MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · File & docs

ZapAssina MCP by usefulapi

By usefulapi.io Verified namespace

Send documents for e-signature, track signers, and organize folders in ZapAssina.

WebsiteSource code
Connect to ZapAssina MCP by usefulapi
Checks passed
13 / 22

1 failed · 8 not measured

Median response
53 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
15

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 53 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name zapassina-mcp.

  • Pass
    Lists tools

    tools/list returned 15 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 53 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 53 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    50 of 71 parameters have a description (70%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T23:35:25.224219Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using ZapAssina MCP by usefulapi

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http zapassina-mcp-by-usefulapi https://zapassina.usefulapi.io/mcp

Capabilities

Tools 15

zapassina_add_signer

Add a signer to a document that is already sent. The signer joins at the end of the order and gets the invitation at once (or when their turn comes). This sends a real message. ZapAssina API: POST /docs/{token}/add-signer/.

Discovered
zapassina_cancel_document

Cancel a document. Signing links stop working at once. This cannot be undone through the API. ZapAssina API: DELETE /docs/{token}/.

Discovered
zapassina_create_document

Send a ready PDF for signature. Give exactly one of base64_pdf or url_pdf (PDF up to 25 MB). Set send_automatic_email only when the user asked to send the invitations now. Signature positions: anchors <<signer1>>, <<signer2>> and <<rubrica1>> in the PDF text. ZapAssina API: POST /docs/.

Discovered
zapassina_create_document_from_template

Create a signing document from a template. Fill the template fields with data (de = field name, para = value). Set send_automatic_email only when the user asked to send the invitation now. Plan quota applies. ZapAssina API: POST /models/create-doc/.

Discovered
zapassina_create_folder

Create a document folder. Missing parent levels are created too (up to 5 levels). ZapAssina API: POST /folders/.

Discovered
zapassina_get_document

Show one document: status, signers with their status and signing links, answers, and file links. Returns the ZapAssina JSON. File links in the result expire after 60 minutes. ZapAssina API: GET /docs/{token}/.

Discovered
zapassina_get_template

Show one template: its fields (inputs), signers, public link and extra documents. Use the fields before creating a document from it. ZapAssina API: GET /templates/{token}/.

Discovered
zapassina_list_documents

List documents, newest first. Filters combine. Returns the ZapAssina JSON. File links in the result expire after 60 minutes. ZapAssina API: GET /docs/.

Discovered
zapassina_list_folders

List the document folders with their document counts. ZapAssina API: GET /folders/.

Discovered
zapassina_list_templates

List the organization's document templates (Word models with {{fields}}). Returns the ZapAssina JSON. File links in the result expire after 60 minutes. ZapAssina API: GET /templates/.

Discovered
zapassina_move_document

Move a document to a folder. Missing folders are created. Use / to remove it from all folders. ZapAssina API: POST /docs/{token}/folder/.

Discovered
zapassina_remove_signer

Remove a signer who has not signed yet. Their signing link stops working. If the others already signed, the document completes. ZapAssina API: DELETE /signers/{token}/.

Discovered
zapassina_resend_invitation

Send the signing invitation again to pending signers who can sign now. Pass signer_token to send to one signer only. This sends a real message to the signer. ZapAssina API: POST /docs/{token}/resend/.

Discovered
zapassina_set_document_deadline

Set a new deadline to sign, or clear it (clear_deadline true). A new deadline reopens an expired document. ZapAssina API: POST /docs/{token}/deadline/.

Discovered
zapassina_update_signer

Correct a signer who has not signed yet. Omitted fields stay as they are. A new email or phone gives a new signing link. Set resend_invite only when the user asked to send the invitation again. ZapAssina API: POST /signers/{token}/.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected53 ms15

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

Explore alternatives to ZapAssina MCP by usefulapi