Harvey
Our own sales agent: it finds companies that look like good customers and drafts the first email for approval.
Harvey is an internal tool. It finds companies that match the signals of a good customer, finds the right contact person and drafts a personal first email. Nothing is sent without human approval. We use it for Full Stack Partner's own outbound sales, and the same setup can be offered to clients as a service.
- Stage
- Internal, demo
- Launch market
- Our own sales; later clients
- Revenue
- Internal value; planned as a service
- Price
- Service planned from $500 a month
- Buyer
- Ourselves; small B2B companies
- Stack
- Python · Claude
The problem
- Finding the right companies and contacts by hand takes hours per day.
- Generic cold emails get ignored.
- Automated tools often send too much, too fast, and break marketing rules.
The product
Harvey works from signals we approve, for example companies hiring developers or with an outdated website. It researches each company, finds the decision maker, writes a personal first email and puts it in an outbox. A human approves each email before it is sent.
- We define the signals of a good customer.
- Harvey finds companies that match.
- It finds the right contact and verifies the email.
- It drafts a personal first email.
- A human approves or edits; only then is it sent.
Who pays and why
Business model
| Revenue line | Price | Notes |
|---|---|---|
| Internal | Cost saving | Hours of research saved per week. |
| Outbound as a service | From $500 / month (planned) | Setup, signals, approval workflow. |
Market and targets
Every B2B company needs new customers, and outbound research is slow manual work. A careful, approval-first agent is a safer alternative to bulk email tools.
Targets are planning assumptions.
Go-to-market
Use it ourselves
- Train on our best customer profiles
- Measure reply and meeting rates
- Refine signals
Offer to clients
- Package as a managed service
- Case study from our own numbers
Channels
| Own results | The best proof is our own pipeline. |
|---|---|
| Existing clients | Offer it to companies we already work with. |
Competition
| Alternative today | Why we win |
|---|---|
| Bulk cold email tools | Volume over quality, legal risk. |
| Sales assistants | Expensive and slower. |
| Buying lead lists | Outdated and generic. |
What we measure
- Approved drafts per week
- Reply rate
- Meetings booked
- Time saved per lead
Status and roadmap
- Company and contact discovery
- Draft emails
- Outbox with approval before sending
- Dedicated sending domain and mailbox
- Training on our best customers
- Email verification
Risks
| Risk | How we handle it |
|---|---|
| Marketing law on cold email | Only send where the law allows, approval on every email, easy opt-out. |
| Wrong contacts | Verification before drafting. |
| Deliverability | Separate sending domain and low volume. |
Want a product like this?
We build version one of products like Harvey from about $3,000: web app, admin panel, mobile app and API, live on your own domain. Then we can host and maintain it for $500 a month.