# Services from mcp.barker.money on Zero

> mcp.barker.money serves 11 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/mcp.barker.money
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/mcp.barker.money/health.json

## Services

- [Barker Execution Quote](https://www.zero.xyz/c/barker-execution-quote-e5ca635f/llms.txt): $0.05/call via x402. Returns an unsigned, ready-to-sign EVM transaction for depositing into or redeeming from a stablecoin vault, along with route details, risk summary, and approval info — without ever broadcasting or holding funds.
- [Barker DeFi Vault Supply Yield Query](https://www.zero.xyz/c/barker-defi-vault-supply-yield-query-fb7aadbf/llms.txt): $0.001/call via x402. Returns a ranked list of real-time stablecoin supply yield pools across 500+ DeFi protocols, with APY, TVL, protocol, chain, and asset details.
- [Barker Yield Advisor – Ranked Stablecoin Yield Recommendations](https://www.zero.xyz/c/barker-yield-advisor-ranked-stablecoin-yield-recommendations-c91ba917/llms.txt): $0.03/call via x402. Returns a ranked list of top stablecoin yield opportunities across 500+ DeFi protocols, with APY, risk flags, TVL, and data-derived reasons per pick.
- [Barker Vault Position](https://www.zero.xyz/c/barker-vault-position-9295a557/llms.txt): $0.001/call via x402. Returns the current redeemable value of a wallet's ERC-4626 vault position — shares held and current asset value — by reading on-chain data for a given Barker pool and wallet address.
- [Barker Executable Pools Discovery](https://www.zero.xyz/c/barker-executable-pools-discovery-c54e87d2/llms.txt): $0.01/call via x402. Returns all stablecoin vaults that support direct deposit/redeem execution, with live capacity status, APY, and TVL — to be called before requesting an execution quote.
- [Barker Pool Search](https://www.zero.xyz/c/barker-pool-search-09619529/llms.txt): $0.001/call via x402. Fuzzy keyword search over DeFi stablecoin yield pools to resolve natural-language pool references into pool_uid identifiers for downstream tools.
- [Barker Cross-Chain Stablecoin Route Lookup](https://www.zero.xyz/c/barker-cross-chain-stablecoin-route-lookup-d8259a8c/llms.txt): $0.01/call via x402. Returns available cross-chain bridge routes and venue coverage for a given stablecoin from a specified origin chain.
- [Barker Pool APY/TVL History](https://www.zero.xyz/c/barker-pool-apy-tvl-history-590c9ed5/llms.txt): $0.005/call via x402. Returns a per-day APY and TVL time series for a single DeFi pool (default 30 days, up to 180) to support yield stability and volatility analysis.
- [Barker Stablecoin Market Overview](https://www.zero.xyz/c/barker-stablecoin-market-overview-56384645/llms.txt): $0.001/call via x402. Returns a real-time snapshot of the global stablecoin market including total market cap, yield-bearing cap, and distribution by asset and chain.
- [Barker Market Trend: Stablecoin APY vs US Treasury Benchmark](https://www.zero.xyz/c/barker-market-trend-stablecoin-apy-vs-us-treasury-benchmark-4bce263b/llms.txt): $0.001/call via x402. Returns historical APY trend data for stablecoins compared to a US Treasury benchmark over a configurable lookback window of 7 to 180 days
- [Barker Pool Detail](https://www.zero.xyz/c/barker-pool-detail-f31b21cf/llms.txt): $0.005/call via x402. Returns a full dossier for a single DeFi yield pool by pool_uid, including all APY components, TVL, terms, execution capability, and reward breakdown.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)