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 sanctions lists. You can authenticate using a dedicated connector or by setting the CHAINALYSIS_SANCTIONS_API_KEY environment variable for seamless automated checks.

How are posts sent to Farcaster in this workflow?

Farcaster interactions are managed through the Neynar managed signer (SIWN). This ensures secure, authenticated posting of casts to the Farcaster network as part of your automated compliance or notification workflows.

Can I automate social alerts based on sanctions hits?

Yes. You can design a workflow where a Chainalysis Sanctions screening trigger an immediate cast on Farcaster via Neynar, alerting your community or internal teams about high-risk wallet activity in real-time.

What happens if I don't configure a specific Chainalysis connector?

If no specific connector is attached to your B3OS workflow, the platform automatically falls back to the CHAINALYSIS_SANCTIONS_API_KEY environment variable to authenticate your API requests.

Chainalysis Sanctions + Farcaster Integration

Overview

Automate compliance-driven social engagement by integrating Chainalysis Sanctions screening with Farcaster. Build intelligent workflows that verify wallet safety against global sanctions lists before triggering automated posts or updates via Neynar on the Farcaster protocol.

Popular ways to use the Chainalysis Sanctions + Farcaster 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.

Post Farcaster Cast

Action

Post a cast (message) to Farcaster via Neynar API. Use this to share updates, announcements, or engage with the Farcaster community. Supports channels, threading (replies), and embeds (max 2 URLs). Max 1024 characters. Ideal for: price alerts, milestone announcements, community updates, automated social posts.

Delete Farcaster Cast

Action

Delete a Farcaster cast via Neynar API. Requires a connected Farcaster account with signer. Only the cast author can delete it. Ideal for: content moderation, automated cleanup, removing outdated announcements.

React to Farcaster Cast

Action

Like or recast a Farcaster cast via Neynar API. Requires a connected Farcaster account with signer. Supports 'like' and 'recast' reaction types. Ideal for: engagement automation, community interaction, content curation, appreciation bots.

Follow Farcaster User

Action

Follow a Farcaster user via Neynar API. Requires a connected Farcaster account with signer. Specify the target user by FID. Ideal for: community growth automation, follow-back workflows, onboarding flows.

Create workflows with Chainalysis Sanctions integrations

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Overview

Popular ways to use the Chainalysis Sanctions + Farcaster 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 + Farcaster integration onchain

Compliance: Sanctions + Illicit Finance Monitoring

Supported triggers and actions

Create workflows with Chainalysis Sanctions integrations

FAQs about Chainalysis Sanctions