> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usecroma.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cámara de Diputados

> Mexican federal laws, codes and reglamentos from the Cámara de Diputados compilation, with the full reform history and current text behind each one.

The official compilation of Mexican federal legislation: 315+ laws and codes
(including the Constitution, and recently abrogated laws flagged `abrogated`),
135+ reglamentos, and the chronological log of every reform decree. Four
endpoints: two catalogs, one detail lookup, and the reform log.

## Federal laws

`POST /mx/diputados/federal-laws/v1`

| Field | Type | Notes |
| - | - | - |
| `query` | string | Optional name filter. Case- and accent-insensitive substring; also matches the abbreviation. |
| `page` | integer | 1-based page number. 100 laws per page. Default `1`. |

```bash theme={"dark"}
curl https://api.croma.run/mx/diputados/federal-laws/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "query": "instituciones de crédito" }'
```

Returns `laws` and `pagination` (`total`, `page`, `page_size`, `total_pages`).

| Field | Notes |
| - | - |
| `id` | Law identifier (e.g. `lic`, `cpeum`). Pass it to the lookup below. |
| `name`, `abbreviation` | Full name and official short code, when the compilation uses one. |
| `publication_date` | Original DOF publication date. |
| `last_reform_date` | Date of the most recent reform; null when unreformed. |
| `last_reform_note` | Set when the latest listed event is judicial rather than a reform. |
| `status_note` | Legal-status annotations: invalidity declarations, pending abrogation, entry into force. |
| `abrogated` | `true` when the law is listed as abrogated (no longer in force). |
| `reformed` | Whether the law has ever been reformed. |
| `pdf_url`, `doc_url` | Current consolidated text. |

## One law

`POST /mx/diputados/federal-law/v1`

| Field | Type | Notes |
| - | - | - |
| `law_id` | string | **Required.** The `id` from the catalog above. |

```bash theme={"dark"}
curl https://api.croma.run/mx/diputados/federal-law/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "law_id": "lic" }'
```

Returns `found`, `law_id`, and `law`. The law carries every catalog field plus
`original_publication` (`dof_date` and a scan of the original) and `reforms`:
every decree that amended it, newest first, each with `number`, `dof_date`,
`description` (the decree headline), `pdf_url`, `doc_url`, and any `errata`.

## Federal regulations

`POST /mx/diputados/federal-regulations/v1`

| Field | Type | Notes |
| - | - | - |
| `query` | string | Optional name filter. Case- and accent-insensitive substring. |
| `page` | integer | 1-based page number. 50 per page. Default `1`. |

```bash theme={"dark"}
curl https://api.croma.run/mx/diputados/federal-regulations/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "query": "ley aduanera" }'
```

Returns `regulations` and `pagination`. Each reglamento has `name`,
`abrogated`, `publication_date`, `pdf_url`, `doc_url`, and an inline `history`
of entries typed `original`, `reform`, `amounts` (the annual amount and fee
updates), `erratum`, `clarification`, or `validity` (Fe de erratas, Aclaración,
and Disposición de vigencia notices), each with its `dof_date` and `doc_url`.

## Reforms by year

`POST /mx/diputados/law-reforms/v1`

| Field | Type | Notes |
| - | - | - |
| `year` | string | Optional 4-digit year. Defaults to the current year. Archives verified from 2022. |
| `page` | integer | 1-based page number. 50 decrees per page. Default `1`. |

```bash theme={"dark"}
curl https://api.croma.run/mx/diputados/law-reforms/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "year": "2026" }'
```

Returns `year`, `found` (`false` when no reform log exists for that year),
`pagination`, and `decrees`, newest first. There is one entry per DOF
publication day, and a single day can bundle several instruments. Each entry has
`dof_date`, `summary` (full decree prose, which can be long), `actions`, and
`affected_laws`, since one decree can touch many laws. Canonical actions are
`reforman`, `adicionan`, `derogan`, `abrogan`, `expiden`, `modifican`,
`actualizan`, `fe de erratas`, and `aclaración`, plus `sentencia` for court
entries that carry no decree verb.

<Card title="Full reference" icon="code" href="/api-reference/overview">
  Schemas, all response fields, and an interactive playground.
</Card>


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