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Discover
OpenAPIRead your data11 tools
AvaTax (BYOK)
Read your AvaTax companies, nexus, transactions, tax rules, items, locations and tax-code reference data with your own account id and license key
Unify Dynamics LLC
Tools11read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderAvaTaxunofficial, not affiliated
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
Are my AvaTax credentials working and which account are they for?
Tools called
pingWhich companies are set up in AvaTax?
Tools called
list_companiesIn which states does my AvaTax company have nexus?
Tools called
list_company_nexusWhich states are close to my economic nexus threshold in AvaTax?
Tools called
list_economic_nexus_thresholdsWhat sales tax did we calculate on recent AvaTax transactions?
Tools called
list_transactionsShow AvaTax transaction INV-1 of company DEFAULT.
Tools called
get_transactionAbout
AvaTax (BYOK) lets an AI assistant read your own AvaTax data through the AvaTax API with a key you supply (AvaTax account id). Read-only: 11 tools (ping, list_companies, list_company_nexus, list_economic_nexus_thresholds, list_transactions, get_transaction, list_tax_rules, list_items, list_locations, list_tax_codes, list_nexus_by_address). 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 rest.avatax.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by AvaTax. AvaTax and its logos are trademarks of their owners and are used only to say which service the connector works with.
Sources: Live from the AvaTax API (rest.avatax.com) with a BYOK key; documentation: https://developer.avalara.com/api-reference/avatax/rest/v2/. 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
11 tools, grouped by job. Every one is read-only or compute-only.
- PingCheck the credentials: returns the AvaTax API version, whether authentication worked, the user name and the account id.
- List companiesList the companies in your AvaTax account with company code, name, default country, currency, active and test flags.
- List company nexusList where a company is registered to collect tax (nexus): country, region, jurisdiction name, nexus type, effective and end dates, tax id.
- List economic nexus thresholdsShow economic-nexus threshold status per US state for a company, with when it was last refreshed.
- List transactionsList a company's tax transactions (up to 1000 per call) with code, date, type, status, customer code, currency and total amount, exempt amount and…
- Get transactionGet one transaction by company code and transaction code with date, type, status, customer, currency and totals.
- List tax rulesList a company's custom tax rules: tax code, jurisdiction, rule type, value, dates and description.
- List itemsList a company's item catalog: item code, description, tax code, group, category and status.
- List locationsList a company's registered business locations: code, description, address, country and default flag.
- List tax codesList Avalara's system tax codes (reference data): code, description, parent code and category.
- List nexus by addressList the taxing jurisdictions (nexus types) that apply to a street address.
Information
PublisherUnify Dynamics LLC
CategoryMoney & business
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://byok-avatax.connectorbay.com/mcpREST APIopenapi.json
CountryWorldwide
FunctionOther
LayerDeep connectors
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