modbender FairScale Reputation Skill
Check Solana wallet reputation scores. Free tier: 100 calls/day, no API key needed.
What This Does
FairScale provides reputation scores (0-100) for any Solana wallet based on 50+ on-chain signals. Use it to:
- Check a wallet's trustworthiness before transacting
- Filter wallets for airdrops or whitelists
- Build custom scoring models for your use case
- Add reputation data to your agent's decision-making
API Endpoint
https://x402.fairscale.xyz
No API key required for free tier.
Endpoints
GET /score
Get a wallet's reputation score.
GET https://x402.fairscale.xyz/score?wallet=WALLET_ADDRESS
Response:
{
"wallet": "7xK9...",
"fairscore": 72,
"tier": "gold",
"_meta": {
"remaining_today": 99
}
}
GET /check
Get a risk assessment for a specific transaction amount.
GET https://x402.fairscale.xyz/check?wallet=WALLET_ADDRESS&amount=500
Response:
{
"wallet": "7xK9...",
"fairscore": 72,
"risk_level": "medium",
"recommendation": "proceed_with_caution",
"max_suggested_amount_usd": 1000
}
POST /score/custom
Create custom scoring rules. Requires credits.
POST https://x402.fairscale.xyz/score/custom
Content-Type: application/json
{
"wallet": "WALLET_ADDRESS",
"rules": {
"min_score": 60,
"min_age_days": 90,
"no_rug_history": true
}
}
Response:
{
"wallet": "7xK9...",
"passes": true,
"rule_results": {
"min_score": { "pass": true, "required": 60, "actual": 72 },
"min_age_days": { "pass": true, "required": 90, "actual": 340 },
"no_rug_history": { "pass": true }
}
}
POST /batch
Score multiple wallets at once. Requires credits.
POST https://x402.fairscale.xyz/batch
Content-Type: application/json
{
"wallets": ["wallet1", "wallet2", "wallet3"]
}
Custom Rules
Use these with /score/custom:
| Rule | Type | Example |
|---|---|---|
| min_score | number | "min_score": 60 |
| min_age_days | number | "min_age_days": 90 |
| no_rug_history | boolean | "no_rug_history": true |
| min_transaction_count | number | "min_transaction_count": 100 |
| min_volume_usd | number | "min_volume_usd": 5000 |
| max_burst_ratio | number | "max_burst_ratio": 0.5 |
| min_tier | string | "min_tier": "silver" |
Score Guide
| Score | Tier | Meaning |
|---|---|---|
| 80-100 | Platinum | Highly trusted |
| 60-79 | Gold | Good reputation |
| 40-59 | Silver | Average |
| 0-39 | Bronze | Low trust |
Pricing
| Tier | Limit | Cost |
|---|---|---|
| Free | 100 calls/day | $0 |
| Credits | Unlimited | $0.01/call |
Get Credits
- Send USDC to:
fairAUEuR1SCcHL254Vb3F3XpUWLruJ2a11f6QfANEN - Call
POST /credits/depositwith your wallet and tx signature - Get a session token
- Include
x-session-tokenheader on requests
Examples
Check a wallet:
GET https://x402.fairscale.xyz/score?wallet=7xK9abc...
Check risk for $500 trade:
GET https://x402.fairscale.xyz/check?wallet=7xK9abc...&amount=500
Custom rules for lending:
POST https://x402.fairscale.xyz/score/custom
{
"wallet": "7xK9abc...",
"rules": {
"min_score": 70,
"min_age_days": 180,
"no_rug_history": true
}
}
Monetise This Skill
Build products on top of FairScale:
- Gated access: Charge users to verify their reputation
- Airdrop filtering: Charge projects to filter sybils
- Lending checks: Charge per credit decision
- Premium verification: Offer "FairScale Verified" badges
Your agent can charge users while paying $0.01/call to FairScale.