# Oblique Markets Observer-Backed Gateway

> Oblique Markets Observer-Backed Gateway is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.001187/call, status unknown (last checked 2026-09-15).

Routes a task description to one of five allowlisted observer-proven sellers, pays them via a managed float with a transparent 10% margin, and returns a payment reference, delivery result, and gateway receipt

## Facts

- Endpoint: POST https://api.oblique.markets/api/v1/paid/oblique-gateway
- Price: $0.001187/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-observer-backed-gateway-d574878d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wodpDVHDv5Ax1ir0uyWWE

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-observer-backed-gateway-d574878d -d '<json body>'
```

Example prompt: Use the Oblique gateway to find and pay a verified seller for this task: 'find current AI routing services' — I want back the seller chosen, the delivery result, and the full payment receipt showing the margin.

## When to prefer this

Choose this endpoint when you need a single managed call that both selects a verified seller from a curated allowlist and handles micropayment in one step, especially when you want full transparency on the margin and a receipt for the transaction. Prefer this over raw x402 endpoints when you want observer-backed seller vetting, automatic float-based payment, and a unified delivery-plus-receipt response without managing payment flows yourself.

## Known failure modes

- Task string does not match any allowlisted seller's domain — seller selection fails
- Float cap exceeded — upstream payment cannot be made
- Upstream seller is unavailable or times out — no delivery returned
- Malformed or empty task string — request rejected
- Selected seller returns an error — delivery payload is empty or missing

## How this service works

Use when an agent needs oblique gateway. Returns Capped observer-backed gateway over five allowlisted proven sellers; pays selected upstream from a small float, adds a transparent 10% margin, and returns payment reference, delivery and gateway receipt. $0.001187.

## Output

A JSON object containing: the selected seller's ID and name with observed activity notes, a delivery payload with top seller results as of a given date, a gateway receipt showing charged amount, receipt ID, margin percent and atomic values, upstream cost, and an upstream payment reference with amount and float cap details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "task": {
   "type": "string",
   "description": "Task used to select an allowlisted observer-proven seller"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "task": "find current AI routing services",
  "seller": {
   "id": "otto-ai-x402",
   "name": "Otto AI x402",
   "observed": "AI services with settled activity"
  },
  "delivery": {
   "as_of": "2026-07-30",
   "top_sellers": [
    {
     "name": "Otto AI x402",
     "note": "observed seller activity"
    }
   ]
  },
  "protocol": "oblique-gateway.v1",
  "generated_at": "2026-08-26T00:00:00.000Z",
  "gateway_receipt": {
   "charged": "$0.001187",
   "receipt_id": "oblique-gateway:example",
   "margin_atomic": 108,
   "charged_atomic": 1187,
   "margin_percent": 10,
   "observer_as_of": "2026-07-30",
   "upstream_cost_atomic": 1079
  },
  "upstream_payment": {
   "amount": "$0.001079",
   "reference": "oblique-gateway:example",
   "amount_atomic": 1079,
   "float_cap_atomic": 10000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oblique-markets-observer-backed-gateway-d574878d/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)