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SendGrid

In one line: Connect SendGrid so UnleashX can send emails, manage contacts and lists, validate addresses, and clean up bounced/blocked recipients — all from a conversation or automation.

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1. Overview

SendGrid (by Twilio) is an email delivery platform used to send transactional and marketing email reliably at scale, with contact lists, custom fields and deliverability tooling. Once connected to UnleashX, your agent can send an email on demand, add or update a contact, organize contacts into lists, validate an address before sending, and remove blocked or bounced recipients from the suppression list. Connecting SendGrid to UnleashX means follow-up emails and list hygiene happen automatically as part of your workflows, without logging into the SendGrid dashboard.

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2. What you’ll need

  • A SendGrid account.
  • A verified sender (single sender or authenticated domain) — required to send email.
  • Permission to create an API key (admin access to the SendGrid account).
No admin access? Ask your SendGrid admin to create an API key and verify a sender, then share the key and the verified “from” address with you.

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3. Get your credentials

UnleashX authenticates to SendGrid with an API key.
1

Open API Keys

In SendGrid, go to Settings → API Keys: https://app.sendgrid.com/settings/api_keys
2

Create a key

Click Create API Key, name it “UnleashX”, and choose Full Access (or a restricted key with Mail Send + Marketing/Contacts permissions).
3

Copy the key

Copy the key now.
SendGrid shows the API key only once. If you lose it, you must create a new one.
4

Verify a sender

Go to Settings → Sender Authentication and verify the email address or domain you’ll send from.

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4. Connect on UnleashX

1

Open your agent

Sign in at https://www.tryunleashx.com and open the agent you want to connect.
2

Find SendGrid

Go to Data Connectors and find SendGrid.
3

Connect

Click Connect / Add / Configure and paste your SendGrid API key. Provide your verified sender email if prompted.
4

Confirm

Save. The status will switch to a Connected badge.

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Use SendGrid in a Workflow

Once connected, you can add SendGrid to any automation from the Workflows builder. Its triggers and tools appear in the Apps panel, marked with an MCP badge.
1

Add a trigger or action node

Open Workflows → New Workflow. On the canvas, click + Add Trigger (or the + below any node) to add a step.Add a trigger on the workflow canvas
2

Pick SendGrid from the Apps panel

In the Paths panel, open the Apps tab and select SendGrid. Use the search box if you have many connectors.Choose your app from the Apps list
3

Choose a trigger or tool

Pick the trigger or action you want. Configure its fields — required fields are marked with a red asterisk (*).
4

Add or select your account

Under Selected account, choose an already-connected account, or click Add Account to connect one now.
5

Save and test

Fill in the remaining fields and click Save. Use Test to verify the step, then toggle Publish when the workflow is ready.
The steps are the same for every connector. For the full workflow builder guide, see Using MCP in Workflows.

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5. Available tools

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6. Example usage

“Email jane@acme.com a subject ‘Your demo is confirmed’ with the details below.” Runs Send Email from your verified sender address. “Add jane@acme.com to my ‘Newsletter’ list and remove her old blocked entry.” Runs Get All Lists (to find the list), Add or Update Contact, and Delete Block if she was previously blocked.

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7. Permissions & data access

UnleashX can:
  • Send emails from your verified sender.
  • Create/update/delete contacts and lists.
  • Read and remove suppression (block) entries and validate addresses.
UnleashX cannot:
  • Send from an unverified sender address.
  • Access SendGrid data beyond what the API key’s permissions allow.
  • Change your SendGrid billing or account-level settings.
To disconnect: In UnleashX go to Data Connectors → SendGrid → Disconnect. To fully revoke, delete the API key in SendGrid → Settings → API Keys. Revocation is immediate.

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8. Troubleshooting

For general connector issues, see /mcp/integrations.

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9. Frequently asked questions

Why do I need a verified sender? SendGrid blocks email from unverified addresses to protect deliverability. Verify a single sender or authenticate your domain before sending. Is my contact data stored by UnleashX? No. Tools call the SendGrid API live and return the result; UnleashX doesn’t keep a copy of your contacts. How do I rotate my key? Create a new API key in SendGrid, reconnect in UnleashX, then delete the old key.

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10. References