# ChainFETCH

> Use this tool when you need to access Ethereum blockchain intelligence with AI-powered semantic search and filtering capabilities. ChainFETCH solves problems related to complex blockchain data analysis, providing developers and researchers with precise filtering and natural language query processing. It takes in queries and parameters, and outputs comprehensive JSON data and AI-generated summaries for addresses, transactions, blocks, tokens, and smart contracts.

Canonical page: https://skillsregistry.net/skills/chainfetch  
JSON: https://api.skillsregistry.net/v1/skills/chainfetch

## Description

ChainFETCH MCP server provides AI assistants with access to Ethereum blockchain intelligence through AI-powered semantic search, LLM-guided queries, and comprehensive JSON filtering across addresses, transactions, blocks, tokens, and smart contracts. Built by ChainFETCH using the Model Context Protocol SDK with dual transport support (stdio and HTTP via ngrok), the implementation leverages vector similarity matching for semantic searches, LLaMA 3.2 3B for natural language query processing, and over 150+ searchable parameters per entity type for precise blockchain data filtering. The server includes AI-generated summaries for individual entities and supports both Claude Desktop integration through stdio transport and web-based access through StreamableHTTP, serving developers building DeFi analytics tools, researchers analyzing blockchain patterns, and AI assistants requiring intelligent access to Ethereum data without complex blockchain API management.

## Trust

- **Trust score (0–1):** 1.00
- **Verification tier:** verified
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-09-19

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/chainfetch)
- **Repository:** <https://github.com/chainfetch/chainfetch-mcp-server>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "chainfetch"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/chainfetch` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/chainfetch/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt