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ENS Resolver API

Registre officiel Autres

Resolve ENS names to Ethereum addresses and reverse. x402 micropayment.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (sse)
Claude Code 
claude mcp add --transport sse ens-resolver-api 'https://ens-resolver.api.klymax402.com/mcp'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "ens-resolver-api": {
            "type": "sse",
            "url": "https://ens-resolver.api.klymax402.com/mcp"
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. ENS Resolver API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

ENS Resolver API

Resolve ENS names to ETH addresses and reverse -- avatar URLs included. Identity layer for agents. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "ens-resolver": {
      "url": "https://ens-resolver.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://ens-resolver.api.klymax402.com/api/resolve" \
  -H "Content-Type: application/json" \
  -d '{}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
crypto_resolve_ensPOST/api/resolve$0.005Resolve ENS name to Ethereum address or reverse-resolve address to ENS name
crypto_resolve_ens

Use 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.

Parameters

NameTypeRequiredDescription
namestringnoENS name to resolve (e.g. vitalik.eth)
addressstringnoEthereum address for reverse resolution (e.g. 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045)

Returns

  • address -- resolved Ethereum address (0x...)
  • ensName -- ENS name (e.g. vitalik.eth)
  • avatar -- avatar URL associated with the ENS name (if set)
  • resolvedDirection -- "forward" (name to address) or "reverse" (address to name)

Example response:

{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","ensName":"vitalik.eth","avatar":"https://...","resolvedDirection":"forward"}

When to use: sending funds to an ENS name to verify the correct address. Essential for identity resolution and human-readable wallet lookup.

Not for: wallet balances (use wallet_get_portfolio), token safety (use token_check_safety), NFT metadata (use crypto_get_nft_metadata).

Example agent prompts

  • "Resolve an ENS name to an Ethereum address, or reverse-resolve an address to its ENS name"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Questions fréquentes

Qu'est-ce que ENS Resolver API ?

Resolve ENS names to Ethereum addresses and reverse. x402 micropayment.

Comment installer ENS Resolver API ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport sse ens-resolver-api 'https://ens-resolver.api.klymax402.com/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour ENS Resolver API ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

ENS Resolver API est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient ENS Resolver API ?

Il est publié par Br0ski777. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.