mcp server
🐴 Gulltoppr
Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.
Description as published by the maintainer. Source
- version 0.1.2
- active
- document understanding
- analytics
active — Registry entry last updated 2026-06-12. Dashed tags are derived by ZBS Index from the published description, not stated by the maintainer.
What this server can do
The endpoint published in the registry did not answer (TimeoutError: request timed out). The listing points at a server that is not running. The functions below are the last successful declaration, not a fresh answer.
Endpoint status observed on . Source: https://mcp.gulltoppr.dev/mcp.
12 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
decode_tx(chain, rpc_url, tx_hash)- 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. Required: chain, tx_hash.
encode_call(args, chain, value, address, rpc_url, function)- Encode a function call to calldata (0x…) without sending anything. Required: chain, address, function.
export_registry- Return the CC0 selector commons as NDJSON. This can be large; prefer lookup_selector for normal agent workflows.
list_chains(q, testnets, has_default_rpc)- List viem-backed chain aliases and ids. Use filters to find testnets, default-RPC chains, or a named chain before resolving contracts.
lookup_selector(selector)- Lookup gulltoppr-proven signatures for a 4-byte function/error selector or 32-byte event topic0. Prefer these over public 4byte guesses. Required: selector.
prepare_tx(args, from, chain, value, address, rpc_url, function)- 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 summary + simulation + warnings to the user. Only hand them the `deeplink` or `wallet_request` when `safety.signing_recommended` is true. If `safety.risk_level` is high or blocked, make that explicit; blocked means do not send. Required: chain, address, function, from.
read_contract(args, chain, address, rpc_url, function)- Call a view/pure function and get the decoded result. No wallet, no cost. Rejects state-mutating functions. Required: chain, address, function.
registry_stats- Read selector commons counts by proof grade and bytecode-match index size.
resolve_abi(chain, address, rpc_url, method_q, method_kind, method_limit)- 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` ABI has synthetic function names — treat it with care and confirm intent before writing. Partial, proxy, and bytecode-match results lead with a WARNING before the JSON. The compact manifest/provenance is also returned as structuredContent. Use method_q/method_kind/method_limit for large ABIs. Raw ABI is omitted from MCP output to save tokens; use REST/SDK resolve_abi with include_abi=true if needed. Required: chain, address.
resolve_name(name, chain)- Resolve an ENS/Basename to an address, or an address to its primary ENS/Basename. Pass chain=base for Basenames. Required: name.
runtime_metrics- Read process-local resolver/rung/RPC counters for smoke checks and reliability dashboards.
simulate(to, args, data, from, chain, value, address, rpc_url, function)- 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. Required: chain, from.
Last successful function declaration observed on . Source: https://mcp.gulltoppr.dev/mcp. We list what the server declared; we do not call any of these functions.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 0.1.2 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-06-12 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-06-12 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 12 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | mcp.gulltoppr.dev | |
| mcp endpoint status | unreachable | The endpoint published in the registry did not answer (TimeoutError: request timed out). The listing points at a server that is not running. | as of probe | mcp.gulltoppr.dev |
Where to get it
This record as data
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GET /api/v1/entries/mcp_server.json