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.
Setup
Cursor
VS Code
Windsurf
Claude Desktop
Claude Code
Open MCP settings with Cmd+Shift+P (Mac) or Ctrl+Shift+P (Windows/Linux) and select Cursor Settings: Open MCP Settings. Add the following:{
"mcpServers": {
"codex-docs": {
"url": "https://docs.codex.io/mcp"
}
}
}
Create a .vscode/mcp.json file in your project root:{
"servers": {
"codex-docs": {
"type": "http",
"url": "https://docs.codex.io/mcp"
}
}
}
Open the MCP configuration file at ~/.codeium/windsurf/mcp_config.json and add the following:{
"mcpServers": {
"codex-docs": {
"serverUrl": "https://docs.codex.io/mcp"
}
}
}
Go to Settings > Connectors, select Add custom connector, then enter:
- Name: Codex Docs
- URL:
https://docs.codex.io/mcp
Run the following command:claude mcp add --transport http codex-docs https://docs.codex.io/mcp
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
}
}
Build a trending tokens feed
“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.