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SalesBuilderby Startups.Studio
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How SalesBuilder is built

Six layers, from who you reach to what you try next, on three base records: each calls only the layers below it.

Six layers sit on three base records. A layer calls only the layers below it, and Events flow up.

One call per layerMode try
You, to your agent

Show me one call from each layer for our first cold email, as a dry run.

curl -X POST "https://api.sb/leaseline.app/contacts/contact_22/enrich?mode=try" \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"

curl -X POST "https://api.sb/leaseline.app/messages/message_3/schedule?mode=try" \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"at":"2026-11-03T14:00:00Z"}'

curl -X POST "https://api.sb/leaseline.app/contacts/contact_22/enroll?mode=try" \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"sequence":"founder-thread"}'

curl -X POST https://api.sb/leaseline.app/tasks/next \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"

curl -X POST "https://api.sb/leaseline.app/play-mixes/compile?mode=try" \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"startup":"leaseline.app"}'
import { $ } from 'startup-builder'
const sb = $.with({ namespace: 'leaseline.app' })

await sb.Contact.enrich({ contact: 'contact_22' }, { mode: 'try' })   // Lists: who it goes to
await sb.Message.schedule({ message: 'message_3', at: '2026-11-03T14:00:00Z' }, { mode: 'try' })   // Sending: from dana@leaseline.app
await sb.Contact.enroll({ contact: 'contact_22', sequence: 'founder-thread' }, { mode: 'try' })   // Sequences: follow-ups that stop when they reply
const { task } = await sb.Task.next()   // Team: your SDR agent’s next Task
return await sb.PlayMix.compile({ startup: 'leaseline.app' }, { mode: 'try' })   // Plays: what to try next

npx startup-builder do Contact.enrich --json '{"contact":"contact_22"}' --try
npx startup-builder do Message.schedule --json '{"message":"message_3","at":"2026-11-03T14:00:00Z"}' --try
npx startup-builder do Contact.enroll --json '{"contact":"contact_22","sequence":"founder-thread"}' --try
npx startup-builder do Task.next
npx startup-builder do PlayMix.compile --json '{"startup":"leaseline.app"}' --try
{
  "name": "do",
  "arguments": {
    "code": "const sb = $.with({ namespace: 'leaseline.app' })\nawait sb.Contact.enrich({ contact: 'contact_22' }, { mode: 'try' })   // Lists: who it goes to\nawait sb.Message.schedule({ message: 'message_3', at: '2026-11-03T14:00:00Z' }, { mode: 'try' })   // Sending: from dana@leaseline.app\nawait sb.Contact.enroll({ contact: 'contact_22', sequence: 'founder-thread' }, { mode: 'try' })   // Sequences: follow-ups that stop when they reply\nconst { task } = await sb.Task.next()   // Team: your SDR agent’s next Task\nreturn await sb.PlayMix.compile({ startup: 'leaseline.app' }, { mode: 'try' })   // Plays: what to try next",
    "mode": "try"
  }
}
Response200application/json
{
  "$id": "https://api.sb/leaseline.app/play-mixes/play-mix_1",
  "$type": "PlayMix",
  "customers": 0,
  "hours": 3,
  "budget": 0,
  "plays": [
    {
      "play": "warm-intros",
      "rank": 1
    },
    {
      "play": "cold-email",
      "rank": 2
    },
    {
      "play": "signup-interviews",
      "rank": 3
    }
  ]
}
sample

A layer calls only the layers below it, and Events flow up: a Sequence never calls a Play, it emits an Event that a Play hears.

Lists

It answersIts filesIts callsNot live yet
Who you sell toaudiences/POST /{namespace}/contacts/{contact}/enrich, POST /{namespace}/contacts/{contact}/merge, POST /{namespace}/visitors/{visitor}/identify, POST /{namespace}/leads/{lead}/qualify, POST /{namespace}/leads/{lead}/assign, POST /{namespace}/contacts/{contact}/suppressOrganization.enrich (Not live yet, gaps #2), Contact.import (Not live yet, gaps #2), Prospect.find (Not live yet, gaps #2)
Pages in this layer
Find your first customers

Content

It answersIts filesIts callsNot live yet
What you saycontent/POST /{namespace}/content/draft, POST /{namespace}/content/{content}/publish, POST /{namespace}/posts/{post}/publish, POST /{namespace}/videos/draft, POST /{namespace}/keywords/{keyword}/measure, POST /{namespace}/reviews/{review}/publishContent.refresh (Not live yet, gaps #2), Content.withdraw (Not live yet, gaps #2)
Pages in this layer
Research demand, Check AI answers, Size up competitors, Make content, Publish and post, Get indexed, Earn first links, Directory submissions, Launch circuit, Run ads, Measure

Sending

It answersIts filesIts callsNot live yet
Where it runssystems/, domains/POST /{namespace}/domains/{domain}/authenticate, POST /{namespace}/mailboxes/{mailbox}/warm, POST /{namespace}/handles/{handle}/connect, POST /{namespace}/messages/{message}/schedule, POST /{namespace}/messages/{message}/broadcast, POST /{namespace}/posts/{post}/schedulemail and gifts
Pages in this layer
Reach out, Instant response, Replies and routing, Signup flows, Meetings, Sequences, When to reach out, Work old leads

Sequences

It answersIts filesIts callsNot live yet
When it happenssequences/, funnels/, workflows/POST /{namespace}/contacts/{contact}/enroll, POST /{namespace}/enrollments/{enrollment}/pause, POST /{namespace}/leads/{lead}/nurture, POST /{namespace}/meetings/book, POST /{namespace}/deals/{deal}/advance, POST /{namespace}/renewals/openReferral.invite (Not live yet, gaps #3)
Pages in this layer
Offers and trials, Quotes and discount approval, Open Deals, Onboarding, Open, Qualified, Proposed, Won, Lost, Who might cancel, When someone cancels, Failed payments, Win-back, Renewals, More seats and upgrades, What they tell you, Reviews, references and referrals

Team

It answersIts filesIts callsNot live yet
Who does itagents/POST /{namespace}/roles/{role}/staff, POST /{namespace}/mandates/authorize, POST /{namespace}/approvals/{approval}/approve, POST /{namespace}/tasks/next, POST /{namespace}/actions/{action}/redirect, POST /{namespace}/actions/{action}/evaluateround-robin across agents
Pages in this layer
How your agents act

Plays

It answersIts filesIts callsNot live yet
What to try nextplays/POST /{namespace}/play-mixes/compile, POST /{namespace}/experiments/{experiment}/start, POST /{namespace}/experiments/{experiment}/conclude, POST /{namespace}/processes/{process}/pauseCampaign.start (Not live yet, gaps #2), Campaign.pause (Not live yet, gaps #2)
Pages in this layer
Plays, Agent legibility, Answer engine optimization, Category kit, Community answers, Data stories, Editorial SEO, Guest circuit, Integration partners, Launch sites, Launch week, Paid search, Paid social, Programmatic SEO, Review requests, Sponsorships, Tools on request, Account ads, Account visits, Agent registries, Archive repurposing, Benchmark rows, Build in public, Buying committee, Cold email, Creator ads, Creator probe, Creator retainers, Directory listings, Engagement bridge, Events and webinars, Field presence, Founder voice, Free tools, Gifting, Give before you ask, Hosted gatherings, Instant response, Lead reactivation, LinkedIn outbound, Made-with line, Marketplace listings, Moment outreach, Organic social, Outbound calling, Owned community, Owned newsletter, Positioning tournament, Product signals, Promote winners, Proof-of-work outreach, Retargeting, Video ladder, Warm intros, Agent-to-agent selling, Closer handoff, Data residency, Deposits before you build, Developer relations, Lead nurture, Open source, Paid pilot, Product-led growth, Risk-reversal offers, Switch kit, Trust pack, Waitlist interviews, Written references, Annual prepay, Next order due, Objection watch, Run it beside the old tool, Signal expansion, Single sign-on upgrade, Usage upsell, Category hubs, Champion follow, Commission partners, Creator partnership, Customer referrals, Family opt-in, House ads, Portfolio cross-sell, Sibling audiences

The base

The baseIts filesIts callsWhere it lives
What you selloffers/POST /{namespace}/offers/{offer}/publish, POST /{namespace}/offers/{offer}/trial, POST /{namespace}/orders/place, POST /{namespace}/quotes/{quote}/sendOffers and trials
Who has paidthe Customer recordsPOST /{namespace}/customers/{customer}/activate, POST /{namespace}/subscriptions/{subscription}/keep, POST /{namespace}/subscriptions/{subscription}/resize, POST /{namespace}/invoices/{invoice}/collectCustomers
How you scoremetrics/POST /{namespace}/metrics/define, POST /{namespace}/metrics/query, POST /{namespace}/metrics/{metric}/watchRevenue

Compiled, not written: edit its page, then regenerate. Every step runs from a sentence or a line of code. In your words: the CRM words you know, and where each lives here.

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Contents

ListsContentSendingSequencesTeamPlaysThe base