Gexno Web3
REMOTE · API.GEXNO.COM
Free Ethereum wallet profile & NFT metadata MCP tools (no signup).
Available components
Last scanned (3 hours ago)
Scores higher than 80% of remote servers
Reachable. Last reached 27 Oct 2026.
Category Crypto and Web3
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security83
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability94
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 372 tokens (~186/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Tools include usage examples.Pass
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 2 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 27 Oct 26 +16
- HTTPS: unverified → pass ▲ security
- Authorization: unverified → partial ▲ security
- HSTS header: fail → pass ▲ security
- Tool “lookup_nft” rewrote its description, which is the text the model reads security
- Tool “lookup_wallet” rewrote its description, which is the text the model reads security
- Schema quality: pass → fail ▼ functional
- Stability: unverified → 0.03 ▲ functional
- Schema quality: fail → pass ▲ functional
- Server version: 0.1.2 → 0.1.3 functional
- 26 Oct 26 63
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 27 Oct 2026 · Probed https://api.gexno.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=gexno.com | CN=YE1,O=Let's Encrypt,C=US | 22 Oct 2026 | 20 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 5e8316659435704542a95cab8c27268274c |
| SANs: *.gexno.com, gexno.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of api.gexno.com. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| gexno.com. | present | 2371 | 13 | Verified |
| api.gexno.com. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=86400 |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.gexno.com/mcp | Verified | 200 | |
| http (plaintext) | http://api.gexno.com/mcp | HTTPS enforced | 301 | https://api.gexno.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
lookup_nft ~187
Resolve NFT metadata for a contract + tokenId: name, description, image HTTP URL, IPFS gateway link, and raw metadata JSON. Supports ERC-721 tokenURI and ERC-1155 uri. Use when the user asks for NFT metadata, token image, or to parse IPFS NFT JSON. tokenId must be a decimal string (or integer). Read-only lookup with no side effects. Example: lookup_nft {"contract":"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D","tokenId":"1"} returns the Bored Ape #1 metadata with an erc721 standard marker and imageHttp URL.
| Name | Type | Req | Description |
|---|---|---|---|
| contract | string | yes | NFT contract address (0x-prefixed, 40 hex chars) |
| tokenId | – | yes | Token ID as decimal string or non-negative integer |
No output schema declared.
{"contract":"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D","tokenId":"1"}lookup_wallet ~185
Look up an Ethereum wallet on-chain profile: ETH balance, whether the address is a smart contract, outbound transaction count, and simple risk heuristics (ok / new_wallet / contract / eip7702). Use when the user asks to check a wallet, query address balance, or get a quick chain risk snapshot. Not an AML score. EIP-7702 delegated EOAs are reported as risk=eip7702 (not as contracts). Read-only lookup with no side effects. Example: lookup_wallet {"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"} returns {"balanceEth":"5.77...","txCount":5969,"risk":"eip7702"}.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Ethereum address (0x-prefixed, 40 hex chars) |
No output schema declared.
{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}How do I install the Gexno Web3 MCP server?
Gexno Web3 is a hosted endpoint at https://api.gexno.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · api.gexno.com
claude mcp add --transport http janzenchen-gexno-web3 'https://api.gexno.com/mcp'
What is the Gexno Web3 MCP server?
Gexno Web3 is an MCP server listed in the public MCP registry as io.github.JanzenChen/gexno-web3. Free Ethereum wallet profile & NFT metadata MCP tools (no signup). This page covers its hosted endpoint (https://api.gexno.com/mcp).
Is the Gexno Web3 MCP server safe to use?
Gexno Web3 scores 79 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Gexno Web3 MCP server expose?
Gexno Web3 exposes 2 tools: lookup_wallet, lookup_nft. Their descriptions and schemas cost roughly 372 tokens of context every time the server is loaded.
Does the Gexno Web3 MCP server require authentication?
No. We connected to Gexno Web3 without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Gexno Web3 MCP server still maintained?
Gexno Web3 is still listed as active in the MCP registry. We last reached this channel on 27 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.