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Codex.io Docs MCP

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MCP to read the Codex crypto data API so agents can write GraphQL queries.

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Codex Docs MCP

Add the Codex documentation MCP server to your AI coding tools for instant access to API docs.

The Codex documentation is available as a Model Context Protocol (MCP) server. Adding it to your AI coding tool lets it search and reference the Codex API docs directly, so you can get accurate answers without leaving your editor.

https://docs.codex.io/mcp

What it does

Once connected, your AI tool can search the full Codex API documentation — including queries, subscriptions, types, and guides. It will automatically reference the docs when you ask questions about the Codex API or need help writing queries.

This MCP server is for searching the documentation and helping your AI write queries. It does not interface with the Codex API directly — you'll still need to execute queries using your API key via the GraphQL endpoint or the SDK.

Docs MCP vs Codex Skills

The Codex Skills gives your AI agent preloaded knowledge of the API so it can interface with the API directly. The Docs MCP lets it search the documentation, which can allow it to write GraphQL queries.

Docs MCP Codex Skills How it works Searches docs on demand via MCP protocol Preloaded API knowledge — operations, auth, templates Best for Looking up specific fields, types, or guides Interacting with the Codex API directly Needs network? Yes — queries the MCP server Works offline to write queries (still needs a connection to call the API)

Use both together for the best experience: the skill handles query generation and the MCP fills in details when needed.

Example prompts

Once the MCP is connected, you can ask your AI assistant to build features using the Codex API. Here are some examples to get started.

Get a token price

"Use the Codex API to fetch the current USD price of WETH on Ethereum."

Your assistant will look up the getTokenPrices query and write something like:

query {
 getTokenPrices(
 inputs: [
 {
 address: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
 networkId: 1
 }
 ]
 ) {
 address
 priceUsd
 }
}

"Show me how to get the top 10 trending tokens on Base sorted by 24h volume."

query {
 filterTokens(
 filters: { network: [8453] }
 rankings: { attribute: volume24, direction: DESC }
 limit: 10
 ) {
 results {
 token {
 name
 symbol
 address
 }
 volume24
 priceUSD
 change24
 }
 }
}

Render a price chart

"Fetch 1-hour OHLCV candles for the last 24 hours for this token on Solana: So11111111111111111111111111111111111111112."

query {
 getBars(
 symbol: "So11111111111111111111111111111111111111112:1399811149"
 from: 1719792000
 to: 1719878400
 resolution: "60"
 ) {
 o
 h
 l
 c
 volume
 t
 }
}

Stream live trades

"Set up a WebSocket subscription to stream real-time swap events for a token on Ethereum."

subscription {
 onEventsCreated(
 address: "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"
 networkId: 1
 ) {
 address
 networkId
 events {
 eventDisplayType
 timestamp
 maker
 token0SwapValueUsd
 token1SwapValueUsd
 transactionHash
 }
 }
}

Track wallet holdings

"Get all token balances for a wallet on Base."

query {
 balances(
 input: {
 walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
 networks: [8453]
 }
 ) {
 items {
 tokenAddress
 balance
 shiftedBalance
 token {
 name
 symbol
 }
 }
 }
}

Discover new launches

"Find tokens launched in the last hour on Solana with at least $10k liquidity."

query {
 filterTokens(
 filters: {
 network: [1399811149]
 liquidity: { gte: 10000 }
 createdAt: { gte: 1719874800 }
 }
 rankings: { attribute: createdAt, direction: DESC }
 limit: 20
 ) {
 results {
 token {
 name
 symbol
 address
 }
 liquidity
 priceUSD
 createdAt
 }
 }
}

You don't need to memorize any of this — just describe what you want and your AI assistant will look up the right query from the docs. The examples above are just to show what's possible.