Pay-per-call
Web3 Intelligence
11 production APIs for autonomous agents. No keys, no subscriptions. USDC micropayments via x402 on Base. Every verdict is Ed25519-signed — verifiable on-chain.
11
Live APIs
$0.002
Starting price
Ed25519
All signed
Base
USDC payment
Security & Risk
🛡️
Contract Safety Check
svc_contract_guard
$0.005
/ call
~300ms
Audits any EVM contract: proxy slots, owner privileges, Sourcify source check, bytecode red flags. Verdict: safe / review / dangerous.
Input
POST https://pay.hergertsynthora.com/service
"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
🔍
Token Launch Risk
svc_token_risk
$0.10
/ call
~8s
Honeypot detection via sell simulation, bytecode scan for blacklist/mint/selfdestruct, owner renounce. Verdict: safe / caution / risky / rug_pull.
Input
POST https://tokenrisk.hergertsynthora.com/service
"0x<token_address>"
🪪
Wallet Reputation Score
svc_wallet_rep
$0.02
/ call
~2.5s
Score 0-100 for any EVM wallet: OFAC check, tx history, contract vs EOA, MEV patterns. Tier: clean / suspicious / blacklisted.
Input
POST https://walletrep.hergertsynthora.com/service
{"address":"0x..","chain":"base"}
⚡
MEV Exposure Detector
svc_mev_detector
$0.03
/ call
~3s
Detects sandwich attacks, frontrunning, and backrunning on DEX swaps by scanning block-adjacent transactions. Signal: no_swap / swap_exposed / sandwich.
Input
POST https://mevdetector.hergertsynthora.com/service
{"tx_hash":"0x..","chain":"base"}
DeFi Intelligence
🧠
Tx Intent Classifier
svc_tx_intent
$0.01
/ call
~500ms
Decodes the real intent of any on-chain transaction: approve, swap, transfer, mint, deploy. Flags unlimited approvals, opaque selectors, reverted txs.
Input
POST https://txintent.hergertsynthora.com/service
{"tx_hash":"0x..","chain":"base"}
📊
DeFi Strategy Verdict
svc_defi_verdict
$0.05
/ call
~3.5s
Evaluates any yield/LP/staking strategy: APY sustainability, TVL depth, IL risk, contract check. Verdict: execute / monitor / avoid.
Input
POST https://defiverdict.hergertsynthora.com/service
{"protocol":"Aave","apy_pct":12.5,"tvl_usd":5000000,
"pool_address":"0x..","duration_days":30}
💊
Liquidation Risk Signal
svc_liquidation_risk
$0.02
/ call
~1.5s
Real-time Aave v3 health factor for any wallet on Base/Ethereum. Signal: safe → watch → alert → liquidation_imminent → liquidation_now.
Input
POST https://liqrisk.hergertsynthora.com/service
{"address":"0x..","chain":"base"}
AI & Compute
🤖
Multi-LLM Code Audit
svc_code_audit
$0.50
/ call
~12s
3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper. Severity: clean/low/medium/high/critical. Publishable on-chain.
Input
POST https://codeaudit.hergertsynthora.com/service
{"source":"pragma solidity 0.8...","language":"solidity"}
// or: {"address":"0x..","chain":"base"} for Sourcify-verified
📜
Agent Capability Attestation
svc_agent_attest
$0.20
/ call
~8s
SYNTHORA's 11-LLM jury evaluates an agent's declared capabilities against real sample outputs. Returns reliability score + trust tier. Publishable on-chain.
Input
POST https://agentattest.hergertsynthora.com/service
{"name":"myAgent","claimed_capabilities":["translate"],
"sample_outputs":["Hola = Hello"]}
⚙️
Inference Router
svc_inference
$0.002
/ call
~3s
Multi-LLM routing with automatic fallback: Groq → SambaNova → Cerebras → DeepSeek. No API keys to manage. Pay-per-prompt.
Input
POST https://inference.hergertsynthora.com/service
{"prompt":"Your question","system":"optional","max_tokens":200}
How to call any API (x402 protocol)
01
GET the challenge
POST to the endpoint → receive HTTP 402 with x402 payment requirements (USDC on Base, payTo address, amount).
02
Sign & pay
Use any x402 client (agentcash, coinbase AgentKit, custom) to sign the EIP-3009 authorization and include the header.
03
Receive verdict
HTTP 200 with JSON result + Ed25519 signature in headers. Attach the signature to your on-chain transaction as proof.
04
Verify on-chain
The Ed25519 public key is published. Any verifier can confirm the verdict came from SYNTHORA without trusting us.
Quick test (requires x402 client)
curl -X POST https://walletrep.hergertsynthora.com/service \
-H "Content-Type: application/json" \
-d '"'"'0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'"'"'
# → HTTP 402 with payment instructions