Make.com Gmail AI Memory: Persistent Memory for Gmail Scenarios
Make.com Gmail scenarios process each email in isolation — no memory of previous emails from the same sender. retainr adds persistent per-sender memory via two HTTP modules so your AI email assistant knows every sender before it drafts a reply.
Create a free retainr account at retainr.dev/dashboard. Copy your API key. Takes 30 seconds.
2
Add HTTP module to search sender history
After the Gmail trigger in your scenario, add an HTTP GET module: https://api.retainr.dev/v1/memories/search?namespace=email:{sender_email}&q={subject_and_body}&limit=5. Authorization: Bearer YOUR_KEY. Inject results into your AI module.
3
Add HTTP module to store each interaction
After your AI module, add an HTTP POST module to https://api.retainr.dev/v1/memories. Body: namespace (email:{sender_email}), content (email summary + AI response + action taken). Every sender now has a persistent memory record.
Map the sender email from the Gmail trigger payload (From field) to the namespace: email:{from.email}. This scopes all emails from the same sender under one memory namespace. Use this namespace consistently in both the search and store HTTP modules.
Does this work with the Make.com Gmail Watch Emails trigger?
Yes. The Make.com Gmail module includes a Watch Emails trigger that fires on new emails matching your filter criteria. Map the sender email and body from the trigger payload to the retainr HTTP modules.
What should I store in Make.com Gmail memory?
Store the email topic, your AI-generated reply summary, and any commitments or follow-up actions. Avoid storing full email bodies for privacy. 2-3 sentences per email is sufficient for the AI to retrieve relevant context on the next email from this sender.
Can I use this for an AI email reply assistant in Make.com?
Yes. The pattern: Gmail Watch Emails → retainr HTTP GET (search sender history) → OpenAI or Claude module (draft reply with context) → retainr HTTP POST (store this exchange) → Gmail Send Email. The AI generates replies that account for everything this sender has ever told you.
Does the same retainr API key work for both Gmail and other Make.com scenarios?
Yes. One API key works across all your Make.com scenarios, n8n workflows, and Zapier Zaps. If you want Gmail memory and Slack memory to share the same user records, use the same namespace (email address). If you want separate pools, use channel-prefixed namespaces.
Give your Make.com Gmail scenario real memory
1,000 memory operations per month. Free forever. No credit card required.