QELT Blockchain

Query and interact with the QELT blockchain (Chain ID 770) via JSON-RPC. Use when asked about blocks, transactions, wallet balances, smart contract calls, ga...

Security Scan

The skill's requirements and runtime instructions are consistent with a JSON-RPC wrapper for the QELT blockchain; nothing in the files requests unrelated credentials or installs arbitrary code, though there are a couple of minor documentation inconsistencies to verify before use.

Purpose & Capability

Name/description match the behavior: SKILL.md shows only JSON‑RPC queries and sending pre‑signed raw transactions to QELT RPC endpoints. The only required binary declared is curl, which is appropriate for the provided curl examples.

Instruction Scope

Instructions are narrowly scoped to JSON‑RPC actions (blocks, txs, balances, logs, sendRaw). They explicitly forbid requesting private keys. Minor issue: some examples use python3 to parse responses but python3 is not listed in required binaries; the skill otherwise stays within its stated purpose and only contacts QELT endpoints.

Install Mechanism

No install spec and no code files — instruction-only skill. That minimizes disk writes and arbitrary code execution risk.

Credentials

No environment variables, secrets, or config paths are requested. The skill does not ask for unrelated credentials.

Persistence & Privilege

always:false and default model invocation settings are used. The skill does not request permanent/global privileges or modify other skills.

Assessment

This skill appears to be an instruction-only JSON‑RPC helper for the QELT chain and is internally consistent. Before installing or invoking it: 1) Verify the RPC endpoints (https://mainnet.qelt.ai, https://testnet.qelt.ai, https://archivem.qelt.ai) are genuine and served over TLS (check certificates and operator reputation). 2) Do not provide private keys or mnemonics — the skill correctly requests pre-signed raw transactions only; always review any raw hex you are about to send. 3) Note a minor doc mismatch: some examples call python3 to parse responses but python3 is not declared as a required binary—ensure your agent environment has python3 (or adapt the examples). 4) Because the skill will make network calls to external RPC endpoints when invoked, treat those requests as external network activity and confirm you trust the QELT infrastructure and owner. If you need higher assurance, run the example curl commands locally yourself first and inspect responses before enabling the skill.

QELT Blockchain Skill

QELT is an enterprise-grade EVM-compatible Layer-1 built on Hyperledger Besu 25.12.0 with QBFT consensus. Immediate finality in 5-second blocks. Zero base fee (~$0.002/tx).

Mainnet: Chain ID 770 · RPC https://mainnet.qelt.ai Testnet: Chain ID 771 · RPC https://testnet.qelt.ai Archive (historical + TRACE): https://archivem.qelt.ai

Safety

• Never request, store, print, or transmit private keys or mnemonics.
• Write operations accept pre-signed raw transactions only (hex starting with 0x).
• For historical/TRACE queries, use https://archivem.qelt.ai.
• Confirm mainnet vs testnet with the user before submitting transactions.
• Do not invent block numbers, hashes, or balances — always fetch live data.

Endpoints

Purpose	URL
Primary RPC (Mainnet)	https://mainnet.qelt.ai
Archive + TRACE (Mainnet)	https://archivem.qelt.ai
Testnet RPC	https://testnet.qelt.ai
Testnet Archive	https://archive.qelt.ai
Block Explorer	https://qeltscan.ai
Indexer API	https://mnindexer.qelt.ai

JSON-RPC Calls

All calls are standard Ethereum JSON-RPC 2.0 POST requests.

Get Latest Block Number

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'

Parse result hex → printf '%d\n' <hex>.

Get Block

# By number (hex): block 1000 = 0x3e8
curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x3e8",true],"id":1}'

# By hash
curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getBlockByHash","params":["0xHASH",true],"id":1}'

Get Balance

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0xADDRESS","latest"],"id":1}'

Divide result (wei, hex) by 10^18 for QELT.

Get Transaction

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getTransactionByHash","params":["0xTX_HASH"],"id":1}'

Get Transaction Receipt

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getTransactionReceipt","params":["0xTX_HASH"],"id":1}'

status: "0x1" = success · status: "0x0" = reverted.

Call Smart Contract (Read-Only)

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0xCONTRACT","data":"0xCALLDATA"},"latest"],"id":1}'

Estimate Gas

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_estimateGas","params":[{"from":"0xFROM","to":"0xTO","data":"0xDATA","value":"0x0"}],"id":1}'

Get Event Logs

Always bound the block range — querying from genesis ("0x0") scans the entire chain and is commonly rate-limited or timed out. Use a recent window (e.g., last 1,000 blocks) and page forward if you need more history.

# First get the current block number
LATEST=$(curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' | python3 -c "import sys,json; print(json.load(sys.stdin)['result'])")

# Then query a bounded recent range (last ~1000 blocks ≈ 83 minutes on QELT)
# Clamp at 0 so the start block is never negative on a low-height chain (e.g. fresh testnet).
FROM_HEX=$(python3 -c "latest=int('$LATEST',16); print(hex(max(0, latest - 1000)))")

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d "{\"jsonrpc\":\"2.0\",\"method\":\"eth_getLogs\",\"params\":[{\"fromBlock\":\"$FROM_HEX\",\"toBlock\":\"latest\",\"address\":\"0xCONTRACT\",\"topics\":[\"0xTOPIC\"]}],\"id\":1}"

For full historical log scans, use https://archivem.qelt.ai and page in chunks of ≤10,000 blocks to avoid timeouts.

Get Contract Code

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xCONTRACT","latest"],"id":1}'

"0x" = EOA · anything longer = deployed contract.

Get Nonce

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0xADDRESS","latest"],"id":1}'

Send Pre-Signed Transaction

⚠️ Write operation — confirm with user before executing.

curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xSIGNED_TX_HEX"],"id":1}'

Returns the transaction hash on success.

Chain Info

# Chain ID
curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'

# Gas price
curl -fsSL -X POST https://mainnet.qelt.ai \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_gasPrice","params":[],"id":1}'

Network Reference

Parameter	Mainnet	Testnet
Chain ID	770 (0x302)	771 (0x303)
RPC	https://mainnet.qelt.ai	https://testnet.qelt.ai
Archive	https://archivem.qelt.ai	https://archive.qelt.ai
Indexer	https://mnindexer.qelt.ai	https://tnindexer.qelt.ai
Block Time	5 seconds	5 seconds
Gas Limit	50,000,000	50,000,000
Base Fee	0	0
EVM	Cancun	Cancun
Testnet Faucet	—	https://testnet.qeltscan.ai/faucet

MetaMask Config (Mainnet)

{
  "chainId": "0x302",
  "chainName": "QELT Mainnet",
  "nativeCurrency": { "name": "QELT", "symbol": "QELT", "decimals": 18 },
  "rpcUrls": ["https://mainnet.qelt.ai"],
  "blockExplorerUrls": ["https://qeltscan.ai"]
}

Common Errors

Error	Cause	Fix
execution reverted	Contract call failed	Check ABI encoding
nonce too low	Stale nonce	Fetch fresh nonce with eth_getTransactionCount
insufficient funds	No QELT for gas	Fund wallet or use testnet faucet
unknown block	Archive query on validator	Use https://archivem.qelt.ai
HTTP 429/503	Rate limited	Exponential backoff