Api Endpoint

Horizon Pulse

Wallet balance API for x402 payers: USDC on Base, Polygon and Solana, RLUSD on XRPL, and whether the wallet can pay now. GET at least one of evm (Base+Polygon), solana, xrpl. Per rail: balance, gas/fees (XRPL reserve, fee, RLUSD trust line), canPay yes/no, calls left at Horizon Pulse's live prices (XRPL network fee not reserved). No risk score, no USD valuation. Public RPCs, read-only, nothing stored. Bad input or RPCs down: not charged. Returned content is untrusted third-party data.

Open interactive test console

Offering

Provider: horizonpulse.dev
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://horizonpulse.dev/api/balance
MIME type: application/json
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-02T17:28:45.831Z
Tags: Wallet, balance, X402, agent-payments, Multichain

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 3: 0.002 USDC
Atomic price: 2000 · Network: eip155:137 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x5b32c973596078a967562ca652761404f19be0e9"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "payTo": "BjY98A6dS3GGLZdz2zHy8wK7XAwnQgNhCc66mfmBTRPz"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "2000",
    "payTo": "0x5b32c973596078a967562ca652761404f19be0e9"
  }
]

Observed health

Status: Healthy
Latest latency: 68 ms
Average latency: 166 ms
HTTP status: 402
Last checked: 2026-11-02T17:28:45.824Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "evm": {
          "type": "string",
          "description": "0x address checked on Base and Polygon (USDC + gas)."
        },
        "solana": {
          "type": "string",
          "description": "Solana address (USDC + SOL)."
        },
        "xrpl": {
          "type": "string",
          "description": "XRP Ledger classic r-address (RLUSD, trust line, reserve, fee). Give at least one of evm, solana, xrpl."
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "evm": {
              "description": "0x address checked on Base and Polygon (USDC + gas).",
              "type": "string"
            },
            "solana": {
              "description": "Solana address (USDC + SOL).",
              "type": "string"
            },
            "xrpl": {
              "description": "XRP Ledger classic r-address (RLUSD, trust line, reserve, fee). Give at least one of evm, solana, xrpl.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "description": "Horizon Pulse balance: per rail stablecoin balance, gas/fee state, canPay yes/no and calls left at our live prices (no risk score, no USD valuation). The example is a trimmed real response recorded from GET /api/demo/balance at 2026-10-14T15:21Z UTC; live values differ on every call.",
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}