@syenite/mcp

Composable DeFi intelligence for AI agents — swap routing, bridge execution, yield analysis, lending rates, prediction markets, risk assessment, and wallet operations via the Model Context Protocol.

One endpoint. 30+ chains. No API key required.

Quick Start

Claude Desktop / Cursor (remote)

{
  "mcpServers": {
    "syenite": {
      "url": "https://syenite.ai/mcp"
    }
  }
}

npx (local stdio)

{
  "mcpServers": {
    "syenite": {
      "command": "npx",
      "args": ["-y", "@syenite/mcp"]
    }
  }
}

cURL

curl -X POST https://syenite.ai/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "name": "lending.rates.query",
      "arguments": { "collateral": "wBTC" }
    },
    "id": 1
  }'

Tools

Wallet & Gas

| Tool | Description | |------|-------------| | wallet.balances | Native + stablecoin balances across Ethereum, Arbitrum, Base, BNB Chain | | gas.estimate | Live gas prices and per-operation cost estimates. Finds the cheapest chain |

Swap & Bridge

| Tool | Description | |------|-------------| | swap.quote | Optimal swap/bridge quote with unsigned tx calldata. 30+ chains via Li.Fi | | swap.multi | Batch up to 10 swap/bridge quotes in parallel | | swap.status | Track cross-chain bridge delivery |

Yield

| Tool | Description | |------|-------------| | yield.opportunities | Best yield across lending, staking, vaults, savings, basis capture | | yield.assess | Deep risk assessment for a specific yield strategy |

Lending

| Tool | Description | |------|-------------| | lending.rates.query | Borrow/supply rates across Aave v3, Morpho Blue, Spark, Compound V3, Fluid | | lending.market.overview | Aggregate TVL, utilization, rate ranges per protocol | | lending.position.monitor | Health factor, liquidation distance, costs for any address | | lending.risk.assess | Risk assessment for proposed lending positions | | strategy.carry.screen | Screen all markets for positive carry (supply APY > borrow APY) |

Prediction Markets

| Tool | Description | |------|-------------| | prediction.trending | Top Polymarket events by volume — probabilities, liquidity, spread | | prediction.search | Search prediction markets by topic | | prediction.book | Order book depth and spread for an outcome token |

Alerts

| Tool | Description | |------|-------------| | alerts.watch | Register an address for health factor monitoring | | alerts.check | Poll for active alerts | | alerts.list | List all active watches | | alerts.remove | Remove a watch |

How Execution Works

Syenite never holds private keys. swap.quote returns an unsigned transactionRequest with optimal route calldata. The agent or user signs and submits from their own wallet. For cross-chain bridges, use swap.status to track delivery.

Supported Chains

Swap/Bridge: Ethereum, Arbitrum, Base, Optimism, Polygon, BNB Chain, Avalanche, zkSync, Linea, Scroll, and 20+ more.

Lending data: Ethereum, Arbitrum, Base, BNB Chain.

Protocols: Aave v3, Morpho Blue, Spark, Compound V3, Fluid, Venus.

Access

Open access — no API key required. Rate limited to 30 req/min per IP.

• Remote: https://syenite.ai/mcp
• Local: npx @syenite/mcp (stdio transport)
• Docs: syenite.ai/docs

ERC-8004 Registered Agent

Syenite is a registered on-chain agent via ERC-8004 on Base, Ethereum, Arbitrum, and BNB Chain. Supports x402 machine-to-machine payments.

License

MIT