# market-data

Connects AI agents to audited historical US equity and crypto market data. Helps verify data hygiene and quality flags before running strategy backtests.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: iturri-ai
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/iturri-ai/iturri-mcp
- Updated: 2026-07-13
- HTML: https://affpapa.org/en/nevibecode/mcp/market-data

## What it does

This hosted MCP endpoint serves verified history across 120 liquid assets, splitting into 34 crypto coins and 86 US stocks and ETFs. Fresh candles land once a day at 08:30 UTC on a T+1 schedule. It does not provide real-time ticker feeds. Primary records undergo SHA-256 validation against cross-checked venues.

Agents get access to 11 distinct tools. The catalog overview tool is free. Dedicated functions return OHLCV bars tagged with quality flags like `verified` or `interpolated`, funding rates, open interest, and order flow imbalance. In addition, `validate_backtest_data` audits coverage and gaps for a date window before an agent executes calculations.

There are no local files to build. Point your client to `https://iturri.ai/mcp`. Paid tools charge per request through x402 on Base in USDC, unless you pass an optional bearer token from the $39 monthly membership.

## Requirements
- Remote server: `https://iturri.ai/mcp`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http market-data https://iturri.ai/mcp
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add market-data --url https://iturri.ai/mcp
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "market-data": {
            "url": "https://iturri.ai/mcp"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "market-data": {
            "type": "http",
            "url": "https://iturri.ai/mcp"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http market-data https://iturri.ai/mcp
```

## When to use it
- Audit historical candle quality and flag distributions before running backtests
- Retrieve OHLCV bars across timeframes from 1m to 1d with source verification
- Fetch historical crypto funding rates and hourly open interest
- Extract leakage-safe feature matrices and order flow metrics for modeling

## Example prompts
- Run describe_catalog to inspect available crypto tickers and fee schedules.
- Check data quality for SOL throughout 2023 using validate_backtest_data.
- Fetch hourly get_bars for ETH over the last month and filter to verified bars only.

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md