# Loyal Spark - List Marketplace Offers

> Loyal Spark - List Marketplace Offers is a paid API for AI agents from api.loyalspark.online, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns available peer-to-peer loyalty token offers listed on the Loyal Spark onchain marketplace for browsing and trading

## Facts

- Endpoint: POST https://api.loyalspark.online/x402-gateway/mcp-tools/list_marketplace_offers
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/loyal-spark-list-marketplace-offers-5b5f530b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fVk7mQ5aAm6WLHfwud-Vj

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 loyal-spark-list-marketplace-offers-5b5f530b -d '<json body>'
```

Example prompt: Show me all the current loyalty token offers available on the Loyal Spark marketplace — I want to see what ERC-20 reward tokens are listed for P2P trading right now so I can find the best deal.

## When to prefer this

Use this endpoint when an AI agent or user needs to discover and browse currently available peer-to-peer loyalty token trade offers on the Loyal Spark marketplace, particularly before initiating a trade or redemption. Prefer this over wallet-balance or token-earning endpoints when the goal is to find secondary market listings rather than earn new tokens directly.

## Known failure modes

- Payment of $0.01 USDC not provided or rejected — returns 402 Payment Required
- No active marketplace offers exist — returns empty list
- Invalid filter parameters — returns 400 Bad Request
- Onchain Base L2 node unavailable — returns 503 Service Unavailable
- Rate limiting exceeded — returns 429 Too Many Requests

## How this service works

Onchain loyalty protocol on Base L2. Launch B20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.

## Output

A JSON list of active marketplace offers on Loyal Spark, including details about each P2P listing such as token type, quantity, price, seller, and offer status for onchain loyalty ERC-20 tokens on Base L2.

## Example request

```json
{
 "id": 1,
 "method": "tools/call",
 "params": {
  "name": "get_platform_info",
  "arguments": {}
 },
 "jsonrpc": "2.0"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "toolName",
    "inputSchema"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "mcp"
    },
    "example": {
     "type": "object"
    },
    "toolName": {
     "type": "string"
    },
    "transport": {
     "enum": [
      "streamable-http",
      "sse"
     ],
     "type": "string"
    },
    "description": {
     "type": "string"
    },
    "inputSchema": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/loyal-spark-list-marketplace-offers-5b5f530b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.loyalspark.online](https://www.zero.xyz/host/api.loyalspark.online/llms.txt)