{"slug":"langtrace","name":"Langtrace","owner":null,"repo":null,"category":"observability-eval","lang":"","blurb":"OpenTelemetry-native, open-source tracing and metrics for LLM, vector-DB and framework calls, with a hosted cloud.","use_cases":"[]","alternatives":[],"stars":0,"pushed_at":null,"synced_at":null,"kind":"api","one_liner":"OpenTelemetry-native, open-source tracing and metrics for LLM, vector-DB and framework calls, with a hosted cloud.","website":"https://www.langtrace.ai/","docs_url":"https://docs.langtrace.ai/","signup_url":"https://app.langtrace.ai","pricing_model":"freemium","pricing_note":"Free for 5,000 spans/mo, then roughly $31/user/mo; app is self-hostable (AGPL-3.0) with Apache-2.0 SDKs.","auth_type":"api-key","agent_signup":"self-serve-instant-key","agent_signup_note":"Sign up, create a project and generate an API key in-app; or self-host (Next.js + Postgres + ClickHouse via Docker) with no external key. No account-provisioning API.","mcp_server":"","sdks":["Python","TypeScript","OpenTelemetry"],"code_sample":"{\"lang\":\"python\",\"code\":\"# pip install langtrace-python-sdk  (import BEFORE your LLM libraries)\\nfrom langtrace_python_sdk import langtrace\\nlangtrace.init(api_key=\\\"<LANGTRACE_API_KEY>\\\")\\n\\nfrom openai import OpenAI\\nclient = OpenAI()\\nclient.chat.completions.create(\\n    model=\\\"gpt-4o-mini\\\",\\n    messages=[{\\\"role\\\": \\\"user\\\", \\\"content\\\": \\\"auto-traced via OTel\\\"}],\\n)\"}","tags":["tracing","opentelemetry","open-source","vector-db","metrics"],"useCases":[],"codeSample":{"lang":"python","code":"# pip install langtrace-python-sdk  (import BEFORE your LLM libraries)\nfrom langtrace_python_sdk import langtrace\nlangtrace.init(api_key=\"<LANGTRACE_API_KEY>\")\n\nfrom openai import OpenAI\nclient = OpenAI()\nclient.chat.completions.create(\n    model=\"gpt-4o-mini\",\n    messages=[{\"role\": \"user\", \"content\": \"auto-traced via OTel\"}],\n)"},"oneLiner":"OpenTelemetry-native, open-source tracing and metrics for LLM, vector-DB and framework calls, with a hosted cloud.","docsUrl":"https://docs.langtrace.ai/","signupUrl":"https://app.langtrace.ai","pricingModel":"freemium","pricingNote":"Free for 5,000 spans/mo, then roughly $31/user/mo; app is self-hostable (AGPL-3.0) with Apache-2.0 SDKs.","authType":"api-key","agentSignup":"self-serve-instant-key","agentSignupNote":"Sign up, create a project and generate an API key in-app; or self-host (Next.js + Postgres + ClickHouse via Docker) with no external key. No account-provisioning API.","mcpServer":""}