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AI agents trust each other because they're on the same network. That's not trust — it's hope. Codios gives every agent a cryptographic identity (Ed25519 + DID:key) and issues signed contracts between them. Agent A can only call Agent B within the scopes the contract specifies. Verified locally — zero added latency, no call home on the hot path. Free tier: up to 5 agents. SDKs for Python and TypeScript. CLI for teams that prefer the terminal.
Hey Product Hunt 👋
I built Codios after running into the same problem repeatedly: multi-agent AI systems where every agent trusts every other agent simply because they share a network. A payment agent that accepts calls from anything on port 8080 isn't secure — it's just unaware.
The core idea: every agent gets an Ed25519 keypair and a DID:key identifier. When Agent A wants to call Agent B, it presents a signed contract specifying exactly what it's allowed to do — scopes like "payment:charge:max_10000usd". Agent B verifies locally in ~10µs. No network call. No single point of failure. Already-issued contracts work even if Codios is unreachable. The name is a deliberate reference to Ripple's Codius project (2014), which was building the same trust model for smart contract hosts. AI agents are now the workload Codius was designed for.
What it ships with today:
→ Agent registry with Ed25519 keypair generation
→ Signed capability contracts with scope enforcement
→ Nonce-based replay protection
→ Immutable audit log for every enforcement decision
→ Python + TypeScript SDKs and a CLI
→ FastAPI and Express middleware (one decorator)
→ Free tier for up to 5 agents
You can check straight demo here: https://codios.midlantics.com/demo
Happy to answer anything — especially questions about the cryptographic design, how it compares to mTLS or OAuth, or where we're taking it next (cross-org delegation chains and agent economic coordination are on the roadmap).
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About Codios - AI Agent Caging Infrastructure on Product Hunt
“Signed capability contracts for AI agents”
Codios - AI Agent Caging Infrastructure was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #153 on the daily leaderboard. AI agents trust each other because they're on the same network. That's not trust — it's hope. Codios gives every agent a cryptographic identity (Ed25519 + DID:key) and issues signed contracts between them. Agent A can only call Agent B within the scopes the contract specifies. Verified locally — zero added latency, no call home on the hot path. Free tier: up to 5 agents. SDKs for Python and TypeScript. CLI for teams that prefer the terminal.
Codios - AI Agent Caging Infrastructure was featured in Developer Tools (511.7k followers), Artificial Intelligence (467.3k followers) and Security (2.6k followers) on Product Hunt. Together, these topics include over 161.3k products, making this a competitive space to launch in.
Who hunted Codios - AI Agent Caging Infrastructure?
Codios - AI Agent Caging Infrastructure was hunted by Yusuf Shayusupov. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Yusuf Shayusupov