> ## Documentation Index
> Fetch the complete documentation index at: https://doc.astreus.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Debt, ownership and supply chains

> Research obligations, disclosed relationships and changes in ownership using cited evidence.

## Corporate debt

`/companies/{id}/debt` returns disclosed obligations and their evidence.
`/debt/issuers` groups bonds by company, largest market cap first by default.
`/debt/instruments` screens the held instrument registry; a selected instrument
has a detail route. Filter by as-of date, currency, kind and query, and use the
revision-bound cursor when paging instruments. `include_matured=true` includes
matured instruments with their evidence; the default omits them. A prior disclosure does not establish that
the obligation remains outstanding today.

MCP `get_company_debt` and `screen_corporate_bonds`, plus `astreus debt`, cover
these reads. Source documents use `/companies/{id}/debt/sources/{sourceId}`.
Native-currency amounts must not be summed across currencies without an explicit
conversion policy. Market yields or valuations require the relevant data rights.

## Ownership and management

`/ownership`, `/ownership/transactions`, `/ownership/insider-history` and
`/ownership/nationality-history` cover different ownership concepts. Keep the
reported share class, date and denominator with a percentage. Transaction
filters can bound dates and owners. `/management` supplies management and board
information with its associated source events.

Use `get_ownership` and `get_management` over MCP. `astreus ownership` and
`astreus management` retain their formatted views; the complete operation
interface reaches the history endpoints. Public filings are evidence of a
reported position, not a live beneficial-ownership guarantee.

## Supply chains and counterparties

`/companies/{id}/supply-chain` lists disclosed relationships; `/{edgeKey}`
retrieves the supporting detail. Keep the relationship role, date, disclosed
amount or concentration, and primary evidence. Absence from held disclosures
does not establish that a supplier/customer relationship does not exist.

Use MCP `get_supply_chain` or `astreus supply-chain`. Full parameter schemas
and endpoint-to-tool mappings are in the [tool reference](https://doc.astreus.ai/tool-reference.md).


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