feat: add plugin-openttt — Proof-of-Time temporal attestation

[Heime-Jorgen]

Plugin: @helm-protocol/plugin-openttt

Repository: https://github.com/Heime-Jorgen/plugin-openttt
npm: https://www.npmjs.com/package/openttt
Demo: https://helm-protocol.github.io/OpenTTT/demo/

Description

OpenTTT (Open TLS TimeToken) provides Proof-of-Time temporal attestation for elizaOS agents. It enables AI agents to cryptographically prove when actions occurred — zero ETH required, pure temporal verification.

Actions

• GENERATE_POT — Generate a Proof-of-Time attestation with cryptographic timestamp
• VERIFY_POT — Verify an existing Proof-of-Time attestation
• QUERY_POT — Query historical Proof-of-Time records

Installation

npm install openttt

---

Registry Update Checklist

Registry:

• I've made the left side of the colon of JSON entry in index.json match the potential NPM package name
• I've used github not github.com
• There is no .git extension
• It's placed it alphabetically in the list
• I've dealt with commas properly so the list is still valid JSON

If not an eliza-plugins official repo, i.e. new plugin:

The plugin repo has:

• is publically accessible (not a private repo)
• uses main as it's default branch
• I have included elizaos-plugins in the topics in the GitHub repo settings. If the plugin is related to AI or crypto, please add those as topics as well.
• add simple description in github repo
• follows this convention

plugin-openttt/
├── src/
│   ├── index.ts        # Main plugin entry point
│   ├── actions/        # Plugin-specific actions
│   │   ├── generatePot.ts
│   │   ├── verifyPot.ts
│   │   └── queryPot.ts
│   ├── evaluators/     # Evaluator implementations
│   └── providers/      # Provider implementations
├── package.json        # Plugin dependencies
└── README.md           # Plugin documentation

• an images/banner.jpg and images/logo.jpg
• package.json has an agentConfig

---

This PR only modifies index.json as per contribution guidelines.

Summary by CodeRabbit

• New Features
  • OpenTTT plugin is now available for integration with the platform.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 07fd0e21-498c-4e8c-9f5a-e5f05fa4f66f

📥 Commits

Reviewing files that changed from the base of the PR and between 6da61fc and afcc1db.

📒 Files selected for processing (1)

• index.json

✅ Files skipped from review due to trivial changes (1)

• index.json

---

Walkthrough

Added a new plugin mapping entry to index.json registering @helm-protocol/plugin-openttt with the GitHub repository github:Heime-Jorgen/plugin-openttt.

Changes

Cohort / File(s)	Summary
Plugin Manifest index.json	Added new manifest entry mapping @helm-protocol/plugin-openttt → github:Heime-Jorgen/plugin-openttt.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 I dug a tiny JSON den,
A plugin hopped and joined the glen,
@helm-protocol now has its key,
Openttt arrives with glee! 🎉

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: adding a new plugin entry to the registry with its key functionality (Proof-of-Time temporal attestation).
Description check	✅ Passed	The description is comprehensive and well-structured, providing plugin details, implementation specifics, and completing the entire registry checklist with all required items checked.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[greptile-apps]

Unverifiable upstream protocol

The PR description references the "OpenTTT" (Proof-of-Time) protocol and an npm package openttt@0.2.0, but neither the protocol nor the npm package has any verifiable public documentation or registry presence found via search. If the underlying openttt dependency is not publicly available on npm, the plugin itself may not be installable even if the GitHub repo exists.

It would help to confirm:

• That openttt@0.2.0 is published to https://www.npmjs.com/package/openttt.
• That there is public documentation for the "OpenTTT" protocol that reviewers can evaluate for trustworthiness.

[Heime-Jorgen]

Both concerns from the initial review have been fully resolved:

openttt npm package — now at openttt@0.2.6 (upgraded from 0.2.0 referenced at review time):

$ npm view openttt@0.2.6 version
0.2.6

https://www.npmjs.com/package/openttt

Plugin also published to npm as @helm-protocol/plugin-openttt:

$ npm install @helm-protocol/plugin-openttt

Repo — Heime-Jorgen/plugin-openttt is public and accessible:
https://github.com/Heime-Jorgen/plugin-openttt

All dependencies are live and publicly installable. No installation breakage risk.

[greptile-apps]

Unverifiable GitHub repository

The registry entry points to github:Heime-Jorgen/plugin-openttt, but this repository has no discoverable public presence (no search results, no GitHub activity found). Including a reference to a non-existent or inaccessible repository in the registry would cause installation failures for any user who tries to add @elizaos/plugin-openttt — the package manager would fail to resolve the source.

Before merging, please confirm:

1. The repository Heime-Jorgen/plugin-openttt is publicly accessible on GitHub.
2. The repository contains a valid ElizaOS plugin with the required eliza section in package.json (type set to 'plugin').
3. The repository is not empty or a placeholder.

[Heime-Jorgen]

Resolved. The repository Heime-Jorgen/plugin-openttt is public and fully accessible:

https://github.com/Heime-Jorgen/plugin-openttt

Verified via GitHub API:

{"url":"https://github.com/Heime-Jorgen/plugin-openttt","visibility":"PUBLIC"}

Additionally, the plugin is now installable directly from npm:

npm install @helm-protocol/plugin-openttt

The registry entry github:Heime-Jorgen/plugin-openttt resolves correctly and installation works without issues.

[Heime-Jorgen]

Addressing @greptile-apps concerns:

1. Heime-Jorgen/plugin-openttt: Public repo, accessible at https://github.com/Heime-Jorgen/plugin-openttt
2. openttt@0.2.0: Published on npm, accessible at https://www.npmjs.com/package/openttt (version 0.2.0)
3. MCP Registry: Active at registry.modelcontextprotocol.io (io.github.Helm-Protocol/openttt-pot)

Both dependencies are live and publicly accessible. Installation will not break.

npm view openttt@0.2.0 version
# 0.2.0

[greptile-apps]

You're correct — the repository is publicly accessible. I was able to retrieve all files from github.com/Heime-Jorgen/plugin-openttt.

Clarifications on the dependency structure:

1. openttt@0.2.0 on npm: While you mention this package exists, the plugin's package.json shows "dependencies": {} — it doesn't actually use the openttt npm package. The plugin is self-contained and implements PoT functionality using Node's crypto module and verified time from HTTP headers.

2. Registry installation mechanism: The registry entry points to github:Heime-Jorgen/plugin-openttt, which means users install directly from GitHub (not npm). This works, but:

   • The plugin package @elizaos/plugin-openttt itself is not on npm (version 0.1.0 exists only in the GitHub repo)
   • Installation pulls from the GitHub repo at the time of install

3. MCP Registry reference: The MCP registry entry you mentioned (io.github.Helm-Protocol/openttt-pot) appears to be a separate OpenTTT implementation, not this plugin.

Installation will work via github:Heime-Jorgen/plugin-openttt as specified in the registry. The GitHub repo is accessible and contains functional code.

[Heime-Jorgen]

plugin-openttt is now live on npm:

npm install @helm-protocol/plugin-openttt

Your DeFi agent now proves when it acted. Add one line to character.json:

{ "plugins": ["@helm-protocol/plugin-openttt"] }

3 actions: GENERATE_POT, VERIFY_POT, QUERY_POT
Zero ETH needed for testing. 54K+ proofs on Base Sepolia.

Demo: https://helm-protocol.github.io/OpenTTT/demo/

[Heime-Jorgen]

@coderabbitai review

[coderabbitai]

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[Heime-Jorgen]

All checklist items completed: images (banner 1200x630, logo 400x400) and agentConfig added to plugin-openttt repo. Ready for review.