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A.U.G.U.R Synapse · Chain

by agent.maddegen.art · remote · no sign-in to list tools · v2.2.1 · published by art.maddegen.agent

Cross-chain markets: prices, DeFi TVL, yields, stablecoins, gas, order books, perps funding.

Changes · 14
CompareRegistry entry

15 tools: 14 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http synapse-chain https://augur-trade.com/hub/mcp/chain

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

15 tools

Changes things 14Claude Code: ask
  • cex_tickerLive bid/ask/last, 24 h change, volume and range for a pair on Kraken, Coinbase and OKX side by side — with the cross-venue spread.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Live bid/ask/last, 24 h change, volume and range for a pair on Kraken, Coinbase and OKX side by side — with the cross-venue spread. Queries each venue's public ticker in parallel. OKX quotes in USDT when USD is asked for. The cross-venue spread shows arbitrage gaps and which venue is off. When to use: For top-of-book prices; for how much size the book can absorb use orderbook_depth. Price: $0.001 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Exchange prices (Kraken/Coinbase/OKX)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • chain_tvlTotal value locked on every blockchain right now, ranked — or one chain's daily TVL history.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Total value locked on every blockchain right now, ranked — or one chain's daily TVL history. DefiLlama chain TVL. Without "chain": ranking of all chains with token symbol. With "chain": daily TVL history for up to 365 days plus 7 d / 30 d / 90 d change. When to use: For chain-level TVL; for protocols use defi_rankings. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Chain TVL
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • crypto_priceLive USD price and 24 h change for up to 30 crypto assets on any chain — by symbol, CoinGecko id, contract or mint address.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Live USD price and 24 h change for up to 30 crypto assets on any chain — by symbol, CoinGecko id, contract or mint address. Resolves each asset (BTC, "coingecko:ethereum", "base:0x…", a bare 0x address with chain, or a Solana mint) and prices it from DefiLlama's aggregated oracle (confidence score included). Symbols resolve against the top 1,000 coins by market cap first, so "USDC" means the real one; ambiguous symbols list the alternatives. When to use: For current prices by symbol on any chain; for Solana mints by address use price (on the A.U.G.U.R Synapse · Wallets & Risk server, https://augur-trade.com/hub/mcp/risk); for history use price_history. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Crypto prices (any chain)
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • defi_protocolOne DeFi protocol in depth: TVL by chain, TVL trend, fees and revenue (24 h/7 d/30 d), market cap, audits, links.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    One DeFi protocol in depth: TVL by chain, TVL trend, fees and revenue (24 h/7 d/30 d), market cap, audits, links. Look up by name or DefiLlama slug ("aave", "Uniswap", "jupiter"). Combines DefiLlama's protocol list with its fees/revenue summaries. Fuzzy name matches return the best match plus close alternatives. Price: $0.002 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: DeFi protocol profile
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • defi_rankingsTop DeFi protocols by TVL (or 1 d / 7 d TVL change), filterable by chain and category — lending, DEX, liquid staking, bridges, perps… From DefiLlama's full protocol list (~6,000 pr…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Top DeFi protocols by TVL (or 1 d / 7 d TVL change), filterable by chain and category — lending, DEX, liquid staking, bridges, perps… From DefiLlama's full protocol list (~6,000 protocols). Each row: TVL, TVL on the requested chain, 1 h/1 d/7 d change, market cap, category, chains, site. Use for "biggest lending protocols on Base" or "fastest growing DEXes this week". When to use: To rank protocols; for one protocol in depth use defi_protocol. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: DeFi protocol rankings
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • dex_volumesDEX trading volume in the last 24 h / 7 d / 30 d — all chains or one — with the top DEXes and their share and change.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    DEX trading volume in the last 24 h / 7 d / 30 d — all chains or one — with the top DEXes and their share and change. DefiLlama DEX overview. Optionally scoped to one chain. Includes perps with type=perps (derivatives volume) or aggregators. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: DEX volume rankings
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • fear_greedThe Crypto Fear & Greed Index (0–100) now and its history, with the 7 d / 30 d average and how extreme today is.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The Crypto Fear & Greed Index (0–100) now and its history, with the 7 d / 30 d average and how extreme today is. alternative.me index, daily. Up to 365 days of history. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Crypto Fear & Greed
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • fees_revenueWhich protocols and chains earn the most: fees or revenue over 24 h / 7 d / 30 d, filterable by chain — the cash-flow view of crypto.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Which protocols and chains earn the most: fees or revenue over 24 h / 7 d / 30 d, filterable by chain — the cash-flow view of crypto. DefiLlama fees/revenue overview. "fees" = what users paid; "revenue" = what the protocol kept. Ranked, with day-over-day change. Price: $0.002 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Protocol fees + revenue
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • funding_ratesPerpetual funding for a coin on Hyperliquid, OKX and Kraken Futures side by side — per-interval rate and annualized APR — plus open interest and mark price.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Perpetual funding for a coin on Hyperliquid, OKX and Kraken Futures side by side — per-interval rate and annualized APR — plus open interest and mark price. Positive = longs pay shorts. Each venue's rate is normalized to an hourly figure and annualized so they compare directly (OKX settles every 1–8 h, Hyperliquid hourly, Kraken hourly). Use for basis/carry trades or crowding signals. When to use: For one coin across venues; to scan every Hyperliquid market use hyperliquid_markets. Price: $0.003 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Perp funding rates
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • gas_nowWhat a transaction costs right now on 17 EVM chains, Solana and Bitcoin — gwei/priority fee and the USD cost of a transfer and a swap on each.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    What a transaction costs right now on 17 EVM chains, Solana and Bitcoin — gwei/priority fee and the USD cost of a transfer and a swap on each. EVM: base fee + priority fee from the latest block (eth_feeHistory), USD cost of a 21,000-gas transfer and a ~150,000-gas swap (L2s shown before their L1 data fee). Solana: recent prioritization-fee percentiles. Bitcoin: mempool.space recommended sat/vB with USD for a typical 140 vB transaction. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Gas + fees across chains
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • hyperliquid_marketsEvery Hyperliquid perpetual: mark/oracle price, 24 h change and volume, open interest, funding APR, premium — ranked by volume, OI, funding or movers.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Every Hyperliquid perpetual: mark/oracle price, 24 h change and volume, open interest, funding APR, premium — ranked by volume, OI, funding or movers. Live from Hyperliquid's public info API. Filter to one coin or rank the whole board. Funding is hourly on Hyperliquid; apr = hourly × 8,760. Price: $0.002 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Hyperliquid perps
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • orderbook_depthHow much size a market can take: bid/ask depth within ±0.1/0.5/1/2/5%, spread, and the slippage of a $10k/$100k/$1M market order on Kraken, Coinbase or OKX.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    How much size a market can take: bid/ask depth within ±0.1/0.5/1/2/5%, spread, and the slippage of a $10k/$100k/$1M market order on Kraken, Coinbase or OKX. Pulls the full public L2 book and walks it. Use before sizing an order or comparing venue liquidity. slippage is vs. mid price, in basis points; null means the fetched book was too thin for that size. When to use: For liquidity and slippage; for just prices use cex_ticker. Price: $0.003 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Order book depth + slippage
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • price_historyHistorical USD prices for any crypto asset (hourly or daily, up to 365 days) with return, high/low, max drawdown and annualized volatility.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Historical USD prices for any crypto asset (hourly or daily, up to 365 days) with return, high/low, max drawdown and annualized volatility. Same asset resolution as crypto_price. Returns the series plus stats computed from it: total return, high/low with dates, max drawdown, and annualized volatility from log returns. When to use: For past prices and drawdowns; for the current price (on the A.U.G.U.R Synapse · Wallets & Risk server, https://augur-trade.com/hub/mcp/risk) use crypto_price. Price: $0.002 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Price history + volatility
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • stablecoinsEvery stablecoin's circulating supply, 1 d/7 d/30 d supply change, current price and peg deviation — spot depegs and mint/burn flows.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Every stablecoin's circulating supply, 1 d/7 d/30 d supply change, current price and peg deviation — spot depegs and mint/burn flows. DefiLlama stablecoin data across all chains. Filter by symbol or peg type. peg_deviation_pct is measured against the peg (USD, EUR…) using DefiLlama's price. Price: free. Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: Stablecoin supply + peg
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 1Claude Code: allow
  • yield_poolsSearch ~19,000 DeFi yield pools across all chains: filter by chain, protocol, token, stablecoin-only, min TVL; sort by APY or TVL.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Search ~19,000 DeFi yield pools across all chains: filter by chain, protocol, token, stablecoin-only, min TVL; sort by APY or TVL. Base vs reward APY, 30 d mean, IL risk. DefiLlama yields data, refreshed every 15 minutes. Shows APY split into base (organic fees/interest) and reward (token emissions), the 30-day mean APY so an agent can spot unsustainable spikes, impermanent-loss risk, exposure (single/multi) and DefiLlama's up/down prediction. Price: $0.003 per call (10 free/day; after that a payment-required result lists x402 options). Errors: returns isError with a message for invalid input or an upstream failure (not charged).

    Annotations the server declares

    • title: DeFi yield finder
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 2.2.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http synapse-chain https://augur-trade.com/hub/mcp/chain

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__synapse-chain__yield_pools"
    ],
    "ask": [
      "mcp__synapse-chain__crypto_price",
      "mcp__synapse-chain__price_history",
      "mcp__synapse-chain__defi_rankings",
      "mcp__synapse-chain__defi_protocol",
      "mcp__synapse-chain__chain_tvl",
      "mcp__synapse-chain__stablecoins",
      "mcp__synapse-chain__dex_volumes",
      "mcp__synapse-chain__fees_revenue",
      "mcp__synapse-chain__gas_now",
      "mcp__synapse-chain__cex_ticker",
      "mcp__synapse-chain__orderbook_depth",
      "mcp__synapse-chain__funding_rates",
      "mcp__synapse-chain__hyperliquid_markets",
      "mcp__synapse-chain__fear_greed"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as synapse-chain. Review it before you use it.