Simulate before you send

<70ms /sim

Simulation, risk scoring, MEV detection, fee optimization, and token screening — one API call, one response.

✅ 100% success rate · <70ms latency · 20K free/mo · Powered by Helius Gatekeeper
Get Started Free Read the Docs
POST /api/v1/solana/tx/simulate
{
  "success": true,
  "risk_level": "safe",
  "mev_score": 0.03,
  "priority_fee": 5000,
  "token_risk": "clean",
  "compute_units": 148230,
  "latency_ms": 68
}
This tx will fail — fix it like this
Catch failures before they cost gas. Get specific fix: add priority fee, raise compute limit, refresh blockhash.
This tx will get sandwiched
MEV detection across 8 DEX programs. Known bot database. Auto-route via Jito when risk is high.
This token is a rug
Mint authority, freeze authority, holder concentration, liquidity checks. Block before you swap.
/simulate — $0.002
Full analysis in <70ms. Risk score, MEV detection, fee optimization, token screening. You decide what to do.
/send — $0.001
Reliable landing. Multi-RPC fallback, auto-retry, Jito routing, confirmation tracking. ~100% landing rate.
/execute — $0.005
Simulate + smart submit in one call. Configurable policy. Auto Jito when MEV is detected. Block what you don't want.
Solana + 7 EVM chains
Why TxShield

Everything you need before hitting submit

Transaction Simulation

Test any Solana or EVM transaction before submitting. Get pass/fail, compute units, and detailed logs in one call.

Fee Optimization

Stop overpaying for priority fees. Get p25/p50/p75/p95 estimates from recent blocks.

Risk Scoring

Every simulation returns a risk level: safe, low, medium, high, or critical. Know what you're sending.

Token Screening

Instant rug-pull detection. Checks mint authority, freeze authority, holder concentration, liquidity.

Batch API

Simulate up to 50 transactions in parallel. Built for trading bots and DEX aggregators.

EVM Support

Simulate on Ethereum, Polygon, Arbitrum, Base, Optimism, Avalanche, and BSC.

Integration

Three steps to safer transactions

1

Submit transaction

Send your serialized transaction to the TxShield API. Base64-encoded, exactly as you would submit it on-chain.

2

Get instant analysis

Simulation result, risk score, fee recommendations, and MEV check — all in one response.

3

Make informed decisions

Proceed with confidence, adjust parameters, or block the transaction entirely. Your call, backed by data.

--
Simulations processed
--ms
Avg latency
100.000%
Success rate
0.5ms
RPC latency (Gatekeeper)
What's in the response

Everything you need, in one call

⚡
Pass / Fail
Full transaction simulation with compute units and detailed logs
🛡
MEV Detection
Scans 8 DEX programs for sandwich bots and known attackers
🎯
Risk Score
5-level classification from safe to critical with detailed breakdown
🔍
Token Screening
Rug-pull detection, mint authority, concentration, liquidity checks
💰
Fee Optimization
Priority fee percentiles (p25/p50/p75/p95) from recent blocks
📈
Slippage Estimate
Expected slippage in basis points based on token liquidity profile
Infrastructure

Built for production trading systems

Real metrics from our production deployment, not marketing estimates.

100.000%
API Success Rate
Zero failed RPC calls across 160K+ requests
0.5ms
State Query Latency
Helius Gatekeeper — 70x faster than standard RPC
Dual-Route
Transaction Submission
Validators + Jito simultaneously via Helius Sender
Metrics from production — April 2026. Infrastructure powered by Helius Gatekeeper + Sender.
Pricing

Pay only for what you use

No fixed plans. No monthly minimums. Start free, scale seamlessly.

Send
$0.001 / call
$1 per 1,000
10,000 free / month
Reliable landing. Multi-RPC fallback, auto-retry, Jito routing, confirmation tracking.
Simulate
$0.002 / call
$2 per 1,000
20,000 free / month
Land your transaction. Staked connections for ~100% landing rate. Optional Jito.
Execute
$0.005 / call
$5 per 1,000
5,000 free / month
Simulate + smart submit. Configurable policy. Auto Jito routing for MEV protection.

All simulation features included free. Paid users unlock MEV bot intelligence. No credit card required to start.

Get Started Free

Estimate your monthly cost

10,000
Estimated monthly cost $27.00

Need custom rules or a dedicated SLA? Contact sales for Enterprise.

Self-Hosted Deployment

Starter
$299/mo
1 instance · Docker
Contact Sales
Pro
$999/mo
3 instances · Helm chart
Contact Sales
Enterprise
$2,499/mo
Unlimited · Dedicated support
Contact Sales

Unlimited simulations. Your data stays on your servers. License key required.

Need MEV Protection?

Paid users get access to our MEV intelligence layer:

🛡️

Sandwich Bot Detection

32+ known bots tracked in real-time across Solana DEXes.

📊

MEV Risk Scoring

Per-transaction MEV exposure analysis with known bot matching.

🔍

Bot Intelligence API

Query our database of known attackers — addresses, attack counts, last seen.

📈

Growing Daily

Our bot database expands automatically from real-world sandwich detections.

Just add a payment method to unlock. All simulation features stay free up to 20,000/month.

Add Payment Method →
Market Intelligence

Real-time Solana market data you can't get anywhere else

Our bots monitor every major DEX pool 24/7, collecting proprietary data on prices, spreads, MEV activity, liquidity depth, and more. Available as an API.

Pool Risk Score
Real-time risk rating per pool. MEV bots, spread volatility, failure rate, slippage — one score.
GET /intel/pool-risk
MEV Threat Map
Which pools have sandwich bots right now. Updated every minute from live simulations.
GET /intel/mev-map
Slippage Predictor
Historical slippage data at multiple trade sizes. More accurate than a single quote.
GET /intel/slippage
Token Launch Feed
New token pools detected within minutes. Liquidity, risk score, DEX — for sniper bots and researchers.
GET /intel/launches
Best Route Advisor
Which DEX is cheapest for this pair right now. Based on real fee data, not listed rates.
GET /intel/best-route
TVL & Rug Alerts
Pool liquidity drops detected in real-time. Early warning for rug-pulls and liquidity removal.
GET /intel/tvl-alerts
View Intel API Docs
FAQ

Frequently asked questions

What chains do you support?
Solana (primary) and 7 EVM chains: Ethereum, Polygon, Arbitrum, Base, Optimism, Avalanche, and BSC. Solana gets full simulation with MEV scoring and token screening. EVM chains support transaction simulation via eth_call with gas estimation and risk scoring.
How fast is the simulation?
TxShield delivers full simulation + risk scoring + MEV detection + token screening in a single API call averaging ~70ms for Solana. That's faster than chaining separate simulation and security APIs (which typically totals 200-300ms). Results are cached for 30 seconds by transaction hash, so repeated submissions return instantly. EVM simulations run in 100-300ms depending on chain congestion.
Can I self-host TxShield?
Yes. TxShield ships as a single binary with Docker and Helm chart deployment options. Self-hosted instances run unlimited simulations with no per-call billing. You bring your own RPC endpoints. Contact sales for licensing.
What is MEV detection?
MEV (Maximal Extractable Value) protection is available to paid users. It includes real-time sandwich bot detection against our database of 32+ known attackers, per-transaction MEV risk scoring, and access to our bot intelligence API. Basic risk scoring is included for all users.
Do you store my transaction data?
Simulation requests are logged for your usage analytics and history features, accessible only to your account. Cached simulation results expire after 30 seconds. You can delete your simulation history at any time from the dashboard. Self-hosted deployments keep all data on your infrastructure.
Is there a free tier?
Yes. Every account gets 20,000 simulation calls per month for free, covering both Solana and EVM chains. Free tier includes simulation, risk scoring, token screening, fee estimation, slippage estimation, batch API, and webhooks. MEV bot intelligence (known bot detection, bot database API) requires a paid plan. No credit card required to start.

Stop guessing. Start simulating.

Sign up, grab your API key, and make your first simulation call. No credit card, no sales call.

Get Started Free Contact Sales