{
  "markdown": "# Base DeFi Yield Optimizer API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://base-defi.api.klymax402.com/mcp)\n[![x402](https://img.shields.io/badge/payments-x402-6E56CF)](https://x402.org)\n[![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE)\n\nBase chain DeFi yields -- Aerodrome LP, Moonwell lending, top farms ranked by APY with TVL and risk. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall.\n\nPart of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.\n\n## Quickstart -- MCP\n\nAdd to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):\n\n```json\n{\n  \"mcpServers\": {\n    \"base-defi\": {\n      \"url\": \"https://base-defi.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl \"https://base-defi.api.klymax402.com/api/opportunities\"\n# -> 402 Payment Required, with an x402 payment challenge in the response body\n```\n\nAny x402-aware client ([`@x402/fetch`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically.\n\n## Tools\n\n| Tool | Method | Path | Price | Description |\n|---|---|---|---|---|\n| `base_get_defi_opportunities` | GET | `/api/opportunities` | $0.008 | Get DeFi yield opportunities on Base chain |\n| `base_get_defi_opportunities` | POST | `/api/opportunities` | $0.008 | Get DeFi yield opportunities on Base chain (POST variant) |\n\n### `base_get_defi_opportunities`\n\nUse this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `protocol` | string | no | Filter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'. |\n\n**Returns**\n\n- `opportunities` -- array of yield farms ranked by APY\n- `protocol` -- protocol name (Aerodrome, Moonwell)\n- `pool` -- pool name and token pair\n- `apy` -- current annual percentage yield\n- `tvl` -- total value locked in USD\n- `riskScore` -- risk rating (1-10, lower is safer)\n- `type` -- yield type (LP, lending, staking)\n\nExample response:\n\n```json\n{\"opportunities\":[{\"protocol\":\"Aerodrome\",\"pool\":\"USDC/WETH\",\"apy\":18.5,\"tvl\":45000000,\"riskScore\":3,\"type\":\"LP\"},{\"protocol\":\"Moonwell\",\"pool\":\"USDC Lending\",\"apy\":5.2,\"tvl\":120000000,\"riskScore\":1,\"type\":\"lending\"}],\"chain\":\"base\",\"totalPools\":12}\n```\n\n**When to use**: deploying capital on Base chain specifically. Curated list of vetted Base-native protocols only.\n\n**Not for**: swap quotes on Base (use `dex_get_swap_quote`), liquidation risk (use `defi_get_liquidation_levels`).\n\n### `base_get_defi_opportunities`\n\nUse this when you need DeFi yield opportunities specifically on Base chain. Returns Base-native protocol yields in JSON. POST variant of base_get_defi_opportunities -- same params passed as JSON body instead of query string.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `protocol` | string | no | Filter by protocol: 'all', 'aerodrome', or 'moonwell'. Defaults to 'all'. |\n\n**Returns**\n\n- `opportunities` -- array of yield farms ranked by APY\n- `protocol` -- protocol name (Aerodrome, Moonwell)\n- `pool` -- pool name and token pair\n- `apy` -- current annual percentage yield\n- `tvl` -- total value locked in USD\n- `riskScore` -- risk rating (1-10, lower is safer)\n- `type` -- yield type (LP, lending, staking)\n\nExample response:\n\n```json\n{\"opportunities\":[{\"protocol\":\"Aerodrome\",\"pool\":\"USDC/WETH\",\"apy\":18.5,\"tvl\":45000000,\"riskScore\":3,\"type\":\"LP\"},{\"protocol\":\"Moonwell\",\"pool\":\"USDC Lending\",\"apy\":5.2,\"tvl\":120000000,\"riskScore\":1,\"type\":\"lending\"}],\"chain\":\"base\",\"totalPools\":12}\n```\n\n**When to use**: deploying capital on Base chain specifically. Curated list of vetted Base-native protocols only.\n\n**Not for**: swap quotes on Base (use `dex_get_swap_quote`), liquidation risk (use `defi_get_liquidation_levels`).\n\n## Example agent prompts\n\n- \"DeFi yield opportunities specifically on Base chain\"\n- \"DeFi yield opportunities specifically on Base chain\"\n\n## Payment\n\n- Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key\n- Network: Base L2 (`eip155:8453`)\n- Asset: USDC\n- Facilitator: Coinbase CDP (primary), PayAI (fallback)\n- Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata)\n\n## Part of klymax402\n\n100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.\n\n- Catalog: https://klymax402.com/llms.txt\n- Full API reference: https://klymax402.com/llms-full.txt\n- Live stats: https://klymax402.com/stats\n\n## License\n\nMIT\n",
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  "repo_slug": "br0ski777/base-defi-x402",
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}