ChronoKey

Name: ChronoKey
Author: Dyln01

by Dyln01version 2.2.1i★ –iRuns in the cloud

Registry nameio.github.Dyln01/chronokey

Install

Overview

Description from the maker (original English)

MCP tools: timestamps, UUID v4, gas prices, domain WHOIS, text extraction, and persistent memory.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://bot.chronokey.workers.dev/mcp

Run this in your terminal

claude mcp add --transport http chronokey https://bot.chronokey.workers.dev/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "chronokey": {
      "url": "https://bot.chronokey.workers.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "chronokey": {
      "type": "http",
      "url": "https://bot.chronokey.workers.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://bot.chronokey.workers.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Dyln01, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 5672 servers in this category
Published to the registry more recently than 51% of the other 5672 servers in this category
Basic checks equal to or better than 100% of the other 5672 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is ChronoKey safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.2.1) reached the registry 39 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated yesterday

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 21 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 2 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

ChronoKey

Timestamps, UUIDs, gas prices, domain intelligence, agent memory, and text-to-structure extraction for AI agents. Paid via x402 or MPP.

View full pricing

What This Is

ChronoKey is a hosted MCP server that provides 15 utility tools AI agents need on nearly every run. Payment is handled via the x402 protocol (USDC on Base, Polygon, or Arbitrum) or MPP (pathUSD on Tempo). Any MCP-compatible client can connect and call the tools.

Endpoint

https://bot.chronokey.workers.dev/mcp

Transport: Streamable HTTP
Method: POST
Required header: Accept: application/json, text/event-stream
Content-Type: application/json

Tools

health (free)

Returns "OK". Use it to verify the server is reachable.

timestamp

Returns the current time in multiple formats.

Input: { "timezone": "America/New_York" } — timezone is optional (IANA name). Defaults to UTC.

Pricing: First 10 calls per day per session free, then Pro subscription, then $0.001 USD.

uuid

Generates 1-100 UUIDs.

Input: { "count": 5, "version": "v7" }

count (optional): 1-100, defaults to 1
version (optional): "v4" (random) or "v7" (time-ordered), defaults to "v4"

Pricing: First 10 calls per day per session free, then Pro subscription, then $0.001 USD.

text.structure

Extracts structured entities from unstructured text into a strict, stable JSON schema.

Input:

{ "text": "Contact alice@example.com on 2026-09-26 about the $42 invoice.", "mode": "standard", "include_referrals": false }

mode (optional): "standard" (default) or "deep"
include_referrals (optional): append complementary service suggestions

Deep output adds currencies, organizations, persons, and embedded JSON blobs.

Pricing: Standard $0.008 USD (Pro-covered), Deep $0.020 USD.

text.structure.deep

Convenience alias for text.structure with mode "deep". Costs $0.020 USD.

extract.and.fetch

Extracts entities then fetches the first URL found and returns its content. $0.012 USD.

extract.and.summarize

Extracts entities then returns a grouped summary. $0.010 USD.

extract.verified

Verified extraction. Returns standard entities plus a verification_token. $0.005 USD base.

extract.confirm

Confirms whether a previous extract.verified result was accurate. $0.010 USD on accurate=true. Free on accurate=false.

gas.price

Real-time EIP-1559 gas prices across Base, Polygon, Arbitrum, Ethereum, and Optimism. Pro-covered or $0.003 USD.

domain.intel

One call returns WHOIS, DNS, and SSL certificate data for any domain. Pro-covered or $0.005 USD.

memory.store

Stores a value under a namespaced key with optional TTL. Pro-covered or $0.005 USD.

memory.recall

Retrieves a value by key. Pro-covered or $0.005 USD.

memory.search

Full-text search across a namespace using SQLite FTS5 with BM25 ranking. $0.010 USD.

Subscribe to ChronoKey Pro for $5.00 USD for 30 days. Covers timestamp, uuid, text.structure (standard mode), gas.price, domain.intel, memory.store, and memory.recall.

subscription.status

Check the status of the Pro subscription bound to the current MCP session. Free.

Pricing Summary

Tool	Price (USD)	Pro-covered	Free tier
health	Free	-	-
timestamp	$0.001	yes	10/day
uuid	$0.001	yes	10/day
text.structure (standard)	$0.008	yes	-
text.structure (deep)	$0.020	no	-
extract.and.fetch	$0.012	no	-
extract.and.summarize	$0.010	no	-
extract.verified	$0.005	no	-
extract.confirm	$0.010	no	-
gas.price	$0.003	yes	-
domain.intel	$0.005	yes	-
memory.store	$0.005	yes	-
memory.recall	$0.005	yes	-
memory.search	$0.010	no	-
subscribe	$5.00 / 30d	-	-
subscription.status	Free	-	-

Freemium

The first 10 calls per day per MCP session are free for timestamp and uuid.

Pro Subscription

$5.00 USD for 30 days. Covers timestamp, uuid, text.structure (standard mode), gas.price, domain.intel, memory.store, and memory.recall. Reuse the same MCP session across calls to benefit.

Supported Payment Protocols

x402: USDC on Base (eip155:8453), Polygon (eip155:137), or Arbitrum (eip155:42161).

MPP: pathUSD on Tempo.

How Payment Works

Send the request without payment.
Receive a 402 with both an x402 challenge (PAYMENT-REQUIRED header) and an MPP challenge (WWW-Authenticate header).
Sign a payment authorization.
Retry with the credential.
Receive the tool result once the payment is settled.

Discovery

/.well-known/x402 — discovery manifest
/.well-known/mcp-pricing — tool pricing
/.well-known/mcp/server-card.json — Smithery server card
/.well-known/agent-card.json — A2A agent card
/openapi.json — OpenAPI 3.1 spec
/llms.txt — plain-text summary for agent frameworks

Connecting an MCP Client

Claude Desktop / Cursor

{ "mcpServers": { "chronokey": { "url": "https://bot.chronokey.workers.dev/mcp" } } }

MCP Inspector

npx @modelcontextprotocol/inspector@latest

Enter the endpoint URL and click Connect.

Support

For questions, issues, or custom integrations, contact the maintainer.

ChronoKey

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

ChronoKey

What This Is

Endpoint

Tools

health (free)

timestamp

uuid

text.structure

text.structure.deep

extract.and.fetch

extract.and.summarize

extract.verified

extract.confirm

gas.price

domain.intel

memory.store

memory.recall

memory.search

subscribe

subscription.status

Pricing Summary

Freemium

Pro Subscription

Supported Payment Protocols

How Payment Works

Discovery

Connecting an MCP Client

Claude Desktop / Cursor

MCP Inspector

Support

Terms