---
title: "Verify a batch of artifacts"
method: POST
path: "/v1/verify/batch"
tags: ["Verify"]
---

# Verify a batch of artifacts

`POST /v1/verify/batch`

## Request

- Base URL: `https://api.farofinance.app`
- URL: `https://api.farofinance.app/v1/verify/batch`
- Auth: none declared

Fan up to 50 artifacts through the same verify engine with bounded concurrency. Small batches (≤10) answer inline; larger ones run asynchronously — the 202 response carries a `job_id` to poll at `GET /v1/verify/batch/{job_id}`. Supports `Idempotency-Key`: a replay with the same key and body returns the original outcome. Per-item failures degrade to error entries; they never fail the batch.

## Request body

- BatchIn
  - `items` BatchItemIn[], required: Artifacts to verify.
    - `type` 'url' | 'payee' | 'message' | 'document', required
    - `value` string, required
    - `region` string, nullable: Optional ISO 3166-1 alpha-2 region hint for this item.
  - `mode` 'auto' | 'sync' | 'async': auto: small batches answer inline, larger ones run as a job; sync: force inline (small batches only); async: always run as a job.

## Response `200`

Successful Response

- BatchOut
  - `status` 'completed' | 'running', required
  - `job_id` string, nullable: Set for async batches — poll GET /v1/verify/batch/{job_id}.
  - `poll` string, nullable
  - `results` BatchItemOut[], nullable
    - `index` integer, required
    - `status` 'ok' | 'error', required
    - `result` VerdictResult: The single verdict object returned by every verify endpoint and SDK method.
      - `verdict` 'green' | 'yellow' | 'red', required
      - `confidence` number, required: Calibrated confidence in the verdict (honest about data completeness).
      - `artifact` Artifact, required
        - `type` 'url' | 'payee' | 'message' | 'document', required
        - `value` string, required: The normalized artifact string that was checked.
      - `reason` string, required: One plain-language line explaining the verdict — always present.
      - `recommended_action` 'allow' | 'warn' | 'block' | 'review', required
      - `signals` Signal[]: Evidence behind the verdict — deterministic checks, enrichment, reputation.
        - `name` string, required: Machine-readable signal id, e.g. `domain_age_days`.
        - `severity` 'info' | 'low' | 'medium' | 'high' | 'critical', required
        - `detail` string, required: Human-readable explanation of what was found.
        - `source` string, required: Integration that produced the signal, e.g. `safe_browsing`.
      - `explanation` string, nullable: Optional longer context (e.g. session repeat-check notes).
      - `request_id` string, required: Unique id for this request (also in the `X-Request-ID` response header).
      - `cached` boolean: True when served from the verdict cache (`X-Faro-Cache: hit`).
      - `first_seen` string, date-time, nullable: When Faro first saw this normalized node in the reputation graph.
      - `checked_at` string, date-time, nullable: When this verdict was computed.
    - `receipt_id` string, nullable
    - `error` string, nullable

## Other responses

- `202`: Batch accepted and running asynchronously.
- `401`: Missing or invalid API key.
- `409`: Idempotency-Key reused with a different body.
- `422`: Request body failed validation.
- `429`: Rate limit exceeded — slow down.

---

[API](https://skmtc.dev/farofinance/apis/faro.md) · [All operations](https://skmtc.dev/farofinance/apis/faro/llms.txt) · [OpenAPI document](https://skmtc.dev/farofinance/apis/faro/revisions/205cdf54420b?raw)