Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Ask natural language questions about Ethereum blockchain data. Covers historical on-chain activity (events, transactions, blocks, token transfers, NFTs), liv...
Ask natural language questions about Ethereum blockchain data. Covers historical on-chain activity (events, transactions, blocks, token transfers, NFTs), liv...
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
Ask a question in plain English. Get a structured analysis backed by live blockchain data β no query language, no SDKs, no index knowledge required. Base URLhttps://agent.onesource.ioAuthHTTP 402 (x402 protocol, no API keys)Price$0.04 USDC per queryNetworksEthereum mainnet Β· Sepolia Β· Avalanche
This is a paid endpoint. Requests without payment receive HTTP 402 with a payment-required header describing the price, network, and recipient. Paid requests include a payment-signature header and are processed normally. Payment uses the x402 protocol β an open standard for HTTP-native payments. The skill itself does not manage wallets or signing; it only returns standard HTTP 402 responses. Payment handling is the responsibility of the calling client or platform.
Queries are sent to https://agent.onesource.io β an external service operated by OneSource. Your natural-language query text and any addresses you include are transmitted. query_traces in the response contains an audit trail of internal data lookups. This may echo parts of your query. Omit it from user-facing output if not needed. No data is stored beyond what is needed to process the request.
5.8 billion+ records across Ethereum mainnet, Sepolia testnet, and Avalanche C-Chain. Events & Activity "How many Transfer events happened in the last 24 hours?" "What events did 0xdead... emit this week?" "Top 10 contracts by event count over the last 30 days" "Show me all Approval events for USDC in the last hour" Transactions "What's the average gas used per transaction on mainnet today?" "How many transactions did 0xabc... send in the last 30 days?" "Show the 5 highest-value transactions in block range 21000000β21001000" "What's the transaction volume trend week over week for the last month?" Blocks "What was the average block time last week?" "Which blocks had the highest gas utilization in the past 24 hours?" "How many blocks were produced per hour yesterday?" Token Transfers (ERC-20 / ERC-721 / ERC-1155) "What ERC-20 tokens did 0xabc... receive in the last month?" "Top 5 ERC-20 tokens by transfer volume this week" "Show all mint events for USDC in the last 7 days" "How many unique wallets received WETH in the last 24 hours?" NFTs "Show me BAYC token #4321 β name, image, and attributes" "What were the last 5 CryptoPunks sales and their prices?" "How many NFTs did 0xabc... receive this month?" "Top 10 NFT collections by transfer count today" Contracts "When was Uniswap V3 deployed and who deployed it?" "How many contracts were deployed on mainnet in the last 7 days?" "Is 0xabc... a contract or an EOA?"
Real-time lookups directly from Ethereum archive nodes β no indexing lag. "What's the current ETH balance of 0xabc...?" "What's the current gas price on mainnet?" "Did transaction 0x123... succeed or revert?" "What's the latest block number right now?" "What's the USDC balance of 0xabc... at the current block?" "How much ETH does Vitalik's address hold?" "What's the current EIP-1559 base fee and priority fee?"
Analyze any deployed contract's bytecode β including unverified contracts β to extract its interface without needing source code. "What functions does 0xabc... expose?" "Decompile 0xabc... and show me the function selectors" "Compare the public functions of these two contracts: 0xabc... and 0xdef..." "Does 0xabc... implement ERC-721?"
Requests are priced per-query at $0.04 USDC via the x402 payment protocol (see Payment above). NetworkAssetSchemeEndpointBaseUSDCexacthttps://agent.onesource.io The usage.estimated_cost_usd field in every response shows exactly what each query cost.
POST / Content-Type: application/json { "query": "string β required. Your natural language question.", "session_id": "string β optional. Custom ULID. Auto-generated if omitted." }
{ "session_id": "01JMQX7K3N...", "status": "completed | error | processing", "summary": "Plain text summary, 1β3 sentences. Present on success.", "response": "Full Markdown analysis with tables, headers, code blocks.", "steps": [ { "agent": "router | opensearch | rpc | evmole", "action": "Description of what was queried", "status": "completed | failed" } ], "usage": { "total_tokens": 5820, "estimated_cost_usd": 0.0018 }, "query_traces": [...], "error": "string | null" } summary β plain text, 1β3 sentences. Display this prominently. response β full Markdown. Render it, don't parse it as structured data. query_traces β raw audit trail of every data query made internally.
CodeMeaningFix402Payment requiredInclude payment-signature header409Session already existsOmit session_id or use a new one422Malformed requestCheck query field is present500Pipeline errorTry rephrasing the query
The agent rejects queries requiring unbounded full-index scans with no filter: "List every transaction ever" "Give me all NFTs" "Show everything in the last year" Add a filter (address, time range, event type, contract) and it works: "List the last 10 transactions from 0xabc..." "Top 10 NFT collections by mint count in the last 24 hours" "How many transactions happened last year?" (aggregation β fine)
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