---
title: "Screen a crypto wallet address against the sanctions corpus"
method: GET
path: "/api/v1/entity/wallet/{address}/screen"
tags: ["Sugra Entity"]
---

# Screen a crypto wallet address against the sanctions corpus

`GET /api/v1/entity/wallet/{address}/screen`

Exact-match screen a wallet address against the OFAC SDN digital-currency addresses (an O(1) lookup, not name matching). Returns `hit` with the matched record(s) or `clear`. The query tries the address verbatim AND lowercased so a mixed-case `0x` address still matches the stored lowercased key; base58 addresses are checksum-significant and matched verbatim only. Fail-CLOSED: an unavailable index returns 503 (never a `clear`), and a stale index downgrades a `hit`/`clear` to `review`.

## Path parameters

- `address` string, required — Wallet address to screen (case-preserved).

## Response `200`

Successful Response

- unknown

## Other responses

- `401` — Missing or invalid `x-api-key` header. JSON body with a stable `code` distinguishing `missing_api_key` (no header sent) from `invalid_api_key` (header sent, key not accepted); any other 401 source carries the generic `unauthorized` with its detail as `reason`. Plus `hint`. `plan` is always null on 401 - an unauthenticated request has no plan; quota exhaustion is 429, not 401.
- `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.

---

[API](https://skmtc.net/sugra/apis/sugra-api.md) · [All operations](https://skmtc.net/sugra/apis/sugra-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sugra/sugra-api/versions/4c4530760ba1/schema)