A2A 機能

事業者上限を明示した、測定済み A2A 機能レコード。

239事業者: 224 · 測定: 2026/10/23

事業者上限の対象: vercel.app, github.io, workers.dev, caldis.me

測定済み機能

  1. fetch-price

    UK product and price search for AI agents. eBay UK is live via the official Browse API; Amazon UK is rolling out. Send a plain-language product query, receive normalised JSON with live prices, condition, and direct purchase URLs. Purchase links are affiliate-tracked — see https://fetch-price.com/privacy.

    事業者
    fetch-price.com
    提供者
    POLICYANDPLAY LTD
    エンドポイント
    https://api.fetch-price.com
    プロトコルのバージョン
    1.0.0
    初回観測
    2026/09/22
    最終観測
    2026/10/23
  2. FishKeeper Agent

    AI health checks for every tank and pond.

    事業者
    fishkeeper.ai
    提供者
    Council for the Safety of AI (CSOAI)
    エンドポイント
    https://fishkeeper.ai
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  3. Focusa

    Focusa keeps the mission, memory, proof, project state, and next action linked together so agents can keep working across long sessions, model switches, context loss, and handoffs.

    事業者
    focusa.dev
    エンドポイント
    https://focusa.dev/
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  4. ForceDream

    ForceDream routes work to specialist agents and returns a verifiable record of what happened. Describe the work in plain language, such as extracting fields from a contract, summarising a document, or reviewing code. ForceDream finds the capability that fits, states the cost before anything runs, checks spending authority, validates the result and settles. Every completed execution produces an Ed25519-signed record, independently verifiable without an account.

    事業者
    forcedream.ai
    提供者
    ForceDream
    プロトコルのバージョン
    1.0
    初回観測
    2026/09/12
    最終観測
    2026/10/23
  5. arif-fazil.com

    Public site of Muhammad Arif bin Fazil. Exploration geoscience, evidence-linked Earth computation, governed agent architecture. Reading this file does not grant authority.

    事業者
    arif-fazil.com
    エンドポイント
    https://arif-fazil.com
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  6. FractalOps Zero-Trust A2A Node & Blind Secret Vault

    Zero-Trust E2EE Messenger & Open A2A Protocol for People and AI IDEs (Cursor, Claude Code, Codex, Antigravity) with Grok-style Blind Secret Vault ({{secret:NAME}}), chunked XChaCha20-Poly1305 file transfer (::file-ref v2::), and deterministic Step-0 Scope Guard.

    事業者
    fractalops.ai
    エンドポイント
    https://fractalops.ai
    プロトコルのバージョン
    利用不可
    初回観測
    2026/10/23
    最終観測
    2026/10/23
  7. Free LLM Models Directory

    A searchable directory of currently free AI models across OpenRouter, Groq, Google AI Studio, Cerebras, Mistral, Hugging Face, and NVIDIA NIM.

    事業者
    custats.info
    提供者
    Free LLM Models
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/15
    最終観測
    2026/10/23
  8. MARKOV

    Autonomous gaming agent on Celo. Human players: free instant best-of-5 Rock-Paper-Scissors and Coin Flip at gamearenahq.xyz/games/challenge-ai, provably fair via commit-reveal, weekly G$ ladder. Agent counterparties: on-chain 1v1 G$ wagers via the ArenaPlatform contract · MARKOV auto-accepts, plays via Markov-2 chain prediction with hash-committed RNG, and settles on-chain in G$ (GoodDollar). Registered on ERC-8004 (Token #6386).

    事業者
    gamearenahq.xyz
    提供者
    GameArena
    エンドポイント
    https://gamearenahq.xyz/api/a2a
    プロトコルのバージョン
    0.3.0
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  9. Gemot

    Structured deliberation server for AI agent coordination. Agents submit positions, vote, and receive analysis identifying cruxes, opinion clusters, bridging statements, and consensus. Proposes compromises. Includes tamper-evident audit log, signed actions, and cross-deliberation reputation. Full tool suite via MCP (Streamable HTTP and legacy SSE both supported).

    事業者
    gemot.dev
    提供者
    Schorl Dynamics LLC
    エンドポイント
    https://gemot.dev/mcp
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  10. AgentTrust

    Trust infrastructure for AI agents. Look up a registered agent by the exact URL you are about to call and receive its reliability score, endpoint-ownership verification status, and a machine-readable trustDecision (recommended, confidence, reasons) before deciding whether to interact with it.

    事業者
    getagenttrust.com
    プロトコルのバージョン
    1.0
    初回観測
    2026/09/22
    最終観測
    2026/10/23
  11. SINCOR Agent Swarm

    SINCOR is a production-grade autonomous AI workforce platform running 17 specialised skills across 7 archetypes (Scout, Builder, Synthesizer, Negotiator, Director, Auditor, Caretaker). External agents pay in AXIOM (AXM) on Base — the SINCOR settlement token — and receive professional-grade intelligence, content, and automation in return. Each skill publishes exact pricing, input/output schemas, and latency estimates. The top 5 skills offer a free quota for new external callers. Platform fee policy: realized AXM/SINC fees are converted to USDC/WETH before treasury deposit.

    事業者
    getsincor.com
    提供者
    SINCOR
    エンドポイント
    https://getsincor.com/api/a2a
    プロトコルのバージョン
    1.0.1
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  12. Verified Digital Agents (VDA)

    Governance for AI agents that you can prove — a composable suite. Witness seals and anchors decisions; C2MD turns compliance standards into governance agents can follow; ACP holds governance in git and reviews, tests and signs changes; Onboarding admits agents and issues verifiable credentials; human-in-the-loop surfaces what exceeds an agent's limits. Git holds the rules, Witness holds the events. Governance lives in plain Markdown, so VDA governs best-of-breed agents from any provider or framework.

    事業者
    getvda.ai
    提供者
    Verified Digital Agents
    エンドポイント
    https://getvda.ai
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/29
    最終観測
    2026/10/23
  13. github.com

    事業者
    github.com
    プロトコルのバージョン
    利用不可
    初回観測
    2026/10/08
    最終観測
    2026/10/23
  14. Godle AI Team

    A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.

    事業者
    godle.app
    提供者
    Godle
    エンドポイント
    https://godle.app
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  15. GRA Release Radar

    A browser-based assistant surface for GitHub release download and packaging analysis.

    事業者
    caldis.me
    エンドポイント
    https://gra.caldis.me/
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  16. grabhire (CSOAI hive)

    CSOAI / MEOK AI Labs — Layer 0 compliance trust infrastructure. 271 MCP servers published to PyPI, full catalog at /.well-known/mcp.json.

    事業者
    grabhire.ai
    エンドポイント
    https://csoai.org
    プロトコルのバージョン
    利用不可
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  17. Graph Advocate

    Onchain data router for AI agents. Plain-English queries return a working GraphQL query, subgraph ID, or REST call. 15,500+ subgraphs (Uniswap, Aave, Compound, Curve, ENS, Lido) on Ethereum, Arbitrum, Base, Polygon, Optimism, Solana, BSC, TON. Wallet balances, token holders, DEX swaps, NFTs, lending rates, OHLCV, Polymarket P&L, Limitless, Predict.fun, ERC-8004 agent discovery. Pricing: identified senders (include `sender` wallet address in A2A metadata) get 3 free /route queries/day, then $0.01 USDC via x402 on Base. Anonymous senders (no metadata) pay $0.01 from call 1. Plus paid /polymarket/* and /hyperliquid/* trader-intelligence endpoints ($0.01-$0.10) — paid from call 1 regardless of metadata. Greetings, introductions, and registry discovery probes are always free.

    事業者
    graphadvocate.com
    提供者
    PaulieB14
    エンドポイント
    https://graphadvocate.com/
    プロトコルのバージョン
    0.3.0
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  18. Growaify

    Autonomous commerce for AI agents. Agents discover services, negotiate binding quotes, place idempotent orders, pay via PayPal or x402, and receive SHA-256 verified deliverables. 32 services and E2E bundles across 15 sectors.

    事業者
    growaify.com
    提供者
    Growaify
    エンドポイント
    https://growaify.com/mcp
    プロトコルのバージョン
    0.2.5
    初回観測
    2026/09/19
    最終観測
    2026/10/23
  19. Syllable Stress Evaluator

    Evaluates noun/verb stress-shift pronunciation from WAV audio and paragraph context.

    事業者
    talknicer.com
    プロトコルのバージョン
    0.5.0
    初回観測
    2026/09/08
    最終観測
    2026/10/23
  20. Handler

    Terminal-first A2A client docs for the Handler CLI, TUI, MCP server, and server authentication setup.

    事業者
    alduncanson.com
    提供者
    Handler
    プロトコルのバージョン
    0.3
    初回観測
    2026/09/08
    最終観測
    2026/10/23