---
title: "Government of Canada nominal bond auction results"
method: GET
path: "/api/v1/boc/bond-auctions"
tags: ["Central Banks & Monetary"]
---

# Government of Canada nominal bond auction results

`GET /api/v1/boc/bond-auctions`

Historical nominal-bond auction results (group `AUC_BOND_RESULTS`). Each row is a single auction with auction date, bidding deadline, issue date, term, maturity, coupon rate, ISIN, amount issued (CAD millions), bid-to-cover ratio, and allotment details.

Rows are keyed by the `bond_id` field (e.g. `2024-01-25_HIST_BOND_1`). Stretches back to 1998.

## Query parameters

- `recent` integer — Number of most recent auction records to return.

## Response `200`

Historical nominal-bond auction rows (date, term, ISIN, amount, coverage).

- EnvelopeBocBondAuctionsData
  - `data` BocBondAuctionsData, required — Historical nominal-bond auction results.
    - `seriesDetail` object, required — Map of auction field code to metadata.
    - `count` integer, required — Number of auction rows in this response.
    - `observations` BocAuctionObservation[], required — Array of auction rows, keyed by bond_id/tbill_id/bond_sched/tr_sched.
      - `bond_id` string, nullable — Bond auction identifier.
      - `tbill_id` string, nullable — Treasury bill auction identifier.
      - `bond_sched` string, nullable — Scheduled bond auction identifier.
      - `tr_sched` string, nullable — Scheduled term-repo operation identifier.
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

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