Connect SendGrid to Claude

To use SendGrid in Claude, connect your SendGrid account in Manyplug and add Manyplug to Claude once. Claude then gets 7 SendGrid tools, for example: “Send an email”, “Send a template”, and “Templates”. It takes about 4 minutes and works on the free plan.

Connect SendGrid Free plan, no card

1. Connect SendGrid in Manyplug

Click “Connect SendGrid” and paste the key or app password into Manyplug’s form:

Your SendGrid API key. Takes about a minute.

Open SendGrid → Settings → API Keys and click Create API Key.Open SendGrid API keys
Pick Restricted Access with Mail Send, Marketing, Stats and Template Engine (read), or Full Access.
Create the key, copy it (SG.…) and paste it into the form.

Emails go out only from a verified sender and only after you confirm.
For an EU regional subuser, pick the api.eu.sendgrid.com server.

2. Add Manyplug to Claude

claude.ai, Claude Desktop and mobile. The free plan allows one custom connector, and Manyplug is one connector for all your services.

Open Customize → Connectors (in older versions: Settings → Connectors).
Click “+ Add” → “Add custom connector”, name it Manyplug, paste the URL and click Continue.
Keep the suggested sign-in settings and click Add, then Connect: Manyplug opens — sign in and allow access.
In a chat, click “+” → Connectors, turn Manyplug on and ask: “Connect my email”.

Full guide: Claude

3. Ask Claude

How many emails were delivered and opened through SendGrid this week?
Send the “Welcome” template to ben@acme.com with the name Ben.
Add these three people to the Beta list in SendGrid.

What Claude can do in SendGrid

Each action can be turned off per account, and changes can wait for your OK.

Action	Access
Send an email Sends an email.	Risky
Send a template Sends a templated email.	Risky
Templates Dynamic templates.	Reads
Search contacts Finds contacts with SGQL.	Reads
Add contacts Adds or updates contacts.	Makes changes
Lists Contact lists.	Reads
Stats Deliveries, opens, clicks, bounces.	Reads

Questions

Can I connect two SendGrid accounts to Claude?

Yes. Connect each one in Manyplug under its own name, for example Work and Personal. Claude can use one of them or all at once.

Will Claude change anything in SendGrid without asking?

By default these actions wait for your approval before they run: “Send an email” and “Send a template”. Other changes follow your rules, which you can make stricter per account.

Do I need an official SendGrid MCP server for this?

No. Manyplug connects to SendGrid itself with a key or app password you paste into its form, and gives Claude the tools through one MCP address, together with your other services.

Is it free to connect Claude to Manyplug?

Yes. New workspaces get 14 days of Pro free, then the free plan keeps going with 150 actions a month and up to 3 connected accounts. No card needed. Paid plans start at $5 a month.

Does Claude see my passwords or API keys?

No. Keys are entered on Manyplug’s own pages, stored encrypted with a separate key per account, and the AI only receives tool results.

SendGrid in other AI apps

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