How does the Chainalysis Sanctions integration work within B3OS?

B3OS uses the Chainalysis Sanctions Screening API to cross-reference blockchain addresses against OFAC, EU, and UN lists. If no specific connector is configured, the workflow automatically falls back to the CHAINALYSIS_SANCTIONS_API_KEY environment variable to ensure uninterrupted compliance checks.

Can I automate transaction prevention based on sanctions results?

Yes. By combining Chainalysis with Thirdweb Engine, you can create conditional logic in B3OS that halts any transaction attempt via Thirdweb Engine if the recipient address fails the Chainalysis sanctions screening.

What role does Thirdweb Engine play in this workflow?

Thirdweb Engine acts as your secure infrastructure layer, allowing B3OS to interact with your self-hosted smart contracts, manage backend wallets, and execute the transactions that have been cleared by your compliance protocols.

Which sanctions lists are covered by the Chainalysis connector?

The integration provides comprehensive coverage, screening addresses against major international lists including OFAC, the European Union (EU), the United Nations (UN), and other critical global sanctions datasets.

Chainalysis Sanctions + Thirdweb Engine Integration

Overview

Automate institutional-grade compliance by integrating Chainalysis Sanctions screening with Thirdweb Engine's smart contract orchestration. Build secure, automated workflows that instantly validate wallet addresses against global sanctions lists before executing on-chain transactions.

Popular ways to use the Chainalysis Sanctions + Thirdweb Engine integration onchain

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Compliance: Sanctions + Illicit Finance Monitoring

This workflow monitors contracts events and screens addresses interacting with that contract to flag santions/OFAC and high risk accounts. The data and flagged accounts are auto-logged into a Gsheet and a notification is sent. This allows teams to make sure they remain compliant and block any bad actors from interacting with their platform. Quick Setup: 1. Connect your Gsheets account 2. Input the contract address you want monitored 3. Input the chain the contract address is deployed on 4. Drop in the Gsheet Spreadsheet URL where you want the data to be logged 5. Specify the tab you want the data to be logged in the Spreadsheet (input 0 if first tab) 6. Publish!

Supported triggers and actions

Screen Address for Sanctions

Action

Check whether a blockchain address is on any sanctions list tracked by Chainalysis (OFAC SDN, EU, UN, etc.). Returns a boolean sanctioned flag, unique categories, and the full identifications list with source URLs. Chain-agnostic (EVM, BTC, Solana). Ideal for: compliance workflows, pre-transaction screening, counterparty risk checks, AML monitoring, audit trails.

Thirdweb Engine: Read Contract

Action

Read data from a smart contract via your Thirdweb Engine instance. Calls a read-only function and returns the result. Ideal for: checking balances, reading state, fetching on-chain data for workflow conditions.

Thirdweb Engine: Create Backend Wallet

Action

Create a new backend wallet in your Thirdweb Engine instance. Returns the new wallet address, status, and type. Ideal for: provisioning wallets for automated transactions, setting up new signing wallets.

Thirdweb Engine: List Backend Wallets

Action

List all backend wallets configured in your Thirdweb Engine instance. Returns wallet addresses, types, and labels. Ideal for: discovering available wallets, populating wallet selection dropdowns, verifying wallet setup.

Thirdweb Engine: Send Transaction

Action

Send a raw transaction via your Thirdweb Engine. Takes pre-encoded calldata, destination address, and value. Queues the transaction and returns a queueId. Ideal for: arbitrary contract interactions, value transfers, custom calldata not covered by write-contract.

Thirdweb Engine: Write Contract

Action

Execute a write transaction on a smart contract via your Thirdweb Engine. Queues the transaction and returns a queueId for tracking. Use get-transaction-status to poll for confirmation. Ideal for: state-changing contract calls, token transfers, minting.

Create workflows with Chainalysis Sanctions integrations

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Overview

Popular ways to use the Chainalysis Sanctions + Thirdweb Engine integration onchain

Compliance: Sanctions + Illicit Finance Monitoring

Supported triggers and actions

Create workflows with Chainalysis Sanctions integrations

FAQs about Chainalysis Sanctions

Overview

Popular ways to use the Chainalysis Sanctions + Thirdweb Engine integration onchain

Compliance: Sanctions + Illicit Finance Monitoring

Supported triggers and actions

Create workflows with Chainalysis Sanctions integrations

FAQs about Chainalysis Sanctions