14-day free trial

Free Crypto API

Build on real blockchain data for 14 days, free: balances, transactions, blocks, webhooks, xPub wallets and transaction sending across 35+ networks, mainnet included. One API key, no node to run and no credit card.

Start free trial See plans after the trial

14 days, every feature except AML Mainnet included No credit card

What the trial includes

Nearly the whole Blockchain API for 14 days

Real mainnet data

Not a sandbox: read live balances, transactions and blocks on mainnet, and test on test networks with the same key.

Every feature

Address history, xPub wallets, prepare and broadcast, fees and contracts: the whole Blockchain API is in the trial. AML checks and x402 Payments need a paid subscription.

Webhooks

Subscribe to addresses and blocks and get a callback when a transaction confirms, exactly as you will in production.

Your keys stay yours

The API prepares unsigned transactions and you sign them on your own server, on all 19 blockchains the API serves.

Quick start

Your first call in three steps

1Sign upWith email, Google or GitHub. No card needed.

2Start the trial, create a keyYour 14-day trial starts when you enable the Blockchain API in the dashboard. Then create an API key.

3Make a requestPaste the example into your terminal, or run it from the dashboard.

curl https://rest.cryptoapis.io/blocks/utxo/bitcoin/mainnet/latest/details \
  -H "X-API-Key: YOUR_API_KEY"

200 OKExample response, excerpt

{
  "data": {
    "item": {
      "height": 234324,
      "hash": "00000000…5890f",
      "transactionsCount": 23432
    }
  }
}

FAQ

Free trial questions

Is the free crypto API really free?

Yes, for 14 days. The free trial includes 100,000 credits, mainnet and test networks and every feature except AML checks, with no payment method needed. AML checks are not included in the trial. They are available on paid subscriptions. After it, calls need a subscription, listed on the pricing page.

Is there a free trial?

Yes. Every account can start one 14-day free trial for each product. Mainnet, test networks and every feature except AML checks are included, and you need no payment method. AML checks are not included in the trial. They are available on paid subscriptions. The trial ends after 14 days or when its credits run out, whichever comes first.

What happens when the free trial ends?

Calls that use credits stop, test networks included, until you choose a subscription. Your account stays. If you don't subscribe, your data is deleted 30 days after the trial ends.

What happens if I use up the trial credits?

The trial ends, after 14 days or when its credits run out, whichever comes first. There are no prepaid packs during a trial: to keep going, choose a subscription. On a subscription, when your credits run out, a prepaid credit pack is added and billed to you at your subscription's pay-as-you-go rate.

Start free with a 14-day trial

14-day free trial, mainnet included. No card needed.

Start free trial Book a call