# Oblique Markets x402 Bazaar Catalogue Delta

> Oblique Markets x402 Bazaar Catalogue Delta is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns a day-over-day diff of the x402 Bazaar catalogue: counts and samples of added, removed, and price-changed listings between the two most recent daily snapshots.

## Facts

- Endpoint: GET https://api.oblique.markets/api/v1/paid/bazaar-delta
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/oblique-markets-x402-bazaar-catalogue-delta-d4ea9ffb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YQJKALOYvHtogZuPN2qSw

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 oblique-markets-x402-bazaar-catalogue-delta-d4ea9ffb
```

Example prompt: What changed in the x402 Bazaar catalogue since yesterday — how many new listings were added, which ones were removed, and did any prices change?

## When to prefer this

Use this endpoint when you need a lightweight, pre-computed diff between catalogue snapshots rather than fetching and comparing two full catalogues yourself. Ideal for monitoring pipelines, daily digest agents, or any workflow that only needs to know what changed rather than the full current state of the Bazaar.

## Known failure modes

- Snapshot not yet generated for today — delta may be stale or missing if the daily job hasn't run
- Payment failure (x402 $0.004 USDC not settled) returns 402 Payment Required
- No changes between snapshots returns empty diff arrays (not an error)
- Upstream snapshot storage unavailable returns 5xx

## How this service works

Use when an agent needs bazaar delta. Returns x402 Bazaar day-over-day catalogue diff between the two latest daily full-catalogue snapshots: counts and samples of added resources, removed resources, and price changes (from/to atomic amounts). $0.004.

## Output

A structured diff object containing: counts of added and removed resources, sample entries for each change category, and price-change records with from/to atomic USDC amounts — all derived from comparing the two most recent daily full-catalogue snapshots.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "added": {
   "count": 37,
   "sample": [
    "https://api.fastsearch.example.com/x402/query",
    "https://feeds.chaindata.example.io/prices/latest"
   ]
  },
  "as_of": "2026-08-10",
  "removed": {
   "count": 21,
   "sample": [
    "https://old.defunct-service.example.net/api/v1/data"
   ]
  },
  "compared_to": "2026-08-09",
  "generated_at": "2026-08-10T12:00:00.000Z",
  "price_changed": {
   "count": 14,
   "sample": [
    {
     "resource": "https://api.imagegen.example.ai/generate",
     "to_atomic": "25000",
     "from_atomic": "10000"
    },
    {
     "resource": "https://api.tokenfeed.example.io/quote",
     "to_atomic": "2000",
     "from_atomic": "5000"
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oblique-markets-x402-bazaar-catalogue-delta-d4ea9ffb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.oblique.markets](https://www.zero.xyz/host/api.oblique.markets/llms.txt)