Substradium for agents

What the source is

Substradium stores dated public carrier records and returns source rows with capture receipts.

What is free and what is bought

The free call is a qualification: whether this archive can answer for a carrier and a date, what each source holds for that period, and what a purchased record could establish. It carries no row of the record, no event date, no insurer, no policy number, no hash and no receipt. The record itself is returned at /v1/records/<order_ref>, to the buyer or the recorded reseller on a paid order whose subject and date match the request; a key on its own authorizes nothing. Verification is unchanged: an issued record verifies exactly as it did before.

Until the cutover date, /v1/carrier still answers with a record and sends Deprecation, Sunset and Link headers saying so. The Sunset header carries the date once the operator has set one; the change itself is noted in the OpenAPI document.

Coverage

Substradium keeps its own dated copies of public federal and state carrier records. Coverage differs by carrier and by date, so it is answered per request: the free check says, for the carrier and date you name, whether this archive can answer and what a purchased record would establish. A date the archive did not capture is answered as “not captured”, never as clean. A purchased record states the source and capture time of every row it relies on.

What it does not claim

A filing on record is not coverage. A registry row is not operating status. Nothing here is an opinion.

Specimens

The three specimens are samples with the carrier withheld. Their receipt hashes are sample labels that do not verify, their verification results describe the original record and were not recomputed on the sample, and a specimen's fingerprint identifies the sample file only.

Machine files

• https://substradium.com/schema/v1/qualification.schema.json
• https://substradium.com/schema/v1/record.schema.json
• https://substradium.com/schema/v1/openapi.json
• https://substradium.com/asof/specimen/record.json
• https://substradium.com/legal/specimen-coverage/record.json
• https://substradium.com/legal/specimen-successor/record.json
• https://substradium.com/methodology/methodology.json
• https://substradium.com/c/<usdot>/record.json
• https://substradium.com/verify/

Limits

Without a key: ten calls a minute and twenty a day per address. That count is kept in the service process and resets when the process restarts, which includes every deploy, so a caller who is limited may be allowed again after a restart. With a key: two hundred qualification checks per calendar month, counted in the database. Write to hello@substradium.com for a larger allowance. A service-wide daily cap on assemblies protects the database that serves paid orders; beyond it the free calls answer 503 with Retry-After, and a retrieval against a paid order is not capped.

Pricing and how to order

The qualification is free and bounded. The record is bought: Certified record with custodian declaration $1,500, for one carrier and one date. To order, use the request box at https://substradium.com/asof/#order or write to hello@substradium.com with the carrier's USDOT or MC number and the date; Substradium confirms scope and sends an invoice once terms are in place, and the record is delivered against the paid order. Every qualification answer carries order_url and the posted price. Per-call pricing for the metered endpoint is not open and is not built.

How to cite an answer

Cite the record fingerprint and https://substradium.com/verify/.

Contact

hello@substradium.com