Ask Questions.
Get Answers.
No SQL Required.
Query the Stellar blockchain like you're asking a colleague. Transform natural language into powerful blockchain queries and get instant insights.
Try: "Show me the top 10 XLM holders" or "Recent payments"
How It Works
LumenQuery's query engine bridges the gap between human language and blockchain data.
1. Ask a Question
Type your query in plain English. No need to know table schemas or SQL syntax.
2. We Translate
Our engine parses your intent and generates an optimized query against our real-time Stellar index.
3. Query Blockchain
Execute against indexed Stellar data—transactions, accounts, assets, and more.
4. Get Results
View data as interactive tables, time-series charts, or exportable JSON.
Example Queries
Click any example to try it. LumenQuery understands the questions that matter to blockchain analysts, developers, and operators.
Key Features
Everything you need to explore blockchain data without writing code.
Natural Language → SQL Translation
Our query engine converts your questions into optimized SQL, executed against a fully-indexed Stellar dataset. View the generated SQL anytime—learn as you query.
Real-Time Blockchain Indexing
Data refreshes every 5 seconds. Query the latest ledgers, not stale snapshots. Monitor live transactions and catch network anomalies as they happen.
Interactive Charts & Dashboards
Every result is interactive. Click a wallet to explore its history. Select a time range to zoom in. Build custom views without code.
Export Results via API
Every query generates an API endpoint. Fetch JSON results programmatically, integrate with your data pipelines, or embed live data in your applications.
Multi-Dataset Support
Query across transactions, operations, effects, accounts, assets, trades, and ledgers. Join data naturally—we handle the complexity.
Developer Friendly
LumenQuery is built for developers who want transparency and control.
SQL Visibility
Every query shows its SQL equivalent. Copy, modify, or run raw SQL directly.
API Access
Programmatic access to all query results. Build dashboards, alerts, and automated reports.
Data Pipelines
Export to CSV, JSON, or stream to your data warehouse. Connect to BigQuery, Snowflake, or Postgres.
# Query via APIcurl -X POST "https://lumenquery.io/api/query" \ -H "Content-Type: application/json" \ -d '{"query": "top 10 xlm holders"}'# Response{"success": true,"data": [{"account_id": "GAXJ...7K2F","balance_xlm": "125,430,000","last_active": "3/13/2026, 2:30 PM"}, ...],"executionTimeMs": 142}
Use Cases
From whale tracking to validator analysis, LumenQuery powers critical blockchain insights.
Blockchain Analytics
Answer ad-hoc questions without building custom queries. Explore transaction patterns and validate hypotheses in seconds.
Whale Tracking
Monitor large holders and significant transfers. Set up alerts when major wallets move funds or change trustlines.
Token Ecosystem Monitoring
Track asset distribution, holder counts, trading volume, and issuer activity across any Stellar token.
Validator Performance
Compare validator uptime, transaction throughput, and fee behavior. Identify the most reliable nodes.
Web3 Research
Support due diligence, market research, and competitive analysis with on-demand blockchain data.
Query the Stellar blockchain
in plain English
Stop writing SQL. Start asking questions. Get instant access to the Stellar blockchain's most valuable data—no database expertise required.
Explore live analytics →Query Stellar Without Writing SQL
LumenQuery translates plain-English questions into Stellar Horizon and Soroban RPC calls behind the scenes. You describe what you want to know -- account balances, recent payments, asset activity, contract invocations -- and get structured results in seconds. No SQL, no GraphQL, no custom indexer code. Just ask a question and get an answer.
Example Questions You Can Ask
“Show me the largest XLM payments in the last 24 hours”
Finds and ranks the biggest native XLM transfers across the entire network by amount.
“How many new trustlines were created for USDC this week?”
Counts change_trust operations for the USDC asset over the past 7 days.
“What is the current balance of account GABC...XYZ?”
Returns all balances, trustlines, and account flags for any Stellar address.
“List recent Soroban contract invocations”
Shows the latest invoke_host_function operations with decoded parameters.
“Which assets had the most payment volume today?”
Ranks all Stellar assets by total payment value in the last 24 hours.
“Show failed transactions in the last hour”
Filters for transactions with non-success result codes and surfaces error details.
Query Result Preview
| Question | Example Result |
|---|---|
| Top XLM payments today | Ranked list of large XLM transfers with sender, recipient, and amount |
| Latest USDC payments | Recent USDC payment operations with timestamps and counterparties |
| Active Stellar assets | Assets ranked by transaction activity, holder count, and volume |
| Account activity summary | Payments, balances, operations, and ledger entries for any address |
Sample Query API Response
POST /api/query
{
"query": "Show me the largest XLM payments in the last 24 hours",
"results": [
{ "rank": 1, "amount": "250000.0000000", "asset": "XLM", "from": "GABC...", "to": "GDEF...", "ledger": 63312018 }
]
}Use Cases
Founder Dashboards
Embed live Stellar data into internal tools. Track user adoption, payment volume, and asset distribution without building a custom indexer.
Token Issuer Analytics
Monitor trustline growth, holder distribution, and payment velocity for tokens you have issued on Stellar.
Stablecoin Monitoring
Track USDC, EURC, and other stablecoin flows across exchanges, anchors, and end-user wallets.
Compliance Research
Quickly investigate account history, counterparty relationships, and transaction patterns during audits.
Developer Debugging
Look up transaction results, operation details, and error codes when diagnosing failed Soroban calls or payments.
Transaction Investigations
Trace payment paths, identify circular flows, and examine multi-operation transactions without writing code.
Network Growth Reporting
Generate weekly reports on active accounts, transaction throughput, new trustlines, and fee trends across the network.
From Natural Language to Developer APIs
API Documentation
Full REST API reference and integration guides
Network Analytics
Real-time Stellar network metrics and charts
Live Transaction Viewer
Watch decoded transactions stream in real time
Contract Explorer
Browse Soroban smart contract calls and storage
Pricing Plans
Compare query limits and features by tier
Frequently Asked Questions
What is natural-language blockchain querying?
Natural-language blockchain querying lets you ask questions about on-chain data in plain English instead of writing SQL or building API calls manually. LumenQuery translates your question into the right Horizon and Soroban RPC requests and returns structured results instantly.
Do I need to know SQL to use LumenQuery?
No. LumenQuery is designed for users who want blockchain data without writing SQL, GraphQL, or raw API requests. Just type a question like "Show me the largest XLM payments today" and get results in a readable table.
What Stellar data can I ask about?
You can query transactions, payments, account balances, trustlines, offers, effects, operations, ledger stats, asset issuance data, Soroban contract calls, and more. LumenQuery covers the full scope of data available through Stellar Horizon and Soroban RPC.
Can I export query results?
Yes. Query results can be exported as JSON through the API. CSV export is available on supported plan tiers. You can also integrate query results into your own dashboards and data pipelines using the LumenQuery REST API.
Can developers use this through an API?
Yes. LumenQuery provides a REST API that accepts natural-language queries programmatically. You can integrate it into bots, dashboards, alerting systems, or any application that needs Stellar data without managing Horizon infrastructure.
Is this useful for analytics and monitoring teams?
Absolutely. Analytics teams use LumenQuery to explore Stellar data without waiting for engineering to build custom queries. Monitoring teams use it to quickly investigate transactions, check account states, and verify on-chain activity during incidents.
Start querying the Stellar network in plain English.
Create a free account and ask your first question. No SQL, no infrastructure, no setup required.