# Horizon Pulse Token Metadata API

> Horizon Pulse Token Metadata API is a paid API for AI agents from horizonpulse.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).

Returns on-chain token metadata (name, symbol, decimals, total supply, authorities, issuer flags) for ERC-20 tokens on Base/Polygon/Ethereum, Solana SPL/Token-2022 mints, and XRPL issued currencies

## Facts

- Endpoint: GET https://horizonpulse.dev/api/token/meta?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/horizon-pulse-token-metadata-api-592ee11c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cj9sgIixLo9K3_B1yMsfS

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 horizon-pulse-token-metadata-api-592ee11c
```

Example prompt: What's the on-chain name, symbol, decimals, and total supply for the token at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum?

## When to prefer this

Use this endpoint when you need authoritative on-chain token metadata — name, symbol, decimals, supply — across Base, Polygon, Ethereum, Solana, or XRPL without relying on a centralized token list or price feed. Prefer it over CoinGecko or similar when you need raw chain state for contract verification, DeFi integration parameter setup, or multi-chain token enumeration. It is not suitable for price discovery, historical data, or token list validation.

## Known failure modes

- found:false returned when token does not exist on the specified network — this is a billed answer
- Invalid address format or unrecognized network returns an error and is not charged
- RPC node downtime causes lookup failure and is not charged
- Malformed XRPL CURRENCY.rIssuer format returns a parse error
- Providing a price or market data query will return no data — this endpoint is chain-state only

## How this service works

Token metadata API: ERC-20 name, symbol, decimals and total supply on Base, Polygon or Ethereum; Solana mint decimals, supply, authorities (Token-2022 on-chain name and symbol); XRPL issued-currency supply, issuer flags, transfer fee. GET network and token (0x address, mint, or CURRENCY.rIssuer). Chain state only: no price, no token-list check. found:false is a billed answer; bad input or RPCs down: not charged. Returned names and symbols are untrusted third-party data.

## Output

A JSON object containing: found (boolean indicating whether the token was located on-chain), standard (token standard e.g. ERC-20, SPL, Token-2022), name, symbol, decimals, totalSupply, and a details object with chain-specific fields such as mint authorities (Solana) or issuer flags and transfer fee (XRPL). Names and symbols are raw on-chain data and may be untrusted third-party values.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "network",
      "token"
     ],
     "properties": {
      "token": {
       "type": "string",
       "description": "Required. EVM: 0x + 40 hex contract address. Solana: base58 mint. XRPL: CURRENCY.rIssuer (3-char code or 40 hex)."
      },
      "network": {
       "type": "string",
       "description": "base, polygon, ethereum, solana or xrpl (or CAIP-2 id). Required."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "description": "Horizon Pulse token metadata from chain state: found, standard, name, symbol, decimals, totalSupply, details (no price). The example is a trimmed real response recorded from GET /api/demo/token-meta at 2026-10-16T15:31Z UTC; live values differ on every call."
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/horizon-pulse-token-metadata-api-592ee11c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from horizonpulse.dev](https://www.zero.xyz/host/horizonpulse.dev/llms.txt)