Aiwyn Tax MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Aiwyn Tax MCP or direct API to estimate federal taxes, calculate state taxes, compare filing scenarios, and explain tax outcomes through natural language.

Aiwyn Tax MCP logoAiwyn Tax MCP
No Auth

Aiwyn Tax MCP is a tax estimation service powered by Aiwyn's federal and state tax engine. It helps teams estimate tax outcomes without building tax calculation logic from scratch.

10 Tools

Try Aiwyn Tax MCP now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Aiwyn Tax MCP
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TOOLS

Supported Tools

Every Aiwyn Tax MCP action and event your agent gets out of the box.

Calculate tax

Calculate a tax return for a given jurisdiction.

Check tax

Check inputs to calculate a tax return for a given jurisdiction.

Generate tax pdf tool

Start async PDF generation for a tax return.

Generate uuid v5

Generate a UUID v5 based on a source uuid and namespace.

Get tax pdf tool

Check status of a PDF generation job.

Tax jurisdictions

List all supported tax jurisdictions for a given tax year.

Tax namespaces

List all available input namespaces for a given jurisdiction.

Tax namespace schema

Get the TCB input schema for a single namespace (e.

Tax simple return

Call this FIRST when beginning any tax return.

Tax years

List all supported tax years.

SETUP GUIDE

Connect Aiwyn Tax MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["aiwyn_tax_mcp"],
  mcp: true,
});
Create a session scoped to Aiwyn Tax MCP and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Estimate federal and California state taxes for a single filer earning $85,000 with $5,000 in deductions",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Aiwyn Tax MCP request
SETUP GUIDE

Connect Aiwyn Tax MCP API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["aiwyn_tax_mcp"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Aiwyn Tax MCP
3

Run Aiwyn Tax MCP tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Estimate federal and California state taxes for a single filer earning $85,000 with $5,000 in deductions" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Aiwyn Tax MCP tool calls through the session, and print the final answer

Why Use Composio?

AI Native Aiwyn Tax MCP Integration

  • Supports both Aiwyn Tax MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tax estimation workflows
  • Rich coverage for estimating federal and state tax outcomes from user-provided financial details

Managed Auth

  • No credential setup is required because Aiwyn Tax MCP uses no-auth access through Composio
  • Composio gives every agent a clean Tool Router session instead of custom integration glue
  • Per-user execution context helps you keep tax estimation requests organized and traceable

Agent Optimized Design

  • Tools are shaped so language models can ask for tax estimates with clear, structured inputs
  • Built-in execution handling reduces the brittle parsing work you'd normally write yourself
  • Comprehensive logs show which tax estimation tools ran, when, and for which user

Enterprise Grade Security

  • Fine-grained RBAC lets you control which agents and users can access Aiwyn Tax MCP
  • Scoped tool access helps keep tax estimation workflows limited to approved actions
  • Full audit trails make it easier to review agent-driven tax calculations and user requests
FRAMEWORKS

Use Aiwyn Tax MCP with any AI Agent Framework

Choose a Framework you want to connect Aiwyn Tax MCP with

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

No. Aiwyn Tax MCP uses no-auth access through Composio, so you don't need to configure developer credentials. You can create a Tool Router session and let your agent start estimating federal and state taxes right away.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Aiwyn Tax connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

When you connect a Aiwyn Tax account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Aiwyn Tax as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Aiwyn Tax. If Aiwyn Tax lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Aiwyn Tax at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Aiwyn Tax connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Aiwyn Tax use. Paid plans add higher limits and team features. Your Aiwyn Tax plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Aiwyn Tax accounts).

With Composio, you connect Aiwyn Tax once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

Start with Aiwyn Tax MCP.It takes 30 seconds.

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