# How to connect PayChasers to Claude

```json
{
  "title": "How to connect PayChasers to Claude",
  "toolkit": "PayChasers",
  "toolkit_slug": "paychasers",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/paychasers/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/paychasers/framework/claude-cowork.md",
  "updated_at": "2026-09-09T05:39:33.143Z"
}
```

## Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.
This guide walks you through the easiest and most secure way to connect your PayChasers account to Claude via Composio Connect, enabling it to send payment reminder for invoice INV-123, list overdue invoices older than 30 days, create follow-up sequence for overdue accounts, and more such actions on your behalf without compromising your account security.
Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

## Also integrate PayChasers with

- [ChatGPT Work](https://composio.dev/toolkits/paychasers/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/paychasers/framework/hermes-agent)

## Connect PayChasers to Claude Cowork

### Connecting PayChasers to Claude Web, Desktop, and Cowork
1. Open Customize
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the PayChasers MCP server, and what's possible with it?

The PayChasers MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your PayChasers account. It provides structured and secure access so your agent can perform PayChasers operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `PAYCHASERS_CREATE_CHASE` | Create Chase | Create a payment chase and potentially send its initial reminder immediately. Using client_email may also create a persistent client. Neither the chase nor the client can be deleted through the API, and FREE accounts allow at most five active chases. |
| `PAYCHASERS_CREATE_CLIENT` | Create Client | Create a persistent PayChasers client from a name, billing email, and notes. PayChasers provides no API endpoint to delete the client afterward. |
| `PAYCHASERS_GET_CURRENT_USER` | Get Current User | Return the connected PayChasers account profile, plan, and default currency; use this to identify the account or check its tier. |
| `PAYCHASERS_LIST_CHASES` | List Chases | Return chases, optionally filtered by exact status and capped by a truncating limit; the API provides no continuation mechanism. |
| `PAYCHASERS_LIST_CLIENTS` | List Clients | Return all clients visible to the connected PayChasers account. |
| `PAYCHASERS_MARK_CHASE_PAID` | Mark Chase Paid | Irreversibly mark a chase as paid and stop its automated follow-ups. Warning: PayChasers provides no API operation to reverse this change. |
| `PAYCHASERS_SEND_FOLLOW_UP` | Send Follow-Up | Immediately send one manual follow-up for a chase in the selected tone. Warning: this sends a message to an external recipient and is limited to 10 sends per hour. |

## Supported Triggers

None listed.

## Troubleshooting

### 1. Why does Claude not use the Composio connector for PayChasers?

The connector can show as connected, but Claude must use it in each PayChasers conversation.
- Click + at the lower left of the chat, or type /.
- Hover Connectors.
- Turn on Composio.
- Ask Claude to connect to PayChasers again.

### 2. Why does Claude show an MCP server error before PayChasers connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for PayChasers.
- Check that the connector URL is https://connect.composio.dev/mcp.
- Connectors run from Anthropic's cloud, so your device network is usually not the problem.
- Add the connector again from Customize > Connectors, then ask Claude to connect PayChasers.
- If it fails again, send the error and the ofid_ reference id to support@composio.dev.

### 3. Why does the PayChasers authorization link not work?

The Composio connector is one server. Your PayChasers account connects separately when Claude asks for it.
- If the browser does not open, or the link expires, ask Claude to retry the PayChasers connection.
- Composio creates a fresh PayChasers authorization link.
- Open that link in your browser and finish the PayChasers sign-in.

### 4. Why do PayChasers actions fail after they worked before?

The PayChasers connection can expire or lose permission.
- Ask Claude to inspect the PayChasers connection.
- If the connection is unhealthy, disconnect it when Claude prompts you.
- Reconnect the PayChasers account and retry the action.
- If Claude shows a permission prompt, approve it before Claude changes data in PayChasers.
- If the action still fails with a permission error, check that the connected account has that permission in PayChasers itself.

### 5. How do I switch to a different PayChasers account?

Claude can manage the PayChasers connection for you.
- Ask Claude to disconnect or delete the current PayChasers account.
- Ask Claude to connect PayChasers again.
- Open the new Composio authorization link for PayChasers.
- Sign in with the other PayChasers account in the browser.
- After the account connects, ask Claude to retry the PayChasers task.

### 6. Why is my PayChasers connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your PayChasers connection works in Claude Web, Desktop, and Cowork.
- In Claude Desktop, open Customize > Connectors.
- Next to Composio, click ⋮ and click Clear cache.
- If PayChasers tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
- On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect PayChasers.

## Creating MCP Server - Stand-alone vs Composio SDK

The PayChasers MCP server connects Claude Web, Desktop, and Cowork to your PayChasers account through Composio. Once connected, Claude can use the available PayChasers tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build PayChasers MCP Agent with another framework

- [ChatGPT Work](https://composio.dev/toolkits/paychasers/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/paychasers/framework/hermes-agent)

## Related Toolkits

- [Stripe](https://composio.dev/toolkits/stripe) - Stripe is a global online payments platform offering APIs for managing payments, customers, and subscriptions. Trusted by businesses for secure, efficient, and scalable payment processing worldwide.
- [44API](https://composio.dev/toolkits/44api) - 44API is an API service for validating VAT and tax identifiers and returning company details. Use it to verify business tax data and manage account IP whitelists quickly.
- [Airwallex](https://composio.dev/toolkits/airwallex) - Airwallex is a global financial platform providing business accounts, payments, payouts, FX, and cards. Built to simplify cross-border payments and streamline financial operations for businesses.
- [Aiwyn Tax MCP](https://composio.dev/toolkits/aiwyn_tax_mcp) - Aiwyn Tax MCP is a tax estimation service powered by Aiwyn's federal and state tax engine. It helps teams estimate tax outcomes without building tax calculation logic from scratch.
- [Alpaca](https://composio.dev/toolkits/alpaca) - Alpaca is a stock and crypto trading platform for commission-free trading, real-time market data, and algorithmic strategies. Use it to build brokerage apps, trading bots, and portfolio workflows with market connectivity.
- [Alpha vantage](https://composio.dev/toolkits/alpha_vantage) - Alpha Vantage is a financial data platform offering real-time and historical stock market APIs. Get instant, reliable access to equities, forex, and technical analysis data for smarter trading decisions.
- [Altoviz](https://composio.dev/toolkits/altoviz) - Altoviz is a cloud-based billing and invoicing platform for businesses. It streamlines online payments, expense tracking, and customizable invoice management.
- [Benzinga](https://composio.dev/toolkits/benzinga) - Benzinga provides real-time financial news and data APIs for market coverage. It helps you track breaking news and actionable market insights instantly.
- [Bigdata.com MCP](https://composio.dev/toolkits/bigdata_com_mcp) - Bigdata.com MCP provides grounded access to financial news, transcripts, filings, and entity intelligence. Ideal for building research workflows and generating timely market insights.
- [Billsby](https://composio.dev/toolkits/billsby) - Billsby is a subscription billing platform for managing customers, subscriptions, invoices, products, plans, usage counters, add-ons, and allowances. It helps SaaS and subscription teams automate billing operations without building complex billing logic from scratch.
- [Brex](https://composio.dev/toolkits/brex) - Brex provides corporate credit cards and spend management tailored for startups and tech businesses. It helps optimize company cash flow, streamline accounting, and accelerate business growth.
- [Cashfree Payments MCP](https://composio.dev/toolkits/cashfree_payments_mcp) - Cashfree Payments MCP is a merchant payments platform that handles collection, payouts, subscriptions, settlements, refunds, and identity verification. Simplifies merchant money lifecycle management with unified, API-driven workflows.
- [Chaser](https://composio.dev/toolkits/chaser) - Chaser is accounts receivable automation software that sends invoice reminders and helps businesses get paid faster. It streamlines the collections process to save time and improve cash flow.
- [Clarity AI MCP](https://composio.dev/toolkits/clarity_ai_mcp) - Clarity AI MCP is an MCP toolkit for simulating SFDR 2.0 fund classifications from a fund name, ISIN, or CUSIP. Use it to tap Clarity AI disclosure data and modeling without building custom sustainability-data workflows.
- [Clientary](https://composio.dev/toolkits/clientary) - Clientary is a platform for managing clients, invoices, projects, proposals, and more. It streamlines client work and saves you serious admin time.
- [Coinbase](https://composio.dev/toolkits/coinbase) - Coinbase is a platform for buying, selling, and storing cryptocurrency. It makes exchanging and managing crypto simple and secure for everyone.
- [Coinranking](https://composio.dev/toolkits/coinranking) - Coinranking is a comprehensive cryptocurrency market data platform offering access to real-time coin prices, market caps, and historical data. Get accurate, up-to-date stats for thousands of digital assets in one place.
- [Coupa](https://composio.dev/toolkits/coupa) - Coupa is a business spend management platform for procurement, invoicing, and expenses. It helps organizations streamline purchasing, control costs, and gain complete visibility over financial operations.
- [CurrencyScoop](https://composio.dev/toolkits/currencyscoop) - CurrencyScoop is a developer-friendly API for real-time and historical currency exchange rates. Easily access fiat and crypto data for smart, up-to-date financial applications.
- [Daffy](https://composio.dev/toolkits/daffy) - Daffy is a modern charitable giving platform with a donor-advised fund. Easily set aside funds, grow them tax-free, and donate to over 1.7 million U.S. charities.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and PayChasers MCP?

With a standalone PayChasers MCP server, the agents and LLMs can only access a fixed set of PayChasers tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from PayChasers and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right PayChasers tools.

### Can I manage the permissions and scopes for PayChasers while using Tool Router?

Yes, absolutely. You can configure which PayChasers scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your PayChasers data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)