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Integration

PayWhirl

Subscription billing: plans, subscriptions and recurring invoices. Your client pastes their PayWhirl key once, and your agent or your code works with their access.

Payments

About PayWhirl

Through Operate As, your agent, n8n workflow or code works in PayWhirl with your client's own access. Your client pastes their API key from PayWhirl once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of PayWhirl's API through the request tool, with the client's access attached.

Common uses in Payments

  • Look up customers, payments and refunds
  • Send invoices and payment links
  • Report on revenue and failed payments

PayWhirl

PayWhirl · Payments

API key

Subscription billing: plans, subscriptions and recurring invoices

The client pastes their API key from PayWhirl's settings. We store it encrypted.

Tested against PayWhirl's live API.

Building with PayWhirl? The docs have setup steps and code for every tool.

Open the PayWhirl docs

Tools

Your agent calls any endpoint of PayWhirl's API with the request tool, with the client's access attached.

Base URL for request

https://api.paywhirl.com

  • request

    HTTPS ANY /v1/clients/{clientId}/paywhirl/{path}

    Any endpoint of PayWhirl's own API, with the client's access attached.

    servicestringrequired
    This service: paywhirl
    methodstringrequired
    GET, POST, PUT, PATCH or DELETE
    pathstringrequired
    The path under https://api.paywhirl.com
    queryobjectoptional
    Query parameters
    bodyobjectoptional
    A JSON body

Over MCP every tool also takes client_id, from list_clients. Over HTTPS send it as clientId to https://api.operate.as/v1.

What the client approves

  • Use the PayWhirl key you paste, with only the access you gave that key

Get started

Send your next client one link

Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.