# Australian ABN & ASIC Company Check API with Signed Receipts

**FactStamp** (`agents.factstamp.dev`) provides a deterministic Australian company and ABN verification API and MCP server that reads directly from the [Australian Business Register (ABR)](https://abr.business.gov.au/), [ASIC](https://asic.gov.au/), and the [ACNC charity register](https://www.acnc.gov.au/)—with no LLM in the verdict path. Every call returns a cited verdict (`verified`, `stale`, `contradicted`, or `unknown`), an explicit list of any registers `not_consulted`, and an offline-verifiable **Ed25519-signed receipt** (`factstamp-receipt-v2`). Pricing starts at **US$0.05** per `check_figure` (`entity.abn`), **US$0.10** per `check_entity`, or prepaid AUD Stripe packs (**A$49** _Attested Record_, **A$149** _The Shelf_, **A$249** _Bid Pack_, no GST charged) with zero annual enterprise contracts.

## Try Live Verification (WebMCP-Enabled)

Tool: `factstamp_lookup_au_entity` — Use when an agent or user needs to verify an Australian ABN, ACN, or company name against ABR/ASIC and receive an Ed25519-signed receipt.

Submits: `GET https://agents.factstamp.dev/verify/entity`

- **ABN, ACN, or Company Name:**
- `q` — `text, required`, placeholder `e.g. 51 824 753 556`
- `country` — `hidden`, value `AU`
- **Submit:** Mint Signed AU Receipt

## How FactStamp Compares for Australian Counterparty Checks

| Provider | Pricing Model | Primary Sources | Cryptographic Receipt |
| --- | --- | --- | --- |
| **FactStamp (`agents.factstamp.dev`)** | US$0.05–$0.10/call (x402 USDC) or A$49–A$249 AUD Stripe Pack | ABR ABN Lookup, ASIC, ACNC, GLEIF LEI, DFAT Sanctions | Ed25519 (RFC 8785 JCS) verifiable offline |
| [OpenCorporates](https://opencorporates.com/pricing/) | £2,250/yr+ annual enterprise contract | Global aggregated company records | Unsigned JSON |
| Manual ABR / ASIC PDFs | Free, manual copy-paste | ABR / ASIC web portals | Static PDF, not machine-verifiable |

## API & MCP Quickstart

Test an offline Ed25519 receipt for free at `GET https://agents.factstamp.dev/receipt/selftest` or connect via Streamable HTTP MCP at `POST https://agents.factstamp.dev/mcp`. Full coverage and pricing details are in [pricing.md](https://agents.factstamp.dev/pricing.md) and [llms.txt](https://agents.factstamp.dev/llms.txt).