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PopNx MCPMCP servers for people who use AI · explained in plain words

Compass by 402rates

by 402rates.comversion 0.2.1i★ –iRuns in the cloud
Registry namecom.402rates/compass

How to install

What it does

Free agent tests (no account or payment); paid ping.

  • Connects Runs in the cloud
  • Account or key No key needed
  • Category Online shops & payments

Install

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

Passed 2/3 checks · What you ask goes through the maker’s server (api.402rates.com)

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1+ Add2https://…3Add4
  2. Click “+ Add” → “Add custom connector” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · Name

    Checking the commands · copy buttons appear once they pass

    Remote MCP server URL · Address

    Checking the commands · copy buttons appear once they pass

    Leave Authentication as Claude detected it, then click Add

  3. Turn it on in a chat

    +ConnectorsCompass by 402rates

  4. Try it

    Use Compass by 402rates and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Compass by 402rates or shows a Compass by 402rates tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4
  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · Name

    Checking the commands · copy buttons appear once they pass

    Connection · Address

    Checking the commands · copy buttons appear once they pass

  3. Pick Compass by 402rates in a chat

    Start a new chat and pick Compass by 402rates from your plugins before typing

  4. Try it

    Use Compass by 402rates and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using Compass by 402rates or shows a Compass by 402rates tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    Checking the commands · copy buttons appear once they pass

  3. Type /mcp in Claude Code

    You should see Compass by 402rates listed as connected

  4. Try it

    Use Compass by 402rates and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Compass by 402rates or shows a Compass by 402rates tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Checking the commands · copy buttons appear once they pass

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use Compass by 402rates and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Compass by 402rates or shows a Compass by 402rates tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Checking the commands · copy buttons appear once they pass

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use Compass by 402rates and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Compass by 402rates or shows a Compass by 402rates tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Address

Checking the commands · copy buttons appear once they pass

JSON settings are under “For developers” below

Stuck? Ask people who use Compass by 402rates💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

Checking the commands · copy buttons appear once they pass

Cursor (~/.cursor/mcp.json)

Checking the commands · copy buttons appear once they pass

VS Code (mcp.json)

Checking the commands · copy buttons appear once they pass

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

At a glance

Downloads per weeki
Not on npm/PyPI
Verified domain
✓ 402rates.com
Licencei
No licence stated
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
0.2.1
Published to registryi
Sep 24, 2026
Code last changedi
–
Maker
402rates.com
Repo
–
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

  • list_agent_test_cases

    Free catalogue of versioned synthetic cases: unavailable confirmation, retry credits and attempt limits, and partial results with continuation. No run, wallet or payment.

  • describe_agent_test

    Free description of a versioned synthetic task, its limits and coverage. Optional case selection; omitted selection describes the original confirmation case. No run, payment or wallet.

  • start_agent_test

    Create a free bounded synthetic run without an account. An optional finalized previous run and its token link a repeat of the same case version and scenario. No real purchase. Caller model costs remain external.

  • execute_test_action

    Execute the selected case's action: synthetic order, retry attempt, page retrieval or result submission. Identical keys and input replay the stored outcome. Calls, effects and simulated credits remain observable. No real payment.

  • inspect_test_state

    Read operation records for a synthetic task. Observation timestamps and state describe the test service only. No claim about client receipt or overall agent reliability.

  • read_agent_test_report

    Read calls, timestamps, operations and resulting state. Optional finalization freezes the run. A linked repeat includes the previous frozen report while retained. No score, certification or judgment of the agent.

  • decode_payment_attribution

    Free local decoding of an ERC-8021 schema-2 x402 builder-code suffix from supplied calldata. Separates application, facilitator, services and facilitator-reported metadata. No transaction lookup, receipt confirmation, identity verification or payment. Malformed and unsupported su

  • compare_payment_terms

    Free comparison of two unsigned captures for the same resource and method. Default analysis version 1 retains Exact EVM; version 2 compares documented Exact, Upto, Batch Settlement and Auth-Capture fields, limits and lifecycle terms. Captures are caller declarations, with no auth

  • check_payment_terms

    Free inspection of unsigned x402 terms. Default analysis version 1 retains Exact EVM checks; analysis_version 2 inspects documented EVM Exact, Upto, Batch Settlement and Auth-Capture profiles, declared limits and lifecycle fields. Unknown fields stay unchecked. No wallet, signatu

  • list_capabilities

    Free capability and MCP tool catalogue for Compass by 402rates. Contains this product and shared service information only.

  • find_x402_resource

    Searches the x402 resource catalogue and returns matching paid endpoints with their price, the chains they accept, and their 30-day usage from the catalogue's own counters: total calls, distinct paying addresses, the ratio between the two, and days since the last payment. Every f

  • get_manifest

    Free OpenAPI manifest for Compass by 402rates. Contains this product and shared service information only.

  • test_payment

    Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt ident

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 13, 2026

  • ! Caution

    Maker matches the repo

    The registry lists no source repo, so we cannot match the publisher (402rates.com) to the code

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 117 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 13 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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Posts here are written by users, not the PopNx team.

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User reviews

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Compared with others in Online shops & paymentsi

  • More stars than 0% of the other 2755 servers in this category
  • Published to the registry more recently than 35% of the other 2755 servers in this category
  • Basic checks equal to or better than 59% of the other 2755 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 Compass by 402rates safe?

It passed 2 of 3 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 (0.2.1) reached the registry 2 months 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 Business and above.

What can I use instead?

In the same category: Spree Commerce developer docs for AI agents, Stripe MCP, Sessy — Amazon SES observability

Others in the same category

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

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

Stripe MCP

Stripe’s official server lets AI view and manage customers, products, payments and invoices. Connect to Stripe’s cloud and sign in with OAuth.

by stripeWidely used★ 2.1KUpdated 13 months ago

Runs in the cloud✓ service owner · stripe.com

README from the maker

No README found in the repo