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BILL Spend and Expense (BYOK) icon

BILL Spend and Expense (BYOK)

Read your BILL Spend & Expense budgets, card transactions, reimbursements and users with your own Spend & Expense API token

Unify Dynamics LLC

Tools7read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderBILL Spend and Expenseunofficial, not affiliated
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Which budgets are set up in BILL Spend & Expense?
Tools called
list_budgets
Show BILL budget bud_1.
Tools called
get_budget
What card spending did we have this week in BILL Spend & Expense?
Tools called
list_transactions
Show BILL transaction tx_1.
Tools called
get_transaction
Which reimbursements are pending in BILL Spend & Expense?
Tools called
list_reimbursements
Show BILL reimbursement re_1.
Tools called
get_reimbursement

About

BILL Spend and Expense (BYOK) lets an AI assistant read your own BILL Spend and Expense data through the BILL Spend and Expense API with a key you supply (Spend & Expense API token). Read-only: 7 tools (list_budgets, get_budget, list_transactions, get_transaction, list_reimbursements, get_reimbursement, list_users). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to gateway.prod.bill.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by BILL Spend and Expense. BILL Spend and Expense and its logos are trademarks of their owners and are used only to say which service the connector works with.

Sources: Live from the BILL Spend and Expense API (gateway.prod.bill.com) with a BYOK key; documentation: https://developer.bill.com/docs/spend-expense-api. Endpoints checked against that documentation on 2026-10-16.

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.

What it can do

7 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Read your data7 tools
  • List budgetsList spend budgets with name, period, limit, per-transaction cap, receipt rule and retired flag.
  • Get budgetGet one budget by id: name, period, limit, per-transaction cap and receipt rule.
  • List transactionsList card transactions with time, merchant, amount, fees, status, budget, user and receipt status.
  • Get transactionGet one card transaction by id with merchant, amount, fees, status, budget, user and receipt status.
  • List reimbursementsList out-of-pocket reimbursement requests with amount, merchant, note, submitted date, status, type and budget.
  • Get reimbursementGet one reimbursement by id with amount, merchant, note, dates, status, type, budget and user.
  • List usersList Spend & Expense users with id, name, role, retired flag and creation time (no contact or birth details).

Information

PublisherUnify Dynamics LLC
CategoryMoney & business
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://byok-bill-spend-expense.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide
FunctionOther
LayerDeep connectors

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Get BILL Spend and Expense (BYOK)

Free · BYOK · Read-only

BYOK: bring your own keyThis connector uses your own BILL Spend and Expense Spend & Expense API token. Create one at https://developer.bill.com/docs/authentication-with-api-token, with the fewest permissions it needs (read-only if the provider offers it). Your assistant sends it in the X-Upstream-Key header with every request. It is used for that one call only: never stored, logged or cached, and only ever sent to BILL Spend and Expense. Revoke it at the provider whenever you like. Unofficial connector: not affiliated with BILL Spend and Expense.