What is Aurelia?
Aurelia is an API for onchain token data. It reads every swap itself and serves prices, charts, trades, holders, wallets and new launches over REST and one WebSocket.
This Aurelia is a crypto data API, at aurelia.build. It has nothing to do with the Aurelia JavaScript framework at aurelia.io.
What it does
Aurelia indexes every swap on BSC, Solana, Base, Robinhood Chain and Ethereum itself, then serves what it finds to your code. Use it to build a token screener, a trading bot, a wallet tracker, a launch board, or anything else that needs live onchain market data.
| You want | Read |
|---|---|
| A token's price, or 100 at once | Token price API |
| Charts | OHLCV candles API |
| Every swap of a token, pool or wallet | DEX trades API |
| Who holds a token | Token holders API |
| What a wallet made or lost | Wallet PnL API |
| Tokens ranked and filtered | Token screener API |
| Whether a token looks risky | Honeypot check API |
| What just launched | New token launches API |
| All of it, live | Crypto WebSocket API |
| All of it, for an AI agent | MCP server |
Get started
The quickstart takes you from no account to your first answer in about a minute. For tools and agents there is llms.txt, the full reference as one file and an OpenAPI description.
Frequently asked questions
Which chains does Aurelia cover?
BSC, Solana, Base, Robinhood Chain and Ethereum. The same endpoints answer on all of them, and one request can mix chains.
How much does it cost?
Every account gets 10,000 free credits once, with no card and no subscription. After that, 1,000 credits cost $0.28, or $0.224 on a single deposit of $280 or more, prepaid in USDC on Solana from $5. Most requests cost 1 credit, and a WebSocket message 0.01.
How do I get an API key?
Sign in with Google at app.aurelia.build, then create a key on your account page. Keys start with aur_ and are shown once.
Does it have live data?
Yes. One WebSocket carries trades, candles, token and pool pages, holders, wallet balances and positions, and new launches. See the WebSocket guide.
Which launchpads does it follow?
four.meme, flap.sh, Genius, pump.fun, LetsBonk, Raydium LaunchLab and more. See the full list.
Can AI agents use it?
Yes. Aurelia hosts an MCP server for Claude, Cursor, VS Code and other agents, and publishes llms.txt and an OpenAPI description.
Can it place trades?
No. Aurelia only serves data.
How does it compare with other token data APIs?
See eight APIs side by side, and the comparisons with Mobula, Codex, Birdeye, Moralis, Bitquery, CoinGecko and DEX Screener, including when each of them is the better fit.
Free to start: 10,000 credits, with no card and no subscription.