Reference data · REST · MCP

One key for the reference data your apps and agents need.

Companies, postal codes and trust checks from official reference data, served from our own snapshots with a 99.9% monthly SLA. The catalog gives the refresh date of each domain.

Read the API reference Connect an AI agent

curl https://api.all-apis.dev/v1/geography/fr/postal-codes/74000/cities

Business domains

geography

French cities of a postal code, and postal codes of a city.

GET /v1/geography/fr/postal-codes/{code}/cities
GET /v1/geography/fr/cities?name=

Refreshed as soon as new data is published

companies

Legal identity of French companies by SIREN or by name.

GET /v1/companies/fr/{siren}
GET /v1/companies/fr?name=

Refreshed every month

trust

How far can you trust this IBAN, SIREN, SIRET or email address?

POST /v1/trust/iban
POST /v1/trust/fr/siret
POST /v1/trust/email

Pure algorithms: no data leaves the request

Dataset health lives at /health, and the full list of operations at /v1/catalog.

The source of truth for your AI agents

Add https://mcp.all-apis.dev/mcp as a remote MCP connector and your agents see real reference data: companies, places, trust checks, and every domain we add next. Each tool answers from the same use cases as the REST API: no hallucinated SIREN, no invented postal code.

list_api_domains
find_french_cities_by_postal_code
find_french_company_by_siren
assess_iban_trust

Pricing

Prices exclude VAT. Early access: Pro and pay as you go are indicative.

Capped plans never overspend: calls beyond the cap answer 429 until the 1st of next month. One MCP tool call counts as one API call.

Plan	Price	Calls per month
Free	0 €	100, capped
Starter	20 € excl. VAT / month	100,000, capped
Pro	90 € excl. VAT / month	1,000,000, capped
Pay as you go	0.30 € excl. VAT / 1,000 calls	Your own spending limit