# StablecoinPulse Yield Comparison

> StablecoinPulse Yield Comparison is a paid API for AI agents from stablecoinpulse.theaslangroupllc.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).

Compares effective yields across yield-bearing stablecoins and stablecoin neobank/card products, explicitly labeling GENIUS Act interest-vs-rewards distinctions for each product with live-sourced rates.

## Facts

- Endpoint: GET https://stablecoinpulse.theaslangroupllc.com/api/yield-compare
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoinpulse-yield-comparison-ce4624bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GuDxOK0tLovcyz1MD9UTK

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 stablecoinpulse-yield-comparison-ce4624bb
```

Example prompt: Pull the latest effective-yield comparison across all yield-bearing stablecoins and stablecoin neobank or card products, and make sure each one is labeled with whether it counts as interest or rewards under the GENIUS Act.

## When to prefer this

Use this endpoint when a user needs a side-by-side effective-yield comparison across stablecoin products with explicit GENIUS Act interest-vs-rewards labeling. Prefer this over generic DeFi yield aggregators when regulatory classification under the GENIUS Act matters, or when comparing neobank/card stablecoin products alongside protocol-native yields. Best for compliance-aware yield optimization queries.

## Known failure modes

- Live search unavailable — cached or stale rates returned with staleness warning
- No products found matching filter criteria — empty result set
- Source citation unavailable for one or more rates — partial result with gaps noted
- Rate limit exceeded for underlying search provider — 429 error
- Payment not processed — 402 response requiring USDC payment before data returned

## How this service works

Effective-yield comparison across yield-bearing stablecoins and stablecoin neobank/card products — with the GENIUS Act interest-vs-rewards distinction labeled explicitly for every product. Grounded in live search, every rate cited to source.

## Output

A ranked list of yield-bearing stablecoin and neobank/card products showing current effective yield rates (APY/APR), each explicitly tagged as 'interest' or 'rewards' per GENIUS Act classification, with every rate cited to its live source. Includes product name, issuer, yield mechanism, and regulatory label.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "lang": {
       "type": "string",
       "description": "e.g. en, es, fr, de, ja, zh, ko, pt, ar (default: en; forwarded to the model, not strictly validated)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "products": [
   {
    "name": "Ethena USDe (staked sUSDe)",
    "type": "yield-bearing-stablecoin",
    "advertised_rate": "~8% APY",
    "genius_act_classification": "third-party rewards (asserted exempt)"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoinpulse-yield-comparison-ce4624bb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablecoinpulse.theaslangroupllc.com](https://www.zero.xyz/host/stablecoinpulse.theaslangroupllc.com/llms.txt)