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Add a user directly to a project

POST
/v1/projects/{projectId}/memberships
curl --request POST \
--url https://example.com/v1/projects/example/memberships \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{ "userId": "example", "role": "viewer" }'

Idempotent on (projectId, userId) — re-adding an existing member with a different role does NOT overwrite; use PATCH for role changes.

projectId
required
string

ProjectId — opaque branded string.

Idempotency-Key
string
>= 1 characters

Caller-supplied idempotency key. Retries with the same key return the original response byte-identical (per docs/API-ROUTE-CONVENTIONS.md §3.1).

Media typeapplication/json
object
userId
required
string
>= 1 characters
role
required

Role on a project membership.

string
Allowed values: viewer editor owner admin member

Membership added.

Media typeapplication/json
object
projectId
required
string
userId
required
string
role
required

Role on a project membership.

string
Allowed values: viewer editor owner admin member
Example
{
"role": "viewer"
}

Malformed request body.

Media typeapplication/json
object
error
required
object
code
required

Stable machine-readable discriminant. Values match domain error codes (see docs/API-ROUTE-CONVENTIONS.md §4.3).

string
message
required
string
details

Optional, kind-specific.

object
key
additional properties
any
requestId
required

Server-assigned request id; also echoed via X-Request-Id header.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"details": {},
"requestId": "example"
}
}

Missing / malformed / expired / revoked bearer token.

Media typeapplication/json
object
error
required
object
code
required

Stable machine-readable discriminant. Values match domain error codes (see docs/API-ROUTE-CONVENTIONS.md §4.3).

string
message
required
string
details

Optional, kind-specific.

object
key
additional properties
any
requestId
required

Server-assigned request id; also echoed via X-Request-Id header.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"details": {},
"requestId": "example"
}
}

No project with that id under this tenant.

Media typeapplication/json
object
error
required
object
code
required

Stable machine-readable discriminant. Values match domain error codes (see docs/API-ROUTE-CONVENTIONS.md §4.3).

string
message
required
string
details

Optional, kind-specific.

object
key
additional properties
any
requestId
required

Server-assigned request id; also echoed via X-Request-Id header.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"details": {},
"requestId": "example"
}
}

Idempotency-Key was reused with a different body, or resource-state conflict.

Media typeapplication/json
object
error
required
object
code
required

Stable machine-readable discriminant. Values match domain error codes (see docs/API-ROUTE-CONVENTIONS.md §4.3).

string
message
required
string
details

Optional, kind-specific.

object
key
additional properties
any
requestId
required

Server-assigned request id; also echoed via X-Request-Id header.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"details": {},
"requestId": "example"
}
}

Server error (unmapped domain code or framework crash).

Media typeapplication/json
object
error
required
object
code
required

Stable machine-readable discriminant. Values match domain error codes (see docs/API-ROUTE-CONVENTIONS.md §4.3).

string
message
required
string
details

Optional, kind-specific.

object
key
additional properties
any
requestId
required

Server-assigned request id; also echoed via X-Request-Id header.

string
Examplegenerated
{
"error": {
"code": "example",
"message": "example",
"details": {},
"requestId": "example"
}
}