{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_wjmq4hwh228q","handle":"mcp-blockchain","url":"https://wellknown.network/agents/mcp-blockchain","links":{"self":"https://wellknown.network/agents/mcp-blockchain/record.json","html":"https://wellknown.network/agents/mcp-blockchain","markdown":"https://wellknown.network/agents/mcp-blockchain/record.md","api":"https://wellknown.network/api/v1/agents/mcp-blockchain","status":"https://wellknown.network/api/v1/agents/mcp-blockchain/status","claim":"https://wellknown.network/agents/mcp-blockchain/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/mcp-blockchain/claim.json","badge":"https://wellknown.network/agents/mcp-blockchain/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/mcp-blockchain/history","tools":"https://wellknown.network/api/v1/agents/mcp-blockchain/tools"},"ard":{"identifier":"urn:air::server:mcp-blockchain","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"mcp-blockchain","summary":"A production-grade blockchain server built using MCP (Model Context Protocol)","description":"# MCP Blockchain\n\nA production-grade blockchain server built using MCP (Model Context Protocol).\n\n## Features\n\n- Ethereum Address Validator\n- Gas Fee Estimator (Public RPC)\n- Wallet Balance Checker\n- Smart Contract Ownership Checker\n\n## Installation\n\n```bash\nuvx mcp-blockchain\n```\n\n## Usage\n\nAfter installation, you can use the MCP Blockchain server with Claude for Desktop or any other MCP client.\n\n### Configuration\n\nAdd the following to your Claude Desktop configuration (`~/Library/Application Support/Claude/claude_desktop_config.json`):\n\n```json\n{\n    \"mcpServers\": {\n        \"blockchain-tools\": {\n            \"command\": \"mcp-blockchain\"\n        }\n    }\n}\n```\n\n### Available Tools\n\n1. **Ethereum Address Validator**\n   - Validates Ethereum addresses including checksum verification\n\n2. **Gas Fee Estimator**\n   - Gets current gas fees from Ethereum mainnet using public RPC\n   - Shows base fee and gas price in Gwei\n\n3. **Wallet Balance Checker**\n   - Checks ETH balance of any Ethereum address\n\n4. **Smart Contract Ownership Checker**\n   - Verifies if a contract implements the Ownable interface\n   - Retrieves the owner address if available\n\n## Development\n\n```bash\n# Clone the repository\ngit clone https://github.com/rjn32s/mcp-blockchain.git\ncd mcp-blockchain\n\n# Create virtual environment\nuv venv\nsource .venv/bin/activate  # On Windows: .venv\\Scripts\\activate\n\n# Install development dependencies\nuv add -e .\n```\n\n## License\n\nMIT License","publisher":null,"homepage":null,"repository":null,"version":"0.1.1","license":null,"protocols":["mcp"],"tags":["blockchain","ethereum","mcp","web3"],"pricing":null,"endpoints":[{"url":"pypi:mcp-blockchain","type":"package_pypi","auth":null,"probeable":false}],"skills":null,"tools":null,"extra":null,"attribution":{"kind":"pypi","name":"pypi","summary":"pypi","version":"pypi","description":"pypi"}},"derived":{"capabilities":[{"slug":"dev.version-control","name":"Version Control","confidence":1,"provenance":"derived"},{"slug":"finance.markets","name":"Markets & Trading","confidence":1,"provenance":"declared"}],"categories":["dev","finance"],"language":"en"},"observed":{"status":"unknown","statusReason":"Distributed as a package to run locally; no network endpoint to check.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[],"tools":null,"package":{"name":"mcp-blockchain","registry":"pypi","observedAt":"2026-11-03T12:27:59.146Z","publishedAt":"2025-04-13T11:31:22.708988Z","latestVersion":"0.1.1"},"toolSurface":null,"endpointFacts":[]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"pypi","key":"mcp-blockchain","url":"https://pypi.org/project/mcp-blockchain/","firstSeenAt":"2026-09-10T00:24:30.582Z","fetchedAt":"2026-11-03T12:26:52.889Z","normalizedAt":"2026-11-03T12:26:52.889Z"}]},"firstSeenAt":"2026-09-10T00:24:30.582Z","updatedAt":"2026-11-03T12:27:59.146Z"}