New20 min read
Claude API OpenTelemetry Tracing: How to Set It Up (Beta)
The Claude API exports OpenTelemetry traces in beta. Set up SDK spans in TypeScript or Python, add a Console destination for API spans, and count tokens once.
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OPENTELEMETRY
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Who Bought Your LLM Observability Tool? The 2025-2026 Consolidation, and How to Stay Portable
Langfuse is part of ClickHouse, Promptfoo is part of OpenAI, Galileo is part of Cisco, Traceloop is joining ServiceNow, Helicone joined Mintlify and Humanloop shut down. Who owns what in October 2026, the dates the vendors state, and a portability checklist built on OTLP ingest, licenses and self-hosting.
•11 min read
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Langfuse vs Braintrust vs Helicone: Agent Tracing Tools in 2026
Langfuse vs Braintrust vs Helicone, plus LangSmith and Arize Phoenix: 2026 pricing tiers, self-host options, agent-trace features, and OpenTelemetry support.
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13 min read
The $400 Overnight Bill: Why Managed Agents Need FinOps Now
Five managed-agent providers, five pricing models, zero unified cost attribution. If you're running agents overnight, you need FinOps you don't have yet.
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9 min read
Local OpenTelemetry Traces Are Agent Receipts
Local OpenTelemetry traces for AI agents: use OTLP and Vercel AI SDK telemetry to get receipts for model calls, tool use, latency, errors and cost.
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