How do I get my Carta API credentials?

Go to the **Carta Developer Portal** at **developer.carta.com** and log in or register. Click **Create App**, fill in the app details (name, homepage URL, grant type, and required scopes), then click **View app details** to find your **Client ID** and **Client Secret**. Copy both values and paste them into the configuration below. Note: Carta's API program is invite-only — if you don't have access, email **developers@carta.com** to request it.

Can my AI agent tell me exactly how much equity remains in our option pool?

Yes. Ask your agent to pull the cap table and it returns the total authorized shares, shares issued, options granted, options exercised, and the remaining unallocated pool — giving you an instant snapshot of your equity position. Perfect for board meetings, fundraising conversations, or new-hire planning where you need the numbers immediately.

What if a new hire asks about their vesting schedule during onboarding?

Your AI agent can pull any employee's grant details including total shares granted, vesting start date, cliff date, monthly vesting rate, and shares already vested — so HR can answer equity questions instantly during the onboarding call without opening the Carta dashboard or asking Legal.

Can this handle companies with complex multi-round fundraising histories?

Yes. The integration retrieves the full cap table structure including Seed, Series A, B, C rounds and beyond, convertible notes, SAFEs, and all share classes. Perfect for late-stage startups preparing for IPO, companies running secondary sales, and legal teams performing due diligence on cap table complexity.

Carta MCP Server for LlamaIndex 10 tools — connect in under 2 minutes

Name: Carta
Availability: InStock
Author: Vinkius

docs.llamaindex.ai/en/stable/module_guides/tools/mcp

Built by Vinkius GDPR 10 Tools Framework

LlamaIndex specializes in data-aware AI agents that connect LLMs to structured and unstructured sources. Add Carta as an MCP tool provider through Vinkius and your agents can query, analyze, and act on live data alongside your existing indexes.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from llama_index.tools.mcp import BasicMCPClient, McpToolSpec
from llama_index.core.agent.workflow import FunctionAgent
from llama_index.llms.openai import OpenAI

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    mcp_client = BasicMCPClient("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
    mcp_tool_spec = McpToolSpec(client=mcp_client)
    tools = await mcp_tool_spec.to_tool_list_async()

    agent = FunctionAgent(
        tools=tools,
        llm=OpenAI(model="gpt-4o"),
        system_prompt=(
            "You are an assistant with access to Carta. "
            "You have 10 tools available."
        ),
    )

    response = await agent.run(
        "What tools are available in Carta?"
    )
    print(response)

asyncio.run(main())

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About Carta MCP Server

Connect Carta to your AI agent and manage your company's equity operations, stakeholder information, and compliance data conversationally.

LlamaIndex agents combine Carta tool responses with indexed documents for comprehensive, grounded answers. Connect 10 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

What you can do

Cap Table Queries — Retrieve your company's capitalization table including shares outstanding, share classes, and ownership percentages.
Equity Grants — List active stock option grants, vesting schedules, exercise windows, and grant statuses.
409A Valuations — Access your latest 409A valuation data and fair market values for compliance reporting.
Stakeholder Directory — Query your shareholder registry to find individual equity positions and contact details.

The Carta MCP Server exposes 10 tools through the Vinkius. Connect it to LlamaIndex in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Carta to LlamaIndex via MCP

Follow these steps to integrate the Carta MCP Server with LlamaIndex.

Install dependencies

Run pip install llama-index-tools-mcp llama-index-llms-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 10 tools from Carta

Why Use LlamaIndex with the Carta MCP Server

LlamaIndex provides unique advantages when paired with Carta through the Model Context Protocol.

Data-first architecture: LlamaIndex agents combine Carta tool responses with indexed documents for comprehensive, grounded answers

Query pipeline framework lets you chain Carta tool calls with transformations, filters, and re-rankers in a typed pipeline

Multi-source reasoning: agents can query Carta, a vector store, and a SQL database in a single turn and synthesize results

Observability integrations show exactly what Carta tools were called, what data was returned, and how it influenced the final answer

Carta + LlamaIndex Use Cases

Practical scenarios where LlamaIndex combined with the Carta MCP Server delivers measurable value.

Hybrid search: combine Carta real-time data with embedded document indexes for answers that are both current and comprehensive

Data enrichment: query Carta to augment indexed data with live information before generating user-facing responses

Knowledge base agents: build agents that maintain and update knowledge bases by periodically querying Carta for fresh data

Analytical workflows: chain Carta queries with LlamaIndex's data connectors to build multi-source analytical reports

Carta MCP Tools for LlamaIndex (10)

These 10 tools become available when you connect Carta to LlamaIndex via MCP:

get_cap_table

Get the full cap table

get_company

Get company details

list_companies

List all companies

list_convertibles

List convertible notes and SAFEs

list_funding_rounds

List funding rounds

list_option_plans

List stock option plans

list_securities

List all securities

list_share_classes

with liquidation preferences and conversion rights. List share classes

list_stakeholders

List all stakeholders

list_valuations

List 409A valuations

Example Prompts for Carta in LlamaIndex

Ready-to-use prompts you can give your LlamaIndex agent to start working with Carta immediately.

"Show me our current cap table summary."

"What's our latest 409A valuation?"

"How many shares has João Paulo vested so far?"

Troubleshooting Carta MCP Server with LlamaIndex

Common issues when connecting Carta to LlamaIndex through the Vinkius, and how to resolve them.

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

Carta + LlamaIndex FAQ

Common questions about integrating Carta MCP Server with LlamaIndex.

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.