| What it does | Open-source agent harness engineering platform built on OpenTelemetry
| AI agent observability for Elixir
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| Stage | Startup
| MVP
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| Founded | 2024
| 2026
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| Based in | IN
| Not given
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| Pricing model | Open source
| Freemium
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| Pricing | Open source (Apache 2.0): Free self-hosted with unlimited usage. Enterprise Edition: Contact sales for pricing. Cloud: Coming soon.
| Free: €0/month with 100,000 accepted events/month, 100 MB/hour, 14 days retention, 1 project, 2 users. Pro: €29/month with 1,000,000 accepted events/month, 2.5 GB/hour, 30 days retention, unlimited projects and users. Scale: €99/month with 10,000,000 accepted events/month, 5 GB/hour, 90 days retenti
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| Key features | - OpenTelemetry-native LLM tracing for every call, tool, and retrieval
- Agent evals with LLM-as-a-judge and heuristics
- Prompt Hub for versioning and deployment without code changes
- Guardrails for prompt injection, jailbreak, and sensitive topic detection
- Vault for encrypted API key management
- OpenGround for side-by-side LLM model comparison
- GPU monitoring for utilization, memory, temperature, and power
- Coding agent observability for Claude Code, Codex, and Cursor
- Cost tracking and latency monitoring
- 56+ integrations with LLMs, frameworks, and vector databases
| - Model and tool call tracing in unified timeline
- Inspect failed steps with inputs and outputs
- Monitor throughput, latency, errors, tokens, and cost
- Single Elixir dependency for instrumentation
- Configurable event filters and analytics
- Shared team visibility across agent runs
- Real-time observation of agent execution
- Configurable data retention by plan
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| What makes it different | - Self-host free forever under Apache 2.0 with unlimited usage and no per-trace fees
- OpenTelemetry-native traces exportable to Grafana, Datadog, or any OTLP backend
- Zero-code instrumentation with eBPF controller, native SDKs, or GPU collector
- Unified platform for traces, evals, guardrails, and prompts on the same production data
- Full data ownership and no vendor lock-in with exportable OpenTelemetry traces
| - Purpose-built for Elixir and BEAM applications
- Unified view of model and tool calls with context
- Minimal setup with one dependency and endpoint configuration
- Alerting built on existing tracing and monitoring data
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 63 ▼ −2 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 23 | 2 |
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| Citation Flow (Majestic) | 39 | 8 |
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| Referring domains (Majestic) | 483 | 35 |
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