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🐴 Gulltoppr

io.github.portdeveloper/gulltoppr · v0.1.2

No registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Can write (some tools are not declared read-only)
Capabilities declared	tools
Tool definitions	12 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Description written by the publisher, not verified

Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.

Connect

streamable-http · https://mcp.gulltoppr.dev/mcp

claude mcp add --transport http gulltoppr https://mcp.gulltoppr.dev/mcp

{
  "mcpServers": {
    "gulltoppr": {
      "url": "https://mcp.gulltoppr.dev/mcp"
    }
  }
}

Tools as reported by the server

list_chains
List viem-backed chain aliases and ids. Use filters to find testnets, default-RPC chains, or a named chain before resolving contracts.
runtime_metrics
Read process-local resolver/rung/RPC counters for smoke checks and reliability dashboards.
lookup_selector
Lookup gulltoppr-proven signatures for a 4-byte function/error selector or 32-byte event topic0. Prefer these over public 4byte guesses.
registry_stats
Read selector commons counts by proof grade and bytecode-match index size.
export_registry
Return the CC0 selector commons as NDJSON. This can be large; prefer lookup_selector for normal agent workflows.
resolve_abi
Resolve a contract's interface from chain + address via a fallback ladder (Etherscan → Sourcify → proxy → heimdall decompile → 4byte). Returns a compact capability manifest (read vs write functions, the 'buttons'), proxy chain, token metadata, and PROVENANCE. ALWAYS read `provenance`: a `decompiled`
read_contract
Call a view/pure function and get the decoded result. No wallet, no cost. Rejects state-mutating functions.
encode_call
Encode a function call to calldata (0x…) without sending anything.
simulate
Simulate a call and return success, gas, decoded return, and best-effort state diff / asset changes / logs. Provide a high-level call (address + function + args) or raw (to + data), never both.
prepare_tx
Prepare a contract WRITE for the user to sign. Returns an UNSIGNED transaction, its simulation, a human-readable summary, safety metadata, warnings, a configured signing deeplink, and an EIP-1193 wallet request when signing is recommended. IMPORTANT: this tool NEVER signs or broadcasts. Present the
decode_tx
Decode what a transaction did: delegated heimdall decode plus `decoded_call` from the resolved target ABI when available. Prefer `decoded_call` for typed function/arg names, and read its provenance.
resolve_name
Resolve an ENS/Basename to an address, or an address to its primary ENS/Basename. Pass chain=base for Basenames.

Repository · JSON · Text for agents · Registry updated 2026-06-12