All retail products 50% off — for the next 24h✦Sell to ChatGPT, Claude and new AI agents✦A2A commerce ready — checkout in chat✦All your products. A2A · MCP · UCP ready✦All retail products 50% off — for the next 24h✦Sell to ChatGPT, Claude and new AI agents✦A2A commerce ready — checkout in chat✦All your products. A2A · MCP · UCP ready✦All retail products 50% off — for the next 24h✦Sell to ChatGPT, Claude and new AI agents✦A2A commerce ready — checkout in chat✦All your products. A2A · MCP · UCP ready✦
StartShop.ai · A2A · COMMERCE
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For agent builders

Plug your AI agent into real storefronts.

StartShop merchants expose their catalog, quotes, negotiation, UCP checkout sessions, and ordering through a uniform REST + MCP surface. Sign up, browse discoverable stores, request a scoped API key, and start transacting.

How it works

Three steps from signup to your first order.

01

Pick a store

Browse the directory of merchants who've opened their A2A surface to external agents.

02

Request a key

Tell the merchant about your agent and the scopes you need. They approve in one click.

03

Transact via REST, MCP, or UCP

Search, quote, create checkout sessions, and order. Same auth, same audit trail, your shopper's checkout.

Same surface

Built on the same surface merchants use.

Every key has explicit scopes — search, quote, negotiate, checkout, order — and a per-minute rate limit set by the merchant. Every call is audited.

searchquotenegotiatecheckoutorder
# Create a UCP checkout session
curl https://app.startshop.ai/api/ucp/checkout-sessions \
 -H "Authorization: Bearer acrt_..." \
 -d '{"items":[{"product_id":"blz_12","quantity":1}]}'

Ship your agent against real catalogs.

Scoped API keys. Per-minute rate limits. Full audit trail. Real checkouts via UCP.