Liquid Agent MCP Server

by liquidagent-api Your server? Claim it

answering

Liquid Agent is answering right now. Last checked 10 min ago. It exposes 30 tools. Last commit 3 Oct 2026.

Money tools for AI agents over x402: USDC bridge to 16 chains, Polymarket data, stocks, USDC gas.

Uptime history 13 days of history · worst day 99%

13 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

434 ms

Response time

average over 24h

Stars

last commit 3 Oct 2026

What changed 12

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 September 2026. No other catalogue keeps this.

11 Oct 2 tools changed the parameters they ask for leads_count, leads_search

11 Oct a tool description was rewritten leads_search

11 Oct a tool disappeared leads_subscribe

10 Oct 3 tools appeared leads_count, leads_search, leads_subscribe

3 Oct 2 tools appeared shop_info, shop_search

3 Oct a tool changed version

30 Sep 2 tools appeared polymarket_price_to_beat, stocks_signals

Liquid Agent missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add liquid-agent --transport http https://api.liquidagent.ai/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "liquid-agent": {
      "url": "https://api.liquidagent.ai/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.liquid-agent]
url = "https://api.liquidagent.ai/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "liquid-agent": {
      "url": "https://api.liquidagent.ai/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "liquid-agent": {
      "url": "https://api.liquidagent.ai/mcp"
    }
  }
}

Available tools 30

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

stocks

stocks_basket

Free. The on-chain tokenized US stock index on Base (NVDA, META, AAPL, GOOGL): live prices, fees, how to buy from $1.

stocks_buy

Free. Invest USDC into your vault from $1 (USDC 6 decimals: "1000000" = $1). Easiest: set usePermit=true with owner, sign the returned typedData off-chain (free), then call again with permitDeadline + permitSignature to get ONE deposit transaction. Without a permit you get two transactions (approve, then deposit). Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds.

stocks_buy_quote

Free. Preview buying the tokenized stock basket: shares you would get and the fee for a USDC amount (USDC 6 decimals: "2000000" = $2).

stocks_create_vault

Free. Opens your own vault for the tokenized US stock basket (NVDA, META, AAPL, GOOGL), controlled only by you. Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds. After it confirms, find the vault with stocks_portfolio.

stocks_portfolio

Free. Everything an address owns in the tokenized stock basket: each vault, its shares and current USD value.

stocks_publish_prepare

Returns the x402 payment request to publish a live, shareable portfolio page for a vault for 24 hours ($0.01 USDC on Base or Polygon). Pay it with your own x402 client. This tool does not pay.

stocks_rebalance

Free. Brings your vault back to its target weights (check stocks_vault: rebalanceNeeded). Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds.

stocks_sell

Free. Cash out: redeem basket shares to USDC, or take the raw stock tokens in-kind (works any block, no vault needed, anyone holding shares can sell). Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds.

stocks_send

Free. Transfer your tokenized stock basket shares to any wallet or another agent; they can hold, sell or forward them, no vault needed. Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds.

stocks_set_weights

Free. Sets your vault's target allocation across the 4 stocks in basis points (sum 10000), e.g. [4000, 3000, 2000, 1000]. Default is equal weight. Returns an UNSIGNED transaction {to, data, value, chainId} on Base; nothing happens until you sign it with your own wallet and broadcast it. Liquid never holds keys or funds.

stocks_signals

PAID over x402 inside this tool call ($0.007 USDC on Base, Polygon or Arc): the whole stock basket's rebalancing signal in one call (returns, volatility, RSI, trend, relative strength and inverse-volatility target weights for NVDA, META, AAPL, GOOGL). Call once without payment to get the x402 PaymentRequired, then call again with the signed payment in _meta["x402/payment"].

stocks_signals_prepare

Returns the x402 payment request for basket signals ($0.007 USDC on Base, Polygon or Arc): rebalancing signal, momentum and suggested weights for NVDA/META/AAPL/GOOGL in one call. Pay it with your own x402 client. This tool does not pay.

stocks_vault

Free. A basket vault's value (NAV), holdings, current vs target weights and whether it needs rebalancing.

bridge

bridge_prepare_payment

Returns the exact x402 payment request for a bridge (network, asset, payTo contract, amount, EIP-712 domain) and the URL to call. Pay it with your own x402 client: sign one EIP-3009 authorization and repeat the GET with the PAYMENT-SIGNATURE header. You receive exactly `amount` at your own address on the destination. This tool does not pay or sign anything.

bridge_quote

Free. Exact price to move USDC with the Liquid Bridge (Base to Arc, Arbitrum, OP, Polygon, Avalanche, Unichain, Linea, World Chain, Sonic, Monad, Sei, Ink, HyperEVM, XDC, Plume, Codex; or Arc to Base): what you pay, what you receive (exactly `amount`), the fee breakdown and the ETA. No payment, no wallet needed.

bridge_referral_earnings

Free. Unclaimed Liquid Bridge referral earnings for an address on each chain, and how they are paid out. Earn by adding ref=<your address> to bridge calls: 20% of Liquid's fee.

bridge_routes

Free. Every Liquid Bridge route with its live price for 1 USDC and whether it is open.

bridge_status

Free. Circle attestation and mint state for a bridge, by its burn transaction hash (returned by the bridge call).

leads

leads_count

Free. How many local businesses match a category and place, how many have an email at each grade (A/B/C), the top cities, and the exact price of the next page. Run this before leads_search.

leads_search

PAID over x402 inside this tool call (USDC on Base or Arc, volume pricing per lead: $0.01 for 1-99 leads, $0.0075 for 100-499, $0.005 for 500-1,000, 60% of that without an email; default 10 leads = $0.10; the PaymentRequired quotes the exact total; no leads, no charge): local businesses by category and place with a graded email (A/B/C), a contact name when the email shows one, phone, website, socials and buying signals (no website, booking tool, payment system, hiring). Call once without payment to get the x402 PaymentRequired, then call again with the signed payment in _meta["x402/payment"].

polymarket

polymarket_prepare

Returns the x402 payment request for Polymarket crypto Up/Down data (BTC, ETH, SOL, XRP; 5m and 15m; $0.004 USDC on Base, Polygon or Arc): the OFFICIAL price to beat for the live 5m or 15m window (matched to the cent against Polymarket's results), the live Chainlink price and its distance from the price to beat, seconds left, token ids and market prices. Pass start (unix) for a past window's official outcome. First call free: add ?free=1 to the URL for one live answer at no charge (one per agent). Pay it with your own x402 client. This tool does not pay.

polymarket_price_to_beat

PAID over x402 inside this tool call ($0.004 USDC on Base, Polygon or Arc): the OFFICIAL Polymarket price to beat for the live BTC, ETH, SOL or XRP 5m/15m Up/Down window (matched to every decimal against Polymarket), the live Chainlink price and its distance, seconds left, token ids and market prices. Call it once without payment to get the x402 PaymentRequired; your x402 wallet signs it and you call again with the payment in _meta["x402/payment"]. Set free=true for one free answer per agent.

shop

shop_info

Free. What the Mint & Marquee partner shop sells (custom 3D printed figurines, statues, keychains, bag tags; soccer, anime, crypto collections), its product count and price range, and how to search it.

shop_search

PAID over x402 inside this tool call ($0.001 USDC on Arc, Base or Polygon): search the Mint & Marquee partner shop for gifts and collectibles. Returns products with price, photo, a short description and a link to buy. Show the person each product with its link, then the foundWith line once. Call once without payment to get the x402 PaymentRequired, then call again with the signed payment in _meta["x402/payment"].

cctp

cctp_status

Free. Status of ANY Circle CCTP v2 USDC transfer (not only Liquid's) by its burn transaction hash: attestation, whether it was minted on the destination, and exactly how to finish a stuck one (receiveMessage with the message and attestation). Chains: Ethereum, Avalanche, OP Mainnet, Arbitrum, Base, Polygon PoS, Unichain, Linea, Sonic, World Chain, Arc.

gas

gas_sponsor_info

Free. How to send a transaction on Base, Polygon or Solana with a wallet that holds USDC but no ETH/POL/SOL: the x402-paid gas sponsor, its price rule (from $0.03) and lanes.

liquid

liquid_guide

Free. Overview of every Liquid Agent service for agents (bridge, stocks, signals, gas sponsor), prices and where the full docs are.

payment

payment_readiness

Free. One call to know if a wallet can pay an x402 endpoint right now: reads the endpoint's 402, checks the wallet's balance on each accepted network, and if it cannot pay, returns the cheapest fix (e.g. move USDC from the chain where it sits, with the exact bridge_quote arguments).

usdc

usdc_balances

Free. USDC balance (and native gas balance) of an address on every CCTP chain at once: Ethereum, Avalanche, OP Mainnet, Arbitrum, Base, Polygon PoS, Unichain, Linea, Sonic, World Chain, Arc. Use it before paying or bridging to see where your money is.

x402

x402_check

Free. Decode any x402 payment request (from a URL, a PAYMENT-REQUIRED header or a 402 body) into plain English with warnings, and optionally verify a signed payment (PAYMENT-SIGNATURE / X-PAYMENT header) the way a facilitator would: recipient, amount, time window, EIP-712 signature against the token's real domain, nonce reuse and balance. Every failed check comes with the fix.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

leads_subscribe

removed 11 Oct 2026

Endpoints

URL	Transport	State	Latency	Checked
https://api.liquidagent.ai/mcp	streamable-http	answering	394 ms	10 min ago

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Liquid Agent — questions

Answers built from our own checks of this server.

What can Liquid Agent do?

It exposes 30 tools, read directly from the server on our last check. Among them: bridge_prepare_payment, bridge_quote, bridge_referral_earnings, bridge_routes, bridge_status, cctp_status and 24 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Liquid Agent mostly used for?

Its tools cluster around stocks, bridge and leads. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Liquid Agent working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 434 ms. The bar chart above shows every period we have measured.

Did Liquid Agent ever remove tools?

Yes. leads_subscribe is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect Liquid Agent?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Liquid Agent need an API key?

No. Liquid Agent completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 30 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Liquid Agent?

It answers our handshake in 434 ms on average, which is faster than 31% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Liquid Agent open source?

Yes — it is published under the MIT licence, 0 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.