DeFi Shield

69 paid API endpoints selling security intelligence to autonomous AI agents.
Pay per request with USDC via x402 protocol on Base.

11 categories69 endpoints$0.01 - $2.50 per callv3.0.0

DeFi Intelligence (12)

POST/api/defi/contract-riskSmart contract risk scoring, admin detection, deployer analysis$0.50
POST/api/defi/token-intelHolder concentration, whale ID, team wallets, liquidity locks$1.00
POST/api/defi/simulateHoneypot detection, hidden fees, blacklist/pause detection$0.25
POST/api/defi/yield-analysisAPY decomposition, sustainability scoring, wash trading detection$0.75
POST/api/defi/exit-strategyPrice impact, liquidity depth, optimal exit route$0.50
POST/api/defi/il-simulateMonte Carlo impermanent loss simulation (200 scenarios)$1.00
POST/api/defi/whale-alertsLarge transfers, net flow direction, activity scoring$0.50
POST/api/defi/deployer-forensicsContract deployment history, scam flags, reputation$0.75
POST/api/defi/pool-compareSide-by-side pool comparison: APY, TVL, sustainability$0.50
POST/api/defi/approval-scannerDangerous unlimited approvals, revoke recommendations$0.25
POST/api/defi/rug-scoreComposite rug pull score: contract + holders + honeypot + deployer + GoPlus$1.00
POST/api/defi/full-scanComplete token security scan — all analyses in one call$2.50

Safety & Compliance (5)

POST/api/safety/prompt-injectionInstruction overrides, role hijacking, encoded payloads$0.02
POST/api/safety/pii-scanSSNs, credit cards, emails, API keys, private keys$0.02
POST/api/safety/sanctions-checkOFAC SDN fuzzy name matching, risk classification$0.10
POST/api/safety/domain-reputationSPF/DKIM/DMARC, SSL check, reputation scoring$0.05
POST/api/safety/freshness-checkURL staleness detection, cache headers, last modified$0.01

Developer Security (5)

POST/api/dev/package-risknpm CVE lookup, maintainer analysis, download trends$0.10
POST/api/dev/secrets-scanAWS keys, private keys, API tokens, JWTs$0.02
POST/api/dev/query-safetySQL injection detection: UNION, stacked queries$0.02
POST/api/dev/license-checkSPDX license compatibility, copyleft conflicts$0.05
POST/api/dev/diff-impactSemantic diff, breaking change detection$0.05

Wallet Intelligence (6)

POST/api/wallet/profileWallet classification, balance, activity timeline$0.50
POST/api/wallet/riskTrust score, risk flags, behavioral classification$0.75
POST/api/wallet/pnlPer-token profit and loss breakdown$1.00
POST/api/wallet/exposureToken exposure and position aggregation$0.50
POST/api/wallet/copytradingCopy trading signals from wallet activity$0.75
POST/api/wallet/clusterRelated wallet discovery and clustering$0.50

Protocol Intelligence (7)

POST/api/protocol/riskProtocol risk via TVL trend analysis$0.50
POST/api/protocol/tvl-decomposeTVL breakdown by chain$0.50
POST/api/protocol/governance-riskGovernance centralization risk scoring$0.75
POST/api/protocol/compareMulti-protocol side-by-side comparison$0.50
POST/api/protocol/emission-modelToken emission and inflation modeling$0.75
POST/api/protocol/oracle-riskOracle dependency risk assessment$0.50
POST/api/protocol/bridge-riskBridge trust and exploit history$0.50

MEV & Trading (7)

POST/api/mev/riskMEV and sandwich attack probability$0.25
POST/api/mev/optimal-routeOptimal DEX routing across pools$0.50
POST/api/mev/liquidity-depthAggregated liquidity depth analysis$0.25
POST/api/mev/gas-oracleReal-time gas price tiers$0.05
POST/api/mev/mempool-scanMempool and pending transaction scan$0.50
POST/api/mev/price-impactTrade price impact estimation$0.10
POST/api/mev/arb-detectorCross-DEX arbitrage detection$0.75

NFT Intelligence (5)

POST/api/nft/collection-riskCollection risk: wash trading + holder distribution$0.50
POST/api/nft/rarityToken rarity and transfer frequency$0.25
POST/api/nft/wash-detectDetailed wash trading analysis$0.50
POST/api/nft/valuationCollection valuation signals and velocity$0.50
POST/api/nft/trendingTrending collection metrics$0.25

Cross-Chain (5)

POST/api/chain/compareMulti-chain TVL and security comparison$0.25
POST/api/chain/healthChain health, type, and TVL metrics$0.25
POST/api/chain/bridge-quoteBridge trust assessment and details$0.25
POST/api/chain/yieldTop yield opportunities by chain$0.50
POST/api/chain/l2-finalityL2 finality time and rollup type$0.10

Agent-to-Agent Trust (5)

POST/api/trust/agent-verifyAgent wallet verification and trust score$0.25
POST/api/trust/endpoint-auditEndpoint availability and trust audit$0.50
POST/api/trust/service-compareCompare services by trust score$0.50
POST/api/trust/scoreQuick trust score lookup$0.10
POST/api/trust/scam-reportSubmit scam report with trust check$0.25

Data Infrastructure (7)

POST/api/data/abi-decodeDecode transaction calldata$0.10
POST/api/data/contract-abiFetch verified contract ABI$0.10
POST/api/data/token-listToken info from CoinGecko$0.05
POST/api/data/address-labelLabel well-known addresses$0.05
POST/api/data/event-decodeDecode event log topics$0.10
POST/api/data/tx-traceTransaction trace with transfers$0.25
POST/api/data/block-dataBlock data retrieval$0.05

Real-Time Monitoring (5)

POST/api/monitor/positionPosition health alerts$0.25
POST/api/monitor/whaleWhale activity detection$0.50
POST/api/monitor/exploit-alertRecent DeFi exploit feed$0.10
POST/api/monitor/gas-alertGas price threshold alerts$0.05
POST/api/monitor/governance-alertProtocol governance alerts$0.25

How Agents Pay

1. Agent sends POST with x402 payment header

2. x402 facilitator verifies USDC payment on Base

3. Endpoint processes request and returns JSON

4. Payment settles only on successful response

Discovery

GET /api/health # all endpoints + pricing GET /api/analytics # call stats GET /.well-known/ # A2A discovery card agent-card.json GET /api/*/ # free endpoint discovery # with llm_usage_prompt

Quick Start

# Discover all endpoints curl https://defi-shield-hazel.vercel.app/api/health # Free endpoint discovery (every endpoint supports GET) curl https://defi-shield-hazel.vercel.app/api/mev/risk # Paid request (requires x402 payment header) curl -X POST https://defi-shield-hazel.vercel.app/api/defi/contract-risk \ -H "Content-Type: application/json" \ -H "X-PAYMENT: <x402-payment-token>" \ -d '{"address": "0x..."}'

Discovery: /.well-known/agent-card.json | Analytics: /api/analytics