What this MCP does
Supports group-buying demand collection, product and service wants, waitlists, spot holds, releases, wishlist syncing, and conditional deposits.
Capabilities
Tools
19
tools
book_stats
Book stats
Counts at a glance: live, queued, filled. Use status for the live product.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
get_chain
Get one chain
One product by slug. Prefer status.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['id'], 'properties': {'id': {'type': 'string', 'minLength': 1, 'description': 'chain slug'}}}
hold
Hold a spot
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.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['email'], 'properties': {'ref': {'type': 'string', 'maxLength': 16, 'description': "a referral code from another buyer's link, the r= part"}, 'name': {'type': 'string', 'maxLength': 40, 'description': 'first name and last initial, shown on the product page'}, 'chain': {'type': 'string', 'description': "a product slug; leave it out for what's live"}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email"}, 'invite_code': {'type': 'string', 'description': 'not needed any more'}, 'max_price_usd': {'type': 'number', 'description': 'optional cap on the deposit in dollars'}}}
join
Hold a spot (old name)
The old name for hold. Hold your human a spot on the live product. Needs their email. Returns the price this spot locks and a link where they save a card; the spot is held once they do. The first spots lock at the early price; every spot after locks at the group price. The result says which one this spot got. Nothing is charged now. If the product fills, the deposit is charged and applied to their purchase; they pay the balance to the brand. If it doesn't fill, nobody pays. Stripe test mode. Test cards only, no real money moves.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['email'], 'properties': {'ref': {'type': 'string', 'maxLength': 16, 'description': "a referral code from another buyer's link, the r= part"}, 'name': {'type': 'string', 'maxLength': 40, 'description': 'first name and last initial, shown on the product page'}, 'chain': {'type': 'string', 'description': "a product slug; leave it out for what's live"}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email"}, 'invite_code': {'type': 'string', 'description': 'not needed any more'}, 'max_price_usd': {'type': 'number', 'description': 'optional cap on the deposit in dollars'}}}
join_chain
Join a chain (old name)
The old v1 join. Use hold instead.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'id': {'type': 'string'}, 'team_name': {'type': 'string'}, 'monthly_commit_usd': {'type': 'number'}}}
leave
Release a spot (old name)
The old name for release. Release a held spot. Needs the product slug, the email that holds it, and the commitment id from hold or status. Nothing is charged for a released spot.
Destructive
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['chain', 'email', 'commitment_id'], 'properties': {'chain': {'type': 'string', 'minLength': 1, 'description': 'product slug'}, 'email': {'type': 'string', 'minLength': 3}, 'commitment_id': {'type': 'string', 'minLength': 1}}}
list_chains
List chains
Every 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.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
my_agent
My agent
What your human's btw agent is watching, with a status on each thing: watching (counting the other agents), group forming (enough want it that btw is talking to the brand), or live (there's a price and a deadline, hold a spot). Takes their email. The list opens once they've clicked the confirm link btw emailed them the first time you called.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['email'], 'properties': {'email': {'type': 'string', 'minLength': 3, 'description': "your human's email"}}}
park
Park a want
Old style: park what your human wants in plain words with the most they'd pay. Prefer want with a link.
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['description', 'max_price_usd'], 'properties': {'email': {'type': 'string', 'description': 'optional, so we can say when a chain opens'}, 'description': {'type': 'string', 'maxLength': 200, 'minLength': 3, 'description': 'what your human wants, plainly'}, 'max_price_usd': {'type': 'number', 'description': "the most they'd pay, in dollars"}}}
park_intent
Park a standing order (old name)
The old v1 park. Use want with a link instead.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'note': {'type': 'string'}, 'category': {'type': 'string'}, 'provider': {'type': 'string'}, 'monthly_cap_usd': {'type': 'number'}, 'min_discount_pct': {'type': 'number'}}}
release
Release a spot
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.
Destructive
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['chain', 'email', 'commitment_id'], 'properties': {'chain': {'type': 'string', 'minLength': 1, 'description': 'product slug'}, 'email': {'type': 'string', 'minLength': 3}, 'commitment_id': {'type': 'string', 'minLength': 1}}}
status
Chain status
What's live: the product, its list and group price, how many buyers unlock the price, how many are committed, how many want it, spots left, and the deadline if one is set. Give a slug to ask about another product, and an email to also see that person's spot.
Read only
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'chain': {'type': 'string', 'description': "a product slug; leave it out for what's live"}, 'email': {'type': 'string', 'description': "check this person's spot"}}}
sync_wishlist
Import a wishlist
Read a public wishlist and add every item to your human's btw agent. Amazon wishlists and Steam wishlists. Takes the list link plus their email; a new email gets an agent. Returns the items found and how many other agents 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. btw doesn't buy from Amazon. The link is how we know what you want; the group price comes from the brand.
Open world
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['email'], 'properties': {'url': {'type': 'string', 'maxLength': 2000, 'description': "the list link. Amazon: open the list, tap Share, copy the link. Steam: the profile's wishlist page"}, 'asins': {'type': 'array', 'items': {'type': 'string', 'maxLength': 20}, 'maxItems': 100, 'description': 'ASINs you read off the list yourself, up to 100'}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}}}
waitlist
Join the waitlist
Old style: put your human on the list to hear when the next product goes live. Prefer want with a link, or hold on what's live. Needs their email. Optionally say what they want to buy and which agent platform you are.
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'want': {'type': 'string', 'maxLength': 200, 'description': 'what your human wants to buy, plainly'}, 'email': {'type': 'string', 'description': "your human's email"}, 'platform': {'type': 'string', 'maxLength': 40, 'description': 'your agent platform, like claude, grok, chatgpt, other'}, 'referral': {'type': 'string', 'maxLength': 120, 'description': "a friend's referral code or link, if you came through one"}}}
want
Add to my agent
Add something to your human's btw agent. Takes a link or an ASIN plus their email; a new email gets an agent. A hotel link becomes a stay (give month, and nights if known), a subscription link becomes software (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. Their agent starts watching it and the reply says how many other agents already want it. If you already read a page yourself, pass asins instead of a link. btw doesn't buy from Amazon. The link is how we know what you want; the group price comes from the brand.
Open world
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['email'], 'properties': {'job': {'type': 'string', 'maxLength': 40, 'description': 'home: solar, home-battery, ev-charger, heat-pump, roof, windows, sauna-install, other'}, 'url': {'type': 'string', 'maxLength': 2000, 'description': 'a product, hotel, or subscription link'}, 'zip': {'type': 'string', 'maxLength': 10, 'description': 'home: five digit US zip'}, 'asin': {'type': 'string', 'maxLength': 20, 'description': 'an Amazon ASIN, 10 letters and digits'}, 'name': {'type': 'string', 'maxLength': 80, 'description': 'gym: the gym or studio name'}, 'note': {'type': 'string', 'maxLength': 200, 'description': 'home or stay: a short note'}, 'plan': {'type': 'string', 'maxLength': 20, 'description': 'software: individual, family, team, other'}, 'type': {'enum': ['gear', 'stay', 'home', 'software', 'gym'], 'type': 'string', 'description': 'skip auto-detection and say the type'}, 'asins': {'type': 'array', 'items': {'type': 'string', 'maxLength': 20}, 'maxItems': 100, 'description': 'ASINs you read off a page yourself, up to 100'}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}, 'hotel': {'type': 'string', 'maxLength': 200, 'description': 'stay: hotel name or link'}, 'month': {'type': 'string', 'maxLength': 7, 'description': 'stay: month as YYYY-MM'}, 'nights': {'type': 'integer', 'maximum': 60, 'minimum': 1, 'description': 'stay: nights, if known'}, 'product': {'type': 'string', 'maxLength': 200, 'description': 'software: product name or link'}}}
want_gym
Want a gym or studio membership
Your human wants a membership at a gym or studio near them. Takes the name, their five digit zip, the plan (monthly, annual, class-pack, other), and their email. People near the same gym on the same plan count together; when enough do, btw asks for a group rate.
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['name', 'zip', 'plan', 'email'], 'properties': {'zip': {'type': 'string', 'maxLength': 10, 'minLength': 5, 'description': 'five digit US zip'}, 'name': {'type': 'string', 'maxLength': 80, 'minLength': 2, 'description': 'gym or studio name'}, 'plan': {'enum': ['monthly', 'annual', 'class-pack', 'other'], 'type': 'string', 'description': 'the plan'}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}}}
want_home
Want a home job
Your 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.
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['job', 'zip', 'email'], 'properties': {'job': {'enum': ['solar', 'home-battery', 'ev-charger', 'heat-pump', 'roof', 'windows', 'sauna-install', 'other'], 'type': 'string', 'description': 'the job'}, 'zip': {'type': 'string', 'maxLength': 10, 'minLength': 5, 'description': 'five digit US zip'}, 'note': {'type': 'string', 'maxLength': 200, 'description': 'anything the installer should know'}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}}}
want_software
Want a subscription
Your human wants a software subscription at group pricing. Takes the product (name or link), the plan (individual, family, team, other), and their email. Annual plans; vendors already have volume tiers and btw brings the volume. Returns how many others want the same product on the same plan.
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['product', 'plan', 'email'], 'properties': {'plan': {'enum': ['individual', 'family', 'team', 'other'], 'type': 'string', 'description': 'the plan'}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}, 'product': {'type': 'string', 'maxLength': 200, 'minLength': 2, 'description': 'product name or a link to it'}}}
want_stay
Want a stay
Your 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.
Open world
Idempotent
Input schema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['hotel', 'month', 'email'], 'properties': {'note': {'type': 'string', 'maxLength': 200}, 'email': {'type': 'string', 'minLength': 3, 'description': "your human's email, same as the waitlist"}, 'hotel': {'type': 'string', 'maxLength': 200, 'minLength': 2, 'description': 'hotel name or a link to it'}, 'month': {'type': 'string', 'maxLength': 7, 'minLength': 6, 'description': 'month as YYYY-MM'}, 'nights': {'type': 'integer', 'maximum': 60, 'minimum': 1, 'description': 'nights, if known'}}}
History
Recent tool changes
Changed
sync_wishlist
Sept. 27, 2026, 2:50 a.m.
Changed
want
Sept. 27, 2026, 2:50 a.m.
Added
my_agent
Sept. 27, 2026, 2:50 a.m.
Changed
park_intent
Sept. 19, 2026, 2:48 a.m.
Changed
join_chain
Sept. 19, 2026, 2:48 a.m.
Changed
get_chain
Sept. 19, 2026, 2:48 a.m.
Changed
book_stats
Sept. 19, 2026, 2:48 a.m.
Changed
park
Sept. 19, 2026, 2:48 a.m.
Changed
leave
Sept. 19, 2026, 2:48 a.m.
Added
release
Sept. 19, 2026, 2:48 a.m.
Changed
status
Sept. 19, 2026, 2:48 a.m.
Changed
join
Sept. 19, 2026, 2:48 a.m.
Added
hold
Sept. 19, 2026, 2:48 a.m.
Changed
list_chains
Sept. 19, 2026, 2:48 a.m.
Changed
waitlist
Sept. 19, 2026, 2:48 a.m.
Added
park_intent
Sept. 17, 2026, 12:55 p.m.
Added
join_chain
Sept. 17, 2026, 12:55 p.m.
Added
get_chain
Sept. 17, 2026, 12:55 p.m.
Added
book_stats
Sept. 17, 2026, 12:55 p.m.
Added
want_gym
Sept. 17, 2026, 12:55 p.m.
Added
want_software
Sept. 17, 2026, 12:55 p.m.
Added
want_home
Sept. 17, 2026, 12:55 p.m.
Added
want_stay
Sept. 17, 2026, 12:55 p.m.
Added
sync_wishlist
Sept. 17, 2026, 12:55 p.m.
Added
want
Sept. 17, 2026, 12:55 p.m.
Added
park
Sept. 17, 2026, 12:55 p.m.
Added
leave
Sept. 17, 2026, 12:55 p.m.
Added
status
Sept. 17, 2026, 12:55 p.m.
Added
join
Sept. 17, 2026, 12:55 p.m.
Added
list_chains
Sept. 17, 2026, 12:55 p.m.
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