canonical: https://jentic.com/apis/sumit.co.il/sumit-co-il

# Sumit API

Sumit office management and billing platform API for managing customers, invoices, and business operations. The API exposes 15 endpoints secured with apiKey authentication.

## For AI agents

Programmatically create customer, list customers. Covers 15 operations with apiKey authentication.

## Scope

Does not handle communications, crm, or developer tools - use for payments only.

## Capabilities

- Create customer
- List customers
- Get customer
- Update customer
- Delete customer

## Use cases

### Payments Operations

Use the Sumit API to perform payments operations programmatically. The API provides 15 endpoints covering core functionality including create customer, list customers, get customer.

Example prompt: Call POST /customers to create customer

### Automated Customers Management

Automate customers operations by combining multiple Sumit API endpoints. Agents can list customers and then get customer in a single workflow.

Example prompt: Call GET /customers to list customers, then verify the result

### AI Agent Integration via Jentic

AI agents discover and call Sumit API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle apiKey tokens manually.

Example prompt: Search Jentic for 'create customer', load the operation schema, and execute with Jentic-managed credentials

## Key endpoints

| Method | Path | Description |
| --- | --- | --- |
| POST | `/customers` | Create customer |
| GET | `/customers` | List customers |
| GET | `/customers/{customerId}` | Get customer |
| PUT | `/customers/{customerId}` | Update customer |
| DELETE | `/customers/{customerId}` | Delete customer |
| POST | `/invoices` | Create invoice |
| GET | `/invoices` | List invoices |
| GET | `/invoices/{invoiceId}` | Get invoice |

## Key resources

- **Customers** — Customer management operations
- **Invoices** — Invoice and billing operations
- **Documents** — Document management
- **Payments** — Payment processing

## Why Jentic

- **Setup:** Wiring the Sumit API by hand means sending your key in the X-API-Key header on every call and tracking customer and invoice ids yourself. Through Jentic you install once, import the Sumit API from the API Directory, store the key once, and your agent calls it.
- **Permission scoping:** Sumit puts the customer id in the URL path (`/customers/{customerId}`), so a rule can pin your agent to one customer: it can read and update that customer and nothing else. You choose the operations it may call, so destructive ones like deleting a customer are not included unless you add them.
- **Credential handling:** Your Sumit API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
- **Discovery method:** Agents search Jentic by intent such as 'create a customer' or 'issue an invoice', and Jentic returns the matching Sumit operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

## Related APIs

- **Stripe** — Alternative payments API
- **Adyen** — Alternative payments API
- **Square** — Complementary payments API
- **Paypal** — Complementary payments API

## FAQ

### What authentication does the Sumit API use?

The Sumit API uses an API key passed in the `X-API-Key` header. Through Jentic, these credentials are stored encrypted in your Jentic One instance and injected at execution time, so raw secrets never enter the agent context.

### Can I create customer with the Sumit API?

Yes. Use the POST /customers endpoint. The API returns structured JSON responses that agents can parse and act on directly.

### What are the rate limits for the Sumit API?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

### How do I create customer through Jentic?

Install the Jentic SDK with pip install jentic, authenticate through Jentic One, the self-hosted execution layer, then search for 'create customer'. Jentic returns the matching Sumit API operation with its input schema. Load the schema and execute the call - credentials are injected automatically.

### How many endpoints does the Sumit API have?

The Sumit API exposes 15 endpoints covering customers, invoices, documents operations.

### Can I limit what my agent is allowed to do with the Sumit API?

Yes. Because Jentic One is self-hosted, you decide which Sumit operations your agent may call, so you can grant read and update on customers and invoices while leaving destructive calls like DELETE `/customers/{customerId}` out unless you add them. Since Sumit puts the customer id in the URL path (`/customers/{customerId}`), your own rules can pin the agent to a single customer, letting it read and update that record and nothing else. Your API key stays with your instance and is injected only for the operations you allow.