AP | Vendor management

Name: AP | Vendor management API
Brand: AP | Vendor management
Availability: InStock

★ Only Publicly Available OpenAPI DocumentFinanceAccountingapiKey16 EndpointsREST

For Agents

Onboard vendors, attach their bank account details, and keep vendor records in sync with the procurement system inside BILL.

Quickstart

Get started with AP | Vendor management in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"onboard a vendor in bill.com"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with AP | Vendor management API.

Create and update vendor records individually or in bulk batches

Soft-delete and undelete vendors to preserve historical AP audit trail

Attach vendor bank accounts that drive ACH payment routing

List vendors and vendor bank accounts for reconciliation against the master data source

GET STARTED

Start building with AP | Vendor management API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for AP | Vendor management, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for AP | Vendor management, keeping it validated and agent-ready. This BILL surface manages the vendors an organisation pays and the bank accounts attached to those vendors. Agents create, update, and bulk-load Vendor records, soft-delete or restore them to preserve audit trail, and add or remove the VendorBankAccount records that determine where ACH payments land. It is the prerequisite layer for every AP payment workflow.

Use Cases

Patterns agents use AP | Vendor management API for, with concrete tasks.

★ Vendor onboarding from procurement

Sync new vendors from a procurement system into BILL the moment a master record is approved. The API exposes Crud/Create/Vendor and Bulk/Crud/Create/Vendor so an agent can mirror Coupa or NetSuite vendor data into BILL ahead of the first bill being raised. This removes the manual data-entry step that often delays vendor go-live.

Call Bulk/Crud/Create/Vendor.json with 20 vendor records exported from procurement, then call List/Vendor to confirm they are active

Vendor bank account attachment

Attach the correct bank account to each vendor so ACH payment runs land at the right destination. The API exposes Crud/Create/VendorBankAccount and Bulk/Crud/Create/VendorBankAccount for batch loads, plus Crud/Read and List variants for verification. Useful when finance ops needs to validate vendor banking before a payment run.

Call Crud/Create/VendorBankAccount.json for vendor ID 0vd01AAAAA with the routing and account numbers from the vendor portal, then verify with Crud/Read/VendorBankAccount

Vendor master data audit

Audit the full vendor list against an external source of truth such as the ERP. Calling List/Vendor returns active vendors and their key attributes, while List/VendorBankAccount returns the banking detail. An agent can flag mismatches and call Crud/Update/Vendor or Crud/Delete/Vendor to remediate.

Call List/Vendor and List/VendorBankAccount, then identify vendors whose banking detail is missing

Soft-delete and restoration

Retire vendors that are no longer active without breaking the AP audit trail. Crud/Delete/Vendor performs a soft delete that hides the vendor from new bill creation but preserves the historical record. Crud/Undelete/Vendor restores a vendor if a relationship resumes.

Call Crud/Delete/Vendor for vendor ID 0vd02AAAAA, then verify with Crud/Read/Vendor that the record is marked inactive

Agent-driven vendor onboarding via Jentic

An AI agent uses Jentic to discover vendor operations from intents like 'onboard a vendor in BILL'. Jentic returns the matching Crud/Create/Vendor operation, loads its schema, and executes with credentials from the vault. The agent can stand up a vendor record plus its bank account in two chained calls.

Search Jentic for 'onboard a vendor in bill.com', load the Crud/Create/Vendor schema, and execute it for vendor 'Acme Supplies Ltd'

Key Endpoints

16 endpoints — jentic publishes the only available openapi specification for ap | vendor management, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/Crud/Create/Vendor.json

Create a vendor record

POST

/Bulk/Crud/Create/Vendor.json

Bulk create vendor records

POST

/Crud/Update/Vendor.json

Update a vendor record

POST

/List/Vendor.json

List vendor records

POST

/Crud/Delete/Vendor.json

Soft-delete a vendor

POST

/Crud/Create/VendorBankAccount.json

Attach a bank account to a vendor

POST

/Crud/Read/VendorBankAccount.json

Read a vendor bank account

POST

/List/VendorBankAccount.json

List vendor bank accounts

POST

/Crud/Create/Vendor.json

Create a vendor record

POST

/Bulk/Crud/Create/Vendor.json

Bulk create vendor records

POST

/Crud/Update/Vendor.json

Update a vendor record

POST

/List/Vendor.json

List vendor records

POST

/Crud/Delete/Vendor.json

Soft-delete a vendor

Why though Jentic?

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

Credential isolation

Vendor banking detail is sensitive data. Jentic keeps the BILL session token encrypted in the vault and only releases a scoped reference at execution time, so a leaked agent context cannot enumerate vendor bank accounts.

Intent-based discovery

Agents search intents like 'onboard a vendor' or 'add a vendor bank account' and Jentic returns the matching Crud/Create operation with its input schema, so the agent does not need to read BILL's developer portal.

Time to first call

Direct BILL integration: 1-2 days to model the vendor + bank account pair with bulk variants. Through Jentic: under 20 minutes to the first vendor created.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

BILL AP Vendor Transactions

Vendor transactions raise bills and pay vendors created here.

Use vendor-management to onboard the vendor first; then use vendor-transactions to record bills and pay them.

Alternative

Xero Accounting

Xero stores vendor (contact) records at the ledger level.

Choose Xero when the books own the contact record; choose BILL vendor-management when BILL is the AP system of record.

Complementary

BILL Organization Accounts Tracking

Tracking dimensions are referenced when bills are coded against vendors.

Use accounts-tracking to set up GL accounts before paying vendors against the correct cost centre.

FAQs

Specific to using AP | Vendor management API through Jentic.

Why is there no official OpenAPI spec for AP | Vendor management?

BILL does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call AP | Vendor management 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 Vendor Management API use?

BILL uses an API key plus session token model. Agents authenticate once to obtain a session token and pass it on each call alongside the developer key. Jentic stores both encrypted in the vault and exposes only a scoped reference to the agent.

Can I bulk-import vendors with this API?

Yes. POST /Bulk/Crud/Create/Vendor.json accepts a batch of vendor records in one call. POST /Bulk/Crud/Create/VendorBankAccount.json does the same for banking detail, which is faster than serial creates when migrating from another AP system.

How do I add a vendor bank account through Jentic?

Search Jentic for 'add a vendor bank account in bill.com'. Jentic returns the Crud/Create/VendorBankAccount operation, loads its schema, and your agent calls POST /Crud/Create/VendorBankAccount.json with the vendor ID, routing number, and account number.

What rate limits apply to this API?

BILL applies per-organisation throttling. Specific quotas are not exposed in the spec, so prefer POST /Bulk/Crud/Create/Vendor.json over looped single-create calls during a vendor migration.

Is the AP Vendor Management API free?

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