money.barker由 barker.money 发布官方发布者v1.0.4更新于 Nov 2, 2026
Barker's real-time stablecoin yield index + AI advisor + non-custodial deposit/redeem (x402 paid).
远程 MCP 服务器，为助手提供实时稳定币收益指数、市场数据、收益推荐，以及按次付费的未签名存入/赎回交易。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/money.barker%2Fstablecoin-yield/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"stablecoin-yield": {
"type": "http",
"url": "https://mcp.barker.money/mcp"
}
}
}Barker — remote MCP server for real-time stablecoin yield: live APY index, AI yield advisor, risk signals, and non-custodial deposit/redeem execution — 11 tools, x402 pay-per-call. Plus the official Barker agent skill suite.
[License: MIT] [MCP Registry] [Payment: x402]
Powered by Barker — Yield Primitive for the Agent Economy. Every agent touching stablecoins eventually plugs in.
接入 Agent 经济的稳定币收益底座 → barker.money
The hosted server is a streamable-http MCP endpoint — stateless, no signup, no API key. Payment happens per call via x402 (see Payment).
Claude Code
Hermes Agent — add to ~/.hermes/config.yaml (takes effect in new sessions):
Cursor / Cline / any MCP host — add to your MCP config:
Smoke test from a terminal (no client needed):
12 tools in three layers. Prices are per call, settled via x402.
Data
Judgment
Execution (non-custodial)
Barker never broadcasts and never holds funds. The agent verifies the returned calldata (calldata_amount_base_units enables byte-level verification) and the user's own wallet signs. Vault shares always go to the signer — receiver is not a parameter. Same-chain only.
Calling a tool without payment returns an HTTP 402 challenge. Settle it (e.g. via an OKX OnchainOS or wallet payment skill, or any x402 buyer client) and retry with the payment header.
Full working buyer — pay → quote → verify → sign → broadcast → confirm shares:
See examples/x402-execution-buyer.mjs — ~200 lines, copy the safety checks into your own agent.
⚠️ Self-host only. The bundled
barker-mcpstdio server wraps the resource endpoints as local tools, for operators self-hosting against their ownBARKER_API_BASE. Barker's hosted tools are served via the remote MCP above.
Then restart Claude Code. Three tools become available:
Smoke test outside of an agent host:
10 ready-made skills that call the MCP tools with tuned prompts, triggers and guardrails.
Then restart Claude Code (or your agent runtime) to activate. Override the install dir with --target <dir> or $BARKER_SKILLS_DIR.
Updating often? Install the CLI globally so you can drop the npx prefix:
Skills in this repo follow the agentskills.io open standard, so they install into Hermes Agent as-is:
Skills take effect in new Hermes sessions. Pair them with the remote MCP endpoint (see Connect) so tool calls resolve. Hermes has no built-in payments: route the x402 pay-per-call through an x402-capable payment skill, funded from a dedicated low-balance payments wallet — never your main wallet key. tools/list and discovery stay free.
npx skills add okx/plugin-store --skill <skill-name>.claude-plugin/plugin.json, compatible with the Claude Code plugin marketplacegit clone https://github.com/barkermoney/barker-mcp.git && cp -r barker-mcp/skills/<skill-name> ~/.claude/skills/barker_vault_position reads a wallet's public on-chain vault balance for an address the agent explicitly passes).## Security: External Data Boundary section instructing consuming LLMs to treat all API response strings as untrusted data, not instructions.All responses are JSON with { success, data, ... }. APY and share_pct fields are decimals (0.0523 = 5.23%, 0.4250 = 42.5%) — multiply by 100 for display.
Agent discovery: https://api.barker.money/llms.txt
Q: How often is the data updated? A: Real-time. The yield index reflects live stablecoin yield data.
Q: Do I need an API key?
A: No. Agents call the barker_* tools via the remote MCP — payment is per call via x402, no account or key required.
Q: What stablecoins are covered? A: All stablecoins on the market — USDT, USDC, DAI, USDS, USDe, sUSDe, FDUSD, GHO, crvUSD, PYUSD, sDAI, frxUSD, TUSD, BUSD, LUSD, DOLA, MIM, FRAX, USDs, USDX, RLUSD, USDY, BUIDL, and more. If a stablecoin exists, Barker covers it.
Q: What chains are supported? A: All chains — Ethereum, BSC, Arbitrum, Base, Polygon, Optimism, Avalanche, Solana, Sui, Aptos, Sei, Mantle, Scroll, zkSync, Linea, Blast, Mode, Manta, and more. Barker has the most comprehensive multi-chain coverage in the market.
Q: Is this financial advice? A: No. All skills provide educational information only, not financial advice. Always DYOR.
Q: Where can I find the best stablecoin yields?
A: Use the stablecoin-yield-radar skill or visit barker.money for the full interactive yield map.
Q: How does Barker compare to DeFiLlama or CoinGecko? A: Barker is stablecoin-only and indexes real-time stablecoin yield in a single index. DeFiLlama focuses on on-chain TVL; CoinGecko focuses on token prices. Barker is the specialized yield index for stablecoins.
Barker is the Yield Primitive for the Agent Economy — the default routing layer that any agent (or app, or human) calls when it needs to answer "where should this stablecoin sit?". We index real-time stablecoin yield, surfaced as a map for humans browsing and as MCP / agent-callable endpoints for autonomous agents. Stablecoins only. Agents get a real-time stablecoin yield index, an AI yield advisor, non-custodial execution, and risk signals via the MCP; the interactive map is browsable by humans at barker.money.
https://mcp.barker.money/mcphttps://api.barker.money/llms.txt (public)zuoyeweb3 (founder), royrzguo (engineering) — both authorized Barker team membersMIT © 2026 Barker
来源：README.md，提交 e1be678
Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'. (paid: $0.001 per call via x402)
sortassetchainlimitBarker's stablecoin market snapshot: total market cap, yield-bearing cap, asset distribution, chain distribution. Use for 'stablecoin market cap', 'USDT market share', '稳定币市场份额'. share_pct fields are decimals (0.425 = 42.5%). (paid: $0.001 per call via x402)
无需输入参数。
Barker's historical APY trend for stablecoins vs. US Treasury benchmark over a lookback window (7–180 days). Use for 'DeFi vs treasury', 'is stablecoin APY going up', 'crypto yield trend', '稳定币利率走势'. (paid: $0.001 per call via x402)
daysFLAGSHIP: 'Where should I park my stablecoins right now?' Returns a ranked top-N recommendation across Barker's DeFi yield index (500+ protocols) with data-derived reasons and risk flags per pick (APY vs market median, TVL depth, incentive-dependence, lock terms). Use for 'best place for my USDC', '钱放哪收益最好', 'recommend stablecoin yield with low risk'. APY unit: percent (6.2 = 6.2%). (paid: $0.03 per call via x402)
riskassetchainlimitmin_tvlFull single-pool dossier from Barker's index by pool_uid: all APY components (percent unit), TVL, terms, execution capability, reward breakdown. Use after barker_defi_vaults / barker_yield_advisor to inspect one pool. (paid: $0.005 per call via x402)
pool_uid必填Per-pool APY/TVL time series from Barker's index (default 30d, APY percent unit) for trend and volatility analysis of one pool_uid. Use for 'is this pool's APY stable', '这个池子收益稳不稳'. (paid: $0.005 per call via x402)
dayspool_uid必填Fuzzy search Barker's pool index by keyword (protocol name / pool name / asset). Resolves natural-language pool references to pool_uid for the detail/history tools. (paid: $0.001 per call via x402)
limitkeyword必填Barker's cross-chain route availability for a stablecoin from a given chain (bridge/venue coverage). Use for 'bridge USDC from arbitrum', '跨链路径'. (paid: $0.01 per call via x402)
symbol必填from_chain必填EXECUTION DISCOVERY: which stablecoin vaults in Barker's index support direct deposit/redeem through barker_execution_quote. Returns executable pools with adapter support, live deposit capacity (is_full) and APY/TVL. Call this before barker_execution_quote — every pool listed here can be quoted, and its pool_uid is the exact string that tool expects (its vault_token_address works there too). Skip this call entirely if you already know the vault contract address. All parameters are optional: call with no arguments to get the top executable pools across every asset. APY unit: decimal (0.05 = 5%). Use for 'which pools can my agent actually deposit into', '哪些池子能直接存'. (paid: $0.01 per call via x402)
assetchainlimitqueryactionmin_tvlEXECUTION QUOTE (non-custodial): buy an unsigned, ready-to-sign transaction that deposits into or redeems from a stablecoin vault. Returns transaction_request {chainId,from,to,data,value} + route + risk summary + approval info. Barker NEVER broadcasts and never holds funds — return the transaction to YOUR user's wallet to sign; vault shares always go to signer_address (receiver is not a parameter). Same-chain only (self/portals adapters). pool_uid takes EITHER a Barker pool_uid OR the vault contract address — if you already know the vault address, quote directly, no discovery call needed. Flow: barker_yield_advisor → barker_executable_pools → this tool → your user signs. Asset identity is resolved by the selected pool; symbols and underlying-asset token addresses are never accepted as identity (pass the VAULT contract, not the asset contract). If a pool has multiple possible underlying assets, the backend rejects ambiguity instead of guessing. Use for 'deposit 1000 USDC into this vault', '帮我把 USDC 存进这个池子（自己签名）'. (paid: $0.05 per call via x402)
actionamountchain_idpool_uid必填slippagesigner_address必填amount_base_units必填VAULT POSITION (on-chain read): current redeemable value of a wallet's ERC-4626 vault position. Pass the pool_uid (from barker_executable_pools / barker_execution_quote) and the wallet address; Barker resolves the vault contract and reads balanceOf + convertToAssets directly on-chain, returning shares and current_value in the vault's underlying asset (value_asset, e.g. USDC). Barker does not store your deposit baseline — record the principal you deposited yourself; earned = current_value - your net deposits. Use after depositing via barker_execution_quote to monitor a position: 'how much is my vault position worth now', '我存进金库的 USDC 现在值多少'. (paid: $0.001 per call via x402)
address必填pool_uid必填Papertrade (HyperEVM) hedge-farm snapshot: PAPER mint rate per USD lost, BTC/ETH mid prices and open-interest headroom, Barker's hosted fee and size limits. Pass margin (USDC per leg) with optional leverage / stop_pct / take_pct / budget to get a cost estimate (USDC per PAPER, loss and PAPER per stop). Read-only; the user starts the strategy at app.barker.money/paper. (paid: $0.001 per call via x402)
budgetmarginmarketleveragestop_pcttake_pct已满足适用检查项的 100%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
Endpoint: https://mcp.barker.money/mcpRegistry: money.barker/stablecoin-yield (Official MCP Registry)Transport: streamable-http (stateless)claude mcp add --transport http barker https://mcp.barker.money/mcpmcp_servers: barker: url: "https://mcp.barker.money/mcp"{ "mcpServers": { "barker": { "type": "streamable-http", "url": "https://mcp.barker.money/mcp" } }}curl -X POST https://mcp.barker.money/mcp \ -H 'Content-Type: application/json' \ -H 'Accept: application/json, text/event-stream' \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'Facilitators: OKX · Coinbase CDP · Circle GatewaySettlement: USDT0 / USDC on X Layer, Base, Ethereum, Polygon, Arbitrumnpm i viemread -rs PRIVATE_KEY && export PRIVATE_KEYnode examples/x402-execution-buyer.mjsunset PRIVATE_KEY# Register with Claude Code (user scope, persists across sessions)claude mcp add -s user barker -- npx -y -p @barkermoney/skills barker-mcpnpx -p @barkermoney/skills barker-mcp# speaks MCP over stdio; pipe JSON-RPC frames to interact# Install all 10 skills into ~/.claude/skills/npx @barkermoney/skills install --all
# Or pick specific onesnpx @barkermoney/skills install stablecoin-yield-radar yield-strategy-advisor
# Other commandsnpx @barkermoney/skills list # show bundled + installednpx @barkermoney/skills update # re-install latest of currently installednpx @barkermoney/skills remove <name> # uninstall onenpx @barkermoney/skills --help # full helpnpm install -g @barkermoney/skillsskills install --all # then from any directoryskills update # later, pull latest skill content# Flagship skill straight from this repo (repeat for any skill under ./skills):hermes skills install https://raw.githubusercontent.com/barkermoney/barker-mcp/main/skills/stablecoin-yield-radar/SKILL.md --name stablecoin-yield-radarhermes skills install https://raw.githubusercontent.com/barkermoney/barker-mcp/main/skills/yield-strategy-advisor/SKILL.md --name yield-strategy-advisor
# Or install the whole suite manually:git clone https://github.com/barkermoney/barker-mcp.gitcp -r barker-mcp/skills/* ~/.hermes/skills/