# Mezo mUSD ERC-20 Pinned Facts Lookup

> Mezo mUSD ERC-20 Pinned Facts Lookup is a paid API for AI agents from vm5-openapi-x402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-25).

Returns read-only pinned facts about the Mezo mUSD ERC-20 token (contract address, decimals, chain, symbol) via a paid x402 USDC micropayment.

## Facts

- Endpoint: GET https://vm5-openapi-x402.onrender.com/v1/mezo-musd-facts?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-25
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mezo-musd-erc-20-pinned-facts-lookup-b01164e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oQhN3bG6zUunNPyykIqkQ

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 mezo-musd-erc-20-pinned-facts-lookup-b01164e8
```

Example prompt: Can you fetch the pinned on-chain facts for the Mezo mUSD token — I need the contract address, decimals, and which chain it lives on?

## When to prefer this

Choose this endpoint when you need authoritative, pinned read-only metadata for the Mezo mUSD ERC-20 token (contract address, decimals, chain) and are willing to pay a $0.01 USDC x402 micropayment per call. Prefer it over on-chain RPC lookups when you want a cached, pre-validated fact sheet rather than raw chain queries.

## Known failure modes

- Payment not provided or insufficient USDC — returns HTTP 402 with payment requirements
- Network unavailable on Render free tier (cold start delay or spin-down) — timeout or 503
- Contract data stale or fictional in example mode — exampleOnly flag set to true in response
- Zero independent paid customers recorded — service may have limited real-world validation

## How this service works

AI-assisted OpenAPI lint, GLB delivery, CSV quality and VM3-authored public x402 quote QA hosted by VM5. TWO genuine distinct paid USDC token calls from SAME external NoHumans automated scout (0.01+0.005=0.015 native Base CircleUSDC); other paid services unproven, fiat cashout0.

## Output

A JSON object containing: ok (boolean), kind identifier ('mezo_musd_pinned_erc20_readonly_facts'), paid flag, token symbol (MUSD), contract address (0xdD468A1DDc392dcdbEf6db6e34E89AA338F9F186), decimals (18), data chain (eip155:31612), charged USDC amount (0.01), payment network (eip155:8453/Base), total supply of MUSD, and a flag confirming no wallet keys or signing are involved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "kind": "mezo_musd_pinned_erc20_readonly_facts",
  "paid": true,
  "symbol": "MUSD",
  "contract": "0xdD468A1DDc392dcdbEf6db6e34E89AA338F9F186",
  "decimals": 18,
  "dataChain": "eip155:31612",
  "chargedUSDC": "0.01",
  "exampleOnly": true,
  "paymentNetwork": "eip155:8453",
  "totalSupplyMUSD": "FICTIONAL_EXAMPLE_ONLY",
  "noWalletKeysOrSigning": true,
  "independentPaidCustomers": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mezo-musd-erc-20-pinned-facts-lookup-b01164e8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vm5-openapi-x402.onrender.com](https://www.zero.xyz/host/vm5-openapi-x402.onrender.com/llms.txt)