Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Workflow diagnostics, capability routing, and x402 settlement for MCP-compatible agents.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
SECOND_EYE_BASE_URL, MCP_X402_WALLET_KEY, MCP_X402_MAX_SPEND_USD, MCP_X402_SESSION_MAX_USD, MCP_X402_ALLOW_SLUGSYou need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
https://secondeyesai.com/api/barOpen Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"secondeye-unblock": {
"command": "npx",
"args": [
"-y",
"@secondeyes/mcp-unblock"
],
"env": {
"SECOND_EYE_BASE_URL": "your-value",
"MCP_X402_WALLET_KEY": "your-value",
"MCP_X402_MAX_SPEND_USD": "your-value",
"MCP_X402_SESSION_MAX_USD": "your-value",
"MCP_X402_ALLOW_SLUGS": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http secondeye-unblock https://secondeyesai.com/api/barclaude mcp add secondeye-unblock --env SECOND_EYE_BASE_URL=your-value --env MCP_X402_WALLET_KEY=your-value --env MCP_X402_MAX_SPEND_USD=your-value --env MCP_X402_SESSION_MAX_USD=your-value --env MCP_X402_ALLOW_SLUGS=your-value -- npx -y @secondeyes/mcp-unblockFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"secondeye-unblock": {
"url": "https://secondeyesai.com/api/bar"
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"secondeye-unblock": {
"command": "npx",
"args": [
"-y",
"@secondeyes/mcp-unblock"
],
"env": {
"SECOND_EYE_BASE_URL": "your-value",
"MCP_X402_WALLET_KEY": "your-value",
"MCP_X402_MAX_SPEND_USD": "your-value",
"MCP_X402_SESSION_MAX_USD": "your-value",
"MCP_X402_ALLOW_SLUGS": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"secondeye-unblock": {
"type": "http",
"url": "https://secondeyesai.com/api/bar"
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"secondeye-unblock": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@secondeyes/mcp-unblock"
],
"env": {
"SECOND_EYE_BASE_URL": "your-value",
"MCP_X402_WALLET_KEY": "your-value",
"MCP_X402_MAX_SPEND_USD": "your-value",
"MCP_X402_SESSION_MAX_USD": "your-value",
"MCP_X402_ALLOW_SLUGS": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://secondeyesai.com/api/barMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
SECOND_EYE_BASE_URL envMCP_X402_WALLET_KEY envMCP_X402_MAX_SPEND_USD envMCP_X402_SESSION_MAX_USD envMCP_X402_ALLOW_SLUGS envThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
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 7, 2026
The registry name was verified with the GitHub account This-Is-Hellgate, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 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.
The registry does not list a required key, though some servers ask you to sign in on first use.
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (1.2.7) reached the registry 4 months ago.
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 in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Tools MCP
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Web production tools for AI agents: contrast, JP text, WebP, JSON-LD, slugs, dates and 40+ more
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.
Open infrastructure for autonomous agents. secondeyesai.com
Second Eyes is a multi-rail payment and verification substrate for wallet-equipped agents and the runtimes that authorize their tools. Agents call in, pay via x402 (USDC on Base), AP2 mandate, or Stripe ACP, and get deterministic verdicts — no sessions required for the one-shot path.
| Surface | Location |
|---|---|
| Live API + site | / — Cloudflare Pages (wrangler pages deploy public) |
| MCP npm package | packages/secondeye-mcp — @secondeyes/mcp-unblock |
| Agent entry | GET https://secondeyesai.com/api/bar |
| Agent instructions | public/llms.txt — how to pay, service catalog, one-shot routes |
| Help-me JSON packet | public/.well-known/help-me.json — machine-readable distress entry route |
| Agent card | public/.well-known/agent-card.json |
| Crawler policy | public/robots.txt |
The MCP package is a thin stdio client that proxies to the substrate API. Same codebase, same repo, same product.
| Layer | Protocol | Role |
|---|---|---|
| Identity / Reputation | ERC-8004 | Open registry — anyone queryable |
| Payments | x402 (USDC / Base) | Default machine rail — open HTTP 402, no allowlist |
| Payments | AP2 + VDC mandates | Gates internal ephemeral spawn only |
| Payments | Stripe ACP | Human or low-trust agent checkout |
| Discovery | x402 Bazaar / CDP | Substrate endpoints registered publicly |
| Transport | A2A / MCP | Existing |
No login, no session header. Pay USDC on Base via x402 v2 (PAYMENT-REQUIRED → sign → PAYMENT-SIGNATURE). Deterministic verdicts — same answer on every retry.
| Door | Path | Price |
|---|---|---|
| help-me (canonical meta-tool — looping, schema mismatch, context pressure, crash, handoff failure, wallet/spend-policy, grounding risk, auth/tool/sandbox failure, payment uncertainty) | /api/bar/x402/help-me | $0.01 |
| AWS AgentCore one-shot map | /api/bar/x402/aws-agent-survival | $0.01 |
peril-router (legacy alias of help-me) | /api/bar/x402/peril-router | $0.01 |
| Schema repair | /api/bar/x402/schema-repair | $0.03 |
| Context pressure (alias: token-pressure) | /api/bar/x402/context-pressure | $0.03 |
| Payment confirmation check | /api/bar/x402/payment-confirmation-check | $0.01 |
| Specialist one-shot routes | /api/bar/x402/{slug} | $0.01–$0.05 |
| Transcribe (audio/video/PDF) + meaning | /api/bar/x402/transcribe | $0.05 |
| Doc extract (invoice/contract/PDF) | /api/bar/x402/extract | $0.05 |
| Bazaar index check | /api/bar/x402/index-check | $0.05 |
| x402 format doctor | /api/bar/x402/doctor | $0.25 |
Full agent-facing docs: `/llms.txt`. Index new routes: node scripts/canary-pay.mjs.
accepts[])Base (eip155:8453) is canonical and always accepts[0]. Polygon (eip155:137) and Solana are roadmap — do not sign for a planned rail. Live rail states: GET /api/bar → payment_activation.rail_states. See docs/multi-network-x402.md.
Per-stack JSON profiles — match your stack, read your active failure modes and observable trigger signals, then call the named Second Eyes route.
Index: public/.well-known/wallet-agent-targets/index.json
| Target | Profile |
|---|---|
| Coinbase AgentKit + CDP + x402 | /.well-known/wallet-agent-targets/coinbase-agentkit-cdp.json |
| AWS AgentCore Payments + Strands | /.well-known/wallet-agent-targets/agentcore-strands.json |
| MCP clients with spending wallets | /.well-known/wallet-agent-targets/mcp-spending-wallets.json |
| Crossmint / Privy / Turnkey signer infra | /.well-known/wallet-agent-targets/wallet-infra-crossmint-privy-turnkey.json |
| LangGraph / CrewAI / AutoGen / OpenAI SDK + wallets | /.well-known/wallet-agent-targets/langgraph-crewai-openai-wallets.json |
| x402-native (ClawRouter / BlockRun / Zerion) | /.well-known/wallet-agent-targets/x402-native-blockrun-clawrouter-zerion.json |
{
"mcpServers": { "secondeye": { "command": "npx", "args": ["-y", "@secondeyes/mcp-unblock"] } } }
cd <project-root>
npm install npx wrangler pages deploy public --project-name second-eyes-ai
Secrets (never commit): copy .env.example → .env.local, then node scripts/push-coinbase-secrets.mjs. Required for transcribe/extract: OPENROUTER_API_KEY.
After adding x402 routes, settle once each for CDP Bazaar indexing: node scripts/canary-pay.mjs.
From repo root, tag mcp-vX.Y.Z (or run workflow manually). Uses npm Trusted Publishing (OIDC) — configure once on npmjs.com. See packages/secondeye-mcp/PUBLISH.md.
The standalone secondeye-mcp repository is retired — all development happens here.
| Before | After |
|---|---|
| Anthropomorphic route label | Canonical slug-style route label |
| Theatrical route wording | Technical route wording |
| Prepper/theatrical route-group wording | Specialist one-shot route-set wording |
| Legacy catalog wording | Service-catalog wording |