# agentpromocode.com > Start-now API for AI agents to resolve promotional codes and checkout routes. ## Capabilities - POST /v1/resolve — input merchant domain + basket, output ranked offers + attribution_token. Works with no key in the anonymous demo tier. - POST /v1/feedback — report outcome worked|expired|ineligible|error. Anonymous feedback is accepted for anonymous attribution tokens. - POST /developer-keys — create a free key instantly for higher limits and consumer-level attribution. - Contract: sustained low feedback/resolve ratio suspends keyed API access (see /v1/me) - Public beta: offers are unverified unless explicitly marked; codes are not guaranteed. ## Base URL https://api.agentpromocode.com ## Docs - OpenAPI: https://api.agentpromocode.com/openapi.json - MCP npm: @agentpromocode/mcp - Quickstart: https://agentpromocode.com/quickstart - Start now: https://agentpromocode.com/start - Partner access: https://agentpromocode.com/partners ## ACDP Open Agent Commerce Discount Protocol — public overview at https://agentpromocode.com/acdp