Solana MCP by Vybe
Solana MCP developer toolkit: wallets, trades, markets, PnL, transfers, onchain, swaps & API tools.
Runs in the cloud
Lumen Pre-Sign Check
What it does
Use before signing an EVM tx or EIP-712 message: risk flags + verdict. Informational, no simulation
- Connects Runs in the cloud
- Account or key No key needed
- Category Crypto & blockchain
Install
Pick the AI app you use, then copy the settings.
Passed 3/4 checks · Runs on your computer
We hid some of the commands
Connect by URL: the server address did not answer when we checked
No install path has passed yet. See the maker’s instructions or pick another server in this category · Maker’s install instructions · Others in this category
First: which AI do you use?
Pick your app and the steps appear below.
Claude cannot connect Lumen Pre-Sign Check yet
No install path has passed yet. See the maker’s instructions or pick another server in this category
ChatGPT cannot connect Lumen Pre-Sign Check yet
No install path has passed yet. See the maker’s instructions or pick another server in this category
What you can do instead
B · Others in Crypto & blockchain that work with ChatGPT
Picked from the most used in the same category, only ones that connect by address with no key
- Solana MCP by Vybe✓ ChatGPT
- 0xinsider✓ ChatGPT
- Highwire✓ ChatGPT
Claude Code cannot connect Lumen Pre-Sign Check yet
No install path has passed yet. See the maker’s instructions or pick another server in this category
Cursor cannot connect Lumen Pre-Sign Check yet
No install path has passed yet. See the maker’s instructions or pick another server in this category
VS Code cannot connect Lumen Pre-Sign Check yet
No install path has passed yet. See the maker’s instructions or pick another server in this category
No install path has passed yet. See the maker’s instructions or pick another server in this category
At a glance
Which apps can use it
Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.
Connect over the internet in
GooseLM StudioMsty StudioCherry StudioVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast
Related guides
What it can do
The server did not answer when we last checked, so we could not read its tools.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Dansgit2b, which owns the repo
- ✓ Pass
Still maintained
Code last changed 33 days ago
- ✓ Pass
Has a licence
Uses MIT
- ✕ Fail
Endpoint responds
Did not respond within 6 seconds when we checked
- – Not applicable
Sign-in with OAuth
Did not respond within 6 seconds when we checked
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
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Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Crypto & blockchaini
- More stars than 0% of the other 1669 servers in this category
- Published to the registry more recently than 57% of the other 1669 servers in this category
- Basic checks equal to or better than 54% of the other 1669 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Lumen Pre-Sign Check safe?
It passed 3 of 4 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed 33 days ago, and the latest version (1.4.0) reached the registry 34 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).
What can I use instead?
In the same category: Solana MCP by Vybe, Oracle3 prediction-market arbitrage checks, Polymarket Paper Trader
Others in the same category
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Oracle3 prediction-market arbitrage checks
Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.
Runs on your computer
Polymarket Paper Trader
Polymarket paper trading for AI agents: $10k paper money, real order books, official fees.
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Lumen Works Agent API (x402)
Two listings on one origin:
- Lumen Pre-Sign Check:
POST /v1/tx/explain($0.002). Use before signing any EVM transaction or EIP-712 message; returns{summary[], flags[], verdict}withlooks_ok | review | do_not_sign_unless_intended. Agent policy: abort ondo_not_sign_unless_intended, escalatereview. Informational, not a security guarantee; looks_ok does not mean safe; no simulation. Accuracy set and known limits: ACCURACY.md. MCP:/mcp/presign. - Lumen Agent Utilities: every other route below. MCP:
/mcp.
Trust terms: no signup; free tier 20 calls/hour/IP under /v1/free/...; GET/HEAD on any paid path returns the 402 quote (it never settles); not charged when a call errors, because the x402 middleware settles only after the handler returns a status below 400. Input schemas and real example outputs (examples.json, captured live by test/capture-examples.mjs) are in each route's Bazaar extension and in /openapi.json, validated with node test/validate-bazaar.mjs .
Stats: /v1/stats has anonymous aggregates only (UA family, daily unique counts from salted daily-rotating IP hashes, 30-day retention). They persist across deploys when STATS_GIST_ID + STATS_GIST_TOKEN (a gist-only token) are set; otherwise they are kept in memory.
Pay-per-call agent utilities, 0.001–0.002 USDC per call on Base mainnet via x402 (exact scheme, PayAI public facilitator). Author: Dan (Dansgit2b). Early-stage, unaudited.
| Endpoint (POST JSON) | What |
|---|---|
/v1/x402/lint {header} | decode + lint x402 PAYMENT-REQUIRED/SIGNATURE/RESPONSE |
/v1/eip712/decode {typedData} | domain separator, digest, risk notes |
/v1/calldata/decode {data, signature?} | selector, openchain/4byte lookup, decoded args |
/v1/web/markdown {url, fullPage?, maxChars?} — $0.001 | public page → clean Markdown (Readability) + metadata. No JS rendering. |
/v1/web/unfurl {url} — $0.001 | final URL, status, title, description, OG image, canonical, favicon |
/v1/evm/address {address} (0x or ENS) — $0.002 | Ethereum+Base: ENS + records, EOA/contract/7702, balances, USDC/USDT, ERC-20 info (public RPC) |
/v1/domain/lookup {domain} — $0.002 | DNS (DoH) A/AAAA/MX/NS/TXT/CAA, SPF/DMARC, RDAP registrar/created/expiry, age |
Free tier: same paths under /v1/free/... (20/hour/IP). Discovery: /, /.well-known/x402, /openapi.json, /llms.txt. payTo: 0xee9790cB3960952F585379F831a89b4e00B4029A.
End-to-end proof (local run, 2026-10-10): paid call settled on Base, tx 0xff4af45df7caeef958b77700e96ba94e5ed37d3bac6e8cf40d6528a9497d77d4.
Deploy: Render (render.yaml, free plan) or any Docker host (Dockerfile). Set PUBLIC_BASE to the public origin. No secrets needed (server only receives payments). License MIT.
MCP server
Remote MCP (streamable HTTP, stateless JSON): https://lumenworks-x402-decoder.onrender.com/mcp, with tools x402_lint, eip712_decode, calldata_decode, web_markdown, url_unfurl, evm_address_lookup and domain_lookup. Free tier: 20 tool calls/hour/IP. After that the tool returns the x402 payment requirements for the matching paid HTTP endpoint (0.001–0.002 USD).
Celo
When X402_CELO_API_KEY (from the x402.celo.org dashboard) is set, every paid route also accepts USA₮ and USDC on Celo (eip155:42220), settled through Celo's hosted facilitator at api.x402.celo.org.
Free x402 payment safety check
POST /v1/x402/safety-check (MCP tool x402_payment_safety_check) — deterministic pre-payment check. Body: {url?, method?, payment_required?, expected_pay_to?, expected_network?, max_price_usdc?, listed_price_usdc?, facilitator_url?, client_config?}. We fetch the unpaid 402 (SSRF-guarded) and return ok | review | do_not_pay with checks: HTTPS/health/latency, payTo validity/checksum/mismatch, unknown asset/network, price vs your cap and the listed price, timeout/replay window, multiple payTo, unknown facilitator, missing spend caps / idempotency in your client config. Nothing is stored; inputs that look like private keys are rejected. 30/hour/IP.
Planned (not built): continuous monitoring with alerts on price/payTo/asset changes. Free waitlist: POST /v1/monitoring/waitlist {endpoint_url, contact?} (5/hour/IP). No date promised; stored in memory/logs only on a free host, so it may be lost on restart.
Stats
GET /v1/stats — anonymous in-memory counters since last restart: calls per endpoint, unpaid 402s vs paid settlements (conversion), coarse user-agent buckets. No IPs or bodies stored.
v1.3: explain-before-you-sign + public-data tools
| Endpoint (POST) | Price | MCP tool | Upstream (free, no key) |
|---|---|---|---|
/v1/tx/explain | 0.002 | explain_before_sign | calldata (openchain/4byte) + EIP-712, risk flags |
/v1/pubmed/search | 0.001 | pubmed_search | NCBI E-utilities |
/v1/arxiv/search | 0.001 | arxiv_search | arXiv API |
/v1/sec/filings | 0.001 | sec_filings | SEC EDGAR (set SEC_USER_AGENT with a contact email per SEC policy) |
/v1/weather/forecast | 0.001 | weather_forecast | Open-Meteo (CC BY 4.0) |
/v1/polymarket/markets | 0.001 | polymarket_markets | Polymarket Gamma (read-only data) |
Free tier: /v1/free/ or MCP, 20 calls/hour/IP.
Facilitators
If CDP_API_KEY_ID and CDP_API_KEY_SECRET are set, Coinbase's CDP facilitator is used first. Settlements through it are what get the service indexed in the x402 Bazaar. The PayAI facilitator stays registered as the fallback. Without CDP keys, PayAI handles everything, as before.