Clearford

One SDK for wallets, gasless UX & chains

Build wallets
and chains.

Smart wallet and rollup infrastructure in one place. Launch gasless onboarding, smart wallets, and custom rollups from a single SDK.

Get Your API KeyRead the Docs

Powering wallets & chains across the ecosystem

Ethereum
Base
Arbitrum
Optimism
Polygon
Ink
BSC
Avalanche
Scroll
zkSync
Linea
Blast
0B+

Transactions processed

0+

Chains supported

0M+

Daily transactions

$0M+

Total value secured

Developer experience

From API key to a live wallet in an afternoon.

The SDK is the whole product. Authentication, key management, gas sponsorship, and chain routing are one call each — readable code you could write from memory.

Start building for free
onboarding.ts
SDK live
import { Clearford } from "@clearford/sdk";
 
const cf = new Clearford({ apiKey: CF_KEY });
 
// sponsor gas across 100+ chains
const wallet = await cf.wallets.create({
  chain: "base",
  gasless: true,        // 4337 + 7702
  recovery: "passkey",
});
 
await wallet.send({ to, value });  // user pays $0

Everything you need, behind one key.

Four services that share one auth, one SDK, and one bill. Use them together or pick the piece you're missing.

[01]

Smart Wallets

Spin up non-custodial smart accounts with passkey recovery, session keys, and social login baked in. Users land in your app without a seed phrase or an extension.

  • Passkey & social recovery
  • Session keys for one-tap actions
  • Batch transactions in a single signature
[02]

Paymaster & Bundler

Sponsor gas or let your users pay in any token across 100+ chains with ERC-4337 and EIP-7702 support. The mempool plumbing is ours; the experience is yours.

  • Sponsor or token-paid gas
  • ERC-4337 + EIP-7702 native
  • One paymaster across every chain
[03]

Rollups

Get ahead of the curve with best-in-class support for Based, ZK, and custom rollups. Start on a testnet and have a production chain live in days, fully tooled.

  • Based, ZK & custom stacks
  • Explorer, bridge & faucet on day one
  • Migrate from testnet to mainnet with zero downtime
[04]

Relay & Automation

Execute transactions on any chain without holding its native token. Clearford relayers keep your users' intents moving even when the network is congested.

  • Sub-second relay confirmations
  • Automatic retries & fee escalation
  • Event-driven automation hooks

Testnet today, mainnet in days.

[01]

Create your account

Grab an API key in under a minute. No card, no contract — just a key you can start signing with on testnet.

[02]

Wire up the SDK

Drop the Clearford SDK into your app. Smart wallets, gasless sponsorship, and chain config all live behind one import.

[03]

Ship to mainnet

Flip the network flag when you're ready. The same calls you tested against testnet run unchanged in production.

Ready to build?

Start on a testnet, launch your mainnet in days, and scale with gasless UX your users won't believe is crypto.

Start BuildingTalk to an engineer