Avalara AvaTax

com.avalara由 avalara.com 發布官方發布者v1.0.1更新於 Oct 24, 2026

Access Avalara AvaTax API for tax calculation, transactions, nexus management, and compliance

發布方自己的服務：Avalara Tax Content

已驗證Streamable HTTP可網頁執行金融商業與電商

概覽

AI 產生的概覽

由 Avalara 託管的遠端 MCP 伺服器，讓助理查詢 AvaTax 的稅額計算、交易、關聯（nexus）與合規資料。

可以做什麼
  • 查詢即時稅率並執行稅額計算
  • 查詢與管理交易及關聯（nexus）設定
  • 取得合規監控與法規更新資訊
  • 檢索相關文件與指引
適用情境
當助理需要處理 Avalara AvaTax 稅務資料（例如估算交易稅額、檢視關聯設定或核對合規資訊），且所屬組織已有 Avalara 訂閱時使用。
執行需求
透過 streamable HTTP 連線至 mcp.avalara.com 遠端端點；需要有效的 Avalara 訂閱帳戶；需以現代瀏覽器完成 OAuth 2.1 登入與授權同意；需要網路存取。未宣告環境變數或請求標頭。
安裝前請注意
透過 OAuth 授權存取你的 Avalara 帳戶，授權前請確認所要求的權限。伺服器可存取交易與關聯資料，並可能修改紀錄，執行寫入前應先確認。有速率限制，請求可能回傳 HTTP 429。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 Avalara AvaTax，將其新增到工作區。
  2. 連接 所需的 憑證。它們會被私密儲存，絕不會在公開頁面上展示。
  3. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/com.avalara%2Favatax/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。 客戶端會在首次連接時完成 OAuth 登入。

{
  "mcpServers": {
    "avalara-avatax": {
      "type": "http",
      "url": "https://mcp.avalara.com/avatax"
    }
  }
}

README

[A-Check] Avalara

This is a non-community repo, created and maintained by Avalara

Avalara MCP Servers

MCP (Model Context Protocol) servers connect AI applications with Avalara's tax compliance systems in a standardized way. MCP servers allow partners and developers to integrate AI-driven tax workflows, automate cross-border compliance, and access Avalara's regularly updated tax content.

Avalara-supported MCP servers include AvaTax, Returns, E-Invoicing and Live Reporting, Tax Registrations and Business Licenses and Exemption Certificate Management, Cross Border Trade, and Tax Content. More services will be added over time.

What you can do:

  1. Query real-time tax rates and calculations
  2. Access compliance monitoring and regulatory updates
  3. Manage exemption certificates, business licenses, and returns
  4. Retrieve documentation and guidance

Getting Started with Avalara MCP Servers

Learn how to set up and connect to Avalara Model Context Protocol (MCP) servers for AI-powered tax compliance integration.

Prerequisites

To connect to Avalara MCP servers, you need to have:

  • Avalara subscription: You must have an active Avalara account
  • An AI client: Programmatic clients built using FastMCP or any other MCP-compatible library.
  • A modern web browser: Required for the OAuth 2.1 authorization flow.

How to connect:

Step 1: Set up the MCP client Follow the steps provided on the individual MCP server pages.

Step 2: Authorize access

  • When prompted, your MCP client redirects you to Avalara's secure sign in page
  • Sign in with your Avalara credentials
  • Review the permissions requested by the client for access to specific MCP server capabilities
  • Grant consent to complete the OAuth flow

Available MCP Servers

ServerDescriptionInstall
Avalara AvaTax MCP server
[smithery badge]		Provides access to the Avalara AvaTax API for tax calculation, transaction management, nexus handling, and compliance data.[Add to Cursor]
Avalara Returns MCP serverProvides access to the Avalara Global Returns API for tax returns management, filing calendars, and compliance data.[Add to Cursor]
Avalara Tax Registrations and Business License MCP serverProvides access to Avalara Tax Registration and Business Licenses APIs for license guidance, sales and payroll tax registrations, questionnaire management, and business activity validation.[Add to Cursor]
Avalara E-Invoicing & Live Reporting MCP serverProvides access to Avalara E-Invoicing and Live Reporting APIs for retrieving document statuses, downloading compliant documents, and managing compliance across jurisdictions.[Add to Cursor]
Avalara Exemption Certificates Management MCP serverProvides access to the Avalara Exemption Certificate Management API for managing certificates, customer profiles, and company data.[Add to Cursor]
Avalara Cross-Border Trade Services MCP serverThe Cross-Border Trade Services MCP server supports AI agents by providing tools to perform cross-border transactions, including duty calculations, and access to Trade and Tariff content libraries (including import trade restrictions).[Add to Cursor]
Avalara Tax Content MCP serverProvides access to Avalara Tax Content (ATC) data, including Transaction Tax Export (TTE) Configurations, Jobs, Communications and User Defined Functions for Lodging and Autorental.[Add to Cursor]
Avalara Dev Documentation MCP serverProvides access to Avalara developer documentation and integration guides, including technical documentation, product information, how-to guides, and code examples.[Add to Cursor]
Avalara Classification MCP serverProvides Harmonized System (HS) code classification for cross-border transactions. Supports managed classification requests, HS code validation and verification, and AI-powered import and export, and enriched trade compliance content lookup.[Add to Cursor]

Troubleshooting common issues:

  • Connection failed: Verify your Avalara account status and internet connection.
  • Permission denied: Make ensure your account has access to the requested services.
  • HTTP 429 (Too Many Requests): You've exceeded the server's rate limit.
  • Wait a few minutes before retrying.
  • Check the server's rate limit details on its individual page.

來源：README.md，提交 0f82df1

工具

0
該伺服器需要登入，因此 SourceWeft 無法在沒有帳號的情況下讀取其工具，也未收錄。已連接帳號所能看到的內容可能因帳號及其權限而異。

版本歷史

1
  1. v1.0.1最新Sep 16, 2026

評分

已滿足適用檢查項的 75%

該評分衡量此收錄條目的完整程度，依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價，也不表示伺服器安全或目前可用：可連通性是帶日期的檢查結果，評分也不包含安裝量或使用者評價。

  • 近 30 天內可連通必需25 分
  • 已宣告認證方式必需10 分
  • 已列出工具15 分

    請讓伺服器在無憑證時回應 tools/list，或發布可在沙箱中無憑證啟動的軟體包。

  • 描述必需15 分
  • 圖示10 分
  • 文件15 分
  • 授權條款10 分

    請在儲存庫或註冊中心條目中宣告授權條款。

其他 Avalara 整合

Avalara Tax Content

com.avalara官方發布者

Avalara 稅務內容遠端 MCP 伺服器，讓助理經 OAuth 授權存取 ATC 資料，例如 TTE 設定、作業、通訊以及住宿與租車相關內容。

Streamable HTTP可網頁執行驗證方式
金融需要憑證Oct 25, 2026

Avalara Returns

com.avalara官方發布者

讓助理查詢 Avalara Global Returns 資料，例如報稅申報表、申報行事曆和法規遵循資訊。

Streamable HTTP可網頁執行驗證方式
金融需要憑證Oct 24, 2026

Avalara E-Invoicing & Live Reporting

com.avalara官方發布者

Avalara 的遠端 MCP 伺服器，讓助理透過電子發票與即時報告 API 查詢電子發票單據狀態與合規資料

Streamable HTTP可網頁執行驗證方式
金融需要憑證Oct 24, 2026

Avalara Developer Documentation

com.avalara官方發布者

Avalara 遠端 MCP 伺服器，讓助理存取 Avalara 開發者文件、整合指南與程式碼範例。

Streamable HTTP可網頁執行驗證方式
知識與記憶需要憑證Oct 24, 2026

Avalara Cross-Border

com.avalara官方發布者

Avalara 的遠端 MCP 伺服器，讓助理查詢跨境關稅稅率、貿易與關稅內容，以及產品合規與限制資訊。

Streamable HTTP可網頁執行驗證方式
金融需要憑證Oct 24, 2026