Emdash vs Mastra
Emdash vs Mastra, compared side by side on 19 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: Emdash is on 24/100 and Mastra on 77/100.
Where each one leads
Emdash
Leads on none of the measures we hold for both companies.
Mastra
- our overall score: 77/100 against 24/100
- agent readiness: 58/100 against 21/100
- domain rating: 76/100 against 26/100
At a glance
| Measure | Emdash | Mastra |
|---|---|---|
| What it is | An agentic development environment orchestrating heterogeneous AI models across multiple providers. | An open-source TypeScript/JavaScript framework for building AI agents, from the creators of Gatsby. |
| Category | Agentic AI, AI Agents, Developer Tools, AI Infrastructure | Agentic AI, AI Agents, Developer Tools, Open Source |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2023 | 2024 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Emdash | Mastra |
|---|---|---|
| Employees | Not published | 53 |
| Headcount growthLast 12 months | Not published | +204.5% |
| Total funding | Not published | $35.5M |
| Latest round | Not published | Series A |
| LinkedIn followers | Not published | 6,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Emdash | Mastra |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 24/100 | 77/100 |
| Traction | Not published | 70/100 |
| Team | Not published | 90/100 |
| Community | 13/100 | 38/100 |
| Search visibility | 15/100 | 68/100 |
| Quality | 35/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (21/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 26/100 | 76/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Emdash | Mastra |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Vercel | Vercel |
| Frameworks | Next.js, Tailwind CSS | Next.js, Tailwind CSS |
| Open source | Yes | Yes, 15,100 GitHub stars |
| Self-hostable | No | Yes |
Product and pricing
| Measure | Emdash | Mastra |
|---|---|---|
| Key features | Not published | AI Agent Framework, Workflows, RAG, Evals, Memory & Tool Selection, Open Source & Modular |
What users say
| Measure | Emdash | Mastra |
|---|---|---|
| Community ratingVisitor votes on StartupHub | 5.0/5 from 1 vote | 5.0/5 from 2 votes |
Emdash vs Mastra: common questions
Which is better, Emdash or Mastra?
On our 0-100 score Mastra rates higher (77/100 against 24/100). 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 19 data points above: read the rows that match what you are buying for.
How do Emdash and Mastra compare on the numbers?
Mastra leads on our overall score (77/100 against 24/100), agent readiness (58/100 against 21/100), domain rating (76/100 against 26/100).
Read the full Emdash review and pricing or the Mastra review and pricing. You can also browse other Emdash alternatives we track.