Download one receipt-backed Björn chat attachment
Messages
Download one receipt-backed Björn chat attachment
Returns retained bytes only when the exact document and SHA-256 were committed as a customer-audience attachment on a terminal Customer channel receipt for the signed-in company. A document row, internal artifact, or another tenant’s receipt is never sufficient authority.
GET
Download one receipt-backed Björn chat attachment
Authorizations
Portal API key minted in portal Settings → API access. Scope read or write; pinned to one company. Send as Authorization: Bearer lac_sk_....
Path Parameters
Required string length:
1 - 300Query Parameters
Target company. Optional — API keys are pinned to one company, and single-company sessions default to it.
Response
Exact retained attachment bytes.