{"id":"vllm-project-semantic-router","name":"semantic-router","homepage":"https://vllm-semantic-router.com","repo_url":"https://github.com/vllm-project/semantic-router","category":"ai-ml","subcategories":[],"tags":["ai-ml","llmrouter","mixture-of-models","routing","safety","inference","vllm","golang"],"what_it_does":"Semantic Router (vLLM Semantic Router) provides a system-level routing layer for mixture-of-models by classifying or scoring incoming requests/contexts and dispatching them to appropriate models or pipelines.","use_cases":["Mixture-of-models / routing between multiple LLMs","Request classification and intent/category-based model selection","Latency/cost optimization by routing to smaller/faster models when appropriate","Safety routing (e.g., sending higher-risk prompts to stricter or specialized pipelines)","Hybrid workloads (different models for different modalities or tasks)"],"not_for":["Turnkey hosted inference with managed APIs (appears to be self-hosted/component-based)","Use cases requiring a standardized HTTP/REST public API directly from the repo (not evidenced in provided README)","Applications needing turnkey OAuth/webhook integrations out of the box"],"best_when":"You want to integrate routing logic into an LLM inference stack (notably vLLM-based) and can deploy/manage the router as part of your infrastructure.","avoid_when":"You only need a simple, hosted SaaS API with minimal deployment/ops and no integration work.","alternatives":["OpenAI/other providers with built-in routing via application logic","Custom rule-based or embedding-based router implemented in your app","Other open-source routing/gating frameworks in the LLM ecosystem (embedding router, prompt router)"],"af_score":42.2,"security_score":41.0,"reliability_score":30.0,"package_type":"skill","discovery_source":["openclaw"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-29T18:03:42.428381+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":["Go"],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"README excerpt does not describe any public API authentication. It includes a curl|bash install script and a playground with example username/password for the hosted playground, but no production auth scheme is specified."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"No pricing details provided in the README excerpt."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":42.2,"security_score":41.0,"reliability_score":30.0,"mcp_server_quality":0.0,"documentation_accuracy":65.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":70.0,"rate_limit_clarity":0.0,"tls_enforcement":50.0,"auth_strength":30.0,"scope_granularity":20.0,"dependency_hygiene":50.0,"secret_handling":60.0,"security_notes":"No explicit statements in the provided README about TLS requirements, auth mechanisms/scopes, rate limiting, or secret handling practices for APIs. The project targets security goals (jailbreak/PII/hallucination), but this does not confirm the strength of implemented transport/auth controls in the excerpt. The presence of a default playground username/password in docs is a security risk if treated as real credentials.","uptime_documented":0.0,"version_stability":55.0,"breaking_changes_history":30.0,"error_recovery":35.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["No explicit, machine-consumable API contract (REST/OpenAPI/SDK) is shown in the provided content; agent integration likely depends on internal libraries and your own wiring into vLLM.","Playground credentials are shown for the hosted demo; do not assume these are production credentials or that the same auth applies to deployment."]}}