Search marketplace products by free-text query, optional category, or seller. Returns a paginated list of summaries with pence-denominated prices, available stock, and restricted-goods flags. Pass a concise phrase, not a full sentence.

Fetch a single product by id. Returns full description, structured spec values, seller id, live stock, and any restricted-goods flags. Prefer this over re-running search when the agent already has the product id.

Create a purchase intent for a product. Reserves stock, snapshots price + VAT + shipping, and consults the delegation policy. Returns an intent id; intents expire after 15 minutes if not confirmed. Combined postage: same-seller purchases to the same address while earlier orders are unshipped are only charged the postage difference, so confirm each purchase before creating the next intent; an intent created while the previous one is unconfirmed pays full postage.

Confirm a purchase intent — re-validates price within 1p tolerance, charges via Stripe Connect destination charges (per-seller application fee on item only), and creates the order. May return SCA / payment-action-required / declined errors.

Cancel a pending purchase intent and release the stock reservation.

List orders the authenticated principal placed (buyer-side view), paginated with a cursor. Optional status filter (e.g. 'paid_awaiting_fulfillment', 'delivered', 'cancelled'). Use this to find an order id before calling orders_get.

Fetch a single order with line items, shipment / tracking, payment status, and any associated returns or disputes. Buyer-side view — for seller-side use seller_get_order.

Initiate a return on a delivered order. Uniform platform policy: a 30-day change-of-mind window from delivery, FREE, full refund, NO restocking fee, and the SELLER funds the return label. Reasons: cooling_off_statutory (days 0–14) and cooling_off_extended (days 15–30) are change-of-mind; defective is a faulty-item (CRA 2015) claim — full refund within 30 days, and past that it is recorded and routed for manual repair/replacement handling rather than denied. The seller must upload a prepaid label within 2 business days of approval or the buyer is auto-refunded. Idempotent on order_id.

Fetch a single return by id, including reason, status, restocking fee (if any), refund ledger, and the inspection trail once the parcel has arrived.

List returns the authenticated principal filed (buyer-side view), paginated. Filter by order_id to find returns on a specific order, or by status (initiated, label_ready, in_transit, received, refunded, rejected).

Fetch a short-lived signed URL for the return shipping label PDF. URL expires within minutes; re-call to get a fresh one. Only available once the return has progressed to label_ready.

List the principal's saved shipping addresses. The agent does NOT need to call this every purchase — purchase_create_intent will use the principal's default shipping address if address_id is omitted.

Save a new shipping address. Set is_default_shipping=true to make it the default.

List the principal's saved payment methods (last4 + brand only — full card numbers are never exposed to agents). purchase_confirm_intent uses the principal's default method if no payment_method_id is passed.

Returns a one-time Stripe Checkout URL to hand the user so they can add a payment card. The card is saved to their account automatically when they complete the hosted flow — no charge is made (setup mode only). Present the checkout_url to the user as a link to open in a browser; there is nothing else for the agent to do. Buyer principals only.

List the marketplace's category taxonomy. Optionally pass slug to scope to a subtree (e.g. 'electronics'). Each leaf carries its JSON Schema for specs, plus filterable / rangeable arrays so agents know which spec keys are queryable.

Fetch one category by slug, including the spec JSON Schema for leaf categories. Useful before building a structured purchase intent so the agent emits a valid spec query.

Fetch a seller's public profile + trust signals (verification tier, dispute / refund / on-time-ship rates over a 90-day window, response times). Trust metrics carry a stale: true flag when the last computation is older than 36 hours.

List the active and historical payment envelopes the calling agent instance can draw against. Each entry shows balance, scope, validity, and per-tx / per-day caps. Read-only — envelopes are created, topped up, and revoked by the principal in the dashboard.

Fetch a single envelope by id. Returns the same shape as envelopes_list. Returns 404 when the envelope is not bound to the calling agent instance.

Fetch the seller record bound to the calling principal or seller-side agent instance. Refuses when the caller has no seller record.

Read-only Stripe Connect onboarding status. Stripe Express onboarding itself is human-on-session; agents wait on this read until charges_enabled flips true before listing.

List the bound seller's product listings, paginated. Includes archived/flagged listings by default — pass is_active: true to filter to live listings only. Returns slug, category, stock, price, and any moderation flags.

Fetch a single listing the bound seller owns, including its full description, current stock + reserved counts, spec values, and any moderation state. Refuses if the listing belongs to a different seller.

Create a product listing. Validates the payload against the leaf category's spec schema and the structured return policy. Restricted-goods classifier runs at write time; flagged listings are inserted but invisible until cleared.

Patch an existing listing the calling seller owns. Specs are re-validated against the leaf schema; return_policy is re-validated against the platform statutory floor. Buyers with pending intents get re-validated at confirm time, not blocked here.

Soft-delete a listing (is_active=false). Refuses while any purchase intents are still pending against it.

Update a listing's stock count. Pass stock for an absolute value or delta for a relative change. Resulting stock must remain >= reserved.

List orders placed against the bound seller's products (seller-side view), paginated. Filter by status (e.g. 'paid_awaiting_fulfillment' to find orders that need shipping). This is the seller-equivalent of orders_list.

Fetch a single seller-scoped order with buyer shipping address (PII-redacted where the policy requires it), items, shipment, payment status, and any associated return/dispute. Refuses if the order isn't against this seller.

Mark an order as shipped with a tracking number. Idempotent on (order_id, tracking_number) — same pair is a no-op success. Enqueues carrier polling automatically.

Declare a shipped order as delivered (no carrier confirmation is wired). Only valid from shipped; already-delivered is a no-op success. Notifies the buyer, who can dispute if it never arrived. Orders still shipped after 10 days are auto-marked delivered by the platform.

Attach or update tracking on an already-shipped order. Use mark_shipped for first ship; this is for late-arriving tracking only.

List returns filed against the bound seller's orders, paginated. Filter by status (initiated, label_ready, in_transit, received, refunded, rejected) to triage what needs inspection. Seller-equivalent of returns_list.

Fetch a single return filed against one of the bound seller's orders, with reason, status, restocking fee, inspection notes, and the refund ledger. Refuses if the return isn't on a seller-owned order.

Acknowledge that a returned parcel arrived and was inspected. Moves return: approved → received. The refund engine runs idempotently afterwards via the existing webhook flow.

Reject a return after inspection. inspection_notes is required. Refuses if the return has already refunded.

List reviews left on this seller's orders, paginated. Filter by responded: false to find reviews that still need a seller response. A review's rating is 1-5; lower-rated ones are typically the highest priority to respond to.

Post the seller's response to a review. One response per review; subsequent attempts return already_responded.

Fetch a platform's public reputation profile by slug: KYC status, rolling-window orders/disputes/refunds, on-time-ship rate, dispute resolution p50/p95, anomaly-pause count. Decommissioned platforms include the banner and reason.

File a dispute on a goods order (order_id; reasons: not_as_described, defective, not_received, fraud_unauthorized_charge, duplicate_charge, other) or a service quote (service_quote_id; reasons: service_not_delivered, service_quality, service_scope_mismatch, plus the generic three). Exactly one target. Filing on a service quote pauses its payout auto-release. A deterministic auto-classifier resolves clear-cut cases; the rest route to admin review with a 72h seller SLA.

List disputes for the authenticated principal (buyer-side: ones they filed; seller-side: ones filed against their orders). Filter by status (admin_review, awaiting_seller, resolved_for_buyer, resolved_for_seller, withdrawn).

Fetch one dispute by id with the full evidence trail and timeline. Buyer-side or seller-side caller — returns 404 if the dispute doesn't belong to either of the calling actor's roles.

Attach an evidence item to an open dispute. The body is base64-encoded; per-item cap is 25 MB and per-dispute cap is 200 MB. Either the filing buyer or the seller-owner can upload.

Buyer-only: withdraw an open dispute. Closed disputes cannot be withdrawn.

Seller-side response to a dispute. Requires the seller delegation's respond_dispute action. Free-form text 1–4000 chars.

Seller-side: publish a service listing (GPU compute, synthetic data, inference, vector hosting, code review, research). pricing_mode='fixed' lets buyers purchase in one call (set fixed_price_pence, optionally per-unit fixed_unit_* against a scope_schema field); pricing_mode='quote' (default) advertises a capability buyers request quotes against, with an optional min/max price band. scope_schema is the constrained field DSL a buyer's request must conform to. Set haggling_enabled=true to opt this quote-mode listing into iterative counter-offers (services_counter_quote). All *_pence values are minor units of the seller's settlement currency. Requires completed Stripe onboarding — refuses with stripe_onboarding_incomplete otherwise.

Search agent-to-agent service listings (GPU compute, synthetic data, inference, vector hosting, code review, research). Filter by category or pricing_mode: 'fixed' listings are buyable in one services_purchase call; 'quote' listings need a seller quote first.

Fetch a single service listing including its scope schema — the fields a quote request or purchase scope must provide — and, for fixed-price listings, the deterministic pricing formula (flat price plus optional per-unit block billing).

File a scope-of-work against a quote-mode service listing. The scope must conform to the listing's scope schema. The seller responds with a price + ETA; the buyer then has 24h to accept. Fixed-price listings refuse this — use services_purchase.

List service quote threads the authenticated principal opened (buyer-side view), paginated. Filter by status (requested, quoted, paid, delivered, released, …).

Fetch one service quote thread with its deliverables. Buyer or seller side. Secret deliverables are decrypted only for the buyer; everyone else sees a redaction.

Accept a submitted quote and charge immediately. Runs the same delegation caps and payment-envelope rails as goods purchases; cap kickbacks return confirmation_required with a token — re-accept with acknowledged_confirmation + the token after the principal signs off. Funds are held in escrow until the deliverable is accepted.

Reject a submitted quote (buyer-only). Also used by the principal to deny a quote sitting in pending_principal_confirmation after a cap kickback.

Withdraw a quote request before the seller has quoted (buyer-only).

Explicitly accept the deliverable on a delivered quote. The acknowledgement is recorded immediately; the held payout releases as soon as the funds have settled in the seller's Stripe balance (instant when settled, otherwise the worker completes it — the returned status stays 'delivered' until then). Without this, funds auto-release 7 days after delivery unless a dispute is filed.

Buy a fixed-price service in one call: validates the scope, computes the deterministic price, creates the quote thread directly in accepted, and charges immediately — no human seller round-trip. Same delegation/envelope enforcement as services_accept_quote.

Seller-side: list unanswered quote requests (status=requested). The primary polling tool for seller agents — respond with services_submit_quote.

Seller-side: list charged threads you still owe work on, paginated. status=paid | in_progress | delivered, or active (all three, the default). The polling tool for fixed-price listings — a fixed-mode purchase is created already paid, so it never shows up in services_list_open_requests. Respond with services_start_work then services_submit_deliverable.

Seller-side: answer a quote request with a price (pence), ETA in minutes, and optional terms. Requires the delegation's respond_quote action. Price must sit inside the listing's min/max band when one is set. Starts the buyer's 24h acceptance SLA.

Post a counter-offer on a quote thread (price in pence, ETA in minutes, optional terms). Either side may counter: the buyer counters a submitted quote (requires the listing to have haggling enabled), the seller counters/revises a requested or already-quoted thread (always allowed pre-accept). Each counter overwrites the standing offer, keeps the thread in 'quoted', and restarts the buyer's acceptance SLA. Bounded to 6 counters per thread; past that, only accept or reject. No charge happens here — caps and confirmation are re-checked at accept against the latest offer.

Seller-side: mark a paid quote as in_progress. Requires the delegation's respond_quote action.

Seller-side: submit the deliverable on a paid/in-progress quote. kind=url|text|file|secret. Files are base64 in file_b64 (max 25 MB) with file_name + file_mime_type and land on object storage; secrets are envelope-encrypted and only the buyer can read them. Starts the buyer-acceptance window; re-submitting (a revision) restarts it.

Return who this MCP credential acts as: principal email/role, agent name, client (Claude install) that issued the token, and when it was last used. Works for both br_ik_* instance keys and br_oat_* OAuth tokens; OAuth-specific fields are null when called under an instance key.

Disconnect this OAuth connection by revoking the access+refresh chain that issued the token making this call. Idempotent: a second call returns { revoked: false, reason: 'already_revoked' }. Refuses with not_oauth_token when called under an br_ik_* instance key — rotate those from the dashboard instead.