OKSign MCP by usefulapi MCP Server

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answering

OKSign MCP by usefulapi is answering right now. Last checked 6 min ago. It exposes 14 tools. Last commit 1 Nov 2026.

Read documents, signatures, contacts and credits; manage contacts and remove documents.

Uptime history 4 days of history

4 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

173 ms

Response time

average over 24h

Stars

last commit 1 Nov 2026

What changed 8

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 29 October 2026. No other catalogue keeps this.

31 Oct a tool changed version4 times that day

30 Oct a tool changed version2 times that day

29 Oct a tool changed version2 times that day

and 5 more, back to 29 October 2026

Nothing serious here today

Today is the operative word: we check OKSign MCP by usefulapi every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://oksign.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.oksign]
url = "https://oksign.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "oksign": {
      "url": "https://oksign.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "oksign": {
      "type": "http",
      "url": "https://oksign.usefulapi.io/mcp"
    }
  }
}

Available tools 14

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

oksign

oksign_document_exists

Whether a (signed) document still exists on the platform; returns its filename and whether it is a template. GET /v1/document/exists.

oksign_get_credits

The account's remaining credits (quantity), when they expire (validuntil), the plan (subscription), whether it is paid, and storage used (account_size) versus the maximum (max_account_size) in bytes. GET /v1/credits/retrieve.

oksign_get_document_metadata

Metadata of a signed document (pass the signed_docid): filename, size, signatures required/valid, who signed, and the values of all completed fields (can contain personal data). Metadata v2. GET /v2/metadata/retrieve.

oksign_get_form_descriptor

The form descriptor of an uploaded document: its signature and form fields (type, page, position, signer, required, signing options) and the signing URL of each signer. The URLs let their holders sign, so share them only with the signer. GET /v1/formdesc/retrieve.

oksign_get_linked_document

Given a source_docid, the signed_docid of its signed copy (absent if not signed yet) and the timestamp; given a signed_docid, the source_docid. An empty result means the document never existed here or was removed. GET /v1/linkedlist/retrieve.

oksign_list_active_documents

Documents in the account's Active Documents tab: docid, filename, creator, createdate, signatures required/valid, orgtoken, status (1 active, 10 briefcase, 11 document in a briefcase, 12 reusable, 14 template), viaapi and signed_docid when signed. OKsign allows this call only once every 3 minutes (429 otherwise). GET /v1/documents/active.

oksign_list_contacts

The account's contact list: name, email, mobile, actingas (capacity) and group. GET /v1/contacts/retrieve.

oksign_list_email_templates

The email templates defined in the account: id, name, subject, HTML body, reminder_days and repeat. GET /v1/email-templates/retrieve.

oksign_list_notification_errors

Email and SMS delivery problems (hard_bounce, soft_bounce, blocked, spam, invalid_email, deferred) for signing invitations sent between two moments: recipient, source_docid, reason, orgtoken and timestamp. Only error events are reported. OKsign allows this call only once every 3 minutes (429 otherwise). GET /v1/webhooks/retrieve.

oksign_list_signed_documents

Documents uploaded through the API that were signed between two moments: signed_docid, source_docid, filename, signerid, signing source, signature counts, completed fields, credits per signer and timestamp. Keep the window short; OKsign allows this call only once every 3 minutes (429 otherwise). GET /v1/documents/signed.

oksign_list_users

The users of the OKsign account: name, email, mobile, role, status, language and the immutable signerid (use it to tell who signed). GET /v1/users/retrieve.

oksign_remove_contacts

WRITE: permanently remove contacts from the account's contact list. A contact is identified by its email AND name. Cannot be undone (re-add with oksign_upsert_contacts). POST /v1/contacts/remove.

oksign_remove_document

WRITE: permanently remove a (signed) document from the OKsign platform. This deletes the file and its pending webhook events and cannot be undone. A signed document removed right after its callback may answer 'Too soon': retry later. DELETE /v1/document/remove.

oksign_upsert_contacts

WRITE: add contacts to the account's contact list, or update them when a contact with the same email AND name exists (its other fields are replaced). Existing contacts are never cleared. Contacts OKsign rejects are skipped and reported. POST /v1/contacts/upload.

Endpoints

URL	Transport	State	Latency	Checked
https://oksign.usefulapi.io/mcp	streamable-http	answering	142 ms	6 min ago

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OKSign MCP by usefulapi — questions

Answers built from our own checks of this server.

What can OKSign MCP by usefulapi do?

It exposes 14 tools, read directly from the server on our last check. Among them: oksign_document_exists, oksign_get_credits, oksign_get_document_metadata, oksign_get_form_descriptor, oksign_get_linked_document, oksign_list_active_documents and 8 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is OKSign MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 173 ms. The bar chart above shows every period we have measured.

How do I connect OKSign MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does OKSign MCP by usefulapi need an API key?

No. OKSign MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 14 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is OKSign MCP by usefulapi?

It answers our handshake in 173 ms on average, which is faster than 78% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is OKSign MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at oksign.usefulapi.io, which runs on its operator's own terms.