Install Jentic One Beta

Connect the Partial.ly Payment Plans API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Partial.ly Payment Plans 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.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fpartial.ly%2Fpartially" | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fpartial.ly%2Fpartially" | sh
jentic register       # connects your agent to your Jentic One instance

Jentic 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.

Capabilities

What an agent can do with Partial.ly Payment Plans API.

Create flexible payment plan offers with custom installment schedules

Process installment payments and track payment status

List and manage customer payment subscriptions

Retrieve payment plan details including schedules and balances

Update payment plan terms and installment dates

GET STARTED

Start building with Partial.ly Payment Plans API

Explore with Jentic One

View OpenAPI Document

Use Cases

Patterns agents use Partial.ly Payment Plans API for, with concrete tasks.

★ E-Commerce Installment Payments

Offer buy-now-pay-later options at checkout by creating payment plan offers via POST /offer. Configure installment count, frequency, and down payment amounts, then redirect customers to the generated checkout URL. Track payment completion via GET /offer/{id} and process installments automatically or manually as they come due.

POST /offer with amount, installment count, and customer details, then redirect to checkout URL

Subscription-Based Payment Plans

Manage recurring installment subscriptions for ongoing services or memberships. GET /plan lists all active payment plans with filtering by customer or status. Update plan terms via PATCH /plan/{id} to adjust installment amounts or schedules. Cancel plans with DELETE /plan/{id} when customers end subscriptions.

GET /plan?status=active to list subscriptions, then PATCH /plan/{id} to update terms or DELETE to cancel

Automated Payment Collection

Process scheduled installment payments automatically by integrating with Partial.ly's payment processing. POST /payment/{plan_id}/charge triggers payment collection for the next installment due. Configure webhooks to receive notifications when payments succeed or fail, enabling automated retry logic and customer follow-up.

POST /payment/{plan_id}/charge to process due installment, handle webhook for success/failure, trigger retries

AI-Driven Payment Plans via Jentic

An AI agent managing e-commerce or billing workflows can create payment plans, process installments, send reminders, and track payment status through Jentic without holding Partial.ly API keys in context. Jentic resolves intents like 'offer a 12-month payment plan' to POST /offer with the appropriate schema.

Search Jentic for 'create a payment plan', load POST /offer schema, and execute with customer and installment details

Key Endpoints

11 endpoints — jentic publishes the only available openapi specification for partial.

METHOD

PATH

DESCRIPTION

POST

/offer

Create a new payment plan offer

GET

/offer

List all payment plan offers with filtering

GET

/offer/{id}

Retrieve details of a specific payment plan offer

GET

/plan

List all active payment plans

GET

/plan/{id}

Retrieve a specific payment plan with schedule and status

PATCH

/plan/{id}

Update payment plan terms

DELETE

/plan/{id}

Cancel a payment plan

POST

/payment/{plan_id}/charge

Process the next installment payment

POST

/offer

Create a new payment plan offer

GET

/offer

List all payment plan offers with filtering

GET

/offer/{id}

Retrieve details of a specific payment plan offer

GET

/plan

List all active payment plans

GET

/plan/{id}

Retrieve a specific payment plan with schedule and status

PATCH

/plan/{id}

Update payment plan terms

DELETE

/plan/{id}

Cancel a payment plan

POST

/payment/{plan_id}/charge

Process the next installment payment

Why Jentic?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring the Partial.ly Payment Plans API by hand means learning its bearer token auth, setting the partial.ly/api host, and building charge and error-handling logic yourself. Through Jentic you install once, import Partial.ly from the API Directory, store the token once, and your agent calls it.

Permission scoping

Partial.ly puts the plan id in the URL path (/plan/{id}), so a rule can pin your agent to one payment plan for reads and updates. You choose the operations it may call, so destructive ones like deleting a plan or charging a plan are not included unless you add them.

Credential isolation

Your Partial.ly 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.

Intent-based discovery

Agents search Jentic by intent such as 'create a payment plan offer' or 'charge an installment on a plan', and Jentic returns the matching Partial.ly operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

Stripe API

Full-featured payment processing with subscriptions, invoicing, and checkout

Use Stripe for one-time payments and standard subscriptions; use Partial.ly for custom installment payment plans with flexible schedules

Alternative

Affirm API

Point-of-sale financing and installment loans for e-commerce

Choose Affirm for consumer credit-based installments; choose Partial.ly for merchant-funded payment plans without credit checks

FAQs

Specific to using Partial.ly Payment Plans API through Jentic.

Why is there no official OpenAPI spec for Partial.ly API?

Partial.ly publishes API documentation at https://developer.partial.ly but not a structured OpenAPI specification. Jentic generates and maintains this spec based on Partial.ly's documentation so that AI agents and developers can call Partial.ly API via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the Partial.ly API use?

The Partial.ly API uses API key authentication passed in the Authorization header. Retrieve your API key from your Partial.ly merchant account settings. Through Jentic, the key lives in the encrypted vault and is injected at execution time so it never enters agent context.

Can I customize the installment schedule?

Yes. When creating an offer via POST /offer, you can specify installment count, frequency (weekly, bi-weekly, monthly), down payment amount, and installment amounts. The API supports flexible payment schedules tailored to your business needs.

How do I process an installment payment?

Use POST /payment/{plan_id}/charge to trigger payment processing for the next scheduled installment. Partial.ly will charge the customer's saved payment method and return the transaction status. Configure webhooks to receive real-time payment success or failure notifications.

Can customers manage their own payment plans?

Partial.ly provides customer-facing interfaces where customers can view their payment schedules, make early payments, and update payment methods. The API focuses on merchant-side plan management and payment processing. Use the customer portal URL from the plan object for customer self-service.

What are the rate limits for the Partial.ly API?

Partial.ly does not publish specific rate limits in their public documentation. Use reasonable request patterns and implement retry logic for rate limit responses. Contact Partial.ly support for merchant-specific rate limit information and enterprise volume handling.

Can I limit what my agent is allowed to do with the Partial.ly Payment Plans API?

Yes. Jentic One runs self-hosted on your own infrastructure, so your rules decide which Partial.ly operations and credentials the agent may use. Because Partial.ly puts the plan id in the URL path, such as GET /plan/{id} and PATCH /plan/{id}, you can pin the agent to a single payment plan for reads and updates. You also choose the exact operations it can call, so destructive ones like DELETE /plan/{id} or POST /payment/{plan_id}/charge stay off the list unless you add them.

Partial.ly Payment Plans API

Name: Partial.ly Payment Plans API
Brand: Partial.ly Payment Plans API
Availability: InStock

Agent-ready OpenAPI document · curated by JenticPaymentsBilling SubscriptionsapiKey11 EndpointsREST

Know of an official OpenAPI document? Contribute it →

For Agents

Create payment plan offers, process installment payments, manage customer subscriptions, and track payment schedules across 11 endpoints.

Use for: Create a 6-month payment plan for a customer, Check the status of a payment plan, Process the next installment payment, List all active payment plans

Not supported: Covers payment plan offer creation, installment processing, subscription management, and payment tracking. Does not handle credit underwriting, fraud detection, or direct payment gateway integration - use for installment payment plan workflows only.

Jentic publishes the only available OpenAPI specification for Partial.ly API, keeping it validated and agent-ready. Partial.ly is a payment plan solution that allows businesses to offer installment payment options to customers. The API provides programmatic access to payment plan offers, installment schedules, customer subscriptions, payment processing, and plan management, enabling automated buy-now-pay-later workflows integrated into e-commerce and billing systems.

Jentic One on Github View OpenAPI Document