klanex

LLM agents are good at deciding which tool to call and bad at handling it when the call fails. klanex sits between your agent and the real API. It validates payloads against your JSON Schema, absorbs 429s and outages with retries, backoff and circuit breakers, keeps credentials KMS-sealed, and reports back over a signed webhook with a full audit trail. Failures return an llm_hint your agent can paste straight into its context and self-correct from. Free sandbox key, no signup, no card.