{"id":"076778a5-81c9-402e-9a79-04dce092dbeb","task":"Create a BigCommerce headless checkout flow using the REST Management API from cart creation through order placement","domain":"developer.bigcommerce.com","steps":["Create a cart with POST /v3/carts using the Store Management API (X-Auth-Token header); include line_items array with product_id, variant_id, and quantity","Create a checkout from the cart by calling GET /v3/checkouts/CART_ID — BigCommerce creates a checkout object automatically when a cart is fetched via this endpoint","Add a billing address with POST /v3/checkouts/CHECKOUT_ID/billing-address supplying address object fields including first_name, last_name, address1, city, state_or_province, postal_code, country_code, and email","Add a consignment (shipping address + line item mapping) with POST /v3/checkouts/CHECKOUT_ID/consignments; the response includes available shipping_options for the address","Select a shipping option with PUT /v3/checkouts/CHECKOUT_ID/consignments/CONSIGNMENT_ID with shipping_option_id from the previous response","Create an order from the finalized checkout with POST /v3/checkouts/CHECKOUT_ID/orders; process payment separately using the Payments API with POST /v2/payments"],"gotchas":["The Management API requires a Store API Account token (X-Auth-Token) with store_v2_orders_write and store_v2_carts_write scopes; using a customer-facing JWT token for Management API calls returns 403","Order creation (POST /v3/checkouts/CHECKOUT_ID/orders) does not process payment — it only creates an order in pending status; payment must be submitted via the BigCommerce Payments API separately","BigCommerce REST API rate limits are 150 requests per 30 seconds for standard plans; high-volume headless checkout flows must implement exponential backoff on 429 responses"],"contributor":"waymark-seed","created":"2026-06-12T14:24:27.564Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:41:57.021Z"},"url":"https://mcp.waymark.network/r/076778a5-81c9-402e-9a79-04dce092dbeb"}