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Syenite — DeFi MCP Server for AI Agents

The complete DeFi interface for AI agents via the Model Context Protocol (MCP). One endpoint covers lending rates across Aave, Morpho, Compound, and Spark; yield discovery; swap and bridge routing across 30+ chains; Polymarket prediction markets; position alerts; and a trust layer that verifies and simulates calldata before signing.

Live at syenite.ai · Docs at syenite.ai/docs


What It Does

Syenite is an MCP server that gives AI agents composable access to DeFi. Agents can query borrow and supply rates across every major lending protocol, find yield opportunities from lending and staking to Pendle fixed-rate markets, route swaps and bridges via LI.FI aggregation, read Polymarket prediction markets and signals, and set webhook alerts for health factor changes. All execution tools return unsigned calldata — the agent passes it to a connected wallet; Syenite never holds keys.


Related MCP server: ProfitSpot MCP

Quick Start

Add to your MCP client config (Claude Desktop, Cursor, or any MCP-compatible agent):

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

Or run locally via stdio:

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

No API key required. Rate limited to 30 requests/minute per IP.

Call syenite.help on the live endpoint for the full tool catalogue.


Tools

Lending Rates

Tool

What it does

Protocols / chains

lending.rates.query

Borrow and supply rates for any asset

Aave v3, Morpho Blue, Spark, Compound v3, Fluid — Ethereum, Arbitrum, Base

lending.market.overview

Aggregate TVL, utilisation, rate ranges per protocol

Same protocols

lending.position.monitor

Health factor, liquidation distance, and cost for any address

Aave v3, Morpho Blue, Spark

lending.risk.assess

Risk assessment for a proposed lending position

Same protocols

strategy.carry.screen

Screen all markets for positive carry (supply APY > borrow APY)

All lending protocols

Lending Execution

Tool

What it does

Protocols / chains

lending.supply

Unsigned calldata to supply collateral

Aave v3, Morpho Blue, Spark, Compound v3

lending.borrow

Unsigned calldata to borrow an asset

Same protocols

lending.withdraw

Unsigned calldata to withdraw supplied collateral

Same protocols

lending.repay

Unsigned calldata to repay a borrow

Same protocols

Yield

Tool

What it does

Protocols / chains

yield.opportunities

Best yield across lending, staking, vaults, Pendle, and savings rate

Aave, Morpho, Spark, Lido, Rocket Pool, Pendle, Yearn, Ethena, Maker DSR

yield.assess

Deep risk assessment for a specific yield strategy

All sources

find.strategy

Composable scan: yield, carry, gas, optional prediction signals

Cross-protocol

Carry Trade

Tool

What it does

Protocols / chains

strategy.carry.screen

Find assets where supply APY exceeds borrow APY across all markets

Aave v3, Morpho, Compound, Spark

Swap & Bridge

Tool

What it does

Protocols / chains

swap.quote

Optimal swap or bridge quote with unsigned tx calldata

LI.FI aggregation — 30+ chains

swap.multi

Batch up to 10 swap/bridge quotes in parallel

Same

swap.status

Track cross-chain bridge delivery

Same

Prediction Markets

Tool

What it does

Protocols / chains

prediction.trending

Top Polymarket events by volume — probabilities, liquidity, spread

Polymarket

prediction.search

Search prediction markets by topic

Polymarket

prediction.book

Order book depth and spread for an outcome token

Polymarket

prediction.signals

Actionable signals: extreme probabilities, volume, mispricing-style flags

Polymarket

Position Alerts

Tool

What it does

Protocols / chains

alerts.watch

Register an address for health factor monitoring; optional webhookUrl for push

Aave v3, Morpho Blue, Spark

alerts.check

Poll for active alerts on watched addresses

Same

alerts.list

List all active watches

alerts.remove

Remove a watch

Wallet & Gas

Tool

What it does

Protocols / chains

wallet.balances

Native and stablecoin balances

Ethereum, Arbitrum, Base, BNB Chain

gas.estimate

Live gas prices and per-operation cost estimates; finds the cheapest chain

Same

Trust Layer

Tool

What it does

Protocols / chains

tx.verify

Verify a contract via Etherscan, Sourcify, and Syenite protocol registry; surfaces risk flags

Any EVM chain

tx.simulate

eth_call simulation: revert detection, gas estimate, native value effects

Ethereum, Arbitrum, Base

tx.guard

Apply your own rules: value caps, allowlists, blocklists, registry requirement

tx.receipt

Post-signing confirmation: status, gas cost, decoded events, token transfers

Any EVM chain


Supported Protocols

Protocol

Category

What Syenite provides

Aave v3

Lending

Supply/borrow rates, position monitoring, execution calldata

Morpho Blue

Lending

Supply/borrow rates, market overview, execution calldata

Compound v3

Lending

Supply/borrow rates, execution calldata

Spark

Lending

Supply/borrow rates, position monitoring, execution calldata

Pendle

Yield

Fixed-rate and yield-tokenisation opportunities via yield.opportunities

LI.FI

Swap/bridge

Aggregated routing across DEXs and bridges on 30+ chains

Polymarket

Prediction markets

Market data, order books, trending events, actionable signals


Supported Chains

Swap and bridge (via LI.FI): Ethereum, Arbitrum, Base, Optimism, Polygon, BNB Chain, Avalanche, zkSync, Linea, Scroll, Gnosis, Fantom, and 20+ more.

Lending rates, execution, and position monitoring: Ethereum, Arbitrum, Base (per protocol availability).

Wallet, gas, and trust simulation: Ethereum, Arbitrum, Base, BNB Chain.


How Execution Works

All execution tools (lending.supply, lending.borrow, lending.withdraw, lending.repay, swap.quote) return unsigned transactionRequest objects — calldata ready to sign. The recommended flow:

  1. Get the calldata from the relevant tool.

  2. Run tx.verify and tx.simulate to check the contract and preview effects.

  3. Optionally run tx.guard to enforce value caps or allowlists.

  4. Sign and submit from your own wallet.

  5. Confirm with tx.receipt.

Syenite never holds private keys or custody of funds.


Agent Integration

Syenite is designed for agent-native DeFi workflows. Every tool is an atomic primitive: agents compose them to achieve outcomes like "find the best lending rate for wBTC, supply collateral, and set a health factor alert."

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

The server.json manifest includes a systemPrompt field that MCP clients can inject to orient the agent on Syenite's capabilities automatically.

Call syenite.help for the full capability overview including all tool parameters.


Yield Sources

Source

Type

Aave v3, Morpho Blue, Spark, Compound v3

Lending supply APY

Lido (stETH/wstETH), Rocket Pool (rETH), Coinbase (cbETH)

Liquid staking

Maker DSR (sDAI)

Savings rate

MetaMorpho (Steakhouse, Gauntlet), Yearn v3

Vaults

Pendle

Fixed-rate / yield tokenisation

Ethena (sUSDe)

Basis capture


Project Structure

syenite/
├── mcp/          # MCP DeFi server (live at syenite.ai/mcp)
├── docs/         # Architecture, planning, research, commercial
├── contracts/    # Solidity vault contracts (parallel build)
├── keeper/       # Keeper agent infrastructure
└── frontend/     # Minimal UI

Status

MCP server is live at syenite.ai/mcp. Swap/bridge across 30+ chains, multi-protocol lending rates and execution, yield discovery, Polymarket prediction markets, carry screening, position alerts, wallet/gas tools, and the tx trust layer are all in production.

npm: @syenite/mcp · Source: github.com/syenite-ai/syenite · Docs: syenite.ai/docs

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license - not found
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quality - not tested
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maintenance

Maintenance

Maintainers
Response time
Release cycle
Releases (12mo)
Commit activity

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