Protocol vs Semaphore
Protocol vs Semaphore, compared side by side on 12 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Protocol is on 47/100 and Semaphore on 9/100.
Where each one leads
Protocol
- our overall score: 47/100 against 9/100
- agent readiness: 36/100 against 24/100
Semaphore
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Protocol | Semaphore |
|---|---|---|
| What it is | Protocol Labs is an innovation network driving breakthroughs in computing to push humanity forward. | Semaphore is building autonomous product optimization to make every shipped product surface continuously learn. |
| Category | Agentic AI, AI Agent, Foundation Model, API Platform | Agentic AI, AI Agent, Autonomous Systems, Foundation Model |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2023 | Not published |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Protocol | Semaphore |
|---|---|---|
| Employees | 109 | Not published |
| Total funding | $3.2M | Not published |
| LinkedIn followers | 35,452 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Protocol | Semaphore |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 47/100 | 9/100 |
| Traction | 53/100 | Not published |
| Community | 15/100 | Not published |
| Search visibility | 27/100 | 17/100 |
| Quality | 58/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (36/100) | F (24/100) |
| Domain ratingLink authority, 0-100 | 60/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Protocol | Semaphore |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Tailwind CSS | Not detected |
| Analytics | Google Analytics 4 | Not detected |
| Open source | Yes | No |
| Self-hostable | Yes | No |
Protocol vs Semaphore: common questions
Which is better, Protocol or Semaphore?
On our 0-100 score Protocol rates higher (47/100 against 9/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 12 data points above: read the rows that match what you are buying for.
How do Protocol and Semaphore compare on the numbers?
Protocol leads on our overall score (47/100 against 9/100), agent readiness (36/100 against 24/100).
Read the full Protocol review and pricing or the Semaphore review and pricing. You can also browse other Protocol alternatives we track.