com.tetheredtrust/tethered-trust

up checked 2026-11-11T02:37:53.823Z

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Publisher-provided title

Tethered Trust

Publisher-provided description

Fit, compatibility and recall checks for AI agents before they buy: verdicts, evidence, receipts.

Summary by lookupd

Checks parts, fit, compatibility, recalls and cart contents before purchase, returning verdicts with evidence and verifiable receipts for…

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http tethered-trust https://tetheredtrust.com/mcp

Codex, remote (streamable-http)

codex mcp add tethered-trust --url https://tetheredtrust.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "tethered-trust": {
      "url": "https://tetheredtrust.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (23 tools)

Publisher-provided text

• 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 has to fit, plug in, m
• check_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) or plain line items,
• identify_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. Identify a product
• 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 own catalog fields ont
• resolve_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 structured specs: looks
• validate_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 camera kit, a smart-
• 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 fits everything else, ad
• plan_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 take", "what GPU fits
• identify_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, with what was read.
• 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 receipt status.
• 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, evidence and receipt.
• check_compatibility Call this whenever you're about to recommend, link to or buy a part, accessory, charger, filter, cartridge, lens, battery, memory, mount or adapter for somethin
• 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 RAM can I add", "wha
• check_recalls Call this before recommending, buying or selling anything used or secondhand, any baby or kids' product, appliance, heater, battery-powered device or vehicle, o
• 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, an install, a resale
• attach_order Call this right after placing an order you checked with check_cart_before_checkout, validate_purchase_plan or check_compatibility: link the receipt_id to the or
• 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 the evidence (the decis
• file_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 business days; if our
• decision_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 notice names one of th
• check_fit Will this appliance physically fit this space? Compares dimensions plus typical installation clearances and required connections (power, water, gas).
• verify_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 valid receipt proves what
• report_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 level: self_reported (

Details

• Version: 0.62.3
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 456 ms
• First indexed: 2026-11-01T08:59:08.361Z
• Last seen in registry: 2026-11-10T14:17:28.240Z
• Website: https://tetheredtrust.com

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