Sienge MCP by usefulapi

MCP server · hosted · v1.0.0 · io.usefulapi/sienge

Online · tested 16h agoNEW · 16h agoSeen in the registry 15h ago

Read customers, sales contracts, receivables, purchase orders and units; create customers in Sienge.

What it does

Sienge MCP by usefulapi is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

From the publisher's description, Electra Index matched it to one capability: procurement. That makes it a candidate for tasks such as manage procurement.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES

Local installNO

Live checkOnline · 17 tools

Version1.0.0

PriceNot in the registry

First seen08 Nov 2026

Last checked15h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 16h ago (live check)

Hosted endpoint

https://sienge.usefulapi.io/mcp streamable-http

In Claude Code: claude mcp add --transport http sienge-mcp-by-usefulapi https://sienge.usefulapi.io/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "sienge-mcp-by-usefulapi": {
      "url": "https://sienge.usefulapi.io/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 16h ago

ONLINE Sienge MCP by usefulapi answered an MCP connection on 08 Nov 2026 and introduced itself as sienge-mcp 1.0.0 (MCP protocol 2025-06-18).

17 tools offered to AI assistants

sienge_list_customers · List the customers of the Sienge account, ordered by id. Filter by CPF or CNPJ, enterprise, or create and change dates. GET /customers.
sienge_get_customer · Show one customer with its phones, addresses, agents, procurators, spouse and family income. GET /customers/{customerId}.
sienge_create_customer · Create a customer: a natural person (personType F, needs cpf and sex) or a legal person (personType J, needs cnpj). POST /customers. The call is never retried: check sienge_list_customers before you create the same customer again.
sienge_list_companies · List the companies (business units) of the Sienge account, ordered by id. GET /companies.
sienge_list_enterprises · List the enterprises (construction projects) of the account. Filter by company or type. GET /enterprises.
sienge_list_creditors · List the creditors (suppliers and other payees), filtered by CPF, CNPJ or name. GET /creditors.
sienge_get_creditor · Show one creditor with its contacts, phones, address, bank data and tax classification. GET /creditors/{creditorId}.
sienge_list_sales_contracts · List sales contracts, filtered by customer, company, enterprise, unit, number or dates. GET /sales-contracts.
sienge_get_sales_contract · Show one sales contract with its customers, units, payment conditions, brokers and commissions. GET /sales-contracts/{salesContractId}.
sienge_list_receivable_bills · List the receivable bills (accounts receivable titles) of one customer. GET /accounts-receivable/receivable-bills.
sienge_list_receivable_installments · List the installments (parcelas) of one receivable bill with due dates and amounts. GET /accounts-receivable/receivable-bills/{receivableBillId}/installments.
sienge_list_purchase_orders · List purchase orders by order date, status, approval, supplier or building. GET /purchase-orders.

Show 5 more

sienge_get_purchase_order · Show one purchase order: status, supplier, building, totals and payment condition. GET /purchase-orders/{purchaseOrderId}.
sienge_list_purchase_invoices · List purchase invoices (notas fiscais de compra) by issue period, company, supplier, document or number. GET /purchase-invoices.
sienge_list_units · List the real-estate units (imóveis) of the account, ordered by id descending. GET /units.
sienge_get_unit · Show one unit with its enterprise, areas, address, evaluations and groupings. GET /units/{unitId}.
sienge_list_departments · List the departments of the account, optionally filtered by name or active state. GET /departments.

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Tasks it helps with

Share of each task's required capabilities it covers

Manage procurement

Procurement

33%

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Facts & evidence

Each fact shows where it was seen and when.

Fact	Value	Evidence	Source	Last confirmed
Hosted endpoint	https://sienge.usefulapi.io/mcp	DECLARED	SRC-001 Official MCP Registry	15h ago
Local install (package)	no	DECLARED	SRC-001 Official MCP Registry	15h ago
Remote access (hosted)	yes	DECLARED	SRC-001 Official MCP Registry	15h ago
Website	https://usefulapi.io/sienge/	DECLARED	SRC-001 Official MCP Registry	15h ago
Repository	https://github.com/m190/usefulapi-mcp	DECLARED	SRC-001 Official MCP Registry	15h ago
Registry status	active	DECLARED	SRC-001 Official MCP Registry	15h ago
Version	1.0.0	DECLARED	SRC-001 Official MCP Registry	15h ago
MCP server	yes	DECLARED	SRC-001 Official MCP Registry	15h ago

Change history

NEW08 Nov 2026
first seen in the index

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Questions about Sienge MCP by usefulapi

How do I connect Sienge MCP by usefulapi?

Use the hosted endpoint https://sienge.usefulapi.io/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Sienge MCP by usefulapi offer?

When Electra Index connected on 08 Nov 2026, it listed 17 tools: sienge_list_customers, sienge_get_customer, sienge_create_customer, sienge_list_companies, sienge_list_enterprises, sienge_list_creditors, sienge_get_creditor, sienge_list_sales_contracts and more. The full list is in "Live check" above.

Is Sienge MCP by usefulapi online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 16h ago.

What can I use Sienge MCP by usefulapi for?

Based on its description, it is most relevant to: manage procurement.