MCP Sift

Name: MCP Sift
Author: codespar

by codesparversion 0.2.0-alpha.3i★ –iRuns on your computer

Registry nameio.github.codespar/mcp-sift

Install

Overview

Description from the maker (original English)

MCP server for Sift — global ML fraud detection: real-time risk scoring, decisions, event ingestion

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 on your computer
Transport: stdio
Category: Other
You need to fill in: SIFT_API_KEY, SIFT_ACCOUNT_ID

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: SIFT_API_KEY, SIFT_ACCOUNT_ID, SIFT_BASE_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "sift": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-sift"
      ],
      "env": {
        "SIFT_API_KEY": "your-value",
        "SIFT_ACCOUNT_ID": "your-value",
        "SIFT_BASE_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add sift --env SIFT_API_KEY=your-value --env SIFT_ACCOUNT_ID=your-value --env SIFT_BASE_URL=your-value -- npx -y @codespar/mcp-sift

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "sift": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-sift"
      ],
      "env": {
        "SIFT_API_KEY": "your-value",
        "SIFT_ACCOUNT_ID": "your-value",
        "SIFT_BASE_URL": "your-value"
      }
    }
  }
}

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": {
    "sift": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-sift"
      ],
      "env": {
        "SIFT_API_KEY": "your-value",
        "SIFT_ACCOUNT_ID": "your-value",
        "SIFT_BASE_URL": "your-value"
      }
    }
  }
}

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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Values you fill in

SIFT_API_KEY secret required env
Sift API key. Used in the Events API request body ($api_key) and as the HTTP Basic auth username (empty password) for Score + Decisions APIs.
SIFT_ACCOUNT_ID required env
Sift Account ID. Required for all Decisions API v3 endpoints (path segment /v3/accounts/{account_id}/...).
SIFT_BASE_URL env
Sift API base URL. Defaults to https://api.sift.com.

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account codespar, 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32464 servers in this category
Published to the registry more recently than 14% of the other 32464 servers in this category
Basic checks equal to or better than 100% of the other 32464 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 MCP Sift 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?

You need to fill in: SIFT_API_KEY, SIFT_ACCOUNT_ID

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.0-alpha.3) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, yontu

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

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

Install

yontu

by senrecep

Türkçe yazı denetimi: TDK kuralları, yapay zekâ izleri, metin türüne göre üslup.

Runs on your computerUpdated today

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.

@codespar/mcp-sift

MCP server for Sift — global enterprise ML-based fraud detection.

Third entry in the CodeSpar fraud category after @codespar/mcp-clearsale and @codespar/mcp-konduto. Sift is the global / enterprise counterpart to the two BR-native antifraud servers.

Positioning

	ClearSale	Konduto	Sift
Geography	Brazil	Brazil	Global (US-HQ, ~30 countries)
Founded	2001	2014	2011
Strength	Chargeback history db	Behavioral device intelligence	Multi-abuse-type ML + workflow decisions
Shape	Score + manual review	API-first, tight surface	Event stream in, scores + decisions out
Scope	Order fraud	Order fraud	Payment, account, content, promotion abuse

Also distinct from @codespar/mcp-jumio, which is global KYC / identity verification — a different layer than fraud scoring.

Sift's API shape

Sift is built around three APIs that work together:

Events API (/v205/events) — you POST every interesting signal (account creation, login, order, chargeback, ...) as a $-prefixed event.
Score API (/v205/users/{user_id}/score) — you GET the latest ML score for a user, or POST to force a rescore. Scores are floats in [0, 1] per abuse type (payment_abuse, account_abuse, content_abuse, promotion_abuse).
Decisions API v3 (/v3/accounts/{account_id}/...) — workflows in the Sift console turn scores into Decisions (block_user_payment_abuse, approve_order_payment_abuse, etc). You can apply a decision directly, read the current decisions on a user/order, or fetch the status of a workflow run.

Tools (20)

Tool	Purpose
`send_event`	Send a fraud signal to Sift's Events API (POST /v205/events).
`get_user_score`	Fetch the latest Sift score(s) for a user (GET /v205/users/{user_id}/score).
`rescore_user`	Force Sift to recompute a user's score right now (POST /v205/users/{user_id}/score).
`label_user`	Label a user as fraud or not-fraud via the legacy Labels API (POST /v205/users/{user_id}/labels).
`unlabel_user`	Remove any existing label on a user (DELETE /v205/users/{user_id}/labels).
`apply_decision_to_user`	Apply a workflow Decision to a user (POST /v3/accounts/{account_id}/users/{user_id}/decisions).
`apply_decision_to_order`	Apply a workflow Decision to a specific order (POST /v3/accounts/{account_id}/users/{user_id}/orders/{order...
`get_user_decisions`	Fetch the decisions currently applied to a user (GET /v3/accounts/{account_id}/users/{user_id}/decisions).
`get_order_decisions`	Fetch the decisions currently applied to an order (GET /v3/accounts/{account_id}/orders/{order_id}/decisions).
`get_workflow_run`	Fetch the status of a Sift Workflow run (GET /v3/accounts/{account_id}/workflows/runs/{run_id}).
`send_chargeback`	Send a $chargeback event to Sift's Events API (POST /v205/events).
`send_login`	Send a $login event to Sift's Events API (POST /v205/events).
`send_logout`	Send a $logout event to Sift's Events API (POST /v205/events).
`send_content_status`	Send a $content_status event to Sift's Events API (POST /v205/events).
`link_session_to_user`	Send a $link_session_to_user event to Sift's Events API (POST /v205/events).
`send_custom_event`	Send a custom (merchant-defined) event to Sift's Events API (POST /v205/events).
`apply_decision_to_session`	Apply a workflow Decision to a session (POST /v3/accounts/{account_id}/users/{user_id}/sessions/{session_id...
`apply_decision_to_content`	Apply a workflow Decision to a content item (POST /v3/accounts/{account_id}/users/{user_id}/content/{conten...
`get_session_decisions`	Fetch the decisions currently applied to a session (GET /v3/accounts/{account_id}/users/{user_id}/sessions/...
`get_content_decisions`	Fetch the decisions currently applied to a content item (GET /v3/accounts/{account_id}/users/{user_id}/cont...

Install

npm install @codespar/mcp-sift@alpha

Environment

SIFT_API_KEY="..."         # required, secret

SIFT_ACCOUNT_ID="..." # required for all Decisions API v3 calls SIFT_BASE_URL="..." # optional; defaults to https://api.sift.com

Authentication

Events API — $api_key is injected into the JSON body. The server handles this automatically.
Score API + Decisions API v3 — HTTP Basic, API key as username, empty password. The server handles the base64 encoding.

Pass the raw key in SIFT_API_KEY.

Typical flow

Instrument your app: every signup, login, profile update, order, and chargeback becomes a send_event call with the right $type.
On high-stakes moments (checkout, withdrawal), call send_event with return_score: true to get an inline decision.
Or poll get_user_score / get_order_decisions asynchronously after a workflow run completes.
For manual review outcomes, call apply_decision_to_user or apply_decision_to_order with a Decision ID configured in the Sift console and source: "MANUAL_REVIEW".
When a chargeback is confirmed, send a $chargeback event AND either apply_decision_to_user with a Block decision or label_user with is_bad: true, abuse_type: "payment_abuse". Decisions are preferred for new integrations; Labels are kept for backward compatibility.

Alpha note

Shipped as 0.1.0-alpha.1. All endpoint paths are verified against Sift's official Ruby SDK (SiftScience/sift-ruby): rest_api_path, user_score_api_path, users_label_api_path, user_decisions_api_path, order_decisions_api_path, workflow_status_path, and the Decision ApplyTo path builder.

Scope vs. the original brief:

Shipped & verified: send_event, get_user_score, rescore_user, label_user, unlabel_user, apply_decision_to_user, apply_decision_to_order, get_user_decisions, get_order_decisions, get_workflow_run.
Dropped — not in the public SDK:
get_session_score (/v205/sessions/{session_id}/score) — no equivalent helper in the Ruby SDK; session-level scoring in Sift flows through session-level Decisions and Workflow runs, not a dedicated score endpoint.
list_workflow_runs (GET /v3/accounts/{account_id}/workflows/runs) — only GET /{run_id} is implemented in the public SDK. In practice, Sift surfaces run_ids in event responses rather than via a list endpoint.
get_psychology_score — no such endpoint in the public SDK.

The developers.sift.com reference pages gate deep-link URLs (403 on several paths), so we used the official SDK as the source of truth. Promote to 0.1.0 once a customer confirms (or denies) the dropped endpoints against the full Decisions / Score API reference in Sift's admin console.

Run

# stdio (default — for Claude Desktop, Cursor, etc)

npx @codespar/mcp-sift

HTTP (for server-to-server testing)

MCP_HTTP=true MCP_PORT=3000 npx @codespar/mcp-sift

Enterprise

Need governance, budget limits, and audit trails for agent payments? CodeSpar Enterprise adds policy engine, payment routing, and compliance templates on top of these MCP servers.

License

MIT

MCP Sift

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

yontu

README from the maker

@codespar/mcp-sift

Positioning

Sift's API shape

Tools (20)

Install

Environment

Authentication

Typical flow

Alpha note

Run

HTTP (for server-to-server testing)

Category

Enterprise

License