What does publications_in_page mean?

The number of publications counted for that company on the result page; in the sample 24 for Cemex, S.A.B. de C.V.

Do I pay for lookups that come back empty?

No. You are charged per result, so a request that finds nothing costs nothing. Testing this against a messy list is free to get wrong.

What does a lookup cost?

1 point per returned record, which is $1 per 1,000, and only records that come back are charged. Points come out of your monthly plan allowance, so there is no separate per-country contract.

Corporate registry

Mexico Company Search API and MCP — Companies in Registro Público de Comercio Publications

Send a company name and get the Mexican companies that appear in the Registro Público de Comercio publications (PSM): name, legal form and their latest publication with number, type, title and date. The source is publications, so companies that have not published a notice will not appear.

Run it in the app Read the API docs

You send: a company name
You get back: Matching companies with legal form and their latest publication
Coverage: Mexico — entities on PSM (Registro Público de Comercio publications).
Price: 1 point per returned record — $1 per 1,000; Billed per record actually returned, capped by max_items. A request that returns nothing costs nothing.

Comparison

Ways to get this data

Three approaches teams use today, and where each one runs into trouble.

Approach	What it takes	Cost	Trade-off
PSM (Registro Público de Comercio publications) directly	Type the name into PSM (Registro Público de Comercio publications) and read the results	Usually free, sometimes per-document	A different interface, language and data shape for every country you add
Collecting it yourself	Build and host a crawler per register, then keep each one alive	Infrastructure and maintenance	Registers change their pages without warning, and nobody is on the hook when yours breaks
NeuralVerge	One request, the same shape as every other source in the catalog	$1 per 1,000, misses not billed	Covers Mexico — other countries are separate sources with the same request format

Response

What you get back

Every field in the example response below.

Field	Type	Description
`session_id`	string	Id of this run, for tracing.
`kind`	string	Always "mx_companies_search".
`keyword`	string	The search text you sent.
`max_items`	number	The cap you set on returned records.
`start_page`	number	Page the results started from.
`partial`	boolean	True if the run stopped before the cap was reached.
`human`	string	Readable Markdown summary of the run.
`machine.total_items`	number	Records returned in this response.
`machine.total_found`	number	Matches the register reports for the search, which can be more than you asked for.
`machine.page_count`	number	Result pages read.
`machine.blocked`	boolean	False when the register answered normally.
`machine.proxy_traffic_bytes`	number	Data transferred for the run.
`total_points`	number	Points charged: one per returned record.
`machine.first_item.registration_number`	string	Number of the latest publication.
`machine.first_item.name`	string	Company name as published.
`machine.first_item.status`	null	Not part of a publication; null.
`machine.first_item.address`	null	Not part of a publication; null.
`machine.first_item.url`	null	Empty in the sample.
`machine.first_item.company_type`	string	Legal form, for example S.A.B. de C.V.
`machine.first_item.incorporation_date`	null	Not part of a publication; null.
`machine.first_item.last_publication_number`	string	Number of the latest publication.
`machine.first_item.last_publication_type`	string	Type of the latest publication.
`machine.first_item.last_publication_title`	string	Title of the latest publication.
`machine.first_item.last_publication_date`	string	Date of the latest publication, YYYY-MM-DD.
`machine.first_item.publications_in_page`	number	Publications counted for the company on the page.
`machine.items`	array	Every returned record, each with the same keys as first_item.

Response

Example response

A real response, as returned.

{
  "session_id": "11111111-1111-1111-1111-111111111111",
  "kind": "mx_companies_search",
  "keyword": "cemex",
  "max_items": 2,
  "start_page": 1,
  "partial": false,
  "human": "# Mexico — PSM (Registro Público de Comercio publications) — company search\n\n- **Keyword:** cemex\n- **Results:** 2 of 9 found\n- **Proxy traffic:** 11.1 KB",
  "machine": {
    "total_items": 2,
    "first_item": {
      "registration_number": "2026-0000001606",
      "name": "Cemex, S.A.B. de C.V.",
      "status": null,
      "address": null,
      "url": null,
      "company_type": "S.A.B. de C.V.",
      "incorporation_date": null,
      "last_publication_number": "2026-0000001606",
      "last_publication_type": "Convocatoria para Asambleas Generales",
      "last_publication_title": "Convocatoria a la Asamblea General Ordinaria de Accionistas",
      "last_publication_date": "2026-02-06",
      "publications_in_page": 24
    },
    "items": [
      {
        "registration_number": "2026-0000001606",
        "name": "Cemex, S.A.B. de C.V.",
        "status": null,
        "address": null,
        "url": null,
        "company_type": "S.A.B. de C.V.",
        "incorporation_date": null,
        "last_publication_number": "2026-0000001606",
        "last_publication_type": "Convocatoria para Asambleas Generales",
        "last_publication_title": "Convocatoria a la Asamblea General Ordinaria de Accionistas",
        "last_publication_date": "2026-02-06",
        "publications_in_page": 24
      },
      {
        "registration_number": "2019-0000018485",
        "name": "Cemex Agregados, S.A. de C.V.",
        "status": null,
        "address": null,
        "url": null,
        "company_type": "S.A. de C.V.",
        "incorporation_date": null,
        "last_publication_number": "2019-0000018485",
        "last_publication_type": "Convocatoria para Asambleas Generales",
        "last_publication_title": "Convocatoria Asamblea Extraordinaria Cemex Agregados, S.A. de C.V.",
        "last_publication_date": "2019-09-12",
        "publications_in_page": 6
      }
    ],
    "total_found": 9,
    "page_count": 1,
    "blocked": false,
    "proxy_traffic_bytes": 11356
  },
  "total_points": 2
}

Integration

How to run it

The same lookup works from the app, the API, or as a tool an agent can call mid-task.

Results come back in the same envelope as every other source: a session id, a readable summary, the structured result and the points charged.

curl -X POST https://api.neuralverge.ai/functions/v1/run-mx-companies-search \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"keyword":"cemex","max_items":2}'

Use cases

What teams use it for

Where this field shows up in an actual workflow.

Finding the company name as published

Resolve a brand to the legal names that appear in PSM.

Legal form discovery

Read S.A. de C.V., S.A.B. de C.V. and similar forms.

Spotting active entities

Compare each company's latest publication date.

Feeding publication lists

Pass the name to Mexico company publications.

Coverage & limits

Coverage, freshness and limits

What this source covers, how fresh it is, and where it stops.

Coverage

Mexico — entities on PSM (Registro Público de Comercio publications).

Freshness

Read at request time, so the answer reflects the register as it stands when you ask.

Handling

PSM (Registro Público de Comercio publications) is a public register. Every response carries the source URL it was read from and a session id you can trace.

What it will not do

—Only companies with published notices appear; this is not a full register of Mexican companies.
—No address, status or incorporation date.
—A broad keyword matches many entities; check total_found.

FAQ

Questions, answered

No. It searches the company publications of the Registro Público de Comercio, so results are companies that have a published notice.

Related sources

Mexico company publications

Every notice for one company.

Mexico company

One notice by publication number.

All corporate registries

Company registers across Europe, the Americas and Asia-Pacific, plus global LEI lookup.

Try mexico company search on your own data

One request format across every source in the catalog.

Get started