How to integrate Bitquery MCP with Codex

Connect Codex to Bitquery MCP. Show real-time ethereum mempool transactions, count unique wallet addresses for solana, and more using natural language, with authentication handled for you.

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Api Key

Bitquery is a blockchain data platform offering indexed, real-time, and historical data from 40+ blockchains via GraphQL APIs. Get unified, reliable access to complex on-chain data for analytics, trading, and research.

10 Tools

Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With the Bitquery MCP integration, Codex can query real-time and archived blockchain data, combine database queries, filter results by metric, and track price asymmetry, all without leaving the terminal or the app, whichever you prefer.

For exact tool slugs and parameter tables, see the tool catalog in the Composio docs.

Also integrate Bitquery with

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 1700+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Bitquery MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

Try it

Ask Codex for a Bitquery task. The first time, Composio asks you to connect your Bitquery account.

For example, ask it to:

  • "Show real-time Ethereum mempool transactions"
  • "Count unique wallet addresses for Solana"
  • "Query historical Bitcoin transactions from 2021"

What is the Bitquery MCP server, and what's possible with it?

The Bitquery MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bitquery account. It provides structured and secure access to blockchain datasets and real-time analytics, so your agent can perform actions like querying historical transactions, streaming mempool activity, selecting blockchain networks, and aggregating metrics across 40+ supported chains.

  • Seamless blockchain data querying: Let your agent run powerful queries on historical or real-time blockchain data across multiple networks using Bitquery's combined or archive databases.
  • Live mempool monitoring: Subscribe and stream pending transactions from EVM-compatible chains in real time, enabling instant insights into network activity as it happens.
  • On-demand network and database selection: Have your agent dynamically select blockchain networks and datasets—like Ethereum, BNB Chain, or others—to tailor queries for your specific use case.
  • Metric aggregation and analysis: Automate the aggregation of transaction counts, unique values, or conditional metrics, empowering your agent to analyze blockchain trends without manual intervention.
  • Advanced GraphQL customization: Use aliases and conditional snippets to refine data responses, ensuring clarity and precise control in complex blockchain analytics workflows.

Conclusion

You've successfully integrated Bitquery with Codex using Composio's MCP server. Now you can interact with Bitquery directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for Bitquery operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1700+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Bitquery operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities
TOOLS

Supported Tools

Every Bitquery action and event your agent gets out of the box.

Archive Database Query

Query the Bitquery V1 GraphQL API for historical blockchain data using blockchain-specific root types such as bitcoin and ethereum.

Combined Database Query

Query Bitquery's Combined Database (v2 API) for blockchain data across 40+ networks.

Conditional Metrics Snippet

Generate a Bitquery GraphQL metric snippet with an if condition for count, sum, avg, min, or max, for embedding in a query.

Database Selection

Generate a GraphQL dataset selection fragment for the archive, realtime, or combined dataset.

Early Access Program Query

Submit a GraphQL query to Bitquery's Early Access Program endpoint for real-time blockchain data, including data from Solana and EVM networks.

Network Selection

Generate a GraphQL network selection fragment for a supported blockchain network.

Options Query

Fetch root-level GraphQL query fields and their arguments through schema introspection for the selected Bitquery environment.

Price Asymmetry Metric

Tool to generate GraphQL PriceAsymmetry filter snippet.

Realtime Database Query

Query the Bitquery Streaming (V2) API for realtime blockchain data.

Select By Metric

Tool to generate a GraphQL metric snippet filtering by its value using selectWhere.

FAQ

Frequently asked questions

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