Send Freelance Invoices via WhatsApp Using MCP.
Hours logged, invoice summary built, client notified on WhatsApp , freelancers get paid without chasing
Works with every AI agent you already use
…and any MCP-compatible client
Waiting for input…
Gemini How It Works
Your AI agent pulls time entries from Harvest for the current billing period , every hour tracked, which project, which client, which task.
It calculates total hours and billable amount per client based on your hourly rate. Then it writes an invoice summary to Google Sheets: client name, project, hours, rate, total due, and billing period.
For each client with unbilled hours, it sends a WhatsApp message: 'Hi Sarah , your invoice for June is ready.
24.5 hours on the website redesign, total: $2,450. I'll send the formal invoice shortly.' The client expects the invoice. You send it.
Payment arrives faster because nobody is surprised by the number.
Connector Orchestration: 3 Connectors, one intelligent agent
Connect Harvest, Google Sheets and WhatsApp Connectors so your AI agent reads your tracked time, builds a client-ready invoice summary in Google Sheets, and sends a WhatsApp message to each client with the total hours and amount due. Freelancers stop losing money to unbilled hours and unnoticed invoices.
Harvest
triggerReads time entries, projects, clients and invoices
list_time_entries list_projects list_clients list_invoices Google Sheets
actionBuilds invoice summaries and tracks payment status
append_sheet_values update_sheet_values get_spreadsheet create_spreadsheet WhatsApp Whatsapp
actionSends invoice notifications to clients
send_whatsapp_text send_whatsapp_template Run This Automation Today
Connect Claude, ChatGPT, Cursor, or any AI agent to the Vinkius catalog and run this automation in minutes.
Build Your Own Connector
Convert any internal API into a Connector. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on each call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Connect & Automate
The 3 servers this recipe uses are ready in the catalog. Connect them once, paste a prompt, and your AI runs the full workflow.
- Harvest, Google Sheets & WhatsApp Whatsapp ready in the catalog right now
- Add more from 5,800+ servers whenever you need
- Connections are secured and compliant by default
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers and recipes added weekly
Superpowers you didn't know your AI had
The Vinkius catalog gives your agent access to 5,800+ Connectors and the intelligence to combine them. Imagine never logging into another dashboard. Your AI handles the work across all tools, in one conversation. That's what this connectivity layer was built for.
Cross-Platform Intelligence
Your agent doesn't just connect to tools. It understands the relationships between them. Data flows where it needs to go, automatically, with full context preserved across all platforms.
Contextual Reasoning
Each decision your agent makes considers the full picture. It reads CRM data, checks calendars, reviews conversation history, and acts on everything at once. Not step by step. All at once.
Productivity at Scale
What used to take 45 minutes across five different dashboards now takes one sentence. Your agent runs the entire workflow end to end while you focus on decisions that actually matter.
Zero-Config Reliability
No API keys to paste. No webhooks to configure. No YAML to debug. Connect your Connectors once, and your agent handles the rest. Each time, without intervention.
Made for
exactly this
Your AI agent taps into the entire Vinkius AI Connectors to handle these for you. You describe what you need. It does the rest.
Freelance designers and developers billing hourly through Harvest who lose time reconciling entries at month-end
Consultants managing 5+ retainer clients who need monthly invoice summaries without manual calculation
Virtual assistants and service providers whose clients prefer WhatsApp communication over formal email invoicing
Solopreneurs who track time in Harvest but struggle with the admin of turning time logs into paid invoices
Frequently Asked Questions About This Connector Orchestration
Which Connectors do I need for this workflow?
Three: Harvest, Google Sheets and WhatsApp (WSLA). Connect all three to your AI client before running any prompt from this page.
Does this work with Claude Desktop, Cursor or Windsurf?
Yes. Any AI client that supports the Model Context Protocol works , Claude Desktop, Cursor, Windsurf, Cline and others. Connect the Connectors and paste a prompt.
Does the agent create the actual Harvest invoice?
Harvest has a create_invoice tool. You can ask the agent to create the formal invoice in Harvest after you review the summary. The WhatsApp message is a notification , the invoice comes from Harvest.
Can I filter by specific clients or date ranges?
Your prompt controls the scope. Ask for 'only Sarah and David' or 'all time entries from May 15 to June 15.' The agent filters Harvest data accordingly.
Is my time tracking and client data secure?
Connectors authenticate through API keys. Your agent only sees Harvest projects, Google Sheets and WhatsApp contacts you have granted access to. Vinkius does not store your data.
What if a client doesn't have a WhatsApp number?
The agent skips the WhatsApp notification for clients without a phone number and notes the gap. The Google Sheet summary is still created , only the notification is skipped.
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Connectors used in this workflow
Harvest
Harvest MCP lets you manage your time tracking, client data, and invoicing through your AI agent. You can create clients, generate invoice drafts, and monitor project time entries without leaving your chat interface. It turns your agent into a dedicated billing coordinator.
Google Sheets
Google Sheets MCP lets you read, write, and manage spreadsheet data through your AI agent. Stop wasting time on manual data entry or complex formulas. Just tell your agent to pull specific ranges, add new rows, or create entire new sheets on the fly. It handles the tedious work of keeping your data organized so you can focus on making decisions.
WSLA (WhatsApp)
WSLA (WhatsApp) connects your WhatsApp Business Platform to any AI agent. It lets your agent send text messages, use pre-approved templates, and react to customer messages using the official Meta Cloud API. It's the bridge for reliable, scalable messaging.