Heykey vs Langfuse
Heykey vs Langfuse, compared side by side on 10 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: Heykey is on 8/100 and Langfuse on 55/100.
Where each one leads
Heykey
- agent readiness: 51/100 against 43/100
Langfuse
- our overall score: 55/100 against 8/100
At a glance
| Measure | Heykey | Langfuse |
|---|---|---|
| What it is | Heykey provides a unified AI API gateway and admin dashboard for developers to manage and optimize their AI model integrations. | Open-source LLM engineering platform for debugging, monitoring, and improving production-grade LLM applications. |
| Category | API Platform, AI Infrastructure, Developer Tools, MLOps | MLOps, Observability, Developer Tools, API Platform |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | Not published | 2022 |
| Headquarters | Not published | Berlin, Germany |
| Status | Active | Active |
Size, funding and growth
| Measure | Heykey | Langfuse |
|---|---|---|
| Employees | Not published | 21 |
| Headcount growthLast 12 months | Not published | +81.0% |
| Total funding | Not published | $2.5M |
| Latest round | Not published | Seed |
| LinkedIn followers | Not published | 13,143 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Heykey | Langfuse |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 8/100 | 55/100 |
| Traction | Not published | 45/100 |
| Team | Not published | 70/100 |
| Search visibility | 8/100 | 58/100 |
| Quality | Not published | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (51/100) | D (43/100) |
| Domain ratingLink authority, 0-100 | Not published | 79/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Heykey | Langfuse |
|---|---|---|
| Hosting | Self Managed | Vercel |
| CDN | Not detected | Vercel |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Analytics | Not detected | Google Analytics 4, Google Tag Manager, Segment |
| Support stack | Not detected | HubSpot |
| Open source | No | Yes |
Product and pricing
| Measure | Heykey | Langfuse |
|---|---|---|
| Key features | Not published | Full Context Tracing, Cost & Latency Monitoring, Output Quality Evaluation, Prompt Management & Experimentation, Testing & Benchmarking |
Heykey vs Langfuse: common questions
Which is better, Heykey or Langfuse?
On our 0-100 score Langfuse rates higher (55/100 against 8/100). 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 10 data points above: read the rows that match what you are buying for.
How do Heykey and Langfuse compare on the numbers?
Heykey leads on agent readiness (51/100 against 43/100). Langfuse leads on our overall score (55/100 against 8/100).
Read the full Heykey review and pricing or the Langfuse review and pricing. You can also browse other Heykey alternatives we track.