# Free CSV Tools (MCPs and REST APIs) | Dedupely > Free CSV tools for contact lists, in the browser and as MCPs and REST APIs for AI agents: dedupe, split names, normalize emails, merge lists, extract domains. - URL: https://dedupe.ly/pt/tools - Section: tools - Site index: https://dedupe.ly/llms.txt - Any page: append `.md` to its URL for this plain-text form --- ## Free CSV tools for contact lists Dedupe and clean a contact list in a minute with tools your AI agent can call too. ### Pick a tool [CSV dedupe](https://dedupe.ly/tools/csv-dedupe) [Name splitter](https://dedupe.ly/tools/name-splitter) [Email normalizer](https://dedupe.ly/tools/email-normalizer) [List merger](https://dedupe.ly/tools/list-merger) [Domain extractor](https://dedupe.ly/tools/domain-extractor) [Company normalizer](https://dedupe.ly/tools/company-normalizer) [Test data generator](https://dedupe.ly/tools/test-data-generator) ### Built for people and for AI agents A chat assistant gets asked to clean a list. It has no tool to call. It writes a script that half works. **Every tool here is also an MCP server and a JSON API any agent can call.** ### Use it from a script or an AI agent CSV dedupe Name splitter Email normalizer List merger Domain extractor Company normalizer Test data generator [Use in Claude](https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Dedupely%20CSV%20tools&connectorUrl=https%3A%2F%2Fdedupe.ly%2Ftools%2Fmcp) GET https://dedupe.ly/tools/api the six tools and their limits GET https://dedupe.ly/tools/api/openapi.json OpenAPI 3.1 POST https://dedupe.ly/tools/api/ JSON in, JSON and CSV out MCP https://dedupe.ly/tools/mcp Streamable HTTP, no auth https://dedupe.ly/.well-known/api-catalog RFC 9727 catalog [OpenAPI document](https://dedupe.ly/tools/api/openapi.json) · [API index](https://dedupe.ly/tools/api) · [llms.txt](https://dedupe.ly/llms.txt) ### Get started for free 20 free trial merges and as much free support as you need to get your duplicates under control. [Talk to sales](https://meetings.dedupe.ly/meetings/hampus-isaksson/dedupely-zoom-schedule)[Try for free](https://v2.app.dedupe.ly/signup) [Or sign up with Google](https://v2.app.dedupe.ly/signup/google) Running CRM cleanup for clients? [See the Partner Program](https://dedupe.ly/become-a-partner) Skip to content