# CIEL M2M Sybil Evaluator

> CIEL M2M Sybil Evaluator is a paid API for AI agents from 169.58.38.67.sslip.io, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-18).

Evaluates blockchain addresses or accounts for sybil behavior, returning a risk/legitimacy score and related signals.

## Facts

- Endpoint: POST https://169.58.38.67.sslip.io/api/sybil-evaluator
- Price: $0.08/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ciel-m2m-sybil-evaluator-e6078a6c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Lz2awcfAoKDONyrI1EQ57

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 ciel-m2m-sybil-evaluator-e6078a6c -d '<json body>'
```

Example prompt: Can you run a sybil evaluation on wallet address 0x1234abcd...5678 and tell me the risk score and whether it looks like a legitimate organic account or a sybil farming wallet?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call sybil risk assessment for individual blockchain addresses or accounts, especially in airdrop qualification, DeFi access control, or NFT allowlist vetting workflows where sybil resistance is critical. Prefer it over building custom heuristics when you need a fast, standardized signal without operating your own fraud-detection infrastructure.

## Known failure modes

- Missing or malformed 'properties' input field returns a 400 or validation error
- Unrecognized address format may return an empty or inconclusive result
- Payment failure via x402 (insufficient USDC balance) results in a 402 Payment Required response
- Rate limits or marketplace quota exceeded may return a 429 error
- Ambiguous or sparse on-chain data may lead to low-confidence scores

## How this service works

50+ micro-services for AI agents: data parsing, crypto analytics, security scanning, code tools, and more. Pay per call via x402 (USDC on Base) or RapidAPI subscription.

## Output

Returns a JSON object containing a sybil evaluation result, typically including a risk classification or score indicating whether the evaluated account/address exhibits sybil behavior, along with supporting signals or metadata about the assessment.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "data"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ciel-m2m-sybil-evaluator-e6078a6c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 169.58.38.67.sslip.io](https://www.zero.xyz/host/169.58.38.67.sslip.io/llms.txt)