# Verifiable Random Function Oracle MCP

> Verifiable Random Function Oracle MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-12).

Generates cryptographically verifiable random outputs using a VRF oracle, providing tamper-proof randomness with on-chain or off-chain verifiability.

## Facts

- Endpoint: POST https://api.m2mcent.com/verifiable-random-function-oracle-mcp/api/process?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifiable-random-function-oracle-mcp-9bf8d437
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ctEESTxchNhizGX90o8Qs

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 verifiable-random-function-oracle-mcp-9bf8d437 -d '<json body>'
```

Example prompt: Generate a verifiable random value using the VRF oracle with the input seed 'round-42-lottery-2024' so I can prove the randomness was fair and unbiased.

## When to prefer this

Choose this endpoint when you need randomness that must be publicly auditable and tamper-proof — such as for lotteries, NFT minting, games, or any application where bias-resistance and verifiability are critical. Prefer it over standard random number generators when participants need cryptographic proof that the outcome was not manipulated.

## Known failure modes

- Invalid or empty data input returns an error
- Malformed request body causes 400-level response
- Payment failure via x402 protocol blocks processing
- Oracle unavailability results in 503 or timeout
- Input data exceeding length limits may be rejected

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns a cryptographically verifiable random value derived from the input data, along with a proof or attestation that the randomness was generated honestly and can be independently verified. The response includes the random output and supporting proof material.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifiable-random-function-oracle-mcp-9bf8d437/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)