# How to connect Realphonevalidation to Claude Cowork ```json { "title": "How to connect Realphonevalidation to Claude Cowork", "toolkit": "Realphonevalidation", "toolkit_slug": "realphonevalidation", "framework": "Claude Cowork", "framework_slug": "claude-cowork", "url": "https://composio.dev/toolkits/realphonevalidation/framework/claude-cowork", "markdown_url": "https://composio.dev/toolkits/realphonevalidation/framework/claude-cowork.md", "updated_at": "2026-05-12T10:23:28.074Z" } ``` ## Introduction Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks. This guide walks you through the easiest and most secure way to connect your Realphonevalidation account to Cowork via Composio Connect, enabling it to check if this phone number is active, validate if a number is wireless or landline, verify if this email address is disposable, and more such actions on your behalf without compromising your account security. ## Also integrate Realphonevalidation with - [OpenAI Agents SDK](https://composio.dev/toolkits/realphonevalidation/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/realphonevalidation/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/realphonevalidation/framework/claude-code) - [Codex](https://composio.dev/toolkits/realphonevalidation/framework/codex) - [OpenClaw](https://composio.dev/toolkits/realphonevalidation/framework/openclaw) - [Hermes](https://composio.dev/toolkits/realphonevalidation/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/realphonevalidation/framework/cli) - [Google ADK](https://composio.dev/toolkits/realphonevalidation/framework/google-adk) - [LangChain](https://composio.dev/toolkits/realphonevalidation/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/realphonevalidation/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/realphonevalidation/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/realphonevalidation/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/realphonevalidation/framework/crew-ai) ## Connect Realphonevalidation to Claude Cowork ### Connecting Realphonevalidation to Claude Cowork 1. Open Customize In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top. 2. Add the Composio MCP server Click Add custom connector and paste in the Composio MCP server URL: ```bash https://connect.composio.dev/mcp ``` ## What is Claude Cowork? Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools. With Composio Connect, Cowork can securely access apps like Realphonevalidation through MCP without you sharing account credentials directly with the agent. ## What is the Realphonevalidation MCP server, and what's possible with it? The Realphonevalidation MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Realphonevalidation account. It provides structured and secure access to advanced phone number and email verification services, so your agent can perform actions like real-time phone validation, carrier checks, bulk number scrubbing, and email deliverability checks on your behalf. - Instant phone number validation: Let your agent verify if a phone number is active, its type (mobile or landline), carrier, and caller details in real time. - Bulk number scrubbing: Automatically process and validate large lists of phone numbers, checking for connectivity and type to ensure data accuracy at scale. - Email address verification: Have your agent check if an email is deliverable and not disposable, helping prevent bouncebacks and spam risks. - Reassigned and consent compliance checks: Enable your agent to determine if a number has been reassigned since a specific consent date for regulatory compliance. - Carrier and wireless identification: Easily identify whether a US phone number is wireless or landline for TCPA compliance and segmentation. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `REALPHONEVALIDATION_CHECK_FRAUD` | Check Phone Fraud Risk | Tool to check phone number for fraud risk using Fraud Check API. Provides a phone risk score and many actionable data points including phone type, carrier, location, and recommendation (block, flag, allow). Use when you need to identify possible fraudulent phone numbers. US numbers only. | | `REALPHONEVALIDATION_EMAIL_VERIFY` | Email Verification | Tool to validate an email address and check connectivity and disposability. Use after gathering an email to ensure it's deliverable and not disposable. | | `REALPHONEVALIDATION_LOOKUP_DNC` | DNC Lookup | Tool to check Do Not Call list status for US phone numbers. Determines if number is on National, State, or DMA Do Not Call lists, identifies cell vs landline, and checks for known TCPA litigators. Requires SAN number from FTC. | | `REALPHONEVALIDATION_RPV_ACTIVE` | Check Phone Active Status | Tool to determine if a phone number is active on a valid phone service provider. Use after collecting the user's phone number for real-time verification. | | `REALPHONEVALIDATION_RPV_REASSIGNED_NUMBER_LOOKUP` | Reassigned Number Lookup | Tool to check if a phone number has been reassigned since a given consent date. Use when verifying number ownership status after obtaining user consent. | | `REALPHONEVALIDATION_RPV_SCRUB_PLUS` | Scrub Plus Phone Numbers | Tool to scrub a phone number for connection status and type. Use to validate a US phone number's status and line type. | | `REALPHONEVALIDATION_RPV_WIRELESS_ID` | Wireless ID | Tool to identify whether a US phone number is landline or wireless. Use when conducting TCPA compliance checks. | | `REALPHONEVALIDATION_VALIDATE_PHONE_SCRUB` | Validate Phone Number (Scrub) | Tool to validate US phone numbers using budget-friendly Scrub API. Determines connectivity status quickly (under 2 seconds). Best for organizations with large lists/databases on tight budgets that only need connection status. Optional Iscell and Carrier fields available for additional charge. | | `REALPHONEVALIDATION_VALIDATE_PHONE_TURBO_STANDARD` | Validate Phone Turbo Standard | Tool to perform real-time US phone validation using Turbo Standard API. Provides connection status and phone type (Mobile, Landline, VoIP). Optimized for web forms and apps when only connection status and phone type are needed. Faster than Turbo V3 when only basic validation is required. Returns results in about 2 seconds. | | `REALPHONEVALIDATION_VALIDATE_PHONE_TURBO_V3` | Validate Phone Turbo V3 | Tool to perform comprehensive real-time phone validation using Turbo V3 API. Returns connection status, phone type (landline, cell, VoIP), carrier ID, caller name (when available), and caller type (consumer, business). Use when complete phone data overview is required in web forms. US numbers only. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Realphonevalidation MCP server connects Claude Cowork to your Realphonevalidation account through Composio. Once connected, Cowork can use the available Realphonevalidation tools and triggers to complete tasks on your behalf. ## Complete Code None listed. ## How to build Realphonevalidation MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/realphonevalidation/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/realphonevalidation/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/realphonevalidation/framework/claude-code) - [Codex](https://composio.dev/toolkits/realphonevalidation/framework/codex) - [OpenClaw](https://composio.dev/toolkits/realphonevalidation/framework/openclaw) - [Hermes](https://composio.dev/toolkits/realphonevalidation/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/realphonevalidation/framework/cli) - [Google ADK](https://composio.dev/toolkits/realphonevalidation/framework/google-adk) - [LangChain](https://composio.dev/toolkits/realphonevalidation/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/realphonevalidation/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/realphonevalidation/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/realphonevalidation/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/realphonevalidation/framework/crew-ai) ## Related Toolkits - [Excel](https://composio.dev/toolkits/excel) - Microsoft Excel is a robust spreadsheet application for organizing, analyzing, and visualizing data. 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Get detailed environmental insights directly from your own sensors for smarter apps and automations. - [Anonyflow](https://composio.dev/toolkits/anonyflow) - Anonyflow is a service for encryption-based data anonymization and secure data sharing. It helps organizations meet GDPR, CCPA, and HIPAA data privacy compliance requirements. - [Api ninjas](https://composio.dev/toolkits/api_ninjas) - Api ninjas offers 120+ public APIs spanning categories like weather, finance, sports, and more. Developers use it to supercharge apps with real-time data and actionable endpoints. - [Api sports](https://composio.dev/toolkits/api_sports) - Api sports is a comprehensive sports data platform covering 2,000+ competitions with live scores and 15+ years of stats. Instantly access up-to-date sports information for analysis, apps, or chatbots. - [Apify](https://composio.dev/toolkits/apify) - Apify is a cloud platform for building, deploying, and managing web scraping and automation tools called Actors. 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Instantly enrich your applications with up-to-date insights on 20M+ businesses. - [Bitquery](https://composio.dev/toolkits/bitquery) - Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research. - [Brightdata](https://composio.dev/toolkits/brightdata) - Brightdata is a leading web data platform offering advanced scraping, SERP APIs, and anti-bot tools. It lets you collect public web data at scale, bypassing blocks and friction. - [Builtwith](https://composio.dev/toolkits/builtwith) - BuiltWith is a web technology profiler that uncovers the technologies powering any website. Gain actionable insights into analytics, hosting, and content management stacks for smarter research and lead generation. - [Byteforms](https://composio.dev/toolkits/byteforms) - Byteforms is an all-in-one platform for creating forms, managing submissions, and integrating data. It streamlines workflows by centralizing form data collection and automation. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Realphonevalidation MCP? With a standalone Realphonevalidation MCP server, the agents and LLMs can only access a fixed set of Realphonevalidation tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Realphonevalidation and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Claude Cowork? Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Realphonevalidation tools. ### Can I manage the permissions and scopes for Realphonevalidation while using Tool Router? Yes, absolutely. You can configure which Realphonevalidation scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Realphonevalidation data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)