patch_v1_captable_stakeholders_id
UpdateStakeholder changes one of the caller org's stakeholders. It is a PARTIAL update: only the fields the request names are written, and a field sent as null clears that column.
UpdateStakeholder changes one of the caller org's stakeholders. It is a PARTIAL update: only the fields the request names are written, and a field sent as null clears that column. A request that names no updatable field is refused, and an id this org does not hold is not found.
The values are stored as sent. Unlike adding a stakeholder, this route does not check the email's shape or the type and relationship vocabularies, so it can record a value that adding one would have rejected.
| Tool | patch_v1_captable_stakeholders_id |
| Door | https://api.hanzo.ai/v1/mcp |
| Method | tools/call (JSON-RPC 2.0) |
| Arguments | 11 |
| Operation | PATCH /v1/captable/stakeholders/{id} |
| Product | captable |
Arguments
| Field | Type | Required | Default | Values | Description |
|---|---|---|---|---|---|
city | any | — | — | — | City is the stakeholder's city. |
currentRelationship | any | — | — | — | CurrentRelationship is how the stakeholder relates to the company, e.g. FOUNDER, INVESTOR or EMPLOYEE. This route stores it as sent — unlike adding a stakeholder, it is not checked against the vocabulary. |
email | any | — | — | — | Email is the stakeholder's email. This route stores it as sent — unlike adding a stakeholder, it is not checked for shape or uniqueness. |
id | string | — | — | — | ID is the stakeholder to update. It is the path segment: the URL is the addressing authority, and the org it is resolved in comes from the caller's principal, so an id from another tenant is simply not found. |
institutionName | any | — | — | — | InstitutionName names the institution, when the stakeholder is one. |
name | any | — | — | — | Name is the stakeholder's full name. |
stakeholderType | any | — | — | — | StakeholderType is INDIVIDUAL or INSTITUTION. This route stores it as sent — unlike adding a stakeholder, it is not checked against the vocabulary. |
state | any | — | — | — | State is the stakeholder's state or province. |
streetAddress | any | — | — | — | StreetAddress is the stakeholder's street address. |
taxId | any | — | — | — | TaxID is the stakeholder's tax identifier. |
zipcode | any | — | — | — | Zipcode is the stakeholder's postal code. |
tools/list declares a type and a description for each field and nothing further. A — means neither the door nor that operation constrains the field.
Call it
A tools/call carries every argument in one flat object — nothing binds to a path or a query string. Nothing above is required, so every declared argument is shown rather than a guess at which matter.
curl -X POST https://api.hanzo.ai/v1/mcp \
-H "Authorization: Bearer $HANZO_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "patch_v1_captable_stakeholders_id",
"arguments": {
"city": "<city>",
"currentRelationship": "<currentRelationship>",
"email": "<email>",
"id": "<id>",
"institutionName": "<institutionName>",
"name": "<name>",
"stakeholderType": "<stakeholderType>",
"state": "<state>",
"streetAddress": "<streetAddress>",
"taxId": "<taxId>",
"zipcode": "<zipcode>"
}
}
}'Values are the operation's own defaults and enumerated values where it declares them, and a <placeholder> where neither source declares one. tools/list needs no credential; tools/call does — called without one the door answers HTTP 200 with a JSON-RPC result whose isError is set and whose text says what was missing. How to get a key →
The operation behind it
| Operation | Route | Product | Summary |
|---|---|---|---|
patch_v1_captable_stakeholders_id | PATCH /v1/captable/stakeholders/{id} | captable | Changes one of the caller org's stakeholders. |
The same capability over plain HTTP is in the captable API reference, on https://api.hanzo.ai.
All 755 tools · The door · API reference
Generated from tools/list on https://api.hanzo.ai/v1/mcp — 833 tools captured 2026-08-01, of which 755 are documented here (the operator surface is not published) (this build read the vendored copy; the door was unreachable).
How is this guide?