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One API key for every lookup

LookValid is one API key and one credit balance for many lookup products: phone numbers, email domains, IP addresses, domains and websites. You call a product, get a JSON answer, and spend credits only when the lookup finds something.

Terminal
curl -X POST https://YOUR_API_HOST/v1/ip \
  -H "Authorization: Bearer $LOOKVALID_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip":"203.0.113.7"}'

Set up your agent

Hand your coding agent the playbook at /get-started.md. It gets a key, installs the MCP server and makes a first call.

Agent prompt

Set up LookValid for me. Fetch https://lookvalid.com/get-started.md and follow it.

What's new

The latest changes to LookValid. The full list is in the changelog.

  • MCP server for AI agents

    The MCP server speaks streamable HTTP, takes your API key as a bearer token and exposes every lookup as a tool, plus get_account for your balance and keys.

  • Documentation, OpenAPI and llms.txt

    The documentation covers the base URL and authentication. A plain-text guide for agents is at https://lookvalid.com/llms.txt.

  • 14 lookups on one key

    One API key and one credit balance now cover these lookups. Each is a POST to its own path under https://YOUR_API_HOST.

Lookups

Every lookup takes the same API key and spends from one credit balance. The API reference lists all of them.

Guides

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