web3ctx is a remote MCP server that gives an AI agent 5 tools, among them web3_deps, web3_fetch, web3_grep. It answers at https://mcp.scarai.xyz/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 19 October 2026, succeeded.
Version-true web3 docs, ABIs and human-validated integration recipes over MCP.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
web3_deps | Dependency closure around a selector. Does not follow calls across projects. Inputs: selector, depth, kinds |
web3_fetch | Full bodies for selectors you already chose. Does not discover selectors. Inputs: selectors, cursor |
web3_grep | Exact lexical match on a known identifier. Does not rank semantically. Inputs: pattern, project, version, limit |
web3_lookup | Typed records by id: address, ABI, EIP. Does not search prose or rank. Inputs: kind, id, chain, project, version |
web3_search | Ranked selectors for a prose query or unknown identifier. Does not return bodies. Inputs: query, project, version, intent, limit |
Every block below points at https://mcp.scarai.xyz/mcp. Pick your client and copy.
claude mcp add --transport http web3ctx https://mcp.scarai.xyz/mcp
{
"mcpServers": {
"web3ctx": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.scarai.xyz/mcp"]
}
}
}{
"mcpServers": {
"web3ctx": {
"url": "https://mcp.scarai.xyz/mcp"
}
}
}{
"servers": {
"web3ctx": {
"type": "http",
"url": "https://mcp.scarai.xyz/mcp"
}
}
}{
"context_servers": {
"web3ctx": {
"url": "https://mcp.scarai.xyz/mcp"
}
}
}{
"mcpServers": {
"web3ctx": {
"serverUrl": "https://mcp.scarai.xyz/mcp"
}
}
}{
"mcpServers": {
"web3ctx": {
"url": "https://mcp.scarai.xyz/mcp"
}
}
}name: web3ctx
version: 0.0.1
schema: v1
mcpServers:
- name: web3ctx
type: streamable-http
url: https://mcp.scarai.xyz/mcp{
"mcpServers": {
"web3ctx": {
"httpUrl": "https://mcp.scarai.xyz/mcp"
}
}
}{
"mcpServers": {
"web3ctx": {
"type": "http",
"url": "https://mcp.scarai.xyz/mcp"
}
}
}{
"mcpServers": {
"web3ctx": {
"url": "https://mcp.scarai.xyz/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.scarai.xyz%2Fmcp&type=streamable_http&id=web3ctx&name=web3ctx
It answered our last check on 19 October 2026 in 239 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
5, as returned by the server's own tools/list on 12 September 2026: web3_deps, web3_fetch, web3_grep, web3_lookup, web3_search.
It answered our last check on 19 October 2026 in 239 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.scarai.xyz/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.farseensh. Endpoint host: mcp.scarai.xyz. ARD identifier: urn:air:io.github.farseensh:mcp:web3ctx.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.