---
title: "Fetch an available signed Run Card."
method: GET
path: "/api/run-cards/{id}"
tags: ["Run Cards"]
---

# Fetch an available signed Run Card.

`GET /api/run-cards/{id}`

## Request

- Base URL: `https://huggingbay.xyz`
- URL: `https://huggingbay.xyz/api/run-cards/{id}`
- Auth: none declared

Public and always revalidated against the stored key, explicit revocations, expiry, and the current recorded executable snapshot. Unavailable cards never return their signed body.

**Inputs.** Path, query and header fields are listed below. No request body is required.

**Outputs.** See each status below for its media type, schema and headers. A missing record or unavailable capability is not a successful empty result.

**Errors.** API JSON failures use the documented response schema. Read code, message and next; retry only when the response allows it. Auth, invalid input and missing records need a caller change.

**Rate limits.** Public read budgets apply by client IP and route group. This operation can have a smaller route-specific budget. Read Retry-After on 429 or retryable 503 responses.

**Example setup.** Use an identifier returned by the matching list, search or create operation. Sample identifiers are not a promise that a record exists.

## Response `200`

Signed Run Card

- RunCard
  - `schema` 'hugging-bay.run-card.v1', required
  - `contractVersion` '1.1.0', required
  - `id` string, required
  - `decisionId` string, required
  - `agentHandoffId` string, required
  - `publisherReferralId` string
  - `signingKeyId` string, required
  - `task` string, required
  - `constraints` object, required
    - `contextTokens` integer
    - `maxDownloadBytes` integer
    - `maxDiskBytes` integer
    - `commercialSafe` boolean
    - `privacy` string
    - `bandwidthClass` string
    - `qualityFloor` string
    - `language` string
  - `rig` object, required
    - `id` string, required
    - `profileDigest` string, required
  - `representation` object, required
    - `artifactId` string, required
    - `representationId` string, required
    - `source` object, required
      - `provider` string, required
      - `identity` string, required
      - `revision` string, required
    - `selectedFilesDigest` string, required
    - `representationDigest` string, required
    - `evidenceSnapshotDigest` string, required
    - `files` object[], required
      - `path` string, required
      - `role` string, required
      - `sizeBytes` integer, required
      - `sha256` string, required
  - `runtime` object, required
    - `adapterId` 'llama.cpp' | 'sentence-transformers' | 'transformers', required
    - `engineVersion` string, required
    - `adapterVersion` string, required
    - `adapterAbiVersion` string, required
    - `executable` 'hbay-runtime', required
    - `contractDigest` string, required
    - `commandEvidenceDigest` string, required
    - `argv` string[], required
  - `fit` object, required
    - `verdict` 'fits', required
    - `evidenceLevel` 'measured' | 'conservative-estimate', required
    - `requiredBytes` integer, required
    - `headroomBytes` integer, required
    - `evidenceDigest` string, required
  - `smoke` object, required
    - `suiteId` string, required
    - `expectedBoundary` string, required
    - `passed` unknown, required
    - `passedAt` string, date-time, required
    - `evidenceDigest` string, required
  - `recovery` object, required
    - `code` string, required
    - `path` string, required
  - `policy` object, required
    - `decision` 'allow', required
    - `policyDigest` string, required
    - `reasonCodes` string[], required
    - `expiresAt` string, date-time, required
  - `evidenceCutoff` string, date-time, required
  - `executableState` 'complete-runnable' | 'complete-verified', required
  - `authority` object, required
    - `automationPreflightId` string, required
    - `decisionDigest` string, required
    - `policyEvidenceId` string, required
    - `policyEvidenceDigest` string, required
  - `authorization` object, required
    - `principalId` string, required
    - `owner` string, required
  - `use` object, required
    - `argv` unknown[], required
      - unknown
  - `runCardDigest` string, required
  - `signature` object, required
    - `algorithm` 'Ed25519', required
    - `keyId` string, required
    - `canonicalDigest` string, required
    - `value` string, required

## Other responses

- `404`: Unknown opaque card ID
- `410`: Expired, revoked, or no longer current
- `503`: Integrity or authoritative state unavailable

---

[API](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api.md) · [All operations](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api/revisions/63c474bf0fe4?raw)