io.usefulapi由 usefulapi.io 发布官方发布者v1.9.4更新于 Nov 7, 2026
Read documents, signatures, contacts and credits; manage contacts and remove documents.
发布方自己的服务：Ably MCP by usefulapi
将助手连接到 OKSign 电子签名账户，读取文档、签署人、联系人和额度，并可管理联系人与文档。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/io.usefulapi%2Foksign/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"oksign-by-usefulapi": {
"type": "http",
"url": "https://oksign.usefulapi.io/mcp"
}
}
}Connect at https://oksign.usefulapi.io/mcp.
https://oksign.usefulapi.io/mcp.claude mcp add --transport http oksign https://oksign.usefulapi.io/mcp, then run /mcp to log in.Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your OKSign credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/oksign/
Connect your OKSign credentials to access your account through usefulapi.
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
Pro covers this server only. Subscribe with oksign_upgrade (it returns a Stripe Checkout link). Cancel any time with oksign_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running oksign_upgrade before then undoes the cancel. Or write to [email protected].
来源：servers/oksign/README.md，提交 4046075
Get credits and storage
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.
无需输入参数。
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.
limitoffsetList email templates
The email templates defined in the account: id, name, subject, HTML body, reminder_days and repeat. GET /v1/email-templates/retrieve.
limitoffsetList contacts
The account's contact list: name, email, mobile, actingas (capacity) and group. GET /v1/contacts/retrieve.
limitoffsetList 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.
limitoffsetsignedorgtokenfilename_containsList 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.
end必填limitstart必填offsetList email and SMS delivery 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.
end必填limitstart必填offsetCheck a document exists
Whether a (signed) document still exists on the platform; returns its filename and whether it is a template. GET /v1/document/exists.
docid必填Get signed 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.
signed_docid必填Get a document's 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.
docid必填Find the source or signed copy of a 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.
docid必填Add or update 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.
contacts必填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.
contacts必填Remove a 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.
docid必填已满足适用检查项的 100%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
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{ "mcpServers": { "oksign": { "url": "https://oksign.usefulapi.io/mcp" } }}