Fivebar MCP
An MCP server for AI agents that trade, providing token prices, risk checks, swap quotes, unsigned swap transactions, and wallet holdings across Robinhood Chain, Solana, Base, Ethereum, and Arbitrum. It also offers a wash-screened x402 index and agent board.
Endpoint and access
No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.
https://fivebar.xyz/mcpWhat you can do with it
- Check token risk before buying
- Get swap quotes with fees
- Build unsigned swap transactions
- View wallet holdings on multiple chains
Source and maintenance
- Maintenance checked
Protocol and capabilities
- Server
- fivebar 0.2.0
- MCP protocol
- 2025-06-18
- Tools
- 13 advertised
- Resources
- Not advertised
- Resource templates
- Not advertised
- Prompts
- 3 advertised
{
"tools": {
"listChanged": false
},
"prompts": {
"listChanged": false
}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
13 advertised
stocks_list — Robinhood stock tokens
List the tokenized stocks Robinhood issues on Robinhood Chain (about 100: AAPL, TSLA, NVDA...): symbol, name, token address, shares-per-token multiplier, which trading sessions they trade in, and whether a Chainlink price feed exists. Filter with query (symbol or name).
{
"type": "object",
"properties": {
"limit": {
"type": "number",
"description": "Default 200"
},
"query": {
"type": "string",
"description": "Part of a symbol or company name, e.g. 'NVDA' or 'apple'"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}stock_quote — Stock token price
Price of a Robinhood stock token on Robinhood Chain, by symbol (e.g. AAPL) or token address: the Chainlink feed price per token (dividends and splits included through the multiplier), how fresh it is, the on-chain DEX price where a Uniswap pool exists, and which sessions it trades in. Equity feeds follow US market hours 24/5 and hold their last price when markets are closed.
{
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker like AAPL, or the token address"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}token_quote — Token price (memecoins and any ERC-20)
Price and market cap of any token by its contract address. A 0x address is read on Robinhood Chain by default (Uniswap v3 and v4 pools; when the best pool is thin, under $2,000 in range, or missing, the price comes from a $10 buy routed by 0x and a warning says so); pass chain base, ethereum or arbitrum for those chains. A Solana mint is priced from a small USDC buy routed across Solana DEXes.
{
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"robinhood",
"base",
"ethereum",
"arbitrum",
"solana"
],
"type": "string",
"description": "For 0x addresses: default robinhood"
},
"address": {
"type": "string",
"description": "Token contract address (0x...) or a Solana mint"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}swap_quote — Swap quote (best route, fees shown)
What swapping one token for another would give right now, on Robinhood Chain (default), Solana (SOL, USDC, USDT and memecoins by mint address; picked automatically for those), Base, Ethereum or Arbitrum (ETH, WETH, USDC, USDT or a token address; pass chain). EVM chains: the best route across Uniswap v2/v3/v4, PancakeSwap, SushiSwap, Aerodrome, Curve and other DEXes. Solana: the best route across Solana DEXes. Routed by 0x, with the amount out and the minimum after slippage, the USD value, and every fee shown separately (Fivebar's 0.5%, the router's fee where it applies, and network gas). Flags token taxes and, if you pass your wallet as taker, a missing balance or approval. xStocks are coming soon: use stock_quote for their prices. Quote only: nothing is signed or sent; to swap, use swap_build.
{
"type": "object",
"required": [
"sell",
"buy",
"amount"
],
"properties": {
"buy": {
"type": "string",
"description": "Token to buy, same forms as sell"
},
"sell": {
"type": "string",
"description": "Token to sell. Robinhood Chain: ETH, USDG, WETH or a token address. Solana: SOL, USDC, USDT or a mint address"
},
"chain": {
"enum": [
"robinhood",
"solana",
"base",
"ethereum",
"arbitrum"
],
"type": "string",
"description": "Default robinhood (solana when given Solana tokens)"
},
"taker": {
"type": "string",
"description": "Optional: the wallet that would swap (0x address, or a Solana wallet on solana)"
},
"amount": {
"type": "string",
"description": "How much of the sell token, in whole units, e.g. '100' or '0.25'"
},
"slippage_pct": {
"type": "number",
"description": "Max slippage in percent, default 1"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}token_risk — Token risk check (before you buy)
What could go wrong buying a token, by contract address, on Solana, Robinhood Chain, Base, Ethereum or Arbitrum. Solana: whether someone can still mint more or freeze holders, Token-2022 traps (transfer fees, a permanent delegate, transfer hooks), and how concentrated the top holders are. EVM: buy and sell taxes and whether the contract still has an owner. Both: a $100 buy-then-sell test through the router (can you sell it, and what's lost). Returns a verdict (high, caution or low) and the reasons. Not a guarantee.
{
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"robinhood",
"solana",
"base",
"ethereum",
"arbitrum"
],
"type": "string",
"description": "Default robinhood for 0x addresses, solana for mints"
},
"address": {
"type": "string",
"description": "The token's contract address (0x...) or Solana mint"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}swap_build — Swap: build the transactions to sign
Build a swap for your own wallet to sign and send, on Robinhood Chain, Base, Ethereum, Arbitrum or Solana. Returns a firm quote (amount out, minimum, every fee) and the unsigned transactions in order. EVM chains: an exact-amount approval when needed, then the swap. Solana: one versioned transaction (base64) your wallet pays for and signs. Fivebar's 0.5% fee is paid inside the swap; Fivebar never sees your keys or holds your funds. Wallets on the US sanctions list are refused. xStocks are coming soon.
{
"type": "object",
"required": [
"sell",
"buy",
"amount",
"taker"
],
"properties": {
"buy": {
"type": "string",
"description": "Token to buy, same forms as sell"
},
"sell": {
"type": "string",
"description": "Token to sell: ETH, WETH, USDG (Robinhood Chain), USDC or USDT (Base, Ethereum, Arbitrum), SOL, USDC, USDT or a mint (Solana), or a token address"
},
"chain": {
"enum": [
"robinhood",
"solana",
"base",
"ethereum",
"arbitrum"
],
"type": "string",
"description": "Default robinhood (solana when given Solana tokens)"
},
"taker": {
"type": "string",
"description": "Your wallet address (0x..., or a Solana wallet): it signs and sends the transactions and receives the tokens"
},
"amount": {
"type": "string",
"description": "How much of the sell token, in whole units, e.g. '100' or '0.25'"
},
"slippage_pct": {
"type": "number",
"description": "Max slippage in percent, default 1"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}eth_price — ETH price
ETH price in USD on Robinhood Chain (Chainlink feed, or the deepest WETH/USDG pool if the feed is unavailable).
{
"type": "object",
"properties": {},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}wallet_holdings — Wallet holdings (every token, 5 chains)
Every token a wallet holds, with USD values, across Robinhood Chain, Base, Arbitrum and Ethereum for a 0x address (or one chain with chain), or on Solana for a Solana address. Includes ETH or SOL, stablecoins, Robinhood stock tokens and memecoins. Values: $1 for stablecoins, the ETH price for ETH and WETH, Chainlink for stock tokens, Uniswap pools on Robinhood Chain (a router buy when the pool is thin), a small buy routed by 0x elsewhere. The biggest positions carry a quick risk verdict (run token_risk for the full check). Tokens that look like airdropped spam are hidden and counted; tokens with no route to sell are listed apart. If the router is busy, a holding is valued from its last good quote (at most 15 minutes old) and marked priceAsOf.
{
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"enum": [
"all",
"robinhood",
"base",
"arbitrum",
"ethereum",
"solana"
],
"type": "string",
"description": "Default: all four EVM chains for a 0x address, solana for a Solana address"
},
"address": {
"type": "string",
"description": "Wallet address: 0x... or a Solana wallet"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}perps_markets — Perpetual futures (Hyperliquid)
Perpetual futures markets on Hyperliquid: mark price, 24h change, funding (hourly and yearly), open interest, 24h volume and max leverage. Sort by volume, open interest or funding; filter by coin.
{
"type": "object",
"properties": {
"sort": {
"enum": [
"volume",
"openInterest",
"funding"
],
"type": "string",
"description": "Default volume"
},
"limit": {
"type": "number",
"description": "Default 20, max 100"
},
"query": {
"type": "string",
"description": "Coin, e.g. BTC"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}perp_quote — One perp market (Hyperliquid)
One Hyperliquid perpetual market by coin (e.g. BTC, ETH, HYPE): mark and oracle price, 24h change, funding, open interest, volume and max leverage.
{
"type": "object",
"required": [
"coin"
],
"properties": {
"coin": {
"type": "string"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}x402_stats — x402 payments on Robinhood Chain
Fivebar's index of x402 payments (USDG transferWithAuthorization) on Robinhood Chain: the last 24 hours and recent days, screened before they count. Volume that doesn't pass is split two ways: flaggedUsd shows a wash pattern (a seller paying itself, circular payments, two wallets paying 90%+ of a seller); tooFewBuyersUsd only went to sellers with under 10 distinct buyers, which isn't evidence of washing, just not enough to judge yet. topSellers lists sellers that passed. Updated every 3 hours.
{
"type": "object",
"properties": {},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}agent_lookup — Agent record (Fivebar board)
Look up an AI agent on Robinhood Chain by ERC-8004 agent ID, wallet address or name: its owner and agent wallet, Fivebar Score (as a seller: how many independent operators pay it, with bundled buyer wallets counted once; as a buyer: how many real sellers it pays; 'not scored yet' with progress when the evidence is thin, never a 0), screened x402 record (passed, not counted yet, removed for wash patterns), flags and clusters. If a known operator runs it, says so and points to the $1 full operator report (a separate x402 call). Use before paying or trusting an agent.
{
"type": "object",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"description": "Agent ID (e.g. 7622), wallet address or name"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}check_seller — Check a seller before paying
Before paying an x402 seller on Robinhood Chain, check its address against Fivebar's wash screen: whether it's among the sellers whose payments passed in the last 24 hours, its buyers and volume, and its agent record if it's a registered agent.
{
"type": "object",
"required": [
"address"
],
"properties": {
"address": {
"type": "string"
}
},
"additionalProperties": false
}{
"readOnlyHint": true,
"openWorldHint": true
}Prompts
3 advertised
trade — Trade a token safely
Buy or sell a token through the Fivebar routine: find it by address, check its risk, quote with every fee, then build the swap for your wallet to sign.
- token
- The token's contract address (0x...) or Solana mint (required)
- amount
- How much to spend or sell, e.g. '25 USDG' or '0.01 ETH' (required)
- side
- buy or sell (default buy)
- chain
- robinhood, base, ethereum, arbitrum or solana (default: robinhood for 0x addresses)
- wallet
- Your wallet address, which will sign
check-token — Is this token safe?
Look a token up and check it for rugs, honeypots, taxes and thin liquidity, without trading.
- token
- The token's contract address (0x...) or Solana mint (required)
- chain
- robinhood, base, ethereum, arbitrum or solana
my-wallet — What do I hold?
Every token a wallet holds across five chains, valued at what selling would get now, with risk flags and airdrops to leave alone.
- wallet
- A 0x wallet or a Solana wallet (required)
- chain
- Optional: one chain instead of all
Resources
Not advertised
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 506 ms
- 95th percentile latency
- 506 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 506 ms · metadata changed · 13 tool(s), 3 prompt(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http fivebar-mcp https://fivebar.xyz/mcpCodex
codex mcp add fivebar-mcp --url https://fivebar.xyz/mcpCursor
{
"mcpServers": {
"fivebar-mcp": {
"url": "https://fivebar.xyz/mcp"
}
}
}Cline
{
"mcpServers": {
"fivebar-mcp": {
"type": "streamableHttp",
"url": "https://fivebar.xyz/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"fivebar-mcp": {
"type": "http",
"url": "https://fivebar.xyz/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http fivebar-mcp https://fivebar.xyz/mcpClaude Desktop
{
"mcpServers": {
"fivebar-mcp": {
"url": "https://fivebar.xyz/mcp"
}
}
}Windsurf
{
"mcpServers": {
"fivebar-mcp": {
"serverUrl": "https://fivebar.xyz/mcp"
}
}
}Let your agent find its tools
Find servers like Fivebar MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.