# 1Lookup MCP Server

**Canonical:** https://apis.io/apis/1lookup/1lookup-mcp-server/  
**Provider:** 1Lookup — https://apis.io/providers/1lookup/  
**Base URL:** https://app.1lookup.io/api/mcp  
**Documentation:** https://www.1lookup.io/products/mcp

1Lookup MCP Server is one of 3 APIs that [1Lookup](https://apis.io/providers/1lookup/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP / agent-native, Phone Validation, Email Validation, and IP Intelligence. The published artifact set on APIs.io includes API documentation.

First-party hosted/remote MCP connector with OAuth 2.1 auth (authorization code + PKCE, dynamic client registration, single `lookup` scope) exposing 5 tools (validate_phone, verify_email, ip_lookup, bulk_verify, get_account) for Claude, Cursor, ChatGPT, and any MCP client. Tool calls bill against the same plan credits as the REST API.

## Machine-readable artifacts (6)

- **MCPServer** — https://app.1lookup.io/api/mcp
- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/1lookup/refs/heads/main/mcp/1lookup-mcp.yml
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/1lookup/refs/heads/main/mcp/1lookup-tool-crosswalk.yml
- **Documentation** — https://www.1lookup.io/products/mcp
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/1lookup/refs/heads/main/scopes/1lookup-scopes.yml
- **WellKnown** — https://www.1lookup.io/.well-known/mcp/server-card.json

## Other 1Lookup APIs (2)

- [1Lookup REST API](https://apis.io/apis/1lookup/1lookup-rest-api/)
- [1Lookup LLMs Index](https://apis.io/apis/1lookup/1lookup-llms-index/)

## Tags

MCP / agent-native, Phone Validation, Email Validation, IP Intelligence

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/1lookup/1lookup-mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/1lookup/.