# AlienProbe LEI Lookup

> AlienProbe LEI Lookup is a paid API for AI agents from lookups.alienprobe.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns a single-fact LEI lookup from a bundled CC0 GLEIF Level 1 snapshot, confirming entity details for a given Legal Entity Identifier or refusing unknown/malformed codes by name.

## Facts

- Endpoint: GET https://lookups.alienprobe.ai/v1/lookup/lei/:lei
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/alienprobe-lei-lookup-f953e677
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G8c_Y6JiFx5BZoAN2KR5S

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability alienprobe-lei-lookup-f953e677
```

Example prompt: Can you look up LEI 5493001KJTIIGC8Y1R12 and tell me what legal entity it belongs to and whether it's currently active?

## When to prefer this

Choose this endpoint when you need a fast, low-cost ($0.005 USDC) single-fact LEI lookup from GLEIF Level 1 data and can tolerate a bounded snapshot (20,000 ACTIVE/ISSUED records). Ideal for spot-checking a known LEI or enriching records one at a time in KYB, compliance, or data enrichment workflows. Prefer this over full GLEIF API access when cost predictability and snapshot reproducibility matter. Not suitable when you need guaranteed global LEI coverage or real-time GLEIF data.

## Known failure modes

- LEI present in Global LEI System but absent from this snapshot (subset of ~20,000 records) — response indicates absence from snapshot, not global invalidity
- Malformed LEI string rejected by name with an explicit error, no guessing
- LEI falls within the ascending sort range of the snapshot but was not included (non-dense range)
- Stale data: snapshot is pinned to 2026-08-15 vintage, so recently issued or lapsed LEIs may differ from live GLEIF
- Rate limiting or payment failure via x402 protocol

## How this service works

single-fact lei lookup. GLEIF Level 1 record by exact LEI: legal name, jurisdiction, entity and registration status, last update. Vintage 2026-09-03, all statuses: 3283992 of 3419883 records admitted; non-Latin-script names (<2 Latin alphanumerics normalized) are absent. A bad check digit, a miss and an unreadable shelf are refused free, by name, never guessed; a miss is from this snapshot only. $0.005 by LEI here; by name or domain use /v1/lookup/who/ at $0.05. Whole bound in the declaration.

## Output

Returns structured single-fact data for the queried LEI from a CC0 GLEIF Level 1 snapshot (vintage 2026-08-15, 20,000 ACTIVE/ISSUED records). Includes entity legal name, LEI status, and registration metadata if the LEI is present in the snapshot. If the LEI is valid but absent from the snapshot, the response explicitly states it is absent from this snapshot (not from the Global LEI System). Malformed or unknown LEIs are refused by name with no guessing.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alienprobe-lei-lookup-f953e677/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lookups.alienprobe.ai](https://www.zero.xyz/host/lookups.alienprobe.ai/llms.txt)