klanex
Reliability layer for AI agent tool calls
klanex launched on August 12, 2026 with 4 votes, #2,153 of 23,274 launches that month and more than 75% of that year's launches.
What it does
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.
klanex sits between your LLM agents and production APIs. Schema-gated intents, retries with backoff, human approvals, encrypted credentials, replay, and a full audit trail — so a hallucinated key or a rate limit never crashes your workflow.
The asynchronous execution layer between LLM agents and production APIs. Fire a tool-use intent, get an execution ID in milliseconds — klanex owns the retries, backoff, approvals, credentials, and audit trail, so a hallucinated JSON key or a rate limit never crashes your workflow. Grab a free sandbox key with one command — no account, no card — and wire klanex into your agent as MCP tools. Works in Claude Code, Cursor, VS Code, and Windsurf. Sandbox keys are disposable (Stripe test mode, auto-expire after 7 days). Want the full walkthrough, including how to make the retries fire? Open the sandbox guide → One invented JSON key and your five-step workflow dies at step three — with the API's…from klanexai.com
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