canmyagentuse / data /api /specs.json
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Evidence Atlas 2026-08-28 export: cells, surfaces, features, vendors, sources, assertions, API exports
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{
"items": [
{
"title": "A2UI",
"description": "Streaming representation for generative user interfaces with stable and candidate specification tracks.",
"slug": "a2ui",
"locale": "en",
"seoTitle": "A2UI compatibility reference — Can My Agent Use",
"socialTitle": "A2UI compatibility",
"socialDescription": "Stable and candidate revisions for A2UI generative interfaces.",
"llmSummary": "A2UI defines a streaming JSON representation for generative UI. The 0.9.1 stable line and 1.0 candidate must not be conflated.",
"audience": "Architects building generative user interfaces.",
"contentKind": "specification",
"status": "published",
"tags": [
"a2ui",
"ui",
"streaming",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "A2UI project",
"revision": "0.9.1 stable / 1.0 candidate",
"maturity": "mixed",
"structure": "Streaming JSON UI schema",
"sourceId": "S-082",
"canonicalUrl": "https://a2ui.org/specification/v0.9-a2ui/",
"summary": "Stream structured generative-interface descriptions to compatible renderers.",
"roles": [
"producer",
"renderer"
],
"aliases": [
"Agent-to-UI"
],
"html": "/specs/a2ui",
"markdown": "/specs/a2ui.md",
"json": "/api/v1/specs/a2ui.json"
},
{
"title": "AG-UI",
"description": "Open event protocol connecting agent backends to interactive applications and user interfaces.",
"slug": "ag-ui",
"locale": "en",
"seoTitle": "AG-UI compatibility reference — Can My Agent Use",
"socialTitle": "AG-UI compatibility",
"socialDescription": "Event roles and agent-to-application UI boundaries for AG-UI.",
"llmSummary": "AG-UI is an event-based bidirectional protocol between agent backends and interactive applications. It complements rather than replaces MCP and A2A.",
"audience": "Architects building interactive agent applications.",
"contentKind": "specification",
"status": "published",
"tags": [
"ag-ui",
"ui",
"events",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "AG-UI community",
"revision": "living",
"maturity": "open protocol",
"structure": "Event-based bidirectional agent and user interaction",
"sourceId": "S-077",
"canonicalUrl": "https://docs.ag-ui.com/",
"summary": "Stream agent state, events, and interaction between backends and user interfaces.",
"roles": [
"agent-backend",
"application"
],
"aliases": [
"Agent User Interaction Protocol"
],
"html": "/specs/ag-ui",
"markdown": "/specs/ag-ui.md",
"json": "/api/v1/specs/ag-ui.json"
},
{
"title": "Agent Client Protocol",
"description": "Protocol connecting coding agents to editor and client hosts through directional JSON-RPC roles.",
"slug": "acp",
"locale": "en",
"seoTitle": "Agent Client Protocol compatibility reference — Can My Agent Use",
"socialTitle": "Agent Client Protocol compatibility",
"socialDescription": "Client and agent roles, transports, and revision boundaries for ACP.",
"llmSummary": "ACP connects coding agents and editor clients. Local stdio is established while remote transport work evolves, so role, transport, and revision must be explicit.",
"audience": "Architects and engineers evaluating editor-agent interoperability.",
"contentKind": "specification",
"status": "published",
"tags": [
"acp",
"editor",
"coding-agent",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "ACP / Zed ecosystem",
"revision": "living",
"maturity": "active",
"structure": "JSON-RPC; local stdio established and remote transport evolving",
"sourceId": "S-056",
"canonicalUrl": "https://agentclientprotocol.com/overview/introduction",
"summary": "Connect an editor or client host to an external coding agent.",
"roles": [
"client",
"agent"
],
"aliases": [
"ACP"
],
"html": "/specs/acp",
"markdown": "/specs/acp.md",
"json": "/api/v1/specs/acp.json"
},
{
"title": "Agent Host Protocol",
"description": "Preview protocol for hosting, sharing, subscribing to, and resuming persistent agent sessions.",
"slug": "ahp",
"locale": "en",
"seoTitle": "Agent Host Protocol compatibility reference — Can My Agent Use",
"socialTitle": "Agent Host Protocol compatibility",
"socialDescription": "Preview maturity and session host/client roles for AHP.",
"llmSummary": "AHP is a preview session host protocol in the VS Code ecosystem. Current claims require precise version and preview qualifiers.",
"audience": "Architects and engineers evaluating persistent agent sessions.",
"contentKind": "specification",
"status": "published",
"tags": [
"ahp",
"sessions",
"host",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "Microsoft",
"revision": "0.5.x",
"maturity": "preview",
"structure": "Session host and client protocol",
"sourceId": "S-116",
"canonicalUrl": "https://code.visualstudio.com/blogs/2026/08/26/agent-host-architecture",
"summary": "Host persistent agent sessions that clients can subscribe to and resume.",
"roles": [
"session-host",
"client"
],
"aliases": [
"AHP",
"Agent Host"
],
"html": "/specs/ahp",
"markdown": "/specs/ahp.md",
"json": "/api/v1/specs/ahp.json"
},
{
"title": "Agent Plugins",
"description": "Cross-vendor package format that composes portable agent components and namespaced host extensions.",
"slug": "agent-plugins",
"locale": "en",
"seoTitle": "Agent Plugins compatibility reference — Can My Agent Use",
"socialTitle": "Agent Plugins compatibility",
"socialDescription": "Portable manifest core, components, and vendor-extension boundaries for Agent Plugins.",
"llmSummary": "Agent Plugins 1.0 uses a closed JSON manifest with optional skills and MCP configuration plus namespaced extensions. Vendor-native plugin formats remain separate.",
"audience": "Architects and engineers evaluating agent extension packaging.",
"contentKind": "specification",
"status": "published",
"tags": [
"plugins",
"skills",
"mcp",
"packaging"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "Cross-vendor technical steering committee",
"revision": "1.0.0",
"maturity": "stable",
"structure": "Closed JSON manifest with optional skills, MCP configuration, and vendor namespaces",
"sourceId": "S-049",
"canonicalUrl": "https://agent-plugins.org/specification/1.0",
"summary": "Distribute portable agent components in a versioned manifest package.",
"roles": [
"plugin-author",
"client",
"host"
],
"aliases": [
"plugin.json",
"open agent plugins"
],
"html": "/specs/agent-plugins",
"markdown": "/specs/agent-plugins.md",
"json": "/api/v1/specs/agent-plugins.json"
},
{
"title": "Agent Skills",
"description": "Open directory convention for reusable agent instructions, references, assets, and optional scripts centered on SKILL.md.",
"slug": "agent-skills",
"locale": "en",
"seoTitle": "Agent Skills compatibility reference — Can My Agent Use",
"socialTitle": "Agent Skills compatibility",
"socialDescription": "Discovery, progressive loading, resources, and script boundaries for Agent Skills.",
"llmSummary": "Agent Skills are portable directories centered on SKILL.md. Discovery, progressive loading, resource use, script execution, and install scopes are distinct compatibility features.",
"audience": "Architects and engineers evaluating agent capability packaging.",
"contentKind": "specification",
"status": "published",
"tags": [
"skills",
"instructions",
"packaging"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "Agent Skills maintainers",
"revision": "living",
"maturity": "open standard",
"structure": "SKILL.md with YAML frontmatter and directory conventions",
"sourceId": "S-043",
"canonicalUrl": "https://agentskills.io/specification",
"summary": "Package reusable instructions with optional references, assets, and scripts.",
"roles": [
"skill-author",
"consuming-agent",
"host"
],
"aliases": [
"SKILL.md",
"skills"
],
"html": "/specs/agent-skills",
"markdown": "/specs/agent-skills.md",
"json": "/api/v1/specs/agent-skills.json"
},
{
"title": "Agent2Agent Protocol",
"description": "Linux Foundation protocol family for agent discovery, task exchange, artifacts, streaming, and bindings.",
"slug": "a2a",
"locale": "en",
"seoTitle": "Agent2Agent Protocol compatibility reference — Can My Agent Use",
"socialTitle": "Agent2Agent Protocol compatibility",
"socialDescription": "Roles, tasks, artifacts, discovery, and binding boundaries for A2A.",
"llmSummary": "A2A covers agent-to-agent discovery and task exchange. Agent Cards, tasks, artifacts, streaming, and bindings should be assessed as revision-specific capabilities.",
"audience": "Architects and engineers evaluating agent-to-agent interoperability.",
"contentKind": "specification",
"status": "published",
"tags": [
"a2a",
"agents",
"tasks",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "Linux Foundation project",
"revision": "1.0.x",
"maturity": "stable family",
"structure": "Agent Cards, tasks, artifacts, streaming, and protocol bindings",
"sourceId": "S-067",
"canonicalUrl": "https://a2a-protocol.org/latest/specification/",
"summary": "Let agents discover one another and exchange tasks, artifacts, and updates.",
"roles": [
"client-agent",
"remote-agent"
],
"aliases": [
"A2A",
"Agent2Agent"
],
"html": "/specs/a2a",
"markdown": "/specs/a2a.md",
"json": "/api/v1/specs/a2a.json"
},
{
"title": "AGENTS.md",
"description": "Community Markdown convention for repository-scoped instructions consumed with host-specific discovery and precedence rules.",
"slug": "agents-md",
"locale": "en",
"seoTitle": "AGENTS.md compatibility reference — Can My Agent Use",
"socialTitle": "AGENTS.md compatibility",
"socialDescription": "Discovery, nesting, precedence, and host interpretation for AGENTS.md.",
"llmSummary": "AGENTS.md is a repository instruction convention. Filename recognition, nested discovery, precedence, scope, and merge behavior can differ by harness.",
"audience": "Engineers comparing workspace instruction behavior.",
"contentKind": "specification",
"status": "published",
"tags": [
"instructions",
"repositories",
"agents-md"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "Community convention",
"revision": "living",
"maturity": "convention",
"structure": "Markdown instruction file with host-specific discovery and precedence",
"sourceId": "S-072",
"canonicalUrl": "https://agents.md/",
"summary": "Provide repository-scoped instructions to compatible coding agents.",
"roles": [
"repository-author",
"consuming-agent"
],
"aliases": [
"AGENTS.md",
"repository instructions"
],
"html": "/specs/agents-md",
"markdown": "/specs/agents-md.md",
"json": "/api/v1/specs/agents-md.json"
},
{
"title": "MCP Apps",
"description": "Stable MCP extension for interactive interfaces returned by tools and rendered by compatible hosts.",
"slug": "mcp-apps",
"locale": "en",
"seoTitle": "MCP Apps compatibility reference — Can My Agent Use",
"socialTitle": "MCP Apps compatibility",
"socialDescription": "Host roles, stable revision, and evidence boundaries for MCP Apps.",
"llmSummary": "MCP Apps is an MCP extension for ui resources and sandboxed interactive interfaces. A host can support MCP tools without supporting MCP Apps.",
"audience": "Architects and engineers evaluating agent interoperability.",
"contentKind": "specification",
"status": "published",
"tags": [
"mcp",
"ui",
"apps",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "MCP project",
"revision": "2026-01-26",
"maturity": "stable extension",
"structure": "MCP extension, ui resource, and sandboxed frame",
"sourceId": "S-039",
"canonicalUrl": "https://modelcontextprotocol.io/extensions/apps/specification",
"summary": "Return an interactive interface from an MCP tool for rendering inside a compatible host.",
"roles": [
"host",
"server",
"app"
],
"aliases": [
"MCP UI",
"MCP interactive apps"
],
"html": "/specs/mcp-apps",
"markdown": "/specs/mcp-apps.md",
"json": "/api/v1/specs/mcp-apps.json"
},
{
"title": "Model Context Protocol",
"description": "Revision-aware reference for the protocol connecting agent hosts and clients to tools, resources, prompts, and related server capabilities.",
"slug": "mcp",
"locale": "en",
"seoTitle": "Model Context Protocol compatibility reference — Can My Agent Use",
"socialTitle": "Model Context Protocol compatibility",
"socialDescription": "Roles, revision, maturity, and atomic capability coverage for MCP.",
"llmSummary": "MCP is a JSON-RPC protocol family with asymmetric client and server roles. Compatibility must be evaluated by primitive, transport, authorization profile, revision, and surface.",
"audience": "Architects and engineers evaluating agent interoperability.",
"contentKind": "specification",
"status": "published",
"tags": [
"mcp",
"tools",
"context",
"protocol"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "MCP project / AAIF ecosystem",
"revision": "2026-07-28",
"maturity": "published",
"structure": "JSON-RPC, normative prose, and a TypeScript schema",
"sourceId": "S-005",
"canonicalUrl": "https://modelcontextprotocol.io/specification/2026-07-28",
"summary": "Connect hosts and clients to server-provided tools, resources, prompts, and related primitives.",
"roles": [
"host",
"client",
"server"
],
"aliases": [
"MCP"
],
"html": "/specs/mcp",
"markdown": "/specs/mcp.md",
"json": "/api/v1/specs/mcp.json"
},
{
"title": "NLWeb",
"description": "Early natural-language web interface approach using semantic web data and MCP-oriented endpoints.",
"slug": "nlweb",
"locale": "en",
"seoTitle": "NLWeb compatibility reference — Can My Agent Use",
"socialTitle": "NLWeb compatibility",
"socialDescription": "Early maturity and web endpoint boundaries for NLWeb.",
"llmSummary": "NLWeb is an early natural-language web interface approach using Schema.org data and MCP-oriented endpoints. Implementation and conformance scope remain evolving.",
"audience": "Web and agent architects evaluating natural-language interfaces.",
"contentKind": "specification",
"status": "published",
"tags": [
"nlweb",
"web",
"semantic-data",
"mcp"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "NLWeb community",
"revision": "0.5 TypeSpec",
"maturity": "early",
"structure": "Natural-language web endpoints, Schema.org data, and MCP-oriented interfaces",
"sourceId": "S-085",
"canonicalUrl": "https://github.com/nlweb-ai/nlweb-typespec",
"summary": "Expose web content and actions through natural-language-oriented endpoints.",
"roles": [
"website",
"client",
"agent"
],
"aliases": [
"Natural Language Web"
],
"html": "/specs/nlweb",
"markdown": "/specs/nlweb.md",
"json": "/api/v1/specs/nlweb.json"
},
{
"title": "WebMCP",
"description": "Draft web-platform work for exposing website capabilities as tools to user agents and agent systems.",
"slug": "webmcp",
"locale": "en",
"seoTitle": "WebMCP compatibility reference — Can My Agent Use",
"socialTitle": "WebMCP compatibility",
"socialDescription": "Draft maturity, web roles, and test boundaries for WebMCP.",
"llmSummary": "WebMCP is draft W3C community-group work for websites exposing tools through web APIs and markup. Draft revision and browser/runtime flags are mandatory qualifiers.",
"audience": "Web platform architects and agent-tooling engineers.",
"contentKind": "specification",
"status": "published",
"tags": [
"webmcp",
"web",
"tools",
"draft"
],
"updated": "2026-08-28T00:00:00.000Z",
"published": "2026-08-28T00:00:00.000Z",
"authority": "W3C Web Machine Learning Community Group",
"revision": "2026-08-26 draft",
"maturity": "draft community group report",
"structure": "Web API and HTML/JavaScript tool exposure with web-platform tests",
"sourceId": "S-074",
"canonicalUrl": "https://webmachinelearning.github.io/webmcp/",
"summary": "Let websites expose structured tools to compatible user agents.",
"roles": [
"website",
"user-agent",
"agent"
],
"aliases": [
"Web Model Context Protocol",
"site tools"
],
"html": "/specs/webmcp",
"markdown": "/specs/webmcp.md",
"json": "/api/v1/specs/webmcp.json"
}
]
}