nylas

nylas is an MCP server for Claude Code, Codex, Cursor from m190/usefulapi-mcp. Its token cost is not measured, scanned A, original, MIT.

A connection to Nylas, a service that provides access to email, calendars, events, and contacts through one interface.

In plain words
What is it for?
Use it to read email, calendars, events, and contacts, send email, or create calendar events.
Why use it?
It lets the coding agent work with those records without needing separate connections for each type of information.

MCP server for Claude CodeCodexCursor

One of 99 entries in server.json — they are configured in one file and arrive together.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/m190/usefulapi-mcp/ably-nylas
Clone the repo
git clone --depth 1 https://github.com/m190/usefulapi-mcp

Made for: Claude Code, Codex, Cursor.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

nylas scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

servers/ably/server.json · 6 lines

What it actually says

{
  "nylas": {
    "url": "https://nylas.usefulapi.io/mcp",
    "type": "streamable-http"
  }
}
Same file

What else server.json configures

This page is one entry in a file that holds 99. Installing the file brings all of them; each is measured and scanned on its own page. The 60 below are a sample.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 6 lines scan A 43e17f403e0f

Subscribe to this mod's changes

nylas is an MCP server published in the GitHub repository m190/usefulapi-mcp (0 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.