Efe Baran Durmaz
Founder of Sardis, building the trust layer for autonomous money. Creator of OSP and OAPS, open standards for agentic primitives.
Selected work
All projects →- Sardis → Working
A policy engine that approves or denies an AI agent's payment against a signed mandate before any money moves, and proves every decision afterward.
- OAPS / AICP → Draft spec, working reference
An open protocol that records who authorized an agent action, what limits applied, and what proof exists, shared across MCP, A2A, and payment systems.
- OSP → Spec complete, SDKs working
An open protocol that lets an agent discover, provision, and pay for a service in one HTTP call, then rotate the credentials it gets back.
- FIDES → Core working, service partial
A control layer that verifies an agent's identity, capabilities, and authority before an action runs, then logs tamper evident proof of the decision.
- Agentbox → v0.1 working
Run an autonomous agent on your own machine with a phone approval gate for risky commands, instead of choosing between full trust and a separate box.
- Capsule → Core working, adapters partial
One TypeScript interface to run agent code across Docker, Cloud Run, Vercel, and Neon, where every adapter declares exactly what it supports.
- Switchboard → Working
A local daemon that gives parallel coding agents one shared, tamper evident ledger, so they stop redoing work and faking "done".
- Vela → Phase 0 working
A control plane that scores and gates whether a code change, human or agent written, can be trusted before it merges.
- Yula → Working core, hardening
A control layer that classifies every agent tool call by how reversible it is, signs the authority behind it, then blocks it, holds it for approval, or runs it, with a timeline to verify, undo, or replay.
Writing
All writing →- Agentic Commerce Is Being Born Stillborn
The hard part was never getting an agent to pay. It's making sure it was allowed to.
- The Missing Substrate for Trustworthy Agents
AI agents don't have a capability problem. They have a trust problem.