> ## Documentation Index > Fetch the complete documentation index at: https://docs.errorbar.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get an evidence bundle > Download the forwardable proof bundle for a DONE eval run — verdict, frozen judge calibration and certificate, per-sample verdict lineage, refusal ledger events and an audit hash-chain attestation, optionally with the embedded CI-gate decision — so a customer can hand a reviewer or auditor one signed JSON that links claim to instrument to data. 404 for a run outside this key's workspace. 412 {code:"precondition_failed"} for any run that is not DONE (PENDING/RUNNING/ERROR/CANCELLED) — fail closed like the gate; poll until DONE. with_content silently degrades (never errors) when request logging is off. Read-only, no spend. ## OpenAPI ````yaml /openapi.json get /v1/evals/{id}/evidence openapi: 3.1.0 info: title: errorbar Management API description: >- The management API behind the improvement loop: capture and setup, request logs and datasets, grades (labels), judges (criteria), evals and deploy gates, fine-tuning and reinforcement learning, dedicated GPU endpoints, and model aliases and versions. Authenticated with a workspace API key (sk_sovereign_...). The inference API (chat, embeddings, rerank, responses) is OpenAI-compatible and documented separately. Responses are snake_case, list endpoints on the loop products use the {"object": "list", "data": [...]} envelope, and refusals use the same nested error shape the gateway emits: {"error": {"message", "type", "code"}}. Request bodies on the loop products (logs, labels, criteria, evals, datasets, aliases) are snake_case; the training and infrastructure products (fine-tuning, GRPO, environment tools, dedicated, model-version adoption) validate camelCase bodies, and each schema below says which it is. Endpoints that spend money require a key minted by a workspace owner or admin and return 403 otherwise. version: 1.0.0 servers: - url: https://gateway.errorbar.ai description: Production - url: https://www.errorbar.ai/api description: Control plane (also served at this base URL) security: - bearerAuth: [] paths: /v1/evals/{id}/evidence: get: tags: - Evals summary: Get an evidence bundle description: >- Download the forwardable proof bundle for a DONE eval run — verdict, frozen judge calibration and certificate, per-sample verdict lineage, refusal ledger events and an audit hash-chain attestation, optionally with the embedded CI-gate decision — so a customer can hand a reviewer or auditor one signed JSON that links claim to instrument to data. 404 for a run outside this key's workspace. 412 {code:"precondition_failed"} for any run that is not DONE (PENDING/RUNNING/ERROR/CANCELLED) — fail closed like the gate; poll until DONE. with_content silently degrades (never errors) when request logging is off. Read-only, no spend. operationId: getEvalEvidence parameters: - name: id in: path required: true schema: type: string description: Identifier. - name: with_content in: query schema: type: boolean description: >- Pass the literal string "true" to include sampled prompts and generated answers in samples.lineage. Honoured only when the workspace has request logging (content storage) enabled; otherwise lineage stays ids/verdicts only and content.reason explains why. - name: min_win_rate in: query schema: type: number description: >- 0..1. Embed the same gate evaluation as GET /v1/evals/{id}/gate: every candidate's win-rate CI lower bound must clear this. Values outside 0..1 or non-numeric are ignored. - name: min_pass_rate in: query schema: type: number description: >- 0..1. Criterion runs: corrected pass-rate CI lower bound (observed CI when the judge is unvalidated) must clear this. - name: min_assertion_pass_rate in: query schema: type: number description: 0..1. Exact all-assertions pass rate must clear this. - name: noninferiority_margin in: query schema: type: number description: 0..1. The certified switch test (see get_eval_gate). - name: model in: query schema: type: string description: Restrict the embedded gate checks to one arm/model key. responses: '200': description: >- 200 bundle (snake_cased): {signature|null, unsigned?:true (when no signing secret is configured), bundle_v:1, generated_at, run:{id, workspace_id, name, eval_kind, status:"DONE", created_at, sample_count, baseline_model, candidate_models, judge_model, rubric_type, sample_filters, assertions}, results (verdict verbatim), gate:{params, verdict}|null (only when at least one gate param was given), instrument:{judge_model, judge_prompt, criterion_snapshot, certificate|null, note|null}, samples:{count, note, lineage:[{sample id, every verdict with the ordering that measured it ("ab"/"ba" pairwise halves, "abs" absolute, "sim" screening similarity), prompt/answers only with with_content}]}, content:{included, reason}, refusals:{window_days, scope, count, complete, events:[{kind, subject, reason, created_at}]}, attestation:{ok, checked_rows, head_seq, problems:[{seq, kind, detail}], acknowledged, window:{since, until, from_seq}|null, chain_head:{seq, last_hash}|null, statement}}. content: application/json: schema: type: object '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' components: responses: BadRequest: description: Malformed request or invalid field. content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: Missing, malformed, or revoked API key. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: message: Invalid API key type: invalid_request_error code: invalid_api_key NotFound: description: The resource does not exist in your workspace. content: application/json: schema: $ref: '#/components/schemas/Error' schemas: Error: type: object properties: error: type: object properties: message: type: string type: type: string description: >- invalid_request_error, insufficient_quota, rate_limit_error, or api_error. code: type: string description: >- Machine-stable cause, e.g. invalid_api_key, not_found, insufficient_permissions, precondition_failed. required: - message - type - code description: >- Every refusal — gateway and management API alike — uses this one envelope. securitySchemes: bearerAuth: type: http scheme: bearer description: >- Your workspace API key, e.g. `sk_sovereign_...`, sent as `Authorization: Bearer `. ````