Chaser MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Chaser MCP or direct API to automate invoice reminders, track outstanding payments, manage customer communications, and update invoice statuses through natural language.

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Chaser

Api Key

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.

30 Tools

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND

Chaser

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TOOLS

Supported Tools

Every Chaser action and event your agent gets out of the box.

Create Contact Person

Tool to create a new contact person for a customer in Chaser.

Create Invoice

Tool to create a new invoice record in the organization.

Create Overpayment

Creates a new overpayment record in Chaser for tracking customer overpayments.

Delete Contact Person

Tool to delete a contact person from a customer record in Chaser.

Get Contact Person by ID

Tool to get a specific contact person by ID for a customer.

Get Credit Note by ID

Retrieve detailed information for a specific credit note by its ID.

Get Credit Notes

Retrieves a list of credit notes from Chaser.

Get Current Organisation

Tool to retrieve information about the current organisation associated with the API credentials.

Get Customer by ID

Retrieve detailed information for a specific customer by their Chaser customer ID.

Get Customers

Tool to retrieve a list of all customers associated with the organization.

Get Invoice by ID

Tool to retrieve detailed information for a specific invoice by its ID.

Get Organization

Tool to retrieve information about the connected organizations.

Get Overpayment

Retrieve detailed information for a specific overpayment by its ID.

Get Status

Tool to check the status of the Chaser API.

List Contact Persons

Tool to retrieve contact persons for a specific customer.

List Invoices

Tool to retrieve invoices with pagination and filtering.

List Overpayments

Tool to retrieve overpayments from Chaser with pagination and filtering.

Create Credit Note

Creates a new credit note record in Chaser for tracking customer credits.

Create Customer

Tool to create a new customer record in Chaser.

Update Credit Note

Update an existing credit note in Chaser.

Update Customer

Tool to update an existing customer's information using their unique Chaser customer ID.

Update Invoice

Update an existing invoice in Chaser by its internal ID.

Update Contact Person

Tool to update a contact person for a customer in Chaser.

Update Overpayment

Tool to update an overpayment record in Chaser.

Upload Invoice PDF

Upload a PDF file to an existing invoice in Chaser.

Bulk Upsert Customers

Tool to bulk upsert up to 100 customers in a single operation.

Bulk Upsert Contact Persons

Tool to bulk insert or update contact persons for a customer.

Bulk Upsert Credit Notes

Tool to bulk upsert up to 100 credit notes in a single request.

Bulk Upsert Invoices

Tool to bulk upsert up to 100 invoices in a single request.

Bulk Upsert Overpayments

Tool to bulk upsert up to 100 overpayments in Chaser, matching by overpayment_id.

SETUP GUIDE

Connect Chaser MCP Tool with your Agent

Install Composio

typescript

npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp

Install the Composio SDK and Claude Agent SDK

Create Tool Router Session

typescript

import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });

console.log("Creating Tool Router session...");
const { mcp } = await composio.create('your-user-id');
console.log(`Tool Router session created: ${mcp.url}`);

Initialize the Composio client and create a Tool Router session

Connect to AI Agent

typescript

import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText, stepCountIs } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: mcp.url,
    headers: { 'x-api-key': 'your-composio-api-key' }
  }
});

const tools = await client.tools();

const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{ role: 'user', content: 'Create a new invoice for customer ACME Ltd for $500 due next week' }],
  stopWhen: stepCountIs( 5 )
});

console.log(`Agent: ${text}`);

Use the MCP server with your AI agent

SETUP GUIDE

Connect Chaser API Tool with your Agent

Install Composio

typescript

npm install @composio/openai

Install the Composio SDK

Initialize Composio and Create Tool Router Session

typescript

import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');

Import and initialize Composio client, then create a Tool Router session

Execute Chaser Tools via Tool Router with Your Agent

typescript

const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Send invoice reminders to all overdue customers this week'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);

Get tools from Tool Router session and execute Chaser actions with your Agent

Why Use Composio?

AI Native Chaser Integration

Supports both Chaser MCP and direct API based integrations
Structured, LLM-friendly schemas for reliable tool execution
Rich coverage for reading, writing, and querying your Chaser data

Managed Auth

Built-in OAuth handling with automatic token refresh and rotation
Central place to manage, scope, and revoke Chaser access
Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

Tools are tuned using real error and success rates to improve reliability over time
Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

Fine-grained RBAC so you control which agents and users can access Chaser
Scoped, least privilege access to Chaser resources
Full audit trail of agent actions to support review and compliance

FRAMEWORKS

Use Chaser with any AI Agent Framework

Choose a Framework you want to connect Chaser with

OpenAI Agents SDK

Use Chaser MCP with OpenAI Agents SDK

Claude Agents SDK

Use Chaser MCP with Claude Agents SDK

Claude Code

Use Chaser MCP with Claude Code

Claude Cowork

Use Chaser MCP with Claude Cowork

Codex

Use Chaser MCP with Codex

OpenClaw

Use Chaser MCP with OpenClaw

Hermes

Use Chaser MCP with Hermes

Google ADK

Use Chaser MCP with Google ADK

Langchain

Use Chaser MCP with Langchain

AI SDK

Use Chaser MCP with AI SDK

Mastra AI

Use Chaser MCP with Mastra AI

LlamaIndex

Use Chaser MCP with LlamaIndex

CrewAI

Use Chaser MCP with CrewAI

Pydantic AI

Use Chaser MCP with Pydantic AI

Autogen

Use Chaser MCP with Autogen

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Stripe

Api KeyOauth2

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

Api Key

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.

Aiwyn Tax MCP

No Auth

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

Api KeyOauth2

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.

FAQ

Frequently asked questions

Yes, Chaser requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Start with Chaser.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Chaser tool your agent needs.Free to start.

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Chaser MCP for AI Agents

Try Chaser now

Supported Tools

Connect Chaser MCP Tool with your Agent

Install Composio

Create Tool Router Session

Connect to AI Agent

Connect Chaser API Tool with your Agent

Install Composio

Initialize Composio and Create Tool Router Session

Execute Chaser Tools via Tool Router with Your Agent

Why Use Composio?

AI Native Chaser Integration

Managed Auth

Agent Optimized Design

Enterprise Grade Security

Use Chaser with any AI Agent Framework

OpenAI Agents SDK

Claude Agents SDK

Claude Code

Claude Cowork

Codex

OpenClaw

Hermes

Google ADK

Langchain

AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

Autogen

Explore Other Toolkits

Stripe

44API

Aiwyn Tax MCP

Alpaca

Frequently asked questions

Do I need my own developer credentials to use Chaser with Composio?+

Can I use multiple toolkits together?+

Is Composio secure?+

What if the API changes?+

Start with Chaser.It takes 30 seconds.