web3ctx
Version-true web3 docs, ABIs and human-validated integration recipes over MCP.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"web3ctx": {
"url": "https://mcp.scarai.xyz/mcp"
}
}
}Remote endpoints
https://mcp.scarai.xyz/mcpstreamable-httpWhat it can do
Tool inventory
Tools (5)
🟢web3_lookup(kind, id, chain, project, version)
Typed records by id: address, ABI, EIP. Does not search prose or rank.
Input Schema
{
"type": "object",
"properties": {
"kind": {
"type": "string",
"enum": [
"address",
"abi",
"eip"
]
},
"id": {
"type": "string"
},
"chain": {
"type": "string"
},
"project": {
"type": "string"
},
"version": {
"type": "string"
}
},
"required": [
"kind",
"id"
],
"additionalProperties": false
}🟢web3_grep(pattern, project, version, limit)
Exact lexical match on a known identifier. Does not rank semantically.
Input Schema
{
"type": "object",
"properties": {
"pattern": {
"type": "string"
},
"project": {
"type": "string"
},
"version": {
"type": "string"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 50
}
},
"required": [
"pattern"
],
"additionalProperties": false
}🟢web3_search(query, project, version, intent, limit)
Ranked selectors for a prose query or unknown identifier. Does not return bodies.
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string"
},
"project": {
"type": "string"
},
"version": {
"type": "string"
},
"intent": {
"type": "string",
"enum": [
"integrate",
"implement",
"debug",
"lookup",
"learn"
]
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 20
}
},
"required": [
"query"
],
"additionalProperties": false
}🟢web3_deps(selector, depth, kinds)
Dependency closure around a selector. Does not follow calls across projects.
Input Schema
{
"type": "object",
"properties": {
"selector": {
"type": "string"
},
"depth": {
"type": "integer",
"minimum": 1,
"maximum": 3
},
"kinds": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"selector"
],
"additionalProperties": false
}🟢web3_fetch(selectors, cursor)
Full bodies for selectors you already chose, or the next page of a cursor. Does not discover selectors.
Input Schema
{
"type": "object",
"properties": {
"selectors": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 5
},
"cursor": {
"type": "string"
}
},
"additionalProperties": false
}Community
Evidence