Stablecoin escrow and transfer verification on Arc mainnet
Email verification API with live SMTP checks and bulk list cleaning
Stage
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Founded
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Based in
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Pricing model
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Freemium
Pricing
Free plan: up to 1,000 settled transfers per month and 10,000 payee checks per month; Growth plan: 0.10 USDC per settled transfer over 1,000, includes 100,000 payee checks, then 0.001 USDC each; Enterprise plan: contract pricing
Free plan with 250 checks. Starter at $9/month for 2,000 verifications with $2.50 per extra 1,000. Growth at $29/month for 10,000 verifications with $1.50 per extra 1,000. Scale at $99/month for 50,000 verifications with $1.00 per extra 1,000. Pay-as-you-go credit packs from $20 for 10,000 checks. A
Key features
Payee verification with direct, escrow, or block decision
Transfer status and history tracking
Event webhooks for transfer lifecycle
TypeScript SDK for agent integration
MCP server for AI agents
Refund on non-delivery or expiry
Idempotency keys for safe retries
Rate limiting with plan-based quotas
Self-serve API key generation
Webhook signature verification
Real mailbox checks via SMTP
Disposable domain and catch-all detection
Bulk CSV list upload and download
Typo suggestions for common email mistakes
Single API request returns complete status and reason
Dashboard usage tracking and spend caps
Test API keys that never use credits
Webhooks for bulk verification jobs
Integration with Zapier, Make and n8n
Four clear result statuses with reason codes
What makes it different
Transfers lock on-chain and release only with recipient proof, preventing wrong-wallet errors
Integrates AI agents through MCP server alongside REST API and TypeScript SDK
Automatic refunds after expiry without manual intervention
Free tier supports 1,000 transfers and 10,000 payee checks per month