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AI & Automation · Gmail Add-in Development

Gmail add-ons for email automation.

Gmail add-in development company delivering custom email automation services — hire Gmail add-on developers for contextual cards, email parsing, CRM integration, automated responses, and workflow triggers built with Apps Script.

Gmail add-in development company
Gmail email parsing and automation services
Hire Gmail add-on developers
CRM email logging
Automated response systems
Gmail API integration
Gmail Add-in Development
25+
Gmail add-ons built
Email automation and productivity tools.
60%
Less email handling time
Automated parsing, categorisation, and responses.
50K+
Emails processed daily
Enterprise-scale email automation.
0
Hosting cost
Runs natively inside Gmail.
Why MetaDesign

Hire Gmail add-on developers for email automation.

Gmail add-in development company — contextual cards, CRM integration, email automation.

Contextual Cards

Gmail add-in development company building rich sidebar cards showing CRM data, order details, or ticket status when viewing emails — no tab switching needed.

Email Automation

Gmail email parsing and automation services for auto-labelling, auto-replying, parsing attachments, and triggering workflows based on email content.

CRM Integration

Hire Gmail add-on developers to log emails to Salesforce, HubSpot, or custom CRM directly from Gmail with one-click actions.

Teams shipping with MetaDesign
Selected work

Case studies.

Sales Team

Gmail add-on showing CRM contact data, deal stage, and notes alongside emails — one-click email logging to CRM.

Sales Team

Gmail add-on showing CRM contact data, deal stage, and notes alongside emails — one-click email logging to CRM.

CRM
sidebar
One-click
logging

Support Team

Auto-categorise support emails, extract ticket data, and create tasks in project management tools.

Support Team

Auto-categorise support emails, extract ticket data, and create tasks in project management tools.

Auto-categorisation
Result
Ticket
extraction
PARSE.
AUTOMATE.
INTEGRATE.
RESPOND.

CRM Sidebar

Gmail add-in development company showing contact details, deal history, and notes from your CRM alongside every email.

Auto-Labelling

Gmail email parsing and automation services automatically categorising and labelling emails based on content, sender, or keywords.

Smart Replies

Hire Gmail add-on developers for template-based auto-responses triggered by email patterns and rules.

Attachment Processing

Auto-extract, rename, and organise attachments to Drive with metadata tagging.

Our Approach

Gmail Add-in Development: Our Proven Process

01

Scope

Email workflow audit and add-on requirements.

02

Design

Card UI design and automation rule architecture.

03

Build

Apps Script + Gmail API + Card Service development.

04

Test

Email parsing accuracy and edge case handling.

05

Deploy

Marketplace or domain deployment.

01

Scope

Email workflow audit and add-on requirements.

02

Design

Card UI design and automation rule architecture.

03

Build

Apps Script + Gmail API + Card Service development.

04

Test

Email parsing accuracy and edge case handling.

05

Deploy

Marketplace or domain deployment.

Customer Value

Six places it pays back
in the first sprint.

Real outcomes our clients report within the first engagement cycle.

Faster time-to-market

Production-ready teams that ship from week one — no ramp-up lag.

Reduced technical risk

Architecture reviews, code audits, and security scans baked into every sprint.

Measurable velocity

Cycle time, PR throughput, and defect density tracked from day one.

Cost predictability

Fixed-price or capped T&M — no surprise invoices, ever.

Continuous improvement

Retros, post-mortems, and process refinement every sprint.

Knowledge transfer

Your team grows. Documentation, pair programming, and workshops included.

Stack

Tools our Gmail Add-in
Developers
ship with.

Production-tested toolchains, frameworks, and infrastructure our Gmail Add-in engineering teams use to ship scalable, secure solutions.

Google Apps Script
Gmail API
Card Service
JavaScript
Clasp CLI
JSON
Google Apps Script
Gmail API
Card Service
JavaScript
Clasp CLI
JSON
Google Apps Script
Gmail API
Card Service
JavaScript
Clasp CLI
JSON
Drive API
Calendar API
People API
OAuth 2.0
REST APIs
Triggers
Drive API
Calendar API
People API
OAuth 2.0
REST APIs
Triggers
Drive API
Calendar API
People API
OAuth 2.0
REST APIs
Triggers
By the numbers
400+
Engineers worldwide
200+
Active clients
20yr
Pure-play software
94%
Client retention
Engagement models

Three ways to work with our Gmail Add-in team.

Pick the shape that matches your risk and timeline. We will tell you which one is wrong for your situation — even if it’s the bigger one.

01MOST POPULAR

Gmail Add-in Pod

A dedicated squad of senior engineers, tech leads, and QA delivering milestone-driven results with weekly demos and eval-gated merges.

  • Dedicated engineering squad
  • Weekly sprint demos
  • Fixed monthly cadence
  • Direct technical lead communication
Build with a Pod
02EMBED

Hire Gmail Add-in Engineers

Senior specialized engineers embedded into your existing team within two weeks. Your stack, your tools, your standups.

  • 2-week onboarding ramp
  • Time-zone aligned collaboration
  • Direct Git & Jira integration
  • Flexible monthly contracts
Request Talent
03LAUNCH

Turnkey / MVP Build

Go from requirements to production-ready launch in 6–10 weeks with fixed scope, upfront pricing, and guaranteed delivery.

  • Fixed-price & fixed-scope
  • End-to-end architecture & build
  • Complete source code ownership
  • Post-launch warranty & support
Start Your Build
FAQ

Asked first, every time.

Don't see yours here? Send us the question — a principal engineer will reply within 24 hours.
Yes. Our Gmail add-in development company uses Card Service to render rich contextual cards showing contact info, deal history, and actions from Salesforce, HubSpot, or custom CRMs.
Yes. Our Gmail email parsing and automation services build rules that scan subject lines, sender domains, and body content to automatically apply Gmail labels.
Yes. Hire Gmail add-on developers who build with Card Service for consistent experience across web, Android, and iOS.
Yes. Our Gmail add-in development company extracts, renames, and saves attachments to Drive folders with metadata — triggered automatically when emails arrive.
We utilize robust OAuth 2.0 flows native to Google Workspace, ensuring the Gmail add-on requests only the minimal required scopes and securely manages refresh tokens when connecting to third-party CRMs.
Yes, you can hire our developers to build custom email tracking solutions that inject tracking pixels, monitor open rates, and sync that data back to a central dashboard directly from the Gmail UI.
Gmail add-ons use the Google Workspace Card Service, which provides a constrained set of UI widgets (buttons, text inputs, dropdowns) to ensure a consistent experience. Complex HTML/CSS is not supported.
Absolutely. For CPU-intensive parsing or complex AI summarization, we architect the add-in to pass the email payload to highly scalable Google Cloud Functions for processing.
We deploy internal add-ons privately via the Google Workspace Admin console. This ensures automatic updates are pushed seamlessly to all employees without requiring individual installations.
Yes, we can leverage regex patterns or lightweight NLP APIs within the add-on to scan email context and dynamically generate contextual response templates for the user.

Build custom Gmail add-ons with our team.

Tell us about your project. We'll come back with a plan, a timeline, and the right team — no obligations.

Book a Call
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