SCJN

Mexican Supreme Court case law from the Semanario Judicial de la Federación: 300k+ tesis, searchable by text and filterable by binding force, subject, época, and year. Search first, then read a tesis in full by its registro digital.

Search tesis

POST /mx/scjn/tesis-search/v1

Field	Type	Notes
`query`	string	Required. Search terms.
`tesis_type`	string	Binding force: `jurisprudencia` (binding), `aislada` (non-binding), or `any`.
`subject`	string	Optional materia filter (e.g. `Civil`, `Constitucional`).
`epoch`	string	Optional época number (`5` through `12`).
`year`	string	Optional 4-digit year.
`page`	integer	1-based page number.
`per_page`	integer	Results per page.

curl https://api.croma.run/mx/scjn/tesis-search/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "query": "interés usurario", "tesis_type": "jurisprudencia" }'

Returns query, total, total_pages, page, per_page, count, results, and facets: the valid values (with hit counts) for each filter, computed over the current query. Use those exact strings when filtering.

Field	Notes
`registration_number`	Registro digital. Pass it to the lookup below.
`title`	Tesis heading.
`type`	`jurisprudencia` or `aislada`; null when the source reports neither.
`citation`	Official citation key, e.g. `1a./J. 132/2012 (10a.)`.
`epoch`, `instance`, `court`	Judicial epoch, deciding level, and specific chamber or court.
`source`, `subjects`, `year`	Publication, materias, and year.
`location`	Citation coordinates: `book`, `volume`, `page`, `month`, `year`.
`snippets`	Highlighted match fragments, with inline `<em>` markup around the hits.

One tesis

POST /mx/scjn/tesis/v1

Field	Type	Notes
`registration_number`	string	Required. Registro digital from the search results.

curl https://api.croma.run/mx/scjn/tesis/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "registration_number": "2001360" }'

Returns found, registration_number, and tesis. Beyond the search fields, the full record adds subtitle, circuit, text (the full tesis), notes, precedent_notes, formation (how the criterion was formed, e.g. Contradicción de criterios), issue (the Semanario issue, e.g. Libro 28, Agosto de 2023), publication_date and binding_date (null on pre-Gaceta tesis), linked_case_registrations, linked_vote_registrations, fingerprint (the integrity hash the court publishes for the document), and official_url.

Full reference

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