# Tollex USDG Metadata Endpoint

> Tollex USDG Metadata Endpoint is a paid API for AI agents from api.tollex.org, paid per call via x402, $0.0079/call, status unknown (last checked 2026-10-11).

Returns metadata about the USDG stablecoin used for payments on Robinhood Chain within the Tollex economic control plane for autonomous agents.

## Facts

- Endpoint: POST https://api.tollex.org/tools/usdg_metadata?utm_source=zero.xyz
- Price: $0.0079/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tollex-usdg-metadata-endpoint-f019d88d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_crsdz1YkTS6u8ai-I5KBT

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 tollex-usdg-metadata-endpoint-f019d88d -d '<json body>'
```

Example prompt: Can you pull the USDG stablecoin metadata from Tollex so I can configure my agent to make payments on Robinhood Chain?

## When to prefer this

Use this endpoint when you need to programmatically retrieve USDG stablecoin metadata for configuring autonomous agent payments on Robinhood Chain via the Tollex platform. Prefer it over hardcoding token details, or when you need verified on-chain asset information to set up or audit an agent's payment configuration using Tollex's x402-based economic control plane.

## Known failure modes

- Empty request body may return a validation error since the body schema accepts no additional properties
- Network or service unavailability returns a 5xx error
- Invalid bodyType or method enum value results in a 400 schema validation error
- Missing required 'input' wrapper object causes request rejection
- Payment of $0.0078 USDC not fulfilled via x402 results in 402 Payment Required

## How this service works

Tollex lets software agents buy APIs and tools under rules you set: it finds a capability that fits, checks your policy before anything is signed, pays with x402 in USDC on Base or USDG on Robinhood Chain, reconciles uncertain payments and returns a signed receipt.

## Output

Returns structured metadata about the USDG stablecoin used on Robinhood Chain within the Tollex payment system, likely including token name, symbol, contract address, chain identifier, decimals, and other asset configuration details relevant to autonomous agent payment flows.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {},
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "tool",
      "result",
      "evidence"
     ],
     "properties": {
      "tool": {
       "type": "object",
       "properties": {
        "id": {
         "type": "string"
        },
        "version": {
         "type": "string"
        },
        "provider": {
         "type": "string"
        }
       }
      },
      "result": {
       "type": "object",
       "example": {
        "name": "Global Dollar",
        "symbol": "USDG",
        "address": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
        "network": "eip155:4663",
        "decimals": 6,
        "totalSupply": "125000000000000",
        "implementation": null
       },
       "required": [
        "network",
        "address",
        "name",
        "symbol",
        "decimals",
        "totalSupply",
        "implementation"
       ],
       "properties": {
        "name": {
         "type": [
          "string",
          "null"
         ]
        },
        "symbol": {
         "type": [
          "string",
          "null"
         ]
        },
        "address": {
         "type": "string"
        },
        "network": {
         "type": "string"
        },
        "decimals": {
         "type": [
          "integer",
          "null"
         ]
        },
        "totalSupply": {
         "type": [
          "string",
          "null"
         ]
        },
        "implementation": {
         "type": [
          "string",
          "null"
         ]
        }
       }
      },
      "evidence": {
       "type": "array",
       "items": {
        "type": "object"
       },
       "descript
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": {
   "id": "usdg_metadata",
   "version": "1.0.0",
   "provider": "tollex.robinhood-chain"
  },
  "result": {
   "name": "Global Dollar",
   "symbol": "USDG",
   "address": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
   "network": "eip155:4663",
   "decimals": 6,
   "totalSupply": "125000000000000",
   "implementation": null
  },
  "evidence": [],
  "untrustedOutput": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tollex-usdg-metadata-endpoint-f019d88d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tollex.org](https://www.zero.xyz/host/api.tollex.org/llms.txt)