Elorus plugin

Use Elorus through Corsair: one client, typed API calls. Connect an Elorus API token and the organization ID used in the required X-Elorus-Organization header. The API key is stored as the secret; the organization ID is a separate account field. List endpoints support page and page_size pagination (maximum 250). Tracking-category filters use dynamic keys such as tc_12345; unrelated query keys are rejected. API v1.1 remains in maintenance until December 31, 2026; v1.2 is the current API. What you get:

457 typed API operations

Setup

Install

npm install corsair @corsair-dev/elorus better-sqlite3
npm install --save-dev @types/better-sqlite3

yarn add corsair @corsair-dev/elorus better-sqlite3
yarn add --dev @types/better-sqlite3

pnpm install corsair @corsair-dev/elorus better-sqlite3
pnpm install --save-dev @types/better-sqlite3

bun add corsair @corsair-dev/elorus better-sqlite3
bun add --dev @types/better-sqlite3

Add the plugin

corsair.ts

import Database from 'better-sqlite3';
import { createCorsair } from 'corsair';
import { elorus } from '@corsair-dev/elorus';

export const corsair = createCorsair({
	plugins: [
		elorus(),
	],
	database: new Database('corsair.db'),
	kek: process.env.CORSAIR_KEK!,
	multiTenancy: true,
	hub: {
		projectApiKey: process.env.CORSAIR_API_KEY!,
		signingSecret: process.env.CORSAIR_SIGNING_SECRET!,
	},
});

With multiTenancy: true, scope calls with corsair.withTenant(id). See Quick start for KEK + Hub keys, and Multi-tenancy for account isolation.

Choose authentication

API Key (Recommended)

Store the Elorus API key before the first call: pnpm corsair setup --plugin=elorus --tenant=acme api_key=<your-key> (leave out --tenant without multiTenancy), or pass it as key in the plugin options. With Hub, each tenant enters their own key on the connect page. See API key auth.

elorus()

More: API Key

Connect a tenant

Mint a connect link and send the tenant to it. Hub hosts the page and delivers the result to your app — see Connect / OAuth.

const { connectUrl } = await corsair.manage.connect.createLink({
	plugin: 'elorus',
	tenantId: 'acme',
});
// redirect the user's browser to connectUrl

Example API calls

Retrieve bill email settings

const tenant = corsair.withTenant('acme');
await tenant.elorus.api.v12.bills_email_read({
	path: { id: 'demo' },
});

Create a bill

const tenant = corsair.withTenant('acme');
await tenant.elorus.api.v12.bills_create({
	body: {
		supplier: 'demo',
		items: [],
	},
});

See the full list on the API page.

What’s next

API reference

Every elorus.api.* operation with input and output types.

Connect / OAuth

createLink, Hub delivery, and tenant connect flows.

Use with agents

Expose this plugin’s operations as MCP tools.

Overview

Plugins