How do I get my BILL Developer Key?

Log in to your BILL account as an administrator at **app.bill.com**. Navigate to **Settings → Sync & Integrations → Manage Developer Keys**. Click **Generate developer key**, accept the Terms of Service, and click **Generate key**. You will also find your **Organization ID** (starts with '008') on this same page. Copy both values and paste them into the configuration below.

Can my AI agent approve invoices and trigger payment runs?

Yes. Your AI agent can list pending invoices, review line-item details, and update approval statuses — all through natural conversation. It follows the same approval workflow rules configured in your BILL account, so no invoice gets paid without proper authorization. Payment operations respect your existing role-based permissions.

How do I quickly check which invoices are overdue during a financial review?

Just ask your AI agent 'Show me all overdue invoices.' It pulls your invoice list filtered by past-due status, showing vendor name, amount, due date, and days overdue — giving you actionable data in seconds without generating reports or exporting spreadsheets.

Can multiple team members use this with different permission levels?

Yes. BILL supports up to four developer keys per account. Each key inherits the permissions of the user who generated it. Finance managers can have full read-write access while auditors operate in read-only mode — ideal for growing companies, accounting firms, and multi-entity organizations.

Bill.com MCP Server for LlamaIndex 10 tools — connect in under 2 minutes

Name: Bill.com
Availability: InStock
Author: Vinkius

docs.llamaindex.ai/en/stable/module_guides/tools/mcp

Built by Vinkius GDPR 10 Tools Framework

LlamaIndex specializes in data-aware AI agents that connect LLMs to structured and unstructured sources. Add Bill.com as an MCP tool provider through Vinkius and your agents can query, analyze, and act on live data alongside your existing indexes.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    mcp_client = BasicMCPClient("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    agent = FunctionAgent(
        tools=tools,
        llm=OpenAI(model="gpt-4o"),
        system_prompt=(
            "You are an assistant with access to Bill.com. "
            "You have 10 tools available."
        ),
    )

    response = await agent.run(
        "What tools are available in Bill.com?"
    )
    print(response)

asyncio.run(main())

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Bill.com MCP Server

Connect BILL (Bill.com) to your AI agent and streamline your accounts payable and receivable workflows conversationally.

LlamaIndex agents combine Bill.com tool responses with indexed documents for comprehensive, grounded answers. Connect 10 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

What you can do

Invoice Management — List, create, and review vendor invoices with line-item details, due dates, and approval statuses.
Payment Approvals — Check pending approvals, review payment runs, and track sent payments across your organization.
Vendor Directory — Query your vendor database, view payment history, and manage vendor contacts.
AP/AR Analytics — Get instant insights into outstanding payables, overdue invoices, and cash flow projections.

The Bill.com MCP Server exposes 10 tools through the Vinkius. Connect it to LlamaIndex in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Bill.com to LlamaIndex via MCP

Follow these steps to integrate the Bill.com MCP Server with LlamaIndex.

Install dependencies

Run pip install llama-index-tools-mcp llama-index-llms-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 10 tools from Bill.com

Why Use LlamaIndex with the Bill.com MCP Server

LlamaIndex provides unique advantages when paired with Bill.com through the Model Context Protocol.

Data-first architecture: LlamaIndex agents combine Bill.com tool responses with indexed documents for comprehensive, grounded answers

Query pipeline framework lets you chain Bill.com tool calls with transformations, filters, and re-rankers in a typed pipeline

Multi-source reasoning: agents can query Bill.com, a vector store, and a SQL database in a single turn and synthesize results

Observability integrations show exactly what Bill.com tools were called, what data was returned, and how it influenced the final answer

Bill.com + LlamaIndex Use Cases

Practical scenarios where LlamaIndex combined with the Bill.com MCP Server delivers measurable value.

Hybrid search: combine Bill.com real-time data with embedded document indexes for answers that are both current and comprehensive

Data enrichment: query Bill.com to augment indexed data with live information before generating user-facing responses

Knowledge base agents: build agents that maintain and update knowledge bases by periodically querying Bill.com for fresh data

Analytical workflows: chain Bill.com queries with LlamaIndex's data connectors to build multi-source analytical reports

Bill.com MCP Tools for LlamaIndex (10)

These 10 tools become available when you connect Bill.com to LlamaIndex via MCP:

create_bill

Create a new bill

create_vendor

Create a new vendor

get_bill

Get bill details

get_company_profile

Get company profile

get_vendor

Get vendor details

list_bills

List all bills

list_customers

List all customers

list_invoices

List all invoices

list_payments

List all payments

list_vendors

List all vendors

Example Prompts for Bill.com in LlamaIndex

Ready-to-use prompts you can give your LlamaIndex agent to start working with Bill.com immediately.

"Show me all unpaid invoices from this month."

"What payments are pending approval?"

"List all vendors we've paid more than $10,000 this quarter."

Troubleshooting Bill.com MCP Server with LlamaIndex

Common issues when connecting Bill.com to LlamaIndex through the Vinkius, and how to resolve them.

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

Bill.com + LlamaIndex FAQ

Common questions about integrating Bill.com MCP Server with LlamaIndex.

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.

Can I combine MCP tools with vector stores?

Yes. LlamaIndex agents can query Bill.com tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.