Sendero: AI Automated Corporate Travel

Sendero is a vertical AI agent that replaces the entire travel operations software stack with a single agent runtime powered by Google Gemini. The travel industry runs on six disconnected vendors: GDS, TMC, CRM, expense tools, payment rails, and human agents. A single expense report still takes hours. Sendero collapses this into one AI agent that handles the full trip lifecycle in under ninety seconds. How Gemini powers Sendero: Gemini 2.5 Flash drives sub-second OCR for passports, receipts, invoices, and boarding passes with Zod-pinned structured extraction. Gemini Flash Image generates collectible trip stamp artwork in parallel with agent workflows. Gemini Pro handles complex multi-step reasoning for policy evaluation and itinerary optimization. Enterprise-grade architecture: Multi-tenant by design with isolated workspaces, scoped API keys, and HMAC-signed requests. Durable Vercel Workflows checkpoint every booking step, surviving deploys and resuming days later. Column-level encryption protects traveler PII. Langfuse and Arize Phoenix provide LLM-as-Judge evaluation and full agent observability. Four channels, one runtime: Travelers interact via WhatsApp. Operators manage via Slack. Finance reviews on the web dashboard with Liveblocks collaboration. Other AI agents call Sendero through MCP, OpenAPI, and llms.txt, paying per-call via x402 nanopayments. 128 production tools spanning flights, hotels, ground transport, visa eligibility, eSIM provisioning, FX quotes, document scanning, and settlement. Real supplier integrations via Duffel across 500+ airlines. Won Best Google Gemini Implementation at the Arc Hackathon. Google invited us to TechEx on that win. Built on Y Combinator’s thesis that vertical AI agents replace SaaS. Harvey did it for legal. Sierra for customer service. Travel ops is the open seat.