btw MCP server
Agentic group buying. Agents pool demand into chains that clear at a group price. Waitlist is open.
Little public usage data yet
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
btw tools (18)
write = sends, deletes, buys or postsbook_statsFreeCounts at a glance: live, queued, filled. Use status for the live product.
get_chainFreeOne product by slug. Prefer status.
holdFreeHold your human a spot on the live product. Needs their email. Returns the price this spot locks and a link where they save a card; the spot is held once they do. The first spots lock at the early price; every spot after locks at the group price. The result says which one this spot got. Nothing is charged now. If the product fills, the deposit is charged and applied to their purchase; they pay the balance to the brand. If it doesn't fill, nobody pays. Stripe test mode. Test cards only, no real money moves.
joinFreeThe old name for hold. Hold your human a spot on the live product. Needs their email. Returns the price this spot locks and a link where they save a card; the spot is held once they do. The first spots lock at the early price; every spot after locks at the group price. The result says which one this spot got. Nothing is charged now. If the product fills, the deposit is charged and applied to their purchase; they pay the balance to the brand. If it doesn't fill, nobody pays. Stripe test mode. Test cards only, no real money moves.
join_chainFreeThe old v1 join. Use hold instead.
leaveFreeThe old name for release. Release a held spot. Needs the product slug, the email that holds it, and the commitment id from hold or status. Nothing is charged for a released spot.
list_chainsFreeEvery product btw has run or queued: the live one, what's up next by wants, and what filled or closed. Use status for the live one.
parkFreeOld style: park what your human wants in plain words with the most they'd pay. Prefer want with a link.
park_intentFreeThe old v1 park. Use want with a link instead.
releaseFreeRelease a held spot. Needs the product slug, the email that holds it, and the commitment id from hold or status. Nothing is charged for a released spot.
statusFreeWhat's live: the product, its list and group price, how many buyers unlock the price, how many are committed, how many want it, spots left, and the deadline if one is set. Give a slug to ask about another product, and an email to also see that person's spot.
sync_wishlistFreeRead a public wishlist and record every item as a want for your human. Amazon wishlists and Steam wishlists. Takes the list link plus their email. Returns the items found and how many others want each one. If the server can't read the list, the reply says so; then open the list yourself and pass the ASINs, or call want once per product link. A new email also joins the waitlist. btw doesn't buy from Amazon. The link is how we know what you want; the group price comes from the brand.
waitlistFreeOld style: put your human on the list to hear when the next product goes live. Prefer want with a link, or hold on what's live. Needs their email. Optionally say what they want to buy and which agent platform you are.
wantFreeSay your human wants something. Takes a link or an ASIN plus their email. A hotel link becomes a stay want (give month, and nights if known), a subscription link becomes a software want (give plan), anything else is gear. Or set type and the fields outright: stay needs hotel and month, home needs job and zip, software needs product and plan. Records the want and returns the item with how many others already want it. If you already read a page yourself, pass asins instead of a link. A new email also joins the waitlist. btw doesn't buy from Amazon. The link is how we know what you want; the group price comes from the brand.
want_gymFreeYour human wants a membership at a gym or studio near them. Takes the name, their five digit zip, the plan (monthly, annual, class-pack, other), and their email. People near the same gym on the same plan count together; when enough do, btw asks for a group rate.
want_homeFreeYour human wants a home job done: solar, home-battery, ev-charger, heat-pump, roof, windows, sauna-install, other. Takes the job, their five digit zip, an optional note, and their email. Homes near each other wanting the same job count together; when enough do, btw gets a group quote from local installers. Returns how many others nearby want it.
want_softwareFreeYour human wants a software subscription at group pricing. Takes the product (name or link), the plan (individual, family, team, other), and their email. Annual plans; vendors already have volume tiers and btw brings the volume. Returns how many others want the same product on the same plan.
want_stayFreeYour human wants a hotel in a given month. Takes the hotel (name or link), the month as YYYY-MM, nights if known, and their email. People wanting the same hotel in the same month count together; when enough do, btw asks the hotel for a group rate. Returns how many others want it.
Public scan report
scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it
- –Code scanremote-only server, no package to scann/a
- Live reliabilityremote reachable in 873ms20/20
- Tool poisoning18 tool descriptions checked15/15
- Auth qualityopen endpoint, read-only tools10/15
- Maintenanceno repository listed3/15
- Maintainer identityverified namespace with website, no repo4/10
Findings (1)
- lowNo source repository listed
maint.no-repo
Install directly
claude mcp add --transport http btw https://btw.space/mcp?utm_source=mcp-registry
btw: common questions
- Is btw MCP server safe?
- With care: it is graded C, so read the findings first (69/100). Read the btw safety report
- How do I install btw?
- It runs remotely at btw.space. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does btw need an API key?
- Not as far as the registry entry and our scan can tell: no credentials are declared or required.
- Is btw maintained?
- The latest release is v2.1.0.
- Is btw up?
- 100% of our last 5 checks got an answer. We check remote servers about four times a day.