# Assay Systems — The Extract (Ottawa Government Market)

> Assay Systems — The Extract (Ottawa Government Market) is a paid API for AI agents from assay-systems.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Returns a computed document summarizing a single company's presence in the Ottawa/Canadian public government contract register for a given industry sector.

## Facts

- Endpoint: GET https://assay-systems.com/api/v1/ending?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/assay-systems-the-extract-ottawa-government-market-9d753aed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Zc7oabBEGLOlZvkzsjFgV

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 assay-systems-the-extract-ottawa-government-market-9d753aed
```

Example prompt: Pull the government market extract for Paladin Labs in Canada — I want to see their full public contract history from the Canadian procurement register.

## When to prefer this

Use this endpoint when you need a pre-computed, sector-aware government market profile for a specific company based on Canadian public procurement data — particularly useful for competitive intelligence, vendor due diligence, or sector analysis in the Ottawa government market. Prefer this over raw procurement database queries when you want a single synthesized document rather than raw contract records.

## Known failure modes

- Missing required 'line' (company identifier) returns a validation error
- Missing required 'country' returns a validation error
- Company not found in the public contract register returns an empty or minimal data object
- Invalid 'before' date format may cause a parse error or be ignored
- Rate limiting or payment failure (x402) if USDC payment is not completed

## How this service works

The government market in your sector. One document about one company, computed from the public contract register.

## Output

A structured data object containing a computed document about the specified company's activity in the Canadian public government contract register — including contract awards, values, departments, and sector-level market presence derived from public procurement data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "line",
  "country"
 ],
 "properties": {
  "line": {
   "type": "string"
  },
  "before": {
   "type": "string"
  },
  "country": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/assay-systems-the-extract-ottawa-government-market-9d753aed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from assay-systems.com](https://www.zero.xyz/host/assay-systems.com/llms.txt)