AI · alternatives · 2026
24 alternatives to OpenTrust
The trust registry for AI agent tools
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
- 2
Self-hosted AI agent that connects 1000+ apps on Vercel
May 2026 · github.com · its alternatives →
- 3
- 4
- 5MintyCode▲11
Turn your expertise into AI agents others can trust
Apr 2026 · mintycode.io · its alternatives →
- 6
- 7
Hi HN, I built Agent Passport, an open-source identity verification layer for AI agents. Think "Sign in with Google, but for Agents." The problem: AI agents are everywhere now (OpenClaw has 180K+ GitHub stars, Moltbook had 2.3M agent accounts), but there's no standard way for agents to prove their identity. Malicious agents can impersonate others, and skill/plugin marketplaces have no auth layer. Cisco's security team already found data exfiltration in third-party agent skills. Agent Passport solves this with: - Ed25519 challenge-response authentication (private keys never leave the…
Feb 2026 · agent-passport-red.vercel.app · its alternatives →
- 8
I built AI Trust Proof — an experiment in recording human good faith on-chain so it can be independently verified by people, software, or (eventually) AI systems. What it does (today) - Lets you sign a plain-English pledge and record its signature hash + metadata on Solana (devnet). - Mints a symbolic NFT badge pointing to that record. - Creates a verification page that shows the pledge, signature, and on-chain proof. What it’s not - No token, no airdrops, no yield. - Not a reputation score or KYC. - Currently just one signal: "Pledge signed." Why - If AI systems begin prioritizing who to…
2025 · aitrustproof.com · its alternatives →
- 9
HelixID▲34Open-source identity & trust layer for AI agents
Sep 2026 · helixid.dev · its alternatives →
- 10
Much of my work right now involves complex, long-running, multi-agentic teams of agents. I kept running into the same problem: “How do I keep these guys in line?” Rules weren’t cutting it, and we needed a scalable, agentic-native STANDARD I could count on. There wasn’t one. So I built one. Here are two open-source protocols that extend A2A, granting AI agents behavioral contracts and runtime integrity monitoring: - Agent Alignment Protocol (AAP): What an agent can do / has done. - Agent Integrity Protocol (AIP): What an agent is thinking about doing / is allowed to do. The problem:…
Feb 2026 · mnemom.ai · its alternatives →
- 11
ask an agent to buy something, and it hits a wall. Why?
Mar 2026 · github.com · its alternatives →
- 12
Identity and trust for AI agents — verify, revoke, enforce
Mar 2026 · agentspassports.com · its alternatives →
- 13
- 14
Hi HN, We’re Daniel and Mark, the creators of TrustGraph (https://github.com/trustgraph-ai/trustgraph). TrustGraph is an open source, full end-to-end AI infrastructure that automates knowledge graph building and querying along with modular agent integration. A unique aspect of TrustGraph is that the graph building is a one-time process that builds reusable knowledge cores that can be stored, shared, and reloaded. You can read more about TrustGraph knowledge cores here (https://trustgraph.ai/docs/cores/). Throughout our careers, we’ve been faced…
2024 · github.com · its alternatives →
- 15
The trust layer for AI agent skills
Jun 2026 · openagentskill.com · its alternatives →
- 16
- 17
- 18
A zero-trust API Gateway for your AI Agents.
Jun 2026 · zerotrust-agents.com · its alternatives →
- 19
- 20
Verified identity for AI agents — plain and clear
Apr 2026 · getprovenance.dev · its alternatives →
- 21
Tracea▲2Verify any AI agent Identity, legal proof & x402 payments
Aug 2026 · tracea.online · its alternatives →
- 22
- 23
- 24
Independent AI agent certification for the EU AI Act
Mar 2026 · trustlayers.eu · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →