Your agent shouldn’t need you to do its chores.
How often has your agent stopped mid-task to ask you for a CAPTCHA, a 2FA code, or a sign-in? That’s reverse delegation — and it’s usually not your fault or your agent’s. It depends on the vendor’s policies. Interrupt Index scores 118+ tools by how few walls they put in your agent’s way, so it runs longer and stops handing you busywork.
Highest-scored tools
Every tool is probed and scored within one of two lenses — scores never compare across modes. How scoring works →
Tools your agent runs on
- 95Overallx402 (Coinbase protocol)
x402.org · Agent-Commerce InfrastructureMR92 - 88OverallFewsats
fewsats.com · Agent-Commerce InfrastructureMR78 - 84OverallOpenWeatherMap
openweathermap.org · Developer / Data APIsMR88 - 84OverallFly.io
fly.io · Compute / VPS / Cloud HostingMR86 - 78OverallNekuda
nekuda.ai · Agent-Commerce InfrastructureMR74
Places your agent visits
- 65OverallTarget
target.com · E-commerce / D2C RetailMR49 - 62OverallGlossier
glossier.com · E-commerce / D2C RetailMR53 - 61OverallWalmart
walmart.com · E-commerce / D2C RetailMR40 - 59OverallCalendly
calendly.com · Email, Calendar & SchedulingMR37 - 58OverallBest Buy
bestbuy.com · E-commerce / D2C RetailMR35
How it works
Probe
Automated runs test signup, checkout, and API access against each vendor — from passive scans to live transaction attempts.
Score
Each interrupt found — CAPTCHA, email OTP, ToS bot-bans — subtracts from a starting 100. The result earns a badge.
Your agent checks
The MCP server or pasted prompt makes your agent consult the score before it signs up for or pays for anything on your behalf.
Categories
Agent-Commerce Infrastructure
Payment/discovery infra built specifically for AI agents (x402, ACP, MCP payment servers, agent wallets)
Compute / VPS / Cloud Hosting
Self-serve infrastructure/compute providers
Developer / Data APIs
Self-serve data APIs (weather, finance, geo, news)
General SaaS APIs
Self-serve SaaS with programmatic API access (payments, email, identity, search, LLMs)
E-commerce / D2C Retail
Consumer retail/checkout surfaces
MCP Registries / Discovery
MCP server discovery/hosting platforms
Travel & Mobility
Travel booking, airlines, rentals, and ride-hailing surfaces agents visit for users
Food Delivery & Local Services
Food, grocery, and local delivery marketplaces
Email, Calendar & Scheduling
Consumer mailboxes, calendars, and scheduling surfaces
Jobs & Hiring
Job search, applications, and hiring portals
Social & Community
Forums, video, and community platforms agents read and post to
Smart Home & Personal Automation
Home automation and personal-device platforms
Other
Community-submitted sites outside the core LLM-resource-vendor categories
Install Interrupt Index
Stop your agent from bouncing tasks back to you. Install once — every session checks agent-friendliness before signing up or paying for anything.
Install once — every supported agent session calls lookup_tool at decision time, no prompt to paste.
claude mcp add interrupt-index -- npx -y interrupt-index-mcpAre you a vendor? Your customers’ agents check your score before they sign up. See how you rank →