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Oksign for AI agents

Oksign is an e-signature platform for sending contracts, purchase orders, and forms for legally binding signature online. Sales, HR, and operations teams use it to close paperwork without printing. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect OksignSee the 17 actions ↓
DocumentsAPI keyMCP + RESToksign.com
AUDIT LOG · OKSIGNPOLICY: acme-support
09:41:07 · claude · u_8f2read
oksign.get_active_documents
Get Active Documents✓ allowed · 212ms
09:41:09 · claude · u_8f2write
oksign.users_retrieve
Retrieve Users✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
oksign.contacts_remove
Remove Contacts✕ blocked · policy: deny
EVERY OKSIGN CALL, ON THE RECORD
01 · USE CASES

What agents do in Oksign.

01

Send a document for signature

Upload a contract or purchase order and route it for signing by the named parties.

02

Check a document's active status

List active documents read-only to see which contracts are still awaiting signature.

03

Remove a signed document with approval

Delete a document from the account only after confirming it has been archived elsewhere.

02 · ACTIONS

17 Oksign actions, graded by risk.

Every Oksign action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

1

Look things up. Allowed by default.

  • oksign.get_active_documents
    Get Active Documents

write

12

Create and change things. Allow, or ask the user first.

  • oksign.users_retrieve
    Retrieve Users
  • oksign.contacts_upload
    Upload Contacts
  • oksign.document_exists
    Check Document Exists
  • oksign.document_upload
    Upload Document
  • oksign.formdesc_upload
    Upload Form Descriptor
  • oksign.credits_retrieve
    Retrieve Account Credits
  • oksign.contacts_retrieve
    Retrieve Contacts
  • oksign.briefcase_retrieve
    Retrieve Briefcase Information
  • oksign.editorexpress_create
    Create Editor Express Session
  • oksign.linked_list_retrieve
    Retrieve Linked Document List
  • oksign.notifications_upload
    Upload Notifications
  • oksign.org_token_info_update
    Update Organization Token Info

destructive

4

Delete, cancel or archive. Ask first, or deny outright.

  • oksign.contacts_remove
    Remove Contacts
  • oksign.document_remove
    Remove Document
  • oksign.briefcase_remove
    Remove Briefcase
  • oksign.signexpress_remove
    Remove SignExpress Token
03 · HOW IT WORKS

Oksign in three steps.

  1. 01Your users connect OksignThey add their Oksign api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “retrieve Users” can wait for the user, and “remove Contacts” can be denied outright.
  3. 03Any agent can actYour agent calls Oksign through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('oksign', {
  read: 'allow',
  write: 'ask',        // users_retrieve
  destructive: 'deny',  // contacts_remove
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Oksign connects.

Users add their Oksign api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Oksign connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH
API key
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use Oksign from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More documents apps.

Google Docs43 actionsActiveMerge13 actionsAirparser10 actionsAlgodocs3 actionsDocuSign338 actionsSharePoint Graph162 actionsSharePoint105 actionsDocumenso77 actions
ALL DOCUMENTS APPS →
07 · FAQ

Oksign and Arc0, answered.

Q01

Can I use Oksign with Claude, ChatGPT or Cursor?

Yes. Connect Oksign to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Oksign actions you allow.

Q02

How do users connect Oksign?

Users add their Oksign api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Oksign actions can my agent take?

17 in total: 1 read, 12 write and 4 destructive, such as “retrieve Users”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Oksign?

Yes. Actions like “remove Contacts” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Oksign too?

Yes. The same Oksign connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Oksign into your agent.

Your users connect Oksign once, under your brand. Your agent gets 17 actions behind your policies, with every call on the record.

Connect OksignBrowse all apps →

Free to build · MCP + REST · Audit log on every plan