Knowledge Base
Plain-language guides to every protocol agentgrade checks for.
Getting Started — Make Your Site Agent-Ready
Quick checklist to make your site discoverable and usable by AI agents.
Understanding Your Score
How agentgrade scores your site, what verified vs declared means, and how to improve.
Cloudflare & Agent Access
Why Cloudflare blocks agent traffic and how to configure it for agent accessibility.
About Scanning
How agentgrade scans sites, what data it collects, and how to opt out.
Comparing Payment Protocols
x402 vs MPP vs L402 — when to use each machine payment protocol.
x402 — HTTP Payment Protocol
The HTTP 402 payment protocol that lets agents pay per-request with USDC on Base.
MPP — Machine Payment Protocol
Micropayment protocol using pathUSD on the Tempo network for sub-second agent payments.
SPT — Stripe Shared Payment Tokens
Stripe card payments for AI agents via Shared Payment Tokens and the MPP 402 flow.
L402 — Lightning Payments
Bitcoin Lightning Network payments for API access using macaroons and invoices.
x-payment-info — OpenAPI Payment Discovery
Pre-request payment discovery via OpenAPI extensions so agents know pricing before triggering a 402.
Bazaar — Service Discovery
The x402 service catalog that lets agents discover and browse paid API endpoints.
MCP — Model Context Protocol
JSON-RPC 2.0 protocol that lets AI models call your tools directly.
OpenAPI — API Specification
Machine-readable API description that tells agents what endpoints exist and how to call them.
llms.txt — LLM Context File
Plain-text file that explains your service to large language models.
agents.txt — Agent Access Policies
Defines what AI agents are allowed to do on your service.
AI Plugin Manifest
Plugin manifest that helps AI assistants discover and integrate with your service.
robots.txt for Agents
Agent-specific directives in robots.txt that signal your site welcomes AI crawlers.
Claude Plugin Manifest
Plugin manifest that lets Claude and other Anthropic tools discover your service.
Skills Manifest
A JSON manifest listing the actions agents can take on your service.