{
  "markdown": "# ENS Resolver API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://ens-resolver.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\nResolve ENS names to ETH addresses and reverse -- avatar URLs included. Identity layer for agents. 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    \"ens-resolver\": {\n      \"url\": \"https://ens-resolver.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl -X POST \"https://ens-resolver.api.klymax402.com/api/resolve\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{}'\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| `crypto_resolve_ens` | POST | `/api/resolve` | $0.005 | Resolve ENS name to Ethereum address or reverse-resolve address to ENS name |\n\n### `crypto_resolve_ens`\n\nUse this when you need to resolve an ENS name to an Ethereum address, or reverse-resolve an address to its ENS name. Returns resolution data in JSON.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `name` | string | no | ENS name to resolve (e.g. vitalik.eth) |\n| `address` | string | no | Ethereum address for reverse resolution (e.g. 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045) |\n\n**Returns**\n\n- `address` -- resolved Ethereum address (0x...)\n- `ensName` -- ENS name (e.g. vitalik.eth)\n- `avatar` -- avatar URL associated with the ENS name (if set)\n- `resolvedDirection` -- \"forward\" (name to address) or \"reverse\" (address to name)\n\nExample response:\n\n```json\n{\"address\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\",\"ensName\":\"vitalik.eth\",\"avatar\":\"https://...\",\"resolvedDirection\":\"forward\"}\n```\n\n**When to use**: sending funds to an ENS name to verify the correct address. Essential for identity resolution and human-readable wallet lookup.\n\n**Not for**: wallet balances (use `wallet_get_portfolio`), token safety (use `token_check_safety`), NFT metadata (use `crypto_get_nft_metadata`).\n\n## Example agent prompts\n\n- \"Resolve an ENS name to an Ethereum address, or reverse-resolve an address to its ENS name\"\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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  "sha": "ab3e7413dd8f21838b7e7afb634ff9252129b82e1989e235118904b0d582e6dd",
  "repo_slug": "br0ski777/ens-resolver-x402",
  "fonte": "repo",
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  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_ens_resolver_84a7bd7a/readme"
}