{
  "markdown": "# DeFi Yield Finder API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://defi-yields.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\nBest DeFi yields ranked by APY -- lending, staking, LP across 100+ protocols. Powered by DeFiLlama. 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    \"defi-yields\": {\n      \"url\": \"https://defi-yields.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl \"https://defi-yields.api.klymax402.com/api/yields?token=...\"\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| `defi_find_best_yields` | GET | `/api/yields` | $0.005 | Find best DeFi yield opportunities for a token |\n| `defi_find_best_yields` | POST | `/api/yields` | $0.005 | Find best DeFi yield opportunities for a token (POST variant) |\n\n### `defi_find_best_yields`\n\nUse this when you need to find the best DeFi yields for a token across all chains and protocols. Returns ranked opportunities in JSON.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `token` | string | yes | Token symbol to find yields for (e.g. USDC, ETH, WBTC) |\n| `chain` | string | no | Filter by chain (e.g. base, ethereum, arbitrum, polygon). Optional — returns all chains if omitted. |\n| `minTvl` | number | no | Minimum TVL in USD to filter pools (default: 100000) |\n| `limit` | number | no | Number of results to return (default: 10, max: 50) |\n\n**Returns**\n\n- `pool` -- pool/vault name and pair\n- `protocol` -- protocol name (Aave, Compound, Lido, Aerodrome, etc.)\n- `chain` -- which blockchain network\n- `apy` -- current annual percentage yield\n- `tvl` -- total value locked in USD\n- `riskLevel` -- risk assessment (low/medium/high)\n- `type` -- yield type (lending, staking, LP, vault)\n\nExample response:\n\n```json\n{\"pools\":[{\"pool\":\"USDC Lending\",\"protocol\":\"Aave V3\",\"chain\":\"base\",\"apy\":4.82,\"tvl\":125000000,\"riskLevel\":\"low\",\"type\":\"lending\"}],\"token\":\"USDC\",\"totalPools\":15}\n```\n\n**When to use**: deploying idle capital to find the highest safe yield. Essential for yield optimization and DeFi strategy comparison.\n\n**Not for**: swap quotes (use `dex_get_swap_quote`), wallet balance (use `wallet_get_portfolio`), liquidation risk (use `defi_get_liquidation_levels`).\n\n### `defi_find_best_yields`\n\nUse this when you need to find the best DeFi yields for a token across all chains and protocols. Returns ranked opportunities in JSON. POST variant of defi_find_best_yields -- same params passed as JSON body instead of query string.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `token` | string | yes | Token symbol to find yields for (e.g. USDC, ETH, WBTC) |\n| `chain` | string | no | Filter by chain (e.g. base, ethereum, arbitrum, polygon). Optional — returns all chains if omitted. |\n| `minTvl` | number | no | Minimum TVL in USD to filter pools (default: 100000) |\n| `limit` | number | no | Number of results to return (default: 10, max: 50) |\n\n**Returns**\n\n- `pool` -- pool/vault name and pair\n- `protocol` -- protocol name (Aave, Compound, Lido, Aerodrome, etc.)\n- `chain` -- which blockchain network\n- `apy` -- current annual percentage yield\n- `tvl` -- total value locked in USD\n- `riskLevel` -- risk assessment (low/medium/high)\n- `type` -- yield type (lending, staking, LP, vault)\n\nExample response:\n\n```json\n{\"pools\":[{\"pool\":\"USDC Lending\",\"protocol\":\"Aave V3\",\"chain\":\"base\",\"apy\":4.82,\"tvl\":125000000,\"riskLevel\":\"low\",\"type\":\"lending\"}],\"token\":\"USDC\",\"totalPools\":15}\n```\n\n**When to use**: deploying idle capital to find the highest safe yield. Essential for yield optimization and DeFi strategy comparison.\n\n**Not for**: swap quotes (use `dex_get_swap_quote`), wallet balance (use `wallet_get_portfolio`), liquidation risk (use `defi_get_liquidation_levels`).\n\n## Example agent prompts\n\n- \"Find the best DeFi yields for a token across all chains and protocols\"\n- \"Find the best DeFi yields for a token across all chains and protocols\"\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/defi-yields-x402",
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}