Robin: AI-Powered Dark Web OSINT
Dark web OSINT over Tor: search onion engines, scrape pages, report with your own model.
Runs on your computer
Preflight
What it does
Pay-per-call smart-contract security: scans, tx simulation, and token risk via x402 (USDC on Base).
- Connects Runs in the cloud
- Account or key No key needed
- Category Cybersecurity
Install
Pick the AI app you use, then copy the settings.
Passed 4/5 checks · What you ask goes through the maker’s server (preflight--preflight-api-mcp.modal.run) · ✓ Commands checked Nov 14, 2026
First: which AI do you use?
Pick your app and the steps appear below.
Works with Claude · about 2 min
No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it
Open Claude’s Connectors page
CustomizeConnectors
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NamePreflightRemote MCP server URL · Addresshttps://preflight--preflight-api-mcp.modal.run/mcpClick Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Turn it on in a chat
+ConnectorsPreflight
Try it
Use Preflight and tell me what you can do for me, then show me one thing✓ If Claude says it is using Preflight or shows a Preflight tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with ChatGPT, depending on your plan
Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only
Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NamePreflightConnection · Addresshttps://preflight--preflight-api-mcp.modal.run/mcpPick Preflight in a chat
Start a new chat and pick Preflight from your plugins before typing
Try it
Use Preflight and tell me what you can do for me, then show me one thing✓ If ChatGPT says it is using Preflight or shows a Preflight tool in the answer, you are connected
Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Claude Code · about 2 min
No key, nothing to install
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --transport http --scope user preflight https://preflight--preflight-api-mcp.modal.run/mcpType /mcp in Claude Code
You should see Preflight listed as connected
Try it
Use Preflight and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using Preflight or shows a Preflight tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Cursor · about 2 min
No key, nothing to install
Open the AI chat in Cursor in Agent mode
Try it
Use Preflight and tell me what you can do for me, then show me one thing✓ If Cursor says it is using Preflight or shows a Preflight tool in the answer, you are connected
Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with VS Code · about 2 min
No key, nothing to install
Open the AI chat in VS Code in Agent mode
Try it
Use Preflight and tell me what you can do for me, then show me one thing✓ If VS Code says it is using Preflight or shows a Preflight tool in the answer, you are connected
Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.
Address for apps that connect over the web
Address
https://preflight--preflight-api-mcp.modal.run/mcpJSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Over the web
Claude Code
claude mcp add --transport http --scope user preflight https://preflight--preflight-api-mcp.modal.run/mcpCursor (~/.cursor/mcp.json)
{
"mcpServers": {
"preflight": {
"url": "https://preflight--preflight-api-mcp.modal.run/mcp"
}
}
}VS Code (mcp.json)
{
"servers": {
"preflight": {
"type": "http",
"url": "https://preflight--preflight-api-mcp.modal.run/mcp"
}
}
}These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
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
ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast
Related guides
What it can do
Tool names and descriptions exactly as the server reported them on Nov 14, 2026. The maker wrote them, not us; we show them as plain text.
preflight_checkScan Solidity source and return a security verdict. This is a paid call ($0.01 USDC on Base mainnet) that flows through x402; in dev mode (DEV_MODE=1) no payment is required.
preflight_simSimulate a transaction against a contract and return revert reason, gas used, balance deltas, and severity-scored findings. mode='quick' costs $0.05 (eth_call); mode='deep' costs $0.25 (anvil local fork with gas, balance_delta_wei, and internal_calls). Paid in USDC on Base mainne
preflight_token_riskCheck a token contract before trading it. Returns a honeypot transfer verdict, transfer tax percentage, and owner privileges as a severity-scored ScanReport. Paid call ($0.05 USDC on Base mainnet) via x402; DEV_MODE=1 skips payment.
preflight_pricingReturn the Preflight service info and price list (free).
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 14, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account dainidude, which owns the repo
- ✓ Pass
Still maintained
Code last changed today
- ✕ Fail
Has a licence
No licence file found in the repo
- ✓ Pass
- – Not applicable
Sign-in with OAuth
No sign-in needed
- ✓ Pass
No hidden instructions in tool descriptions
Read 4 tool descriptions and found no hidden instructions to the AI
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Cybersecurityi
- More stars than 0% of the other 1059 servers in this category
- Published to the registry more recently than 98% of the other 1059 servers in this category
- Basic checks equal to or better than 51% of the other 1059 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 Preflight safe?
It passed 4 of 5 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 today, and the latest version (0.1.0) reached the registry today.
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: Robin: AI-Powered Dark Web OSINT, HOL Guard, SonarQube MCP Server
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
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.
Preflight — x402-paid smart-contract pre-flight security API
Pay-per-call security scans and transaction simulations for AI agents. POST Solidity source or a transaction, receive a severity-scored, EIP-712-attested verdict: looks_ok | review | block. Payments over the x402 protocol (HTTP 402 + real USDC on Base mainnet).
Built from the product plan in dud3-vault/LLM/2026-11-08 - x402 Product Plans.md by hermes + omp + crush + opencode in a 4-pane Herdr session.
Try it
# no wallet needed (server DEV_MODE=1):uv run uvicorn preflight.api.app:app --port 8000 & uv run python client/pay_client.py --dev
real x402 payment (funded burner, $0.01):
uv run python client/pay_client.py
the handshake, by hand:
curl -i -X POST http://127.0.0.1:8000/v1/scan -H 'Content-Type: application/json' \ -d '{"source":"contract A {}"}'
→ 402, PAYMENT-REQUIRED header (base64 JSON requirements)
→ retry with PAYMENT-SIGNATURE header → verdict + PAYMENT-RESPONSE
Endpoints & prices
| Route | Price |
|---|---|
POST /v1/scan — single-file security scan (solc+Slither + 5 custom DeFi detectors) | $0.01 |
POST /v1/sim — transaction pre-flight simulation (RPC eth_call, revert decode) | $0.05 |
POST /v1/scan/project — multi-file project scan | $0.10 |
POST /v1/address-risk — address risk heuristics | $0.005 |
GET / GET /health GET /metrics GET /llms.txt GET /.well-known/x402.json | free |
First 10 scans/day per client are free (funnel). 10 req/min per payer.
Architecture
client/pay_client.py paying demo agent (402 → x402.client pay → retry)src/preflight/ core/ pipeline (solc+Slither), custom detectors, scoring, simulation (RPC eth_call + revert decoding) api/ FastAPI app, real x402 middleware (x402 pkg, x402.org facilitator), cache (source-hash LRU), ratelimit, metrics mcp/ MCP server: preflight_check, preflight_sim, preflight_pricing public/ llms.txt + .well-known/x402.json (discovery)
- Payments:
x402package v2 —exactscheme, USDC, Base mainnet (CDP facilitator with KYT/OFAC); facilitator verifies + settles; server never holds custody. - Attestations: EIP-712 over
(source_sha256, verdict, findings_root)— buyers can prove what we said. - Determinism: static analysis +
eth_callsimulation; verdicts are reproducible.
Listing
- x402scan: https://www.x402scan.com/server/1961af3d-afed-400b-bc57-ca4ebe41ef18 (all 5 paid routes indexed)
Docs
AGENTS.md— ownership map & interface contractdocs/LAUNCH.md— launch checklist, tunnel, mainnet flip, operating notesdocs/STATUS_*.md— per-area build reports
Test
uv run pytest tests/ -m "not network" # offline suiteuv run pytest tests/ -m network # live-RPC + real paid flows (spends test USDC)