List the sender's document templates. Each template carries the signer roles it expects (fill exactly these, in order, when calling send_for_signature) and a summary of its pre-placed fields — those fields are completed by the SIGNERS at signing time; they cannot be prefilled by the sender. Start here to find what can be sent.

Create a document from a template and email it to signers for signature. IMPORTANT: sending exposes the document contents to every listed email — NEVER guess or infer a signer email address. Use exactly the emails the human gave you; if any is missing or ambiguous, ask the human before calling this tool, and restate the recipient list in your confirmation. ARRAY POSITION assigns template roles: the first signer gets the first role, and so on. The document sends as-is — its fields are filled by the signers at signing, not by you. Returns the document id — poll check_status with it. Pass a stable request_id when you might retry: a replayed request returns the original document instead of double-sending. A mis-sent envelope can be voided by the human from the AddSign dashboard (Cancel).

Get the current state of a document: overall status, each signer (viewed / signed / declined, with timestamps and decline reasons), and the recent audit-trail events. This is the polling surface — call it when the human asks "did they sign?".

Get a short-lived (5 min) download URL for the signed PDF, plus the SHA-256 hash the audit ledger recorded at signing. Give the human the URL to download; the hash lets them (or any tool) verify the file is the evidentiary original. Only fetch the URL yourself if your environment permits network access to addsign.io — many sandboxes do not. Only works once the document status is signed.

Send a reminder email to signers who have not signed yet (all of them, or one by email). Server-side throttling applies: a signer reminded in the last 4 hours is skipped, not re-emailed — the response lists who was reminded and who was skipped.

List the sender's documents, newest first, optionally filtered by status. Each row carries declined_by (name, email, reason) when a signer declined — such envelopes have status 'cancelled', but ALWAYS report them to the human as declined, with the reason. Paginate with limit/offset (limit max 100).