Add a member

Adds a person who already has a Voidhash account to the organization as a member, and returns their membership.

Adding someone who is already a member keeps their role. An app limited to reading cannot add members.

Errors

Status	`type`	`code`	When
400	`invalid_request`	`invitee_has_no_account`	When no account has verified the email; invite them instead.

It can also fail with the errors every operation shares, such as unauthenticated; see Errors.

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Authorization Path parameters Request body Examples Response body Errors More in Members

Authorization

AuthorizationBearer <token>

A project secret key: vh_sk_... for production, vh_sk_test_... for test. Keep it on your servers.

In: header

Path parameters

organizationId*string

The organization's id, org_....

Request body

application/json

TypeScript definitions

Use the request body type in TypeScript.

email*string

The email address of the person's Voidhash account, which must be verified; matched without regard to case.

Length1 <= length

Examples

curl -X POST "https://api.voidhash.com/api/v1/organizations/org_w5xk2e7q0lzv3n8b1c4d6f9g/members" \  -H "Authorization: Bearer vh_sk_..." \  -H "Content-Type: application/json" \  -d '{    "email": "katherine@example.com"  }'

{  "id": "member_h1g4f7d0s3a6q9b6n9m2k5j8",  "organizationId": "org_w5xk2e7q0lzv3n8b1c4d6f9g",  "role": "member",  "userId": "user_v9c2x5b7n4w0e8r1k3m8q1z6",  "email": "katherine@example.com",  "name": "Katherine Johnson",  "source": "manual",  "createdAt": "2026-03-14T09:35:00.000Z"}

{  "error": {    "type": "invalid_request",    "code": "invitee_has_no_account",    "message": "No Voidhash account has verified jane@example.com; invite them instead.",    "param": "email"  }}

{  "error": {    "type": "unauthenticated",    "code": "invalid_api_key",    "message": "This secret key is not valid."  }}

{  "error": {    "type": "permission_denied",    "code": "permission_denied",    "message": "Insufficient permissions."  }}

{  "error": {    "type": "not_found",    "code": "organization_not_found",    "message": "There is no organization org_w5xk2e7q0lzv3n8b1c4d6f9g, or this credential cannot use it.",    "param": "organizationId"  }}

{  "error": {    "type": "internal",    "code": "internal_error",    "message": "Something went wrong on our side. Try again, and contact support with the Request-Id header if it keeps failing."  }}

Add a member

Errors

More in Members

Add a member

Errors

More in Members

Authorization

Path parameters

Request body

Examples

Response body

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

Add a member

Add a member

201application/json

400application/json

401application/json

403application/json

404application/json

500application/json

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`