--- title: "lemlist API: can your AI chat use it? ยท Hypamoon" description: "What we could and could not confirm about the lemlist API: public docs, a key you create yourself and a stable version. With sources." url: https://hypamoon.com/connect-to/lemlist --- 1. [Connect to](https://hypamoon.com/connect-to) 2. lemlist Email marketing # Connect lemlist to Hypamoon We could not confirm it. lemlist passes some of our checks, but not all three could be confirmed from its own docs. Unknown ## The check Three questions about the API of lemlist, answered from its own docs. **Public API docs**\ **Yes.** Public API reference. [Read the docs](https://developer.lemlist.com/api-reference/getting-started/overview) **A key you create yourself**\ **Yes.** You generate an API key in your lemlist account and use it as the Basic auth password. [developer.lemlist.com](https://developer.lemlist.com/api-reference/getting-started/authentication) **Versions or a changelog**\ **Not confirmed.** **How it signs in**\ HTTP Basic with an empty username and your API key as password. **Webhooks**\ **Not confirmed.** **Hosting**\ Cloud ## What you can build Add leads from your CRM to lemlist campaigns and log replies back in your own screen. Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. [How adapters work](https://hypamoon.com/docs/adapters) ### Good to know - Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow. ## Try it in your chat First get access from lemlist. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for lemlist. API docs: https://developer.lemlist.com/api-reference/getting-started/overview. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20lemlist.%20API%20docs%3A%20https%3A%2F%2Fdeveloper.lemlist.com%2Fapi-reference%2Fgetting-started%2Foverview.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.) In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. [The full recipe](https://hypamoon.com/r/build-an-adapter) ## Sources Checked on 7 November 2026. - [developer.lemlist.com/api-reference/getting-started/overview](https://developer.lemlist.com/api-reference/getting-started/overview) - [developer.lemlist.com/api-reference/getting-started/authentication](https://developer.lemlist.com/api-reference/getting-started/authentication) lemlist is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with lemlist. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in email marketing - [**ActiveCampaign** Open](https://hypamoon.com/connect-to/activecampaign) - [**Brevo** Open](https://hypamoon.com/connect-to/brevo) - [**Campaign Monitor** Open](https://hypamoon.com/connect-to/campaign-monitor) - [**Constant Contact** Open](https://hypamoon.com/connect-to/constant-contact) - [**Customer.io** Open](https://hypamoon.com/connect-to/customer-io) - [**Klaviyo** Open](https://hypamoon.com/connect-to/klaviyo) - [**Laposta** Open](https://hypamoon.com/connect-to/laposta) - [**Mailchimp** Open](https://hypamoon.com/connect-to/mailchimp) - [**MailerLite** Open](https://hypamoon.com/connect-to/mailerlite) - [**Marketo Engage** Open](https://hypamoon.com/connect-to/marketo-engage) - [**Omnisend** Open](https://hypamoon.com/connect-to/omnisend) - [**Salesforce Account Engagement (Pardot)** Open](https://hypamoon.com/connect-to/salesforce-account-engagement) - [**Spotler Mail+** Open](https://hypamoon.com/connect-to/spotler-mail-plus) - [**CleverReach** Open](https://hypamoon.com/connect-to/cleverreach) - [**Copernica** Open](https://hypamoon.com/connect-to/copernica) - [**Actito** Open](https://hypamoon.com/connect-to/actito) - [**Deployteq** Unknown](https://hypamoon.com/connect-to/deployteq) - [**Flexmail** Open](https://hypamoon.com/connect-to/flexmail) - [**Mailjet** Open](https://hypamoon.com/connect-to/mailjet) - [**GetResponse** Open](https://hypamoon.com/connect-to/getresponse) - [**Kit (ConvertKit)** Open](https://hypamoon.com/connect-to/kit) - [**Drip** Open](https://hypamoon.com/connect-to/drip) - [**Dotdigital** Open](https://hypamoon.com/connect-to/dotdigital) - [**rapidmail** Open](https://hypamoon.com/connect-to/rapidmail) - [**Twilio SendGrid** Open](https://hypamoon.com/connect-to/sendgrid) - [**Postmark** Open](https://hypamoon.com/connect-to/postmark) - [**Mailgun** Open](https://hypamoon.com/connect-to/mailgun) - [**Leat (formerly Piggy)** Open](https://hypamoon.com/connect-to/leat) - [**Feefo** Open](https://hypamoon.com/connect-to/feefo) - [**WebwinkelKeur** Open](https://hypamoon.com/connect-to/webwinkelkeur) - [**Feedback Company** Unknown](https://hypamoon.com/connect-to/feedback-company) - [**SAP Emarsys** Open](https://hypamoon.com/connect-to/emarsys) - [**Inxmail** Open](https://hypamoon.com/connect-to/inxmail) - [**Sarbacane** Unknown](https://hypamoon.com/connect-to/sarbacane) - [**Woodpecker** Possible](https://hypamoon.com/connect-to/woodpecker) [All 1094 tools](https://hypamoon.com/connect-to) ## Tool not listed? Ask the chat to check its API. The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found. Say this in your chat > Check if \[software\] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used. [Open in Claude](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) Fill in the name of your software. Checking needs no connection to Hypamoon. ## Ready to connect lemlist? Connect your chat once, then ask it to build the adapter. [Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=lemlist) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~lemlist#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~lemlist#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)