Quipu MCP by usefulapi
REMOTE · QUIPU.USEFULAPI.IO
Read contacts, invoices and book entries; create contacts and draft invoices in Quipu.
Available components
Last scanned (2 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Nov 26 −45
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Stability: 0.03 → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 1 Nov 26 +1
- Stability: unverified → 0.03 ▲ functional
- 31 Oct 26 62
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://quipu.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of quipu.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 302 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://quipu.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/quipu/ |
| http (plaintext) | http://quipu.usefulapi.io/mcp | Inconclusive | 302 | http://quipu.usefulapi.io/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
quipu_create_contact ~140
Create a contact (client or supplier). WRITE: it adds a record to the Quipu account. A tax id is needed before you invoice the contact.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | – |
| bank_account_number | string | – | – |
| client_number | string | – | – |
| country_code | string | yes | Two-letter country code, for example ES. |
| document_type | string | – | – |
| string | – | – | |
| name | string | yes | – |
| phone | string | – | – |
| tax_id | string | – | NIF/CIF/tax id. |
| town | string | – | – |
| zip_code | string | – | – |
No output schema declared.
No examples provided.
quipu_create_draft_invoice ~150
Create a DRAFT income invoice for a contact. WRITE: it adds a draft to Quipu. It sends no issue date or number, so Quipu does not issue or register the invoice; finalize it in the Quipu app.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string|number | yes | Id of the client contact. |
| items | array | yes | Invoice lines. |
| notes | string | – | – |
| numbering_series_id | string|number | – | Numbering series id (see quipu_list_numbering_series). |
| operation_date | string | – | Date of the delivery or service. |
| payment_method | string | – | For example bank_transfer, cash, card. |
| tags | string | – | – |
No output schema declared.
No examples provided.
quipu_get_contact ~43
Get one contact by id, with its totals of paid and unpaid incomes and expenses.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string|number | yes | Quipu resource id (integer). |
No output schema declared.
No examples provided.
quipu_get_invoice ~70
Get one invoice by id. Income invoices include download_pdf_url and ephemeral_open_download_pdf_url (a temporary PDF link).
| Name | Type | Req | Description |
|---|---|---|---|
| include | string | – | Comma-separated related resources to include (for example contact,items). |
| invoice_id | string|number | yes | Quipu resource id (integer). |
No output schema declared.
No examples provided.
quipu_list_accounting_categories ~86
List accounting categories (chart of accounts groups). Filter by kind, prefix or active state.
| Name | Type | Req | Description |
|---|---|---|---|
| active | boolean | – | – |
| kind | string | – | – |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
| prefix | string | – | – |
No output schema declared.
No examples provided.
quipu_list_accounting_subcategories ~76
List accounting subcategories, optionally for one accounting category.
| Name | Type | Req | Description |
|---|---|---|---|
| accounting_category_id | string|number | – | Quipu resource id (integer). |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
No output schema declared.
No examples provided.
quipu_list_book_entries ~242
List all book entries (invoices, tickets and other accounting entries) in one list. Filter by type, kind, period, dates, payment status or contact.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string|number | – | Quipu resource id (integer). |
| include | string | – | Comma-separated related resources to include (for example contact,items). |
| kind | string | – | income = issued invoices, expenses = received invoices. |
| operation_date | string | – | Year, quarter, month or all. Works with kind=income. |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
| payment_status | string | – | Payment status. unpaid includes pending and overdue. |
| period | string | – | Period such as "2024Q1" or "2024-01". |
| q | string | – | Free-text search. |
| sort | string | – | – |
| type | string | – | Entry type filter. |
| validation_status | string | – | – |
| with_detailed_amounts | boolean | – | Add detailed amounts to each entry. |
No output schema declared.
No examples provided.
quipu_list_contacts ~154
List contacts (clients and suppliers) of the Quipu account. Filter by kind, tax id, country, email or free text.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Two-letter country code, for example ES. |
| string | – | – | |
| kind | string | – | Only clients or only suppliers. |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
| q | string | – | Free-text search (name, tax id, email). |
| sort | string | – | Sort field; prefix with - for descending. |
| tax_id | string | – | Exact NIF/CIF/tax id. |
No output schema declared.
No examples provided.
quipu_list_invoices ~265
List invoices (issued and received). Filter by kind, period, operation date, payment status or contact. Totals and PDF links are in the attributes.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string|number | – | Only invoices of this contact. |
| include | string | – | Comma-separated related resources to include (for example contact,items). |
| kind | string | – | income = issued invoices, expenses = received invoices. |
| operation_date | string | – | Year (2024), quarter (2024-Q1), month (2024-3) or all. Works with kind=income. |
| operation_date_from | string | – | Start of an explicit range; send with operation_date_to. Works with kind=income. |
| operation_date_to | string | – | End of an explicit range; send with operation_date_from. |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
| payment_status | string | – | Payment status. unpaid includes pending and overdue. |
| period | string | – | Period such as "2024Q1" or "2024-01". |
| q | string | – | Free-text search. |
| validation_status | string | – | – |
No output schema declared.
No examples provided.
quipu_list_numbering_series ~98
List invoice numbering series (prefixes). Use a series id when you create a draft invoice.
| Name | Type | Req | Description |
|---|---|---|---|
| amending | boolean | – | Only series for amending (credit) invoices. |
| applicable_to | string | – | – |
| page | integer | – | Page number (1-based, default 1). |
| page_size | integer | – | Results per page (1-100, default 25). |
| prefix | string | – | – |
No output schema declared.
No examples provided.
quipu_update_contact ~130
Update fields of one contact. WRITE: it changes the record; only the fields you send change.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | – |
| bank_account_number | string | – | – |
| client_number | string | – | – |
| contact_id | string|number | yes | Quipu resource id (integer). |
| country_code | string | – | – |
| document_type | string | – | – |
| string | – | – | |
| name | string | – | – |
| phone | string | – | – |
| tax_id | string | – | – |
| town | string | – | – |
| zip_code | string | – | – |
No output schema declared.
No examples provided.
How do I install the Quipu MCP by usefulapi server?
Quipu MCP by usefulapi is a hosted endpoint at https://quipu.usefulapi.io/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · quipu.usefulapi.io
claude mcp add --transport http io-usefulapi-quipu 'https://quipu.usefulapi.io/mcp'
What is the Quipu MCP by usefulapi server?
Quipu MCP by usefulapi is listed in the public MCP registry as io.usefulapi/quipu. Read contacts, invoices and book entries; create contacts and draft invoices in Quipu. This page covers its hosted endpoint (https://quipu.usefulapi.io/mcp).
Is the Quipu MCP by usefulapi server safe to use?
Quipu MCP by usefulapi scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Quipu MCP by usefulapi server expose?
Quipu MCP by usefulapi exposes 11 tools: quipu_list_contacts, quipu_get_contact, quipu_list_invoices, quipu_get_invoice, quipu_list_book_entries, and 6 more. Their descriptions and schemas cost roughly 1,454 tokens of context every time the server is loaded.
Does the Quipu MCP by usefulapi server require authentication?
Its publisher declares no required credentials for Quipu MCP by usefulapi. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the Quipu MCP by usefulapi server still maintained?
Quipu MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.