0.6.2npm · @barkermoney/skills · latest release
Observed 2026-08-22T07:31:39.583Z using mcpSecurity-inventory. Protocol 2025-06-18.
| Tool | Category | Risk |
|---|---|---|
barker_agent_payment_statsAgent-economy payment metrics from Barker's cross-protocol index. x402 (Base) is on-chain verifiable; Virtuals ACP, Google AP2, Stripe-Tempo MPP, OKX MPP, and Mastercard AP4M are self-reported claims. Separates real vs nominal volume by filtering out wash/noise sellers (avg_tx_usd < $0.02 with a very high tx-per-buyer ratio). Three views: 'summary' (hero KPIs + cross-protocol comparison table), 'trend' (daily tx / nominal & real volume / buyers), 'leaderboard' (top x402 sellers/endpoints by revenue). Use for 'x402 volume', 'agent payment stats', 'agent economy metrics', 'how big is x402', 'top x402 sellers', 'real vs nominal agent GMV', '智能体支付', 'x402 交易量'. All *_share_pct and noise_share_pct fields are percentages (77.0 = 77%); volume fields are USD.Input schema{
"type": "object",
"properties": {
"view": {
"type": "string",
"enum": [
"summary",
"trend",
"leaderboard"
],
"description": "Which view — 'summary' (default): hero KPIs + protocol comparison; 'trend': daily time series; 'leaderboard': top sellers."
},
"days": {
"type": "integer",
"minimum": 1,
"maximum": 90,
"description": "Trend window in days (view=trend only) — default 30, max 90"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 100,
"description": "Row count (view=leaderboard only) — default 20, max 100"
},
"sort": {
"type": "string",
"enum": [
"volume",
"tx"
],
"description": "Leaderboard sort key (view=leaderboard only) — 'volume' (default) or 'tx'"
}
},
"additionalProperties": false
} | — | — |
barker_defi_vaultsQuery 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'.Input schema{
"type": "object",
"properties": {
"asset": {
"type": "string",
"description": "Stablecoin symbol (lowercase): usdt, usdc, dai, usde, usds, fdusd, gho, crvusd, pyusd, sdai, frxusd, tusd, lusd, dola, mim, frax, etc."
},
"chain": {
"type": "string",
"description": "Chain name (lowercase): ethereum, bsc, arbitrum, base, polygon, optimism, avalanche, solana, sui, aptos, sei, mantle, scroll, zksync, linea, blast, mode, manta, etc."
},
"sort": {
"type": "string",
"enum": [
"apy",
"tvl"
],
"description": "Sort key — default 'apy'"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 100,
"description": "Row count — default 50, max 100"
}
},
"additionalProperties": false
} | — | — |
barker_market_overviewStablecoin 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%).Input schema{
"type": "object",
"properties": {},
"additionalProperties": false
} | — | — |
barker_market_trendHistorical 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'.Input schema{
"type": "object",
"properties": {
"days": {
"type": "integer",
"minimum": 7,
"maximum": 180,
"description": "Lookback window in days — default 30"
}
},
"additionalProperties": false
} | — | — |
Compared with initial baseline using full_baseline.
| Risk | Change | Subject |
|---|---|---|
| No material changes recorded. | ||
| Severity | Finding | Advisory |
|---|---|---|
| No confirmed vulnerability is published for this version. | ||
Artifact SHA-256: 0f2c1cad6a1c52cbb86c2ea2792d107ed85f9243f2d5ebe94dd101618f1e3622
Scanner: mcp-proof-engine 0.1.0.