PaidHarbor

PaidHarbor MCP

Use PaidHarbor inside Claude — and any AI agent.

Create real, payable invoices from a sentence, run the pay-math calculators, and track opens — right in your AI chat.

Connect in Claude Open PaidHarbor

Sign in with a free Keelara account during the connect step — one login across the whole Keelara toolkit.

Connect in Claude (2 minutes)

  1. 1

    Open Claude's connector settings

    In Claude (web or desktop): Settings → Connectors → Add custom connector. Available on Claude paid plans.

  2. 2

    Paste the Keelara MCP server URL

    Name it anything (e.g. "PaidHarbor"). Leave the OAuth Client ID/Secret fields empty — registration is automatic.

    https://mcp.keelara.com
  3. 3

    Click Connect and sign in with a Keelara account

    A Keelara login window opens. Sign in — or create a free account with email or Google — and approve access.

  4. 4

    Recommended: set the tools to "Always allow"

    In the connector's tool permissions, choose Always allow. Then try it: "Invoice Acme Corp $2,400 for 3 days of design work, net 15 — and tell me when they open it."

What your assistant can do

paidharbor_calculate

All six pay-math calculators — time card, work hours, overtime, sales tax, margin, tip — as one deterministic tool.

Free Open in Playground
paidharbor_create_invoice

Turn a sentence into a real, hosted, PAYABLE invoice link with your payment button on it. 2 free per day — unlimited with PaidHarbor Pro.

Free (2/day) → Pro Open in Playground
paidharbor_invoice_status

See when your invoice was opened, how many times, and mark it paid — without leaving the chat.

Pro Open in Playground

And because your assistant reasons over the results, whole workflows come free: "figure out this week's overtime pay and invoice the client for it,""add 8% sales tax to this quote and turn it into an invoice,""remind me which invoices are still unpaid."

Included with Pro

Unlimited MCP invoicing and open-tracking is a PaidHarbor Pro feature ($9/mo). The same email you subscribe with unlocks it in Claude automatically — just sign in to the connector using that email. No separate API key, no extra setup.

See Pro pricing

How usage works

  • ✓ The pay-math calculators are always free, unlimited.
  • ✓ Creating a payable invoice is free up to 2 per day — no credit card.
  • ✓ When you hit the daily cap, your assistant tells you and links to upgrade — nothing fails silently.
  • ✓ PaidHarbor Pro unlocks unlimited invoices, plus open-tracking from inside the chat.

Privacy

  • ✓ PaidHarbor never touches your money — invoices carry YOUR payment links (Stripe, PayPal, Venmo, etc.).
  • ✓ Text sent to draft an invoice is processed to produce the result and not used to train AI models.
  • ✓ Access is tied to your Keelara sign-in.
  • ✓ See our privacy policy for details.

Beyond Claude

PaidHarbor MCP follows the open Model Context Protocol, so the same URL works in any MCP-compatible client — ChatGPT (Apps/developer mode), Cursor, agent frameworks, and AWS Bedrock agent stacks. Point the client at the server URL above and authenticate with a Keelara account.

Troubleshooting

  • Tools look outdated or missing? Remove and re-add the connector — clients pin the tool list when you first connect.
  • "Daily limit reached"? You've used today's 2 free invoices — they reset tomorrow, or upgrade to Pro for unlimited.

Get paid — without leaving the chat.

Connect in Claude