Live 75 Actions

Twelve Data MCP Server
for AI Agents

Q: What AI frameworks and AI clients does the StackOne Twelve Data MCP server support?

The StackOne Twelve Data MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

Connect your AI agent to StackOne's Twelve Data MCP server and give it 75 MCP tools out of the box. Auth, tool execution, and security all managed.

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Twelve Data MCP Server

Built by

StackOne

Coverage

75 Agent Actions

Read-only access to Twelve Data. Extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Twelve Data MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Twelve Data tool response scanned for prompt injection in milliseconds, with 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Twelve Data call.

Tools Discovery →

What is the Twelve Data MCP Server?

A Twelve Data MCP server lets AI agents read Twelve Data data through the Model Context Protocol, Anthropic's open standard for connecting LLMs to external tools. StackOne's Twelve Data MCP server ships with 75 pre-built actions, fully extensible via the Connector Builder, plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Twelve Data MCP Tools

Every StackOne action for Twelve Data, ready for your agent. Read-only, scoped to exactly what you need.

Other (75)

Get Analyst Ratings US Equities
Get Analyst Ratings US Equities for an instrument
Get Earnings Estimate
Get Earnings Estimate for an instrument
Get Growth Estimates
Get Growth Estimates for an instrument
Get Price Target
Get Price Target for an instrument
Get Recommendations
Get Recommendations for an instrument
Get Dividends Calendar
Get Dividends Calendar entries
Get Earnings Calendar
Get Earnings Calendar entries
Get IPO Calendar
Get IPO Calendar entries
Get Splits Calendar
Get Splits Calendar entries
Get Balance Sheet
Get the Balance Sheet for an instrument
Get Cash Flow
Get the Cash Flow for an instrument
Get Dividends
Get the Dividends for an instrument
Get Earnings
Get the Earnings for an instrument
Get Income Statement
Get the Income Statement for an instrument
Get Market Capitalization
Get the Market Capitalization for an instrument
Get Profile
Get the Profile for an instrument
Get Splits
Get the Splits for an instrument
Get Statistics
Get the Statistics for an instrument
Get Logo
Get the logo image URL for a company, cryptocurrency, or forex pair
Get Technical Indicators
Get all technical indicators supported by Twelve Data with their parameters and output values
Get RSI
Get Relative Strength Index values for an instrument at a chosen interval
Get MACD
Get Moving Average Convergence Divergence values for an instrument at a chosen interval
Get SMA
Get Simple Moving Average values for an instrument at a chosen interval
Get EMA
Get Exponential Moving Average values for an instrument at a chosen interval
Get Bollinger Bands
Get Bollinger Bands values for an instrument at a chosen interval
Get Average Directional Index
Get Average Directional Index values for an instrument at a chosen interval
Get Aroon Indicator
Get Aroon Indicator values for an instrument at a chosen interval
Get Average True Range
Get Average True Range values for an instrument at a chosen interval
Get Commodity Channel Index
Get Commodity Channel Index values for an instrument at a chosen interval
Get Ichimoku Cloud
Get Ichimoku Cloud values for an instrument at a chosen interval
Get Money Flow Index
Get Money Flow Index values for an instrument at a chosen interval
Get On Balance Volume
Get On Balance Volume values for an instrument at a chosen interval
Get Parabolic Stop And Reverse
Get Parabolic Stop And Reverse values for an instrument at a chosen interval
Get Stochastic Oscillator
Get Stochastic Oscillator values for an instrument at a chosen interval
Get Supertrend
Get Supertrend values for an instrument at a chosen interval
Get Volume Weighted Average Price
Get Volume Weighted Average Price values for an instrument at a chosen interval
Get Williams %R
Get Williams %R values for an instrument at a chosen interval
Get Momentum
Get Momentum values for an instrument at a chosen interval
Get Rate Of Change
Get Rate of Change values for an instrument at a chosen interval
Get Stochastic RSI
Get Stochastic RSI values for an instrument at a chosen interval
Get Keltner Channel
Get Keltner Channel values for an instrument at a chosen interval
Get Kaufman Adaptive Moving Average
Get Kaufman Adaptive Moving Average values for an instrument at a chosen interval
Get Double Exponential Moving Average
Get Double Exponential Moving Average values for an instrument at a chosen interval
Get Triple Exponential Moving Average
Get Triple Exponential Moving Average values for an instrument at a chosen interval
Get Percentage Price Oscillator
Get Percentage Price Oscillator values for an instrument at a chosen interval
Get Normalized Average True Range
Get Normalized Average True Range values for an instrument at a chosen interval
Get Weighted Moving Average
Get Weighted Moving Average values for an instrument at a chosen interval
Get Price
Get the latest price for a stock, forex pair, or cryptocurrency
Get Quote
Get the latest quote with OHLC, volume, and 52-week range for an instrument
Get Time Series
Get historical OHLCV bars for an instrument at a chosen interval
Get End Of Day Price
Get the latest end-of-day closing price for an instrument
Get Exchange Rate
Get the real-time exchange rate for a currency pair
Get Currency Conversion
Convert an amount between two currencies using the real-time exchange rate
Get Time Series Cross
Get historical cross-rate OHLC series for any two instruments
Get Symbol Search
Search instruments by ticker or name across all asset classes
Get Stocks
Get available stock symbols, filterable by symbol, exchange, or country
Get Forex Pairs
Get available forex pairs, filterable by symbol or currency
Get Cryptocurrencies
Get available cryptocurrency pairs, filterable by symbol, exchange, or currency
Get ETFs
Get available exchange-traded funds, filterable by symbol, country, fund family, or fund type
Get Exchanges
Get available equity exchanges, filterable by asset type, name, MIC code, or country
Get Cryptocurrency Exchanges
Get available cryptocurrency exchanges
Get Market State
Get the current open or closed state of stock exchanges with time to next open or close
Get Countries
Get countries with their ISO codes, capitals, and currencies
Get Instrument Types
Get all available financial instrument types
Get Earliest Timestamp
Get the earliest available datetime for an instrument at a given interval
Get API Usage
Get the current API credit usage and plan limit for the connected key
Get Fixed Income
Get Fixed Income
Get Commodities
Get Commodities
Get Cross Listings
Get Cross Listings
Get Exchanges Schedule
Get Exchanges Schedule
Get Funds
Get Funds
Get Intervals List
Get Intervals List
Get Market Movers
Get Market Movers
List Press Releases
List Press Releases
Batch Requests
Run several Twelve Data GET requests in one call

Twelve Data AI Agent Use Cases

Connect your AI agent to Twelve Data and help your team scale the finance operations they run by hand today.

Invoice Processing

Automate invoice processing with AI agents connected to your ERP, accounting software, and AP tools through StackOne.

View

Accounts Receivable Dunning

Use StackOne to connect your AI agent to your accounting, CRM, and messaging systems to automate Accounts Receivable dunning and payment follow-up.

View

Invoice Processing

Use StackOne to connect your AI agent to your accounting, email, and document management systems to automate invoice processing and purchase order matching.

View

More Accounting & Finance use cases

Set Up Your Twelve Data MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Twelve Data in under 10 lines of code.

MCP Clients

Agent Frameworks

Claude Desktop-

JSON

Claude Desktop Docs

{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

Check More finance-payments MCP Servers

Envi

104+ actions

Rillet

83+ actions

Jaz

79+ actions

ApprovalMax

70+ actions

Timesheet Portal

67+ actions

Campfire

60+ actions

Embat

59+ actions

All finance-payments MCP Servers →

Platform Resources

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.

12 min

MCP vs API: What Hundreds of Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building hundreds of connectors that serve both, here's when each approach wins.

14 min read

Twelve Data MCP Server FAQ

Does StackOne have a Twelve Data MCP server?

Yes. StackOne offers a hosted Twelve Data MCP server with 75 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.

Twelve Data MCP server vs direct API integration: what's the difference?

A Twelve Data MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software work, where backend code calls Twelve Data. A Twelve Data MCP server is for AI agents that discover and call Twelve Data at runtime, such as MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI. StackOne provides both.

How does Twelve Data authentication work for AI agents?

Twelve Data authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK to get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Twelve Data account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.

Are Twelve Data MCP tools vulnerable to prompt injection?

Yes. Twelve Data MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content, such as documents, messages, tickets, records, or free-text fields, is a potential vector. StackOne Defender scans every tool response before it enters the agent's context. It runs regex patterns in ~1ms, then a MiniLM classifier in ~4ms. Accuracy is 88.7%, and it runs entirely on CPU.

What is the context bloat of a Twelve Data agent and how do I avoid it?

Context bloat happens when Twelve Data tool schemas and API responses eat your Twelve Data agent's memory, preventing it from reasoning effectively. A single Twelve Data query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery reduces it by loading only the tools relevant to each query.

Can I limit which actions my Twelve Data agent can access?

Yes. You can limit which actions your Twelve Data agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.

Can I create custom agent actions for my Twelve Data MCP server?

Yes. You can create custom agent actions for your Twelve Data MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Twelve Data's API, generate production-ready connector YAML, test against the live API, and validate before you ship.

When should I NOT use a Twelve Data MCP server?

Skip a Twelve Data MCP server if your integration is purely software-to-software, because direct Twelve Data API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Twelve Data actions at runtime.

What AI frameworks and AI clients does the StackOne Twelve Data MCP server support?

The StackOne Twelve Data MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

Put your AI agents to work

All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

Start Free Book Demo

Twelve Data MCP Serverfor AI Agents

75 Agent Actions

Agent Tool Authentication

Agent Protection

Max Agent Context. Min Cost.

What is the Twelve Data MCP Server?

All Twelve Data MCP Tools

Other (75)

Twelve Data AI Agent Use Cases

Set Up Your Twelve Data MCP Server in Minutes

Check More finance-payments MCP Servers

Platform Resources

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs API: What Hundreds of Connector Builds Taught Us

Twelve Data MCP Server FAQ

Put your AI agents to work

Twelve Data MCP Server
for AI Agents