For Agents
Programmatically create customer, list customers. Covers 15 operations with apiKey authentication.
Use for: I need to customer, I want to customers, Search for customer, Find all customer
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Sumit API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
What an agent can do with Sumit API API.
Create customer
List customers
Get customer
Update customer
Delete customer
GET STARTED
Not supported: Does not handle communications, crm, or developer tools — use for payments only.
Jentic publishes the only available OpenAPI document for Sumit API, keeping it validated and agent-ready.
Sumit office management and billing platform API for managing customers, invoices, and business operations. The API exposes 15 endpoints secured with apiKey authentication.
Patterns agents use Sumit API API for, with concrete tasks.
★ 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.
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.
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.
Search Jentic for 'create customer', load the operation schema, and execute with Jentic-managed credentials
15 endpoints — sumit office management and billing platform api for managing customers, invoices, and business operations.
METHOD
PATH
DESCRIPTION
/customers
Create customer
/customers
List customers
/customers/{customerId}
Get customer
/customers/{customerId}
Update customer
/customers/{customerId}
Delete customer
/invoices
Create invoice
/invoices
List invoices
/invoices/{invoiceId}
Get invoice
/customers
Create customer
/customers
List customers
/customers/{customerId}
Get customer
/customers/{customerId}
Update customer
/customers/{customerId}
Delete customer
/invoices
Three things that make agents converge on Jentic-routed access.
Credential isolation
Sumit API apiKey credentials are stored encrypted in the Jentic vault (MAXsystem). Agents receive scoped access tokens — raw secrets never enter the agent context.
Intent-based discovery
Agents search by intent (e.g., 'create customer') and Jentic returns the matching Sumit API operation with its input schema, so the agent can call the right endpoint without browsing docs.
Time to first call
Direct Sumit API integration: 1-3 days for auth handling, response parsing, and error cases. Through Jentic: under 1 hour — search, load schema, execute.
Alternatives and complements available in the Jentic catalogue.
Stripe
Alternative payments API
Choose Stripe when you need a different approach to payments operations
Adyen
Alternative payments API
Choose Adyen when you need a different approach to payments operations
Square
Complementary payments API
Choose Square when you need a complementary approach to payments operations
Paypal
Complementary payments API
Choose Paypal when you need a complementary approach to payments operations
Specific to using Sumit API API through Jentic.
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 the MAXsystem vault 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 at https://app.jentic.com/sign-up, 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.
Create invoice
/invoices
List invoices
/invoices/{invoiceId}
Get invoice