Knowledge Base
Plain-language guides to every protocol agentgrade checks for.
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.
L402 — Lightning Payments
Bitcoin Lightning Network payments for API access using macaroons and invoices.
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.