Taxjar MCP integration
Quotes sales tax rates by ZIP code, calculates tax on a full order, records orders and refunds for filing, and validates EU VAT numbers.
21actions available
Three actions you can hand over today
Every action runs live through MCP. Nothing to build, nothing to maintain.
Create order transaction
Lyro registers a new order transaction in TaxJar for accurate sales tax reporting and compliance audits. Finance teams maintain tax records automatically from customer conversations.
Calculate sales tax for an order
Lyro computes the applicable sales tax for an order based on location and items. Support agents provide tax-inclusive pricing to customers instantly without manual lookups.
Validate VAT number
Lyro verifies an EU VAT identification number against official VIES records. International sales teams confirm B2B customer validity before processing tax-exempt transactions.
How businesses use Taxjar + Lyro
Each card is one request a support team gets, and the Taxjar actions Lyro runs to close it.
Tell a customer what tax their order carries
Lyro checks the rate for the delivery ZIP code, confirms the product tax category that applies, and calculates the total including shipping and any exemption on the account.
Show Tax Rates For A LocationList Tax CategoriesCalculate Sales Tax For An OrderRecord the sale so it reaches the filing
Lyro creates the order transaction that appears in the TaxJar dashboard, adjusts amounts or line items if the order changes, and files the refund when part of it comes back.
Create Order TransactionUpdate Order TransactionCreate Refund TransactionSet up a tax-exempt customer correctly
Lyro registers the customer with their exemption type and address, reads back the stored record when a question comes in, and amends the exemption when their status changes.
Create CustomerShow CustomerUpdate CustomerCheck where and whether tax is actually owed
Lyro reports the regions the account has nexus in, summarizes minimum and average rates by region, and validates a claimed EU VAT number before a sale is zero-rated.
List Nexus RegionsSummarize Tax Rates For All RegionsValidate VAT Number
How it works
Get started in 3 steps
Connect once, then just ask. There is no workflow builder to learn and nothing to maintain — Lyro reads the Taxjar actions it has and picks the ones a request needs.
- 01
Connect Taxjar
Authorize the Taxjar account your team already uses — one consent screen, no API keys, no mapping tables. Lyro can only do what you granted that account, and you can disconnect it at any time.
- 02
Tell your agent what you need
Describe the job the way you would hand it to a teammate. Lyro maps it to the Taxjar actions that close it and chains as many as the request needs.
- 03
Watch it work
The agent runs the actions inside the conversation the customer is already in, so nobody copies data between tabs and your team can take over at any point.
Get started free
Everything else about Taxjar
Setup, permissions, and the limits of what Lyro can do inside Taxjar.
It can. List Nexus Regions returns the regions where your TaxJar account has nexus, and Calculate Sales Tax for an Order takes nexus addresses as an input, so Lyro quotes against where you are registered instead of assuming every destination state applies.
Every action available in Taxjar
All 21 actions your agent can call on Taxjar, straight from the live MCP connection.
Calculate sales tax for an order
Calculate sales tax for an order.
Create customer
Create a new customer with exemption information.
Create order transaction
Creates a new order transaction in TaxJar for sales tax reporting and compliance.
Create refund transaction
Create a new refund transaction.
Delete customer
Delete an existing customer.
Delete order transaction
Delete an existing order transaction.
Delete refund transaction
Delete an existing refund transaction.
List customers
Lists all customer IDs from your TaxJar account.
List nexus regions
List existing nexus regions for an account.
List order transactions
List order transaction IDs within a date range.
List refund transactions
Lists refund transaction IDs within a specified date range.
List tax categories
List all product tax categories and their codes.
Show customer
Show an existing customer.
Show order transaction
Show an existing order transaction by ID.
Show refund transaction
Retrieves detailed information about a specific refund transaction from TaxJar.
Show tax rates for a location
Show sales tax rates for a location.
Summarize tax rates for all regions
Retrieve minimum and average sales tax rates by region.
Update customer
Update an existing customer in TaxJar.
Update order transaction
Update an existing order transaction.
Update refund transaction
Update an existing refund transaction.
Validate VAT number
Validates EU VAT identification numbers against the VIES (VAT Information Exchange System) database.
The tools Taxjar sits next to
Same connection, same setup. Pick the next one your team already uses.
Coupa
Reports invoice and purchase order status, raises requisitions for approval, updates supplier records, and works the approval queue.
Fixer
Reads live and historical exchange rates and confirms which of the 170 supported currencies it can quote.
Mercury MCP
Reports account balances and cards, opens transactions with their attachments, pulls invoices and customers, and covers treasury and pending approvals.
Polygon
Returns live quotes, reads 10-K sections and financial statements, computes technical indicators, and surfaces dividends, splits, and news.
Skyfire
Browses the service directory, issues KYA and PAY tokens scoped to one purchase, audits what sellers charged, and collects payment seller-side.
Zoho invoice
Quotes the real balance on an invoice, raises and emails new ones, issues credit notes and refunds, and controls the reminder schedule.
Ready to connect Taxjar?
Authorize the account and your agent has all 21 actions from the first conversation.