Elorus MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Elorus MCP or direct API to generate invoices, log billable hours, fetch client balances, and manage payments through natural language.

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Api Key

Elorus is an online invoicing and time-tracking software for freelancers and small businesses. Easily manage finances, bill clients, and track work in one place.

13 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
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TOOLS

Supported Tools

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

Create Invoice

Creates a new invoice or receipt in Elorus.

CREATE_PRODUCT

Create a new product or service in Elorus.

Email Invoice

Tool to email an existing invoice to specified contacts.

Get Bills

Retrieve a paginated list of bills (expenses/purchases) from Elorus.

Get Contacts

Tool to retrieve a list of contacts.

Get Credit Notes

Tool to retrieve a list of credit notes.

Get Email Templates

Tool to retrieve a list of email templates.

Get Estimates

Tool to retrieve a list of estimates.

Get Invoices

Retrieves a paginated list of invoices from Elorus with flexible filtering options.

Get Products

Tool to retrieve a list of products/services with optional filtering, sorting, and pagination.

Get Taxes

Tool to retrieve a list of taxes.

Get Templates

Retrieves document templates used for formatting invoices, estimates, credit notes, and other business documents in Elorus.

Update Contact

Update an existing contact in Elorus by ID.

SETUP GUIDE

Connect Elorus MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["elorus"],
  mcp: true,
});
Create a session scoped to Elorus and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Generate a new invoice for client Acme Corp with today's date and send via email.",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Elorus request
SETUP GUIDE

Connect Elorus API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

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

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["elorus"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Elorus
3

Run Elorus tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Generate a new invoice for client Acme Corp with today's date and send via email." }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Elorus tool calls through the session, and print the final answer

Why Use Composio?

AI Native Elorus Integration

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

Managed Auth

  • Built-in API key management with secure storage and rotation
  • Central place to manage, scope, and revoke Elorus 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 Elorus
  • Scoped, least privilege access to Elorus resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

Yes, Elorus 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.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Elorus connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

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

Create the key in your Elorus account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Elorus actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Elorus at any time.

When you connect a Elorus account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Elorus as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Elorus. If Elorus lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Elorus at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Elorus connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Elorus rejects the old key. Create a new key in Elorus and reconnect the account from the Composio dashboard or by asking your agent to reconnect Elorus. Nothing else changes.

Composio's free plan includes 100,000 tool calls per month with no credit card, which covers most personal Elorus use. Paid plans add higher limits and team features. Your Elorus plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Elorus accounts).

With Composio, you connect Elorus once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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