web3ctx
by FarseenSh · remote · no sign-in to list tools · v1.0.0 · published by GitHub user FarseenSh
Version-true web3 docs, ABIs and human-validated integration recipes over MCP.
5 tools: 2 change things and 3 only read.
Scanned Oct 21, 2026
- Deletes or cancels0Claude Code: deny
- Can't be undone0Claude Code: ask
- Changes things2Claude Code: ask: see these tools
- Only reads3Claude Code: allow: see these tools
No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.
claude mcp add --transport http web3ctx https://mcp.scarai.xyz/mcpTools
Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.
5 tools
Changes things 2Claude Code: ask
web3_depsDependency closure around a selector.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Dependency closure around a selector. Does not follow calls across projects.
Annotations the server declares
- readOnlyHint: true
web3_grepExact lexical match on a known identifier.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it Exact lexical match on a known identifier. Does not rank semantically.
Annotations the server declares
- readOnlyHint: true
Only reads 3Claude Code: allow
web3_fetchFull bodies for selectors you already chose, or the next page of a cursor.No findings
Why it is in this group
- The name "web3_fetch" says "fetch": a word for reading.
Description, as the server wrote it Full bodies for selectors you already chose, or the next page of a cursor. Does not discover selectors.
Annotations the server declares
- readOnlyHint: true
web3_lookupTyped records by id: address, ABI, EIP.No findings
Why it is in this group
- The name "web3_lookup" says "lookup": a word for reading.
Description, as the server wrote it Typed records by id: address, ABI, EIP. Does not search prose or rank.
Annotations the server declares
- readOnlyHint: true
web3_searchRanked selectors for a prose query or unknown identifier.No findings
Why it is in this group
- The name "web3_search" says "search": a word for reading.
Description, as the server wrote it Ranked selectors for a prose query or unknown identifier. Does not return bodies.
Annotations the server declares
- readOnlyHint: true
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http web3ctx https://mcp.scarai.xyz/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__web3ctx__web3_lookup",
"mcp__web3ctx__web3_search",
"mcp__web3ctx__web3_fetch"
],
"ask": [
"mcp__web3ctx__web3_grep",
"mcp__web3ctx__web3_deps"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as web3ctx. Review it before you use it.