Sirenic or API Entreprise (DINUM)

This comparison has a clear answer, and it does not favour us. If you are a public administration, use API Entreprise. It is free, broader than us on employer and tax obligations, and grants access to non-public data no private player is entitled to. We cannot compete on any of those three.

See a real response (free) Get the quote for /v1/eu/recherche

What API Entreprise (DINUM) does better than us

Let us start there, because it is what decides half the cases — and because a comparison where the competitor never wins anything does not deserve to be read.

• If you are a public administration, stop here and use API Entreprise: tax and social-security certificates, non-public data, free of charge. We cannot compete on any of those three, and we do not claim to.
• Their data scope exceeds ours on everything touching public procurement eligibility and employer obligations.

When to use API Entreprise

• You are a public administrative entity — or a software vendor serving administrations. That is their stated eligibility condition: only administrative entities are eligible.
• You need tax and social-security certificates, or non-public data. Off-limits to the private sector, therefore unavailable from us at any price.
• You can wait for the authorisation: it goes through an application reviewed by their legal team, with no stated lead time.

API Entreprise (DINUM): what we found

Surveyed on 2026-08-19, source: https://entreprise.api.gouv.fr/. Every line is verifiable by you, at the same address.

• “Seules les entités administratives sont éligibles” (only administrative entities are eligible) — software vendors serving administrations may also qualify.
• Access goes through a DataPass authorisation, reviewed by their legal team. No lead time is stated on the page.
• The service aggregates more than 20 bodies (INSEE, DGFIP, URSSAF, INPI, Banque de France…) and grants access to certificates the private sector cannot obtain.
• Non-administrative applicants are redirected to the public company directory, which is a lookup service, not an API contract.

What Sirenic does differently

• Pay per call, no account, no key. A 402 call, a settlement in USDC or EURC, the response. No sign-up, no contract, no IP address to declare, no prepaid balance to keep topped up. 87 routes are reachable that way.
• An upstream outage closes the route. We answer 503 and cancel the payment rather than serve a degraded response. A registry snapshot that is too old also closes the route that reads it, instead of selling dead data.
• Ed25519-signed responses. You can prove months later what was served to you, and when.
• Per-block provenance. Each block of a file declares its official registry and as-of date, rather than a blanket “official sources” claim.
• You are not eligible. That is the only reason that really counts: a private company is redirected to the public directory, which is a lookup service, not an API contract.
• No authorisation to obtain. You call and you pay. Time to access is the time to settle, not the time to be approved.
• A different scope, not a competing one: international sanctions, public contracts and their expiries, European registers, invoicing checks, default-risk scoring, sector statistics.

The foundation, in measured figures

Measured in our database on 2026-08-19: 29,922,486 company numbers and 43,896,818 establishments, 6,542,232 financial years across 1,586,046 companies, 3,402,583 detailed tax-form line items, 9,196,396 registry filings, 765,960 public contracts of which 173,633 expire within 18 months, 130,165 names across 6 official sanctions lists, 47,731 authorisations from 9 authorities, 138,020 regulated industrial sites and 2,934 sectors with statistics.

These are a dated snapshot from 2026-08-19, not a live counter. We republish them at each measurement rather than round them up.

How this comparison is built

Every fact carries its survey date and its source address, so that you can contradict it. Nothing is extrapolated: what we could not survey is marked as not surveyed rather than guessed. And every page names what the compared service does better than us — a comparison without that section is not a comparison.

If you spot an error or a fact that has become false, write to contact@sirenic.eu: we will correct the page and its survey date.

How you pay

Every route is paid per call, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a 402 quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is in preparation, and we will not announce a date until it is open. Write to contact@sirenic.eu and we will let you know when it opens.

Paid responses are Ed25519-signed: you can later prove what was served to you, and when. The whole catalogue is free to read in the OpenAPI document and in llms.txt.

One call, end to end

# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Routes used and pricing

Contract end dates are estimates, computed from the notification date and the declared duration. This is not an official re-tendering calendar.

Screening never returns a bare yes/no: every hit carries a 0-to-100 confidence score. Politically exposed persons are not served.

Frequently asked questions

Can a private company use API Entreprise?

No. Their page is explicit: only administrative entities are eligible, with software vendors serving administrations potentially qualifying too. Others are redirected to the public company directory.

What if we are a public body but want your European routes?

Nothing prevents it: the two barely overlap. Use API Entreprise for everything it covers, and our routes for foreign registers, sanctions or contract expiries.

Take it further

No account to create, no key to request: the first step is free and shows you exactly what you would be buying.

See a real response (free) Get the quote for /v1/eu/recherche Read the route reference Get notified about euro packs

Read next

• Sirenic or the free company-search API
• Sirenic or the INPI register directly

Volume figures on this page were measured in our database on 2026-08-19. They are dated snapshots, not live counters. · OpenAPI · llms.txt · Full route catalogue and pricing