> Source: https://wexa.ai/docs/api/identity

# Identity

`GET /v1/whoami` answers one question: **what did the gateway decide my credential means?** It takes
no parameters, changes nothing, and returns the resolved scope — the caller, their role, their
organization, department and project, and the grants that will be checked on every later call.

It is the first call to make when something is refused and you are not certain why, because almost
every `403` is a disagreement between the credential you think you are sending and the one your
client picked up.

## The route

```bash
curl -sS https://fabric.wexa.ai/v1/whoami \
  -H "Authorization: Bearer $WEXA_API_KEY"
```

```json
{
  "user_id": "u_abc",
  "role": "OWNER",
  "org_id": "org_abc",
  "dept_id": "dept_abc",
  "project_id": "proj_abc",
  "grants": ["fabric:query.read", "fabric:docs.read", "fabric:ontology.write",
             "fabric:orchestrate.read", "fabric:orchestrate.write", "fabric:agent.run",
             "fabric:skill.write", "fabric:model.write"]
}
```

| Field | Meaning |
|---|---|
| `user_id` | The person the credential acts as. For an API key this is whoever created it, not whoever is using it. |
| `role` | The gateway's own role vocabulary: `OWNER`, `ORG_ADMIN`, `ORG_MEMBER`, `PROJECT_ADMIN`, `PROJECT_MEMBER`. |
| `org_id`, `dept_id`, `project_id` | The scope every call is pinned to. A tool call cannot reach outside it. |
| `grants` | The permissions checked before each tool runs. |
| `auth_kind` | Which kind of credential was used: `api_key`, `user_jwt`, `oauth` or `session`. |
| `session_id` | Only for an SDK session from [login](/docs/tools/login): the session's id. |

It accepts all four credential types. `POST` to the same path is `405 Method Not Allowed` — it is a
read, and the gateway keeps reads on `GET`. Without a credential it answers the standard `401` with
the `WWW-Authenticate` challenge described in [authentication](/docs/api/authentication).

## The answer depends on the credential, not only on the person

This is the single most useful thing the endpoint tells you. One person, one project, three
credentials, three different answers — all read back from a live gateway:

| Credential | `grants` |
|---|---|
| API key created with no explicit grants, by an `OWNER` | `query.read`, `docs.read`, `ontology.write`, `orchestrate.read`, `orchestrate.write`, `agent.run`, `skill.write`, `model.write` |
| User token for the same `OWNER` | `query.read`, `ontology.write`, `docs.read`, `catalog.read`, `catalog.write`, `agent.run` |
| OAuth access token consented to `query.read docs.read` | `query.read`, `docs.read` |
| API key created with `{"grants":["fabric:query.read"]}` | `query.read` |

Read the first two rows together. The user token is the only one of the three carrying
`catalog.read` and `catalog.write`; the API key is the only one carrying `skill.write` and
`model.write`. So a call that works from the dashboard can fail from a script, and the reverse, with
the same person behind both. That is not a bug to work around — it is the answer to "why does this
work there and not here", and `whoami` is where you see it.

The fourth row makes the other half of the point: `role` stayed `OWNER` on that narrow key while
`grants` held one entry. **The role is not the permission.** A grant check reads the grant list, so
an admin role on a key with one grant buys nothing.

## Reading a refusal with it

A missing grant refuses at the scope-resolution stage and names the grant it wanted:

```text
error (S2:resolve-scope): token missing required grant "fabric:ontology.write"
```

Compare that string against the `grants` array and the answer is immediate: either the credential
was minted too narrow, or your client is not sending the credential you think it is. Nothing else
needs debugging first.

## When to prefer the documentation tool

`whoami` is deliberately minimal. For a fuller picture in one call, `POST /v1/docs` with
`{"topic":"governance"}` returns the same grants plus your project's mode, your live quota headroom
and the gateway's own operating rules:

```json
{
  "grants": ["fabric:query.read", "…"],
  "mode": "auto",
  "quota": { "org_window_max": 600, "org_window_used": 1,
             "project_window_max": 120, "project_window_used": 1 },
  "scope": { "org_id": "org_abc", "dept_id": "dept_abc", "project_id": "proj_abc",
             "user_id": "u_abc", "role": "OWNER", "grants": ["…"],
             "auth_kind": "api_key", "api_key_id": "key_Qu8IVcZ6cScOU3psqTEFHxTt" }
}
```

The `scope.auth_kind` field is worth the call on its own: `api_key`, `user_jwt` or `session` tells you which
credential your client actually picked up; `whoami` reports it too. Use `whoami` for a cheap
scope check in a health endpoint or a startup assertion; use the documentation tool when you are
debugging.

## A startup assertion worth writing

An unattended job that asserts its own scope at startup fails on the deployment rather than
halfway through a run, when half the work is already done:

```python
import os, urllib.request, json

req = urllib.request.Request(
    f"{os.environ['WEXA_BASE']}/whoami",
    headers={"Authorization": f"Bearer {os.environ['WEXA_API_KEY']}"},
)
me = json.load(urllib.request.urlopen(req))

assert me["project_id"] == os.environ["EXPECTED_PROJECT"], f"wrong project: {me['project_id']}"
assert "fabric:ontology.write" in me["grants"], "key cannot write the ontology"
```

The second assertion is the one that earns its place. A key rotated with the role default instead of
the grants the old one carried looks identical until the first write is refused — and by then the
job has already read, computed and partly committed.

## Related

  <Card title="Authentication" href="/docs/api/authentication">
    How each credential type resolves to the scope this endpoint echoes.
  </Card>
  <Card title="API keys" href="/docs/api/api-keys">
    Minting a key with exactly the grants the job needs.
  </Card>
  <Card title="Discovery" href="/docs/api/discovery">
    The uncredentialed counterpart, for clients that hold nothing yet.
  </Card>
  <Card title="Tenancy" href="/docs/concepts/tenancy">
    What an organization, department and project pin actually mean.
  </Card>
