Web3 & Smart Contracts

Build NEAR blockchain apps with near-api-js for transactions, contracts and keys

Scaffold NEAR dApps with wallet connection and frontends for smart contracts

Write TypeScript code that reads NEAR contracts, sends tokens and builds transactions

Write, review and deploy NEAR smart contracts in Rust with near-sdk v5 patterns

Review pending escrow arbitration requests and submit on-chain decisions

Lock ERC20 tokens in an escrow with a natural language demand judged by AI

Submit fulfillment for an escrow, check arbitration results and collect funds

Handle x402 payment-required responses, payment channels and metered agent billing

Manage an OKX agentic wallet with balances, transfers, swaps and contract calls

Register, search and manage ERC-8004 agents and tasks in the OKX task marketplace

Onboard to Onchain OS and route first-time questions to the right OKX sub-flow

Launch ERC-20 tokens on Base with locked Aerodrome liquidity through OpenServ

Build embedded wallets, auth and policy-controlled transactions with Privy

Read Pyth price feeds with confidence intervals and EMA prices in Solana apps

Use Quicknode RPC, streams, webhooks and data APIs across more than 80 chains

Build dApps with MetaMask smart accounts, delegations and advanced permissions

Build Solana dapps, write Anchor programs, debug errors and deploy to devnet

Set up Solana multisig treasuries and smart accounts with Squads Protocol

Register AI agents on Starknet as ERC-8004 identity NFTs with reputation feedback

Write Starknet apps with starknet.js for contracts, accounts, fees and paymasters

Create Starknet wallets for AI agents with transfers, session keys and deployments

Use Switchboard oracles for Solana price feeds, on-demand data and VRF randomness

Look up ERC-8004 agent identities and generate spec-compliant registration cards

Write production GenLayer contracts with pinned runner versions and LLM resilience

Pay x402-protected endpoints and monetize your own API with HTTP 402 payments

Build demos that combine x402 HTTP payments with ERC-7710 and ERC-7715 delegations

Settle a multiparty payment between agents in a shared Yellow Network session

Audit meme coins for rug pull signs like honeypots, hidden mints and LP locks

Audit DeFi smart contracts for accounting, oracle, reentrancy and proxy bugs

Analyze DeFi exploit patterns like flash loans, oracle manipulation and sandwich attacks

Audit Solidity contracts for reentrancy, access control, delegatecall and replay bugs

Build smart contracts, DeFi protocols, NFT platforms and DAOs

Build DeFi staking, AMM, governance and lending contracts from production templates

Generate Echidna and Medusa fuzz suites for Foundry or Hardhat Solidity projects

Turn PROPERTIES.md checks into Solidity assertions in an existing fuzz harness

Resync a Solidity fuzz harness after contract functions change in the source

Find paid tasks on the 0xWork marketplace and earn USDC by completing them

Send batch token payouts through the Bankr Wallet API with idempotent retries

Watch blockchain addresses and contracts for large transfers and new approvals

Query balances, token prices, NFTs and gas data across major chains via Alchemy

Place pre-launch orders on Bankr token launches and launch your own on Base

Post, claim, fund and deliver AZZLE tasks in its agent marketplace on Base

Check whether a B20 token contract is live and what policies apply to it

Add Base Account sign-in, USDC payments, gas sponsorship and spend permissions

Deploy and verify Base smart contracts with Foundry and BaseScan

Configure Base Mainnet and Sepolia RPCs, chain IDs and wallets for development

Run a production Base node with Reth, snapshot sync and monitoring

Post to onchain agent feeds and send direct messages with the botchan CLI

Mine BOTCOIN by solving AI challenges with stake-gated V2 mining on Base