Categories › AI & Agents › Multi-agent, orchestration & workflows
Fit, compatibility and recall checks for AI agents before they buy: verdicts, evidence, receipts.
Remote server: your requests and data go to tetheredtrust.com. Claude Code: claude mcp add --transport http tethered-trust https://tetheredtrust.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
how_it_works — What Tethered Trust is, what it covers, where its data comes from, pricing and terms.list_coverage — Which product categories and models are in the compatibility graph, with counts. Pass a category to list its models. Covers anything that hacheck_cart_before_checkout — Checks a cart at checkout. Takes the checkout session exactly as a commerce protocol returns it (a UCP checkout or an ACP CheckoutSession) oidentify_product — Call this when the person gives a shop link, ASIN, barcode or vague product name and you need the exact model and what it's compatible with.list_standards — Call this before sending products described by their specs instead of model numbers (e.g. specs_from or a custom product), or to map your owresolve_product — Call this to confirm exactly which model the person means before checking or buying ("which Galaxy S25 is this?") or to read a product's strvalidate_purchase_plan — Call this before you recommend or order two or more items that have to work together or with what the person owns (a PC build or upgrade, a fix_purchase_plan — When a plan comes back incompatible or conditional: the smallest set of changes that makes it work (swap a part for a verified one that fitsplan_upgrade — Call this when the person asks what they can upgrade or add to a device they own ("can I add more RAM to my laptop", "what SSD does my PC taidentify_from_photo — Read the brand, model and part numbers from a photo of a label or nameplate and match them to products. Matches are returned as candidates, recheck_plan — Re-run a saved purchase plan against today's data before ordering, and see what changed since it was issued: decisions, product records, or check_batch — Up to 25 independent compatibility checks in one call (e.g. ranking candidate products for one device). Each result has its own decision, evcheck_compatibility — Call this whenever you're about to recommend, link to or buy a part, accessory, charger, filter, cartridge, lens, battery, memory, mount or find_parts — Call this when the person names a device or appliance they own and needs a replacement or add-on ("what filter does my fridge take", "which check_recalls — Call this before recommending, buying or selling anything used or secondhand, any baby or kids' product, appliance, heater, battery-powered watch_decision — Call this after a compatibility check, purchase plan, verify_page or verify_mcp result that someone will rely on later (an order next week, attach_order — Call this right after placing an order you checked with check_cart_before_checkout, validate_purchase_plan or check_compatibility: link the dispute_packet — Call this when an agent purchase is disputed, returned as wrong, or charged back and a Tethered Trust receipt exists for it: we assemble thefile_claim — Call this when a product we said would work didn't (within 60 days of the check): send the receipt_id and what happened. Decided within 10 bdecision_status — Call this right before acting on a watched decision: still_holds, changed (a record it rested on was updated), recall_on_record (a recall nocheck_fit — Will this appliance physically fit this space? Compares dimensions plus typical installation clearances and required connections (power, watverify_receipt — Check a Tethered Trust receipt: is the signature ours, is it still within valid_until, and have the records behind it changed since? A validreport_outcome — After a purchase, report whether it actually fit. Free, safe to call, and only the first report per check counts. Reports are weighted by leNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.