# List tax jurisdictions and their coverage

> The knowledge.jurisdictions.list operation: GET /api/v1/tax/knowledge/jurisdictions in the REST API and the knowledge_jurisdictions_list tool in the MCP server.

Lists the jurisdictions of the Jurisdiction Knowledge Base: the coverage map. Each one has its coverage
`level` (L0 known, L1 tax, L2 registration, L3 filing, L4 connector) and `target`, its priority `tier`
(1 = launch), the status of its own record (`meta`), and counts of its records by status (`records`), with
their open questions and the earliest `nextReviewBy`.

Filter by `tier`, coverage `level` or the jurisdiction record's `status`. Sorted by ID; paginate with
`limit` (1–100, default 100) and `starting_after` (the previous `next_cursor`). Records at `researched` or
`cross_checked` aren't reviewed yet: live mode uses only reviewed or verified records (spec §7.2).

## At a glance

- **REST:** `GET /api/v1/tax/knowledge/jurisdictions`
- **MCP tool:** `knowledge_jurisdictions_list`
- **Operation ID:** `knowledge.jurisdictions.list`
- **Scope:** Platform
- **Permission:** `tax_knowledge:read`
- **Risk tier:** `read`
- **Dry run:** Not supported
- **Idempotency:** Not needed (read only)
- **Modes:** Test and live
- **Pagination:** `limit` (at most 100) and `starting_after`
- **Authentication:** API key with the `tax_knowledge:read` scope
- **Since:** M3

## Request

### Query parameters

| Field            | Type                                                                    | Required | Description |
| ---------------- | ----------------------------------------------------------------------- | -------- | ----------- |
| `tier`           | integer                                                                 | No       |             |
| `level`          | one of `L0`, `L1`, `L2`, `L3`, `L4`                                     | No       |             |
| `status`         | one of `researched`, `cross_checked`, `reviewed`, `verified`, `retired` | No       |             |
| `limit`          | integer (1 to 100)                                                      | No       |             |
| `starting_after` | string                                                                  | No       |             |

## Response

`200 OK` with a JSON object, a page of the list (newest first):

| Field                                  | Type                                                                    | Description |
| -------------------------------------- | ----------------------------------------------------------------------- | ----------- |
| `object`                               | `"list"`                                                                |             |
| `data`                                 | array of object                                                         |             |
| `data[].id`                            | string                                                                  |             |
| `data[].object`                        | `"tax_jurisdiction"`                                                    |             |
| `data[].name`                          | string                                                                  |             |
| `data[].type`                          | one of `country`, `subdivision`, `union`                                |             |
| `data[].parent`                        | string                                                                  |             |
| `data[].euMember`                      | boolean                                                                 |             |
| `data[].currency`                      | string                                                                  |             |
| `data[].timezone`                      | string                                                                  |             |
| `data[].coverage`                      | object                                                                  |             |
| `data[].coverage.level`                | one of `L0`, `L1`, `L2`, `L3`, `L4`                                     |             |
| `data[].coverage.target`               | one of `L0`, `L1`, `L2`, `L3`, `L4`                                     |             |
| `data[].coverage.tier`                 | `1` or `2` or `3`                                                       |             |
| `data[].authority`                     | object                                                                  |             |
| `data[].authority.name`                | string                                                                  |             |
| `data[].authority.url`                 | string                                                                  |             |
| `data[].authority.portalUrl`           | string                                                                  |             |
| `data[].taxId`                         | object                                                                  |             |
| `data[].taxId.type`                    | string                                                                  |             |
| `data[].taxId.format`                  | string                                                                  |             |
| `data[].taxId.example`                 | string                                                                  |             |
| `data[].taxId.validation`              | object                                                                  |             |
| `data[].taxId.validation.service`      | one of `VIES`, `HMRC`, `CH_UID`, `ABN_LOOKUP`, `none`, `other`          |             |
| `data[].taxId.validation.url`          | string                                                                  |             |
| `data[].meta`                          | object                                                                  |             |
| `data[].meta.status`                   | one of `researched`, `cross_checked`, `reviewed`, `verified`, `retired` |             |
| `data[].meta.fixture`                  | boolean                                                                 |             |
| `data[].meta.confidence`               | one of `high`, `medium`, `low`                                          |             |
| `data[].meta.sourceIds`                | array of string                                                         |             |
| `data[].meta.openQuestions`            | integer (at least 0)                                                    |             |
| `data[].meta.unsupportedRules`         | integer (at least 0)                                                    |             |
| `data[].meta.blockingUnsupportedRules` | integer (at least 0)                                                    |             |
| `data[].meta.reviewedBy`               | string                                                                  |             |
| `data[].meta.reviewedAt`               | string                                                                  |             |
| `data[].meta.verifiedBy`               | string                                                                  |             |
| `data[].meta.verifiedAt`               | string                                                                  |             |
| `data[].meta.nextReviewBy`             | string                                                                  |             |
| `data[].meta.knowledgeRef`             | object                                                                  |             |
| `data[].meta.knowledgeRef.path`        | string                                                                  |             |
| `data[].meta.knowledgeRef.commit`      | string                                                                  |             |
| `data[].records`                       | object                                                                  |             |
| `data[].records.total`                 | integer (at least 0)                                                    |             |
| `data[].records.researched`            | integer (at least 0)                                                    |             |
| `data[].records.cross_checked`         | integer (at least 0)                                                    |             |
| `data[].records.reviewed`              | integer (at least 0)                                                    |             |
| `data[].records.verified`              | integer (at least 0)                                                    |             |
| `data[].records.retired`               | integer (at least 0)                                                    |             |
| `data[].openQuestions`                 | integer (at least 0)                                                    |             |
| `data[].unsupportedRules`              | integer (at least 0)                                                    |             |
| `data[].nextReviewBy`                  | string                                                                  |             |
| `has_more`                             | boolean                                                                 |             |
| `next_cursor`                          | string or null                                                          |             |

## Examples

### Tier 1 jurisdictions

```http
GET /api/v1/tax/knowledge/jurisdictions?tier=1
Authorization: Bearer or_test_…
```

Response (`200`):

```json
{
  "object": "list",
  "data": [
    {
      "id": "HR",
      "object": "tax_jurisdiction",
      "name": "Croatia",
      "type": "country",
      "euMember": true,
      "currency": "EUR",
      "timezone": "Europe/Zagreb",
      "coverage": {
        "level": "L3",
        "target": "L3",
        "tier": 1
      },
      "authority": {
        "name": "Porezna uprava",
        "url": "https://www.porezna-uprava.hr"
      },
      "taxId": {
        "type": "eu_vat",
        "format": "^HR\\d{11}$",
        "validation": {
          "service": "VIES"
        }
      },
      "meta": {
        "status": "reviewed",
        "fixture": false,
        "confidence": "high",
        "sourceIds": ["HR:S1", "HR:S4"],
        "openQuestions": 0,
        "unsupportedRules": 0,
        "blockingUnsupportedRules": 0,
        "reviewedBy": "Ana Horvat",
        "reviewedAt": "2026-10-10",
        "nextReviewBy": "2027-04-13",
        "knowledgeRef": {
          "path": "data/tax/knowledge/jurisdictions/HR/jurisdiction.yaml",
          "commit": "1c14b2ec912aca347dd518b2044096f3b5d8eef1"
        }
      },
      "records": {
        "total": 14,
        "researched": 2,
        "cross_checked": 4,
        "reviewed": 8,
        "verified": 0,
        "retired": 0
      },
      "openQuestions": 3,
      "unsupportedRules": 1,
      "nextReviewBy": "2027-04-13"
    }
  ],
  "has_more": false,
  "next_cursor": null
}
```

## Errors

| Code                                                                                   | HTTP status | When                                                                                           | What to do                                                                      |
| -------------------------------------------------------------------------------------- | ----------- | ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
| [`validation_failed`](https://ownrecord.io/docs/reference/errors.md#validation_failed) | 400         | A filter isn't a tier (1–3), a coverage level or a record status, or the page size is invalid. | Fix the fields listed in `details.issues` and send the request again.           |
| [`permission_denied`](https://ownrecord.io/docs/reference/errors.md#permission_denied) | 403         | Your credentials can't read tax knowledge.                                                     | Ask an organization owner or admin for a role or scope that allows this action. |

It can also return these [common errors](https://ownrecord.io/docs/reference.md#common-errors): [`api_version_unsupported`](https://ownrecord.io/docs/reference/errors.md#api_version_unsupported), [`authentication_required`](https://ownrecord.io/docs/reference/errors.md#authentication_required), [`api_key_invalid`](https://ownrecord.io/docs/reference/errors.md#api_key_invalid), [`resource_not_found`](https://ownrecord.io/docs/reference/errors.md#resource_not_found), [`dry_run_not_supported`](https://ownrecord.io/docs/reference/errors.md#dry_run_not_supported), [`rate_limited`](https://ownrecord.io/docs/reference/errors.md#rate_limited), [`internal_error`](https://ownrecord.io/docs/reference/errors.md#internal_error).
