Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Descripción del creador (original en inglés)
Discover x402 endpoints and check their trust score before your agent pays them.
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
Elige la app de IA que usas y copia la configuración.
X402_PRIVATE_KEY, X402_MAX_USD, X402_MAX_TOTAL_USD, X402_MAX_CALLS, X402_TRUST_API_BASE, X402_TIMEOUT_MSLos valores marcados como secretos son llaves de tu cuenta. Nunca los compartas ni los pegues en un chat.
Necesitas
¿Qué app usas?
Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.
Abre Claude Desktop → Settings → Developer → Edit Config y pega esto en claude_desktop_config.json
{
"mcpServers": {
"x402-trust": {
"command": "npx",
"args": [
"-y",
"x402-trust-mcp"
],
"env": {
"X402_PRIVATE_KEY": "your-value",
"X402_MAX_USD": "your-value",
"X402_MAX_TOTAL_USD": "your-value",
"X402_MAX_CALLS": "your-value",
"X402_TRUST_API_BASE": "your-value",
"X402_TIMEOUT_MS": "your-value"
}
}
}
}Ejecuta esto en tu terminal
claude mcp add x402-trust --env X402_PRIVATE_KEY=your-value --env X402_MAX_USD=your-value --env X402_MAX_TOTAL_USD=your-value --env X402_MAX_CALLS=your-value --env X402_TRUST_API_BASE=your-value --env X402_TIMEOUT_MS=your-value -- npx -y x402-trust-mcpCompleta los valores vacíos antes de ejecutarlo.
Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"x402-trust": {
"command": "npx",
"args": [
"-y",
"x402-trust-mcp"
],
"env": {
"X402_PRIVATE_KEY": "your-value",
"X402_MAX_USD": "your-value",
"X402_MAX_TOTAL_USD": "your-value",
"X402_MAX_CALLS": "your-value",
"X402_TRUST_API_BASE": "your-value",
"X402_TIMEOUT_MS": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"x402-trust": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"x402-trust-mcp"
],
"env": {
"X402_PRIVATE_KEY": "your-value",
"X402_MAX_USD": "your-value",
"X402_MAX_TOTAL_USD": "your-value",
"X402_MAX_CALLS": "your-value",
"X402_TRUST_API_BASE": "your-value",
"X402_TIMEOUT_MS": "your-value"
}
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
X402_MAX_USD envX402_MAX_TOTAL_USD envX402_MAX_CALLS envX402_TRUST_API_BASE envX402_TIMEOUT_MS envEsta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 10 nov 2026
El nombre en el registro se verificó con la cuenta de GitHub JonasFuchss, dueña del repo
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Este se ejecuta en tu computadora; no hay endpoint en internet
Se ejecuta en tu computadora y usa ajustes locales en su lugar
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
Debes completar: X402_PRIVATE_KEY
Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).
El repo de GitHub cambió por última vez –, y la última versión (1.16.0) llegó al registro hace 25 días.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Node.js en tu computadora.
En la misma categoría: Spec Driven Development, Remote Desktop Commander, Beefi
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
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.
US public company data from SEC EDGAR: financials, insider trades, 13F holdings, filings and macro.
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
An MCP server for discovering x402 endpoints and checking their trust before paying them: semantic and keyword search across the monitored catalog, plus trust scores, history, bulk scoring, and watches for any endpoint.
Backed by x402-trust.com, which monitors the x402 ecosystem on Base and Solana 24/7: uptime probes, 402-envelope spec compliance, price history, and real on-chain USDC settlement volume per endpoint. Every score is computed deterministically, no LLM involved, so the breakdown is fully auditable.
| Tool | Cost | Description |
|---|---|---|
x402_ecosystem_stats | free | Snapshot of the whole x402 ecosystem: endpoint counts, reachability, and real USDC settlement volume over 30 days. |
x402_trust_leaderboard | free | Top-100 ranking of the most trustworthy x402 hosts, scored by their whole measured surface. Page with offset. |
x402_verified_providers | free | Hosts that proved domain control and confirmed a contact email. Informational only, verification never changes the score. |
x402_search | free | Substring search over host, URL and service name across the catalog. |
x402_semantic_search | free | Meaning-based search: describe the capability you need in plain words. Discovery only, no verdicts. |
x402_trust_preview | free | Three complete trust reports (best, median, worst) exactly as x402_trust_score returns them. |
x402_trust_score | paid | The full trust verdict for one endpoint: score 0-100, grade, recommendation, price, and flags. Unknown endpoints get live-probed on the spot. |
x402_endpoint_history | paid | Raw probe and event history for one endpoint over 1-90 days. |
x402_find_alternatives | paid | Semantically similar endpoints that out-score a given one. Empty result means nothing beats it. |
x402_trust_bulk | paid | Score up to 500 endpoints in one call; the cheapest fitting tier (10/50/100/200/500) is picked automatically. |
x402_watch_create | paid | 30-day monitor for one endpoint: alerts on payTo or price changes, delisting, spec regressions and downtime, via polling or webhooks. Returns a one-time secret. |
x402_watch_events | free | Poll a watch's event log with watch id and secret, paging by the returned cursors. |
x402_watch_edit | free | Change a watch's webhook URLs, sensitivity or subscribed events. |
x402_watch_cancel | free | Stop a watch now; its log stays readable until expiry. |
x402_watch_renew | paid | Add another 30 days to an active watch. Same secret. |
Paid tools cost from $0.005 (single lookup) to ~$0.50 (500-endpoint bulk), charged over x402 (USDC on Base). With X402_PRIVATE_KEY set the server auto-pays within your limits; otherwise it returns the price quote for your host to pay. List tools page with limit (max 25) + offset and return a total.
Field-level documentation, verdict semantics, watch cursor rules and webhook signature details live at x402-trust.com/llms.txt; every response is self-describing via its schema at x402-trust.com/schemas.
Add to your MCP client config (e.g. Claude Desktop claude_desktop_config.json):
{
"mcpServers": { "x402-trust": { "command": "npx", "args": ["-y", "x402-trust-mcp"] } } }
To enable autonomous payment for the paid tools, add a funded Base USDC wallet:
{
"mcpServers": { "x402-trust": { "command": "npx", "args": ["-y", "x402-trust-mcp"], "env": { "X402_PRIVATE_KEY": "0xYOUR_BASE_WALLET_KEY", "X402_MAX_USD": "0.05" } } } }
| Var | Default | Description |
|---|---|---|
X402_TRUST_API_BASE | https://x402-trust.com | API base URL. |
X402_PRIVATE_KEY | _(unset)_ | Base wallet private key. Enables auto-pay for paid tools. A set-but-malformed key logs a warning and leaves auto-pay off. |
X402_MAX_USD | 0.05 | Per-call auto-pay ceiling. 0 disables auto-pay. |
X402_MAX_TOTAL_USD | 1.00 | Cumulative auto-pay cap per process. 0 = unlimited. |
X402_MAX_CALLS | 1000 | Max paid calls per process. 0 = unlimited. |
X402_TIMEOUT_MS | 20000 | Request timeout. |
X402_BASE_RPC_URL | public Base RPCs | Endpoint for the pre-signing USDC balance check (free eth_call; defaults to the public Base mainnet/Sepolia RPCs). |
The free tools work with no configuration at all.
X402_PRIVATE_KEY is a hot wallet: fund it with only what you are willing to spend on trust lookups. The key never leaves your machine; it signs EIP-3009 payment authorizations locally, after policy checks: chain allow-list (Base mainnet by default), canonical USDC contract verification, and the spend and call-count caps above. Before every payment the client re-reads the wallet's USDC balance: a wallet that cannot cover the quote is refused locally, before anything is signed, so an empty wallet never produces failed settlement attempts, and a top-up takes effect on the very next call.
Signed tool results carry a top-level signature block: an Ed25519 signature over the JCS-canonicalized (RFC 8785) response. It proves the content was assembled by x402-trust and not modified afterwards.
One rule matters when verifying: pin the trust anchor, never follow it from the response. signature.publicKeys is a discovery hint; a forged response would point at the attacker's own key document and still verify. Pin the public key itself or fetch https://x402-trust.com/.well-known/x402-trust-keys.json once at bootstrap and cache it. A worked test vector and a 20-line reference verifier live at x402-trust.com/schemas. Watch management responses are unsigned by design: they carry capability secrets that must never be forwarded as evidence.
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