-first website analytics and visitor tracking platform that replaces traditional dashboards with a natura...2 APIs53.4Lean TechnologiesLean Technologies is a Middle East Open Banking and Open Finance infrastructure provider founded in 2019 an...19 APIs52.6KongKong is the AI Connectivity Company. Its platform spans Kong Gateway (the open-source API gateway built on ...139 APIs51.7AgnoAgno (formerly Phidata) is a high-performance open-source Python framework for building multi-modal, multi-...21 APIs48.5AGNTCYAGNTCY is the open collective for agent interoperability, initiated by Outshift — Cisco's incubation group ...5 APIs48.4GraviteeGravitee.io is an open-source API management platform from GraviteeSource, combining a high-performance API...55 APIs47.6AVORA Agent ForgeAVORA Agent Forge is an evidence-first Solana SPL token risk scanner and public AI interoperability service...3 APIs40.5
Thin 5 Limited public surface area
SuperscaleSuperscale is an autonomous AI marketing agent for performance advertising. A user gives it a product URL (...2 APIs38.3Finite StateFinite State is a product security platform for connected-device and embedded software manufacturers. It pe...3 APIs36.4CasdoorCasdoor is an open-source, AI-first identity and access management (IAM) and MCP gateway authentication ser...15 APIs35.0LiteLLMLiteLLM is an open-source Python SDK and proxy server providing a unified OpenAI-compatible interface to 10...33 APIs34.0Kong AI GatewayKong AI Gateway is the AI-native capability layer built on top of Kong Gateway and managed through Kong Kon...21 APIs33.5
Emerging 2 Early or largely undocumented
Agentic Resource Discovery (ARD)Agentic Resource Discovery (ARD) is a proposed open standard for the discovery layer that sits in front of ...2 APIs24.3SchemaSureStructured data extraction API that converts unstructured text or HTML into JSON guaranteed to validate aga...1 API13.0

APIs with this tag (11)

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 2 Solid coverage with minor gaps
Lacuna A2A AgentAgent-to-Agent JSON-RPC endpoint at https://www.lacuna.fm/a2a advertising the "Lacuna Music" agent card at ...65.7Corti Agentic Framework APIBuild and orchestrate healthcare agents over the A2A protocol with prebuilt medical experts and MCP tool in...62.8
Developing 4 Usable, with meaningful gaps to close
Kong Agent GatewayKong Agent Gateway is a capability of Kong AI Gateway (GA April 2026 with AI Gateway 3.14) that governs age...51.7Kong AI GatewayKong AI Gateway is the connectivity and governance layer for AI-native applications. Built on Kong Gateway,...51.7Agno A2A APIThe A2A API from Agno — 15 operation(s) for a2a.48.5Gravitee AI Agent ManagementGravitee AI Agent Management brings the API management discipline to agentic AI ecosystems. It is delivered...47.6
Thin 4 Limited public surface area
Finite State A2A Content APIPublic, anonymous, read-only JSON-RPC 2.0 API exposing Finite State's published content: blog posts, resour...36.4Casdoor MCP GatewayCasdoor's MCP (Model Context Protocol) gateway and A2A (Agent-to-Agent) protocol surface, designed to broke...35.0LiteLLM A2A Agent Gateway APIProvides /a2a endpoints for the Agent-to-Agent (A2A) gateway, enabling agent registration, publishing, and ...34.0Kong Agent GatewayKong Agent Gateway is a capability of Kong AI Gateway (GA April 2026 with AI Gateway 3.14) that governs age...33.5
Emerging 1 Early or largely undocumented
SchemaSure Structured Extraction APIREST API (OpenAPI 3.1) exposing POST /v2/extract (x402 V2 paid), legacy POST /extract, GET /health, and GET...13.0

Score breakdown

Frequency
39.5
log-scaled weighted occurrences
Breadth
0.5
spread across providers
Quality lift
53.5
mean composite of providers using it
Cohesion
1.2
strength of nearest seed neighbor

Related tags

LLM 5 co-occurrences MCP 13 co-occurrences Agents 7 co-occurrences AI Agents 5 co-occurrences Open-Source 5 co-occurrences Artificial Intelligence 5 co-occurrences

Where this tag comes from

Provider tag12
Api tag11
Openapi tag1
Openapi op tag15

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