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ZERNO Lite MCP Server

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ZERNO Lite — MCP Server

Official metadata for the ZERNO Lite Model Context Protocol (MCP) server.

ZERNO Lite is a remote MCP server that connects AI agents to ZERNO project context — project briefs, task and agent context, and structured intake workflows — over a secure, OAuth-authorized endpoint. It's built for coding agents, product agents, and automation workflows that need to understand a project before acting, without unrestricted backend access.

This repository is the public "front door" for the hosted server: metadata, server.json, and the tool catalog for MCP directories. It does not contain the backend source — the server runs as a hosted service at the endpoint below.

Endpoint

https://zerno.one/mcp

Transport

Streamable HTTP (JSON-RPC 2.0 over POST)

Auth

OAuth 2.1 with PKCE (S256); bearer tokens; per-project authorization

Registration

Dynamic Client Registration (RFC 7591) — no static API key

Capabilities

8 tools · 0 resources · 0 prompts

Registry name

one.zerno/zerno-lite

Manifest

https://zerno.one/.well-known/mcp

Related MCP server: mcp-devtools

Quickstart

Add a remote connector named zerno with URL https://zerno.one/mcp, then complete the OAuth consent in the browser.

  • Claude Code / Claude Desktop: Settings → Connectors → add custom connector (name zerno, URL above).

  • Codex CLI: codex mcp add zerno --url https://zerno.one/mcp

  • Cursor: Settings → MCP → Add server → URL https://zerno.one/mcp

For user-scoped tokens, tell the agent which project with a project_slug (e.g. zerno-one).

Tools (8)

Tool

Does

Writes?

zerno_get_project_brief

Project orientation: focus, next action, do-not-do, memory index

no

zerno_get_agent_context

Compiled project memory + recent events for an agent run

no

zerno_list_tasks

Filtered backlog listing

no

zerno_get_task

Full detail for one task

no

zerno_update_task

Patch task fields/status (ICE recomputed)

mutates

zerno_submit_task_triage

Submit triage proposals (pending human approval)

creates proposals

zerno_create_agent_intake_task

File a review task from an agent report

creates a task

zerno_capture_session_event

Append a session summary to project memory

creates memory event

Full machine-readable schemas: tools-list.json. No tool deletes data or calls third-party services. tools/list is scope-filtered — a read-only token sees only the four read tools.

Security & privacy

Every call requires OAuth; nothing is exposed unauthenticated. Bearer tokens are hashed at rest, no secrets are returned in tool output, and every call is audit-logged. Access is tied to the user's authorized ZERNO workspace/project.

Limitations

Requires a ZERNO account and an authorized project. Remote/hosted only (no stdio or packaged distribution). Tools only — no MCP resources or prompts.

Files in this repo

Links

License

MIT — applies to this metadata repository.

This server cannot be installed

A
license - permissive license
Not graded
quality - not tested
D
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

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