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

MCP Certta

by codesparversion 0.1.3i★ 277iRuns on your computer
Registry nameio.github.codespar/mcp-certta

Install

Overview

Description from the maker (original English)

DEPRECATED: no live endpoint (api.certta.com.br does not resolve)

PopNx MCP’s three pillars

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

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: CERTTA_API_KEY

Install

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

Before you install

  • Basic checks: 2 of 2 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: CERTTA_API_KEY, CERTTA_API_BASE

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

You need

Which app do you use?

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": {
    "certta": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-certta"
      ],
      "env": {
        "CERTTA_API_KEY": "your-value",
        "CERTTA_API_BASE": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add certta --env CERTTA_API_KEY=your-value --env CERTTA_API_BASE=your-value -- npx -y @codespar/mcp-certta

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": {
    "certta": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-certta"
      ],
      "env": {
        "CERTTA_API_KEY": "your-value",
        "CERTTA_API_BASE": "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": {
    "certta": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-certta"
      ],
      "env": {
        "CERTTA_API_KEY": "your-value",
        "CERTTA_API_BASE": "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

  • CERTTA_API_KEY secret required env
    API key from the Certta dashboard
  • CERTTA_API_BASE env
    API base URL — defaults to Certta production. Override for sandbox.

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

Which apps can use it

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

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

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 10, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account codespar, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed 44 days ago

  • … 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 99% of the other 19098 servers in this category
  • Published to the registry more recently than 51% of the other 19098 servers in this category
  • Basic checks equal to or better than 100% of the other 19098 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 Certta safe?

It passed 2 of 2 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: CERTTA_API_KEY

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 44 days ago, and the latest version (0.1.3) reached the registry 44 days 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: World Monitor, Claude Flow, Tldraw

Alternatives

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

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 102 tools.

by koala73Widely used★ 90.4KUpdated 5 days ago

Runs in the cloud✓ worldmonitor.app

Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.4KUpdated 14 months ago

Runs on your computer

Tldraw

Draw and visually collaborate with your agents on tldraw's canvas.

by tldrawWidely used★ 51.4KUpdated 8 months ago

Runs in the cloud

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-certta

Deprecated: no live endpoint. Measured on 2026-09-27 against two public DNS resolvers (8.8.8.8 and 1.1.1.1): api.certta.com.br, the host this server calls, does not resolve in DNS. docs.certta.ai redirects to CAF's documentation (Certta is CAF's current brand), which names api.combateafraude.com/v1 (Core API, not recommended for new integrations) and api.us.prd.caf.io (Connect API); this server was not written against either and has not been checked. See also @codespar/mcp-caf. No tool in this server reaches a service. The package is deprecated on npm and stays in this repository for reference only. If you have a working endpoint, point the server at it with CERTTA_BASE_URL. To bring the package back, open an issue in mcp-dev-latam with the provider's documented base URL.

MCP server for Certta — Brazilian identity + signature platform. KYC/KYB (CPF / CNPJ via Receita Federal + SPC / Serasa), face match + liveness, OCR of RG / CNH / comprovantes, antifraud score, ICP-Brasil digital signature + GoCertta electronic signature, and orchestrated onboarding pipelines that chain KYC + biometrics + signature in one process.

Quick Start

Claude Desktop

Add to your claude_desktop_config.json:

{

"mcpServers": { "certta": { "command": "npx", "args": ["@codespar/mcp-certta"], "env": { "CERTTA_API_KEY": "your-api-key" } } } }

Cursor / VS Code

Same config in .cursor/mcp.json.

Tools (11)

KYC / KYB
ToolCertta endpointNotes
kyc_lookup_cpfPOST /v1/kyc/cpfCPF → name, DOB, regularity, restrictions, risk score
kyb_lookup_cnpjPOST /v1/kyb/cnpjCNPJ → corporate profile, QSA, CNAE, capital
Biometrics
ToolCertta endpointNotes
biometrics_face_matchPOST /v1/biometrics/face-matchSelfie vs document photo + liveness
biometrics_livenessPOST /v1/biometrics/livenessPassive liveness on a selfie
Documents + antifraud
ToolCertta endpointNotes
documents_ocrPOST /v1/documents/ocrOCR RG / CNH / CRLV / proof of residence / passport
antifraud_scorePOST /v1/antifraud/scoreComposite risk score (0..100)
Signature
ToolCertta endpointNotes
signature_icp_createPOST /v1/signature/icp/envelopesICP-Brasil digital signature envelope
signature_electronic_createPOST /v1/signature/electronic/envelopesGoCertta electronic signature envelope
signature_get_envelopeGET /v1/signature/envelopes/{envelope_id}Status + signer responses
Onboarding pipelines
ToolCertta endpointNotes
onboarding_process_createPOST /v1/onboarding/processesOrchestrate KYC + biometrics + signature in one flow
onboarding_process_getGET /v1/onboarding/processes/{process_id}Per-step verdicts

Authentication

Standard Bearer auth:

Authorization: Bearer <CERTTA_API_KEY>

Issue your API key from the Certta dashboard:

Sandbox / Testing

Sandbox endpoint: https://api-sandbox.certta.com.br. Override via CERTTA_API_BASE.

Environment Variables

VariableRequiredDescription
CERTTA_API_KEYyesAPI key from the Certta dashboard
CERTTA_API_BASEnoOverride base URL (default https://api.certta.com.br)

Certta vs Caf vs BigDataCorp

Three BR identity rails in this catalog, each with a different specialty:

ProviderStrengthBest for
[Certta](https://certta.com.br)KYC + biometrics + ICP-Brasil signatureOnboarding with signed contracts
[Caf](https://caf.io) (@codespar/mcp-caf)KYC + Trust Platform orchestrationHosted onboarding with policy rules
[BigDataCorp](https://bigdatacorp.com.br) (@codespar/mcp-bigdatacorp)Broad data enrichment + antifraudKYC + AML + credit decisioning

Enterprise

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

License

MIT