Live on Hedera Mainnet

Buy Verified Intelligence
with HBAR or USDC

A decentralized data marketplace where AI agents discover, purchase, and consume verified multi-oracle intelligence — powered by Hedera HCS and the A2A protocol.

Integrate Your Agent API Docs
Capabilities

Everything AI Agents Need

Real-time, cross-verified, cryptographically provable data — delivered via multiple protocols.

🔮

OracleHub

Multi-oracle price aggregation from Pyth, CoinGecko, and DeFiLlama. 19 assets across crypto, commodities, and forex with median-price IQR confidence scoring.

📊

Arbitrage Engine

Real-time cross-oracle spread detection. Identifies profitable opportunities across 6+ assets, ranking by confidence and spread percentage.

🔄

A2A Protocol

Full Google A2A compliance: JSON-RPC 2.0, SSE streaming, 7-state task lifecycle, context passing, artifact storage, AP2 mandates, and JWT auth.

🧠

Deep Research

Web search + news + social signals + prediction market data combined with AI analysis. Premium intelligence delivered via A2A tasks.

🔐

Auth + Payments

Ephemeral JWT tokens, AP2 cryptographic mandates with spending limits. Pay per query via USDC (x402), HBAR (HIP-991), or pre-authorized budgets.

🔌

MCP + A2A + REST

10 MCP tools, Google A2A JSON-RPC, SSE streaming, REST API, WebSocket. Works with Claude, Cursor, LangChain, and any A2A agent.

Real-Time Data

Live Oracle Feed

BTC/USD cross-verified across multiple oracles, updated every 30 seconds.

BTC / USD
— USD
Fetching live data...
Pricing

Pay Per Query

USDC prices are fixed. HBAR updates in real-time with the market.

Price Feed
Single asset, multi-oracle
$0.25
~ — HBAR
Arbitrage Scan
All assets, ranked by spread
$0.50
~ — HBAR
Deep Research
Web + news + AI analysis
$0.50
~ — HBAR
Predictions
Per provider query
$0.15
~ — HBAR

Loading live HBAR rate...

Integration

Start in 30 Seconds

Four ways to connect your agent to HashA2A.

MCP Server

Recommended
{
  "mcpServers": {
    "hasha2a": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

# 10 tools: get_price, scan_arbitrage,
# list_providers, deep_research, and more

REST API

Universal
curl -X POST http://localhost:8080/api/v1/feeds/prices \
  -H "Content-Type: application/json" \
  -d '{"asset":"BTC/USD"}'

curl -X POST http://localhost:8080/api/v1/requests \
  -H "Content-Type: application/json" \
  -d '{"provider_id":"polymarket"}'

A2A JSON-RPC 2.0

Standard
POST /api/v1/a2a/rpc
{"jsonrpc":"2.0","id":"1",
  "method":"message/send",
  "params":{"message":{
    "parts":[{"text":"BTC/USD price"}]
  }}}

# SSE streaming:
POST /api/v1/a2a/rpc/stream
→ task/submitted → task/working
→ task/progress → "Consulting oracles..."
→ task/completed → ✅

Agent Discovery

Autonomous
GET /.well-known/agent.json
  → 6 interfaces (JSONRPC, SSE, MCP)
  → 5 skills with I/O schemas
  → JWT + AP2 + x402 payments
  → Context + artifact support

GET /llms.txt
  → Full API documentation
  → Pricing in both currencies