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Spend Brake vs Notol

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Spend Brake compared with Notol
DetailSpend Brake logo Spend BrakeNotol logo Notol
What it doesHard dollar caps for every paid API your apps and agents call, enforced before the request leaves Stablecoin escrow and transfer verification on Arc mainnet
StageNot given Not given
FoundedNot given Not given
Based inBG Not given
Pricing modelFreemium Not given
PricingFree plan: $0, up to $50/month protected spend, 1 key, 1 provider, 10,000 requests/month, 20 agent sessions/month. Indie: $9/month, unlimited keys, 2 providers, 100,000 requests/month, 100 agent sessions/month. Team: $49/month, unlimited keys, 5 providers, 1,000,000 requests/month, 500 agent session 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
Key features
  • Session keys for AI agents with independent budgets
  • Support for Google Maps, Twilio, Mapbox, HERE, Tavily, Exa, Brave and SerpApi
  • Self-hosted option with Docker Compose and offline license verification
  • 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
What makes it different
  • Atomic enforcement of all caps simultaneously so parallel requests cannot slip past together
  • Provider keys never exposed to client applications, only revocable virtual keys
  • 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
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

4 details filled in for both companies.

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