Hi there, I'm Esteban

I have ideas.I can build _

I wire AI into products people actually use: calibrated prediction engines, MCP servers, lead-gen pipelines. I came up through B2B marketing and analytics, so I build for the outcome, not the demo.

Esteban Guerra's avatar

I build AI into real products. B2B marketing and analytics background.

I build the plumbing: connecting models like Claude to live data, tools and each other so they do real work.

A prediction engine that explains its calls. An MCP server any AI can plug into. An AI studio I built top to bottom, brand to codebase.

My background is analytics and B2B marketing. I've spent years understanding how buyers think, how pipelines move, and what separates a product that converts from one that doesn't. That's my edge: what I build is meant to get used, not just demoed.

I've always had ideas. One person can now ship what used to take a team, so I ship them.

My work.

Two live products, built with AI end to end. Each has a write-up: what I built, how the pieces connect, and what broke along the way.

spctr.run
Live
AI that brings in business.
2026

My AI implementation studio. It books meetings with buyers who need what you sell, and builds custom AI fixes for the work eating your week. I built the brand, site and company top to bottom.

  • AI lead generation
  • Custom AI builds
  • AI-assisted copy
hedgepredict.co
Live
The best play on Polymarket, and why.
2026

A read-only prediction-market companion. A calibrated model makes the call, Claude explains it and grounds it in the news, and an MCP server lets any AI use the whole engine.

  • MCP server
  • Tool use
  • Calibrated model
  • Web-grounded LLM

Tools I built for my own workflow

Toolkit.

Only what I've shipped with. Hover a tool to see which project used it.

AI
  • Claude API (Opus + Sonnet)HedgePredict
  • Claude CodeSPCTR · HedgePredict · Mission Control · Taste Vault · This site
  • MCP serversHedgePredict
  • Tool useHedgePredict
  • Structured outputsHedgePredict
  • Claude web searchHedgePredict
  • TypeSafe (Jev)HedgePredict
  • Vercel AI SDKHedgePredict
Build
  • Next.jsSPCTR · HedgePredict · This site
  • ReactSPCTR · HedgePredict · This site
  • TypeScriptSPCTR · HedgePredict · This site
  • Tailwind CSSSPCTR · HedgePredict · This site
  • Three.js + WebGL shadersSPCTR · This site
  • Framer MotionThis site
  • PythonMission Control · Taste Vault
  • Vanilla JSMission Control · Taste Vault
Ship
  • VercelSPCTR · HedgePredict · This site
  • Git + GitHubSPCTR · HedgePredict · Mission Control · Taste Vault · This site
  • Env vars + secretsHedgePredict
  • Custom domains + DNSSPCTR · This site
  • Rate limitingHedgePredict
Data + APIs
  • Polymarket APIsHedgePredict
  • Zod validationHedgePredict
  • FormspreeSPCTR
  • JSON file storesMission Control · Taste Vault

Got an idea?
Let's build it.

A role, a project, or an idea you can't shake — drop me a line. I read everything, and I reply fast.

estebanjguerra@gmail.com↗