Bill AR | Customer transactions

Name: AR | Customer transactions API
Brand: AR | Customer transactions
Availability: InStock

★ Only Publicly Available OpenAPI DocumentFinanceAccountingapiKey40 EndpointsREST

For Agents

Send customer invoices, run recurring billing, charge authorised customers, and reconcile received payments through BILL's AR API.

Install Jentic One Beta

Connect the AR | Customer transactions to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the AR | Customer transactions, 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://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# 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 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 AR | Customer transactions API.

Create, update, and bulk-modify customer invoices and recurring invoice schedules

Send invoices to customers by email or postal mail and capture customer charge authorisations

Charge authorised customers and record AR payments against the originating invoice

GET STARTED

Start building with AR | Customer transactions API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI specification for AR | Customer transactions, keeping it validated and agent-ready. The BILL main bundle exposes the Accounts Receivable surface that automates how an organisation invoices customers and collects what is owed. Agents can create one-off and recurring invoices, issue credit memos, send invoices by email or postal mail, charge authorised customers, and record received payments back into the BILL ledger. Invoice credits, received payments, conversion fees, and a top-line AR summary are also exposed for reconciliation.

Use Cases

Patterns agents use AR | Customer transactions API for, with concrete tasks.

★ Automated subscription invoicing

Generate and dispatch recurring invoices for subscription customers and post received payments back to the ledger. The API creates RecurringInvoice schedules, sends each cycle's Invoice via SendInvoice or MailInvoice, and writes a ReceivedPay record once funds clear. A small finance team can manage hundreds of recurring customers without hand-keying invoices.

Create a RecurringInvoice for customer ID 0cu01AAAAA at $299/month with email delivery, then verify the next-run date populated correctly

AR collection on authorised customers

Charge authorised customers' bank accounts and reconcile inflows against open invoices. The agent calls SetCustomerAuthorization to capture mandate, ChargeCustomer to debit, and RecordARPayment to mark the invoice settled. This closes the AR loop end-to-end through one API surface.

Call ChargeCustomer for invoice 00n01AAAAA against the authorised bank mandate, then call RecordARPayment with the returned reference

Credit memo and adjustment workflow

Apply credit memos for disputed, returned, or partially refunded services, and audit the resulting credits. The API exposes Crud/Create/CreditMemo plus Read and List operations on InvoiceCredit so an agent can reverse charges and confirm the credit posted, useful for AR teams managing chargebacks or pricing corrections.

Create a $75 CreditMemo against invoice 00n01AAAAA, then call List/InvoiceCredit to confirm the credit posted to the customer record

Cash-flow reporting for finance agents

Pull a consolidated AR position on demand. GetARSummary returns aggregate balances and aging while List/ReceivedPay enumerates inflows over a window. A finance agent can answer 'how much is outstanding?' or feed a weekly cash-flow brief without the user opening BILL.

Call GetARSummary for the connected organisation and return total outstanding balance plus current-period received payment total

Agent-driven AR operations via Jentic

An AI agent uses Jentic to discover BILL operations from a natural-language intent like 'send a customer invoice'. Jentic returns the matching SendInvoice operation, loads its input schema, and executes the call with credentials held in the Jentic vault. The agent can chain Create + Send + RecordARPayment with no direct exposure to BILL session tokens.

Search Jentic for 'send a customer invoice', load the SendInvoice schema, and execute it for invoice 00n01AAAAA

Key Endpoints

40 endpoints — jentic publishes the only available openapi specification for ar | customer transactions, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/Crud/Create/Invoice.json

Create a customer invoice

POST

/Crud/Create/RecurringInvoice.json

Create a recurring invoice schedule

POST

/SendInvoice.json

Email an invoice to the customer

POST

/ChargeCustomer.json

Charge an authorised customer

POST

/RecordARPayment.json

Record a payment received against an invoice

POST

/Crud/Create/CreditMemo.json

Issue a credit memo

POST

/GetARSummary.json

Retrieve consolidated AR summary

POST

/Crud/Create/Invoice.json

Create a customer invoice

POST

/Crud/Create/RecurringInvoice.json

Create a recurring invoice schedule

POST

/SendInvoice.json

Email an invoice to the customer

POST

/ChargeCustomer.json

Charge an authorised customer

POST

/RecordARPayment.json

Record a payment received against an invoice

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

BILL developer keys and session tokens are encrypted in the Jentic vault. Agents receive a scoped reference and never see the raw key, so a leaked context cannot replay AR charges.

Intent-based discovery

Agents search Jentic with intents like 'send a customer invoice' and Jentic returns the matching BILL operation with its input schema, removing the need to read BILL's developer portal.

Time to first call

Direct BILL integration: 3-5 days to handle session login, error mapping, and bulk batching. Through Jentic: under 1 hour to the first invoice send.

FAQs

Specific to using AR | Customer transactions API through Jentic.

Why is there no official OpenAPI spec for AR | Customer transactions?

BILL does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call AR | Customer transactions via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the BILL main API use?

BILL uses an API key plus session token model. Agents log in once to obtain a session token and pass it with each call alongside the developer key. Through Jentic these credentials sit encrypted in the vault and the agent only ever holds a scoped reference.

Can I create recurring invoices through the BILL main API?

Yes. Call POST /Crud/Create/RecurringInvoice.json with the customer ID, frequency, and line items. POST /Crud/Update/RecurringInvoice.json adjusts an existing schedule and POST /List/RecurringInvoice.json enumerates active schedules.

How do I charge a customer through Jentic?

Search Jentic for 'charge a customer in bill.com'. Jentic returns the ChargeCustomer operation, loads its schema, and your agent calls POST /ChargeCustomer.json with the customer ID and amount, then posts the receipt with POST /RecordARPayment.json.

What rate limits apply to the BILL main API?

BILL applies per-organisation throttling on the v2 API. Specific quotas are not exposed in the spec. For higher throughput use the Bulk/Crud endpoints (for example POST /Bulk/Crud/Create/Invoice.json) rather than looping single creates.

Is the BILL main API free?

API access is bundled with paid BILL plans rather than a separate free tier. You need an active BILL organisation plus a developer key. Jentic does not add usage charges on top of the underlying plan.

Bill AR | Customer transactions

Connect the AR | Customer transactions to your agent

Capabilities

Start building with AR | Customer transactions API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs