QuickBuild Agent Tools

Descripción

Un conjunto de herramientas alojado para agentes en un Cloudflare Worker. Las herramientas gratuitas reducen el tamaño del contexto del LLM: URL a Markdown, recorte de JSON, compresión de logs, estimación de tokens, esquemas de páginas y una comprobación rápida de sitios web. Las herramientas de pago cubren auditorías de sitios, metadatos de páginas, resúmenes, traducción, generación de imágenes, capturas de pantalla, texto a voz, embeddings, reranking, chat con LLM, tipos de cambio, precios de criptomonedas y consultas de direcciones en Base y Solana.

Se ejecuta como un endpoint remoto Streamable HTTP. No se necesita iniciar sesión ni clave de API. Las herramientas gratuitas tienen límites por hora y por IP. Las herramientas de pago cuestan un importe fijo en USDC por llamada en Base, pagado con x402; las llamadas fallidas no se cobran.

Qué puedes hacer

• Convertir una página web pública a Markdown compacto
• Recortar JSON grande y comprimir logs para ahorrar tokens
• Estimar el número de tokens y generar el esquema de páginas
• Auditar sitios web en busca de enlaces rotos, metaetiquetas y cabeceras de seguridad
• Resumir, traducir y capturar páginas web (de pago)
• Consultar wallets, tokens, transacciones y gas en Base (de pago)
• Generar imágenes, voz, embeddings y reordenar documentos (de pago)

Herramientas 40

• launchcheck_fullSolo lectura

  Informe completo de pago previo al lanzamiento de una URL con enlaces, tarjeta social y capturas.

• website_auditSolo lectura

  Auditoría de pago de hasta 3 páginas: metaetiquetas, cabeceras de seguridad, enlaces y secretos filtrados en JS.

• page_metadataSolo lectura

  Metadatos estructurados y vista previa de enlace de pago para una página.

• domain_intelSolo lectura

  Información de dominio: DNS, SPF/DMARC, RDAP, nota de seguridad del correo

• x402_preflightSolo lectura

  Comprobación previa de x402 (si esta URL acepta pagos y cuánto cuesta)

• injection_checkSolo lectura

  Comprobación de inyección de prompts (filtro por reglas y patrones, sin LLM) para texto o una página

• summarizeSolo lectura

  Resumen de pago en JSON de una URL o un texto generado por Llama 3.3 70B.

• translateSolo lectura

  Traducción de pago con LLM de un texto o una página web.

• generate_imageSolo lectura

  Generación de pago de imágenes de 1024x1024 con FLUX.1 schnell.

• screenshot_urlSolo lectura

  Captura de pantalla de pago de una página pública con Chrome headless.

• text_to_speechSolo lectura

  Conversión de pago de texto a voz en WAV en seis idiomas.

• base_gas_priceSolo lectura

  Instantánea de pago del gas en tiempo real de Base mainnet.

Leídas del servidor en funcionamiento el 6 nov 2026. Solo lectura, Escritura y Puede borrar son indicaciones que declara el servidor; tu cliente decide si te pregunta antes de ejecutar una herramienta.

Prompts de ejemplo

• Convierte https://example.com/docs a Markdown compacto y dime cuántos tokens se ahorran

• Comprime esta salida de log dejando solo los errores y las líneas únicas

• Haz una comprobación gratuita del sitio https://example.com

• Recorta esta respuesta JSON dejando solo las claves id y name

Configuración

Todos los clientes se conectan a quickbuild.quynguyenbac.workers.dev. Elige el tuyo; la página recuerda tu elección.

claude mcp add --transport http quickbuild-agent-tools https://quickbuild.quynguyenbac.workers.dev/mcp

https://quickbuild.quynguyenbac.workers.dev/mcp

{
  "mcpServers": {
    "quickbuild-agent-tools": {
      "url": "https://quickbuild.quynguyenbac.workers.dev/mcp"
    }
  }
}

code --add-mcp '{"name":"quickbuild-agent-tools","type":"http","url":"https://quickbuild.quynguyenbac.workers.dev/mcp"}'

{
  "servers": {
    "quickbuild-agent-tools": {
      "type": "http",
      "url": "https://quickbuild.quynguyenbac.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "quickbuild-agent-tools": {
      "serverUrl": "https://quickbuild.quynguyenbac.workers.dev/mcp"
    }
  }
}

codex mcp add quickbuild-agent-tools --url https://quickbuild.quynguyenbac.workers.dev/mcp

[mcp_servers.quickbuild-agent-tools]
url = "https://quickbuild.quynguyenbac.workers.dev/mcp"

gemini mcp add --transport http quickbuild-agent-tools https://quickbuild.quynguyenbac.workers.dev/mcp

{
  "mcpServers": {
    "quickbuild-agent-tools": {
      "type": "http",
      "url": "https://quickbuild.quynguyenbac.workers.dev/mcp"
    }
  }
}

Insertar

Muestra QuickBuild Agent Tools en un README o en tu web. Cada inserción enlaza a esta página, usa la URL propia del servidor y no instala cookies. Cómo funcionan las inserciones

La tarjeta, el iframe y el JSON están en inglés. Añade ?lang=it, fr, de o es a su dirección para otro idioma.

Insignia para README Tarjeta para web iframe JSON Prompt para la IA

Insignia para README

Markdown

[![QuickBuild Agent Tools on mcp.tc](https://mcp.tc/i/quickbuild-agent-tools/badge.svg)](https://mcp.tc/i/quickbuild-agent-tools)

HTML

<a href="https://mcp.tc/i/quickbuild-agent-tools"><img src="https://mcp.tc/i/quickbuild-agent-tools/badge.svg" alt="QuickBuild Agent Tools on mcp.tc" height="20"></a>

Sigue el modo claro u oscuro de quien lee. Añade ?theme=light o ?theme=dark para fijarlo, o ?style=compact para mostrar el símbolo sin la palabra.

Tarjeta para web

HTML

<script src="https://mcp.tc/w/quickbuild-agent-tools.js" async></script>

La tarjeta aparece donde esté la etiqueta. Añade data-theme="dark" o data-size="compact" a la etiqueta para cambiarla. El archivo contiene todo lo que necesita, así que no hace otras solicitudes ni instala cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/quickbuild-agent-tools" title="QuickBuild Agent Tools on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Úsalo en páginas que no permiten scripts. Añade ?theme=light o ?theme=dark a la dirección para fijar los colores.

JSON

La ficha como datos para tus propias páginas y herramientas: nombre, descripción corta, la URL propia del servidor, herramientas y los enlaces «Add to». Cualquier web puede leerla (CORS abierto).

https://mcp.tc/i/quickbuild-agent-tools.json

Qué significa cada campo

Prompt para la IA

Pégalo en un asistente de programación con IA, como Claude Code o Cursor, y añadirá la tarjeta de QuickBuild Agent Tools a tu web.

Markdown

Añade a mi web la tarjeta de mcp.tc de QuickBuild Agent Tools, un servidor MCP. Es un solo script estático: sin paso de build, sin paquetes que instalar, sin cookies.

Pon esta etiqueta donde deba aparecer la tarjeta. La tarjeta se muestra justo antes de ella:

```html
<script src="https://mcp.tc/w/quickbuild-agent-tools.js" async></script>
```

Para mostrarla en otro sitio, pon allí este marcador y carga el mismo script una sola vez, por ejemplo antes de `</body>`. Deja el enlace dentro: lo ven los visitantes sin JavaScript.

```html
<div data-mcptc="quickbuild-agent-tools"><a href="https://mcp.tc/i/quickbuild-agent-tools">QuickBuild Agent Tools on mcp.tc</a></div>
```

Opciones:
- `data-theme="light"` o `"dark"` en la etiqueta o el marcador fija los colores. Sin él, la tarjeta sigue el modo claro u oscuro del visitante.
- `data-size="compact"` da una tarjeta más pequeña, sin el eslogan.
- La variable CSS `--mcptc-max-width` en el marcador o en un elemento padre fija el ancho (por defecto `520px`).
- `?lang=` en la URL del script fija el idioma de la tarjeta: `en`, `it`, `fr`, `de` o `es`.

Si el sitio tiene una Content Security Policy, permite `script-src https://mcp.tc` e `img-src data:` (el icono va incrustado).

Para un README u otra documentación en Markdown, usa la insignia:

```markdown
[![QuickBuild Agent Tools on mcp.tc](https://mcp.tc/i/quickbuild-agent-tools/badge.svg)](https://mcp.tc/i/quickbuild-agent-tools)
```

Referencia: https://mcp.tc/es/embed

Historial de cambios

Leemos la lista de herramientas de este servidor cada 3 horas y registramos lo que cambia. Última lectura: 7 nov 2026, 14:43 UTC.

1. 3 nov 2026, 17:49 UTC, Comprobación automática

   1 herramienta añadida.

   Detalles, 3 nov 2026, 17:49 UTC

   Añadidas 1

   • injection_checkSolo lectura

     [PAID $0.003 USDC per call via x402 on Base; errors are free] For developers of AI agents that read untrusted web pages, emails or tool outputs. A RULE/PATTERN filter (regex heuristics, no LLM, no model-quality promise): flags instruction overrides ("ignore previous instructions"), role/system impersonation (<|im_start|>, [INST], "system:"), exfiltration requests (send keys/secrets to a URL), hidden text (zero-width/bidi/Unicode-tag chars, HTML comments, display:none / white text, base64 blobs that decode to instructions), tool-call / shell command injection, markdown image/link exfil, and overrides in EN/ES/FR/DE/ZH/JA/RU. POST JSON {"text"} (max 32 KB) or GET ?text= for short text, or {"url"} to fetch one public https page (port 443, public hosts only, max 2 redirects, 64 KB read, 4 s timeout). Returns verdict, score 0-100, findings (category, snippet <= 80 chars with secrets redacted, position) and an honest `limits` note. Paraphrased or novel attacks can be missed; not a guarantee…

2. 2 nov 2026, 20:52 UTC, Comprobación automática

   1 herramienta añadida.

   Detalles, 2 nov 2026, 20:52 UTC

   Añadidas 1

   • x402_preflightSolo lectura

     [PAID $0.005 USDC per call via x402 on Base; errors are free] For developers of buyer agents. Makes ONE unpaid request (GET, POST fallback if GET is not allowed; 4 s timeout; max 2 redirects; 64 KB read) to the target and parses its HTTP 402 challenge (v2 PAYMENT-REQUIRED base64 header or v1 JSON body). Returns normalised accepts[] (scheme, CAIP-2 network, asset, amount in USD, payTo), pass/fail checks (valid challenge, supported mainnet network, USDC asset, parseable amount within a sanity cap, well-formed payTo, latency, TLS, Bazaar metadata, CORS), a verdict with plain reasons, latency, and the measured /ai-search score + sample size when the host is in our index. NEVER sends a payment or payment header. https + public hostnames + port 443 only; IPs, localhost, .local/.internal and credentials refused (400). Unreachable/timeout target = 502/504 JSON with verdict do_not_pay, never charged.

3. 2 nov 2026, 17:44 UTC, Comprobación automática

   1 herramienta añadida.

   Detalles, 2 nov 2026, 17:44 UTC

   Añadidas 1

   • domain_intelSolo lectura

     [PAID $0.003 USDC per call via x402 on Base; errors are free] One call domain lookup for agents: DNS records A, AAAA, MX, NS, TXT, CAA (Cloudflare DoH), SPF parsed (all qualifier, lookup count, issues), DMARC parsed (policy, pct, rua, issues), RDAP summary (registrar, created, expires, updated, status, DNSSEC via rdap.org) and a 0-100 email-security score with letter grade and reasons. Param name = public domain (example.com; URLs are reduced to their host). IPs/internal names refused (400), NXDOMAIN 404, DNS upstream down 502: never charged.

4. 2 nov 2026, 05:48 UTC, Comprobación automática

   2 herramientas añadidas y 5 herramientas cambiadas.

   Detalles, 2 nov 2026, 05:48 UTC

   Añadidas 2

   • base_snapshotSolo lectura

     [PAID $0.003 USDC per call via x402 on Base; errors are free] Bundle for agents that check Base before acting: everything in /api/base/gas (base fee, priority-fee tiers, trend, congestion, USD cost of ETH transfer / ERC-20 transfer / swap incl. L1 data fee) + ETH/USD from Chainlink on Base, Coinbase spot and CoinGecko (median price, max-min deviationPct, 24h change) + network status: ok/degraded/stalled/sequencer-down from head block age, safe and finalized lag in blocks, and the Chainlink L2 sequencer uptime feed. One-line `summary` included. No params. Cached 5 s. Null = source unavailable (never invented). Errors are never charged.

   • base_token_batchSolo lectura

     [PAID $0.01 USDC per call via x402 on Base; errors are free] Batch version of /api/base/token for Base mainnet (chain 8453): pass up to 10 comma-separated contract addresses in `addresses` and get, per token, contract/EOA check, ERC-20 name/symbol/decimals/totalSupply, proxy implementation, owner() and renounced flag, well-known flag, and `market` from DexScreener (USD price, total liquidity, 24h volume/change, FDV, top pair; market=0 to skip). A bad token yields a per-item error instead of failing the call. Fixed $0.01 per call (vs $0.002 x 10). Metadata cached 1 h, market 60 s. Defaults to USDC, WETH, AERO. Invalid input = 400, never charged.

   Cambiadas 5

   • base_gas_pricedescripción
     Antes

     [PAID $0.001 USDC per call via x402 on Base; errors are free] Live gas snapshot for Base mainnet (chain 8453) read from public Base RPC: latest block number/time/utilization, base fee, eth_gasPrice, eth_maxPriorityFeePerGas, the last 10 blocks of base fees, slow/standard/fast EIP-1559 fee suggestions (10th/50th/90th percentile tips) in gwei and wei, and the estimated total cost (L2 execution + OP Stack L1 data-fee upper bound) of an ETH transfer, an ERC-20 transfer and a swap in ETH and USD (Chainlink ETH/USD on Base). No params. Cached 4 s. Errors are never charged.

     Después

     [PAID $0.001 USDC per call via x402 on Base; errors are free] Live gas snapshot for Base mainnet (chain 8453) read from public Base RPC: latest block number/time/utilization, base fee, eth_gasPrice, eth_maxPriorityFeePerGas, the last 10 blocks of base fees, slow/standard/fast EIP-1559 fee suggestions (10th/50th/90th percentile tips) in gwei and wei, and the estimated total cost (L2 execution + OP Stack L1 data-fee upper bound) of an ETH transfer, an ERC-20 transfer and a swap in ETH and USD (Chainlink ETH/USD on Base), plus a one-line `summary`, `baseFeeTrend` (rising/flat/falling vs 10-block average) and `congestion` (low/normal/high). No params. Cached 5 s, typically answers in well under 500 ms. Need ETH price + network health too? /api/base/snapshot ($0.003). Errors are never charged.

   • base_token_infodescripción y esquema de entrada
     Antes

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Inspect a token or any address on Base mainnet: contract vs EOA (incl. EIP-7702 delegation), bytecode size, ERC-20 name/symbol/decimals/totalSupply (raw and formatted; bytes32 symbols handled), proxy implementation (EIP-1967, beacon, ZeppelinOS/FiatToken), whether it is a well-known Base token (guards against spoofed symbols), and optionally the balance of `holder`. Read live from public Base RPC; metadata cached 1 h. All params optional: defaults to USDC on Base. Invalid input = 400, never charged.

     Después

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Inspect a token or any address on Base mainnet: contract vs EOA (incl. EIP-7702 delegation), bytecode size, ERC-20 name/symbol/decimals/totalSupply (raw and formatted; bytes32 symbols handled), proxy implementation (EIP-1967, beacon, ZeppelinOS/FiatToken), owner() and whether it is renounced, whether it is a well-known Base token (guards against spoofed symbols), `market` (DexScreener: USD price from the deepest Base pair, total liquidity, 24h volume and change, FDV, top pair; cached 60 s; market=0 to skip), and optionally the balance of `holder`. Read live from public Base RPC; metadata cached 1 h. Many tokens? /api/base/token-batch (10 per call). All params optional: defaults to USDC on Base. Invalid input = 400, never charged.

     • Parámetros nuevos: market
   • base_wallet_balancesdescripción
     Antes

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Balances of one address on Base mainnet in a single call: native ETH, the well-known tokens USDC, USDT, USDbC, DAI, WETH, cbETH, wstETH, AERO (non-zero only, or all with includeZero=true), plus up to 10 extra ERC-20 contracts you pass in `tokens` (symbol/name/decimals read on-chain). Also nonce, account type (EOA, EIP-7702 delegated EOA, or contract) and a USD total for ETH/WETH (Chainlink) and stablecoins. Read live from public Base RPC via Multicall3; cached 10 s. All params optional: defaults to a well-known public address. Invalid input = 400, never charged.

     Después

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Balances of one address on Base mainnet in a single call: native ETH, the well-known tokens USDC, USDT, USDbC, DAI, WETH, cbETH, wstETH, AERO (non-zero only, or all with includeZero=true), plus up to 10 extra ERC-20 contracts you pass in `tokens` (symbol/name/decimals read on-chain). Also an always-present `usdc` block (balance + USD, also when 0), `txCount` (= nonce, transactions sent), account type (EOA, EIP-7702 delegated EOA, or contract) and a USD total for ETH/WETH (Chainlink) and stablecoins. Read live from public Base RPC via Multicall3; cached 10 s. All params optional: defaults to a well-known public address. Invalid input = 400, never charged.

   • crypto_pricedescripción
     Antes

     [PAID $0.001 USDC per call via x402 on Base; errors are free] Live crypto prices for up to 25 coins per call: pass tickers in `symbols` (BTC,ETH,SOL,AERO,...; common tickers built in, others resolved by CoinGecko search to the largest coin with that ticker), CoinGecko `ids`, or one token `address` + `chain` (base default; ethereum, arbitrum, optimism, polygon, bsc, avalanche, solana). Returns price, market cap, 24h volume and 24h % change in each `vs` currency (usd default; up to 5, e.g. usd,eur,btc) plus last-updated time. Data: CoinGecko public API, cached 30 s; falls back to Coinbase spot rates (price only) if CoinGecko is unavailable. All params optional: with none it returns BTC and ETH in USD. Unknown coins = 404, invalid input = 400, never charged.

     Después

     [PAID $0.001 USDC per call via x402 on Base; errors are free] Live crypto prices for up to 25 coins per call: pass tickers in `symbols` (BTC,ETH,SOL,AERO,...; common tickers built in, others resolved by CoinGecko search to the largest coin with that ticker), CoinGecko `ids`, or one token `address` + `chain` (base default; ethereum, arbitrum, optimism, polygon, bsc, avalanche, solana). Returns price, market cap, 24h volume and 24h % change in each `vs` currency (usd default; up to 5, e.g. usd,eur,btc) plus last-updated time. Each USD price is cross-checked against Coinbase spot: `sources` {coingecko, coinbase} and `deviationPct` per coin, `maxDeviationPct` overall. Data: CoinGecko public API, cached 15 s; falls back to Coinbase spot rates (price only) if CoinGecko is unavailable. All params optional: with none it returns BTC and ETH in USD. Unknown coins = 404, invalid input = 400, never charged.

   • fx_ratedescripción
     Antes

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Foreign-exchange rates from one base currency (`from`, default USD) to a list of currencies (`to`, comma-separated, or "all"; default 14 majors incl. EUR, GBP, JPY, CNY, INR, KRW, VND), with `amount` converted. Live mode uses Coinbase public exchange rates (updated about every minute, 160+ ISO 4217 currencies plus XAU/XAG), falling back to exchangerate-api daily rates. With `date=YYYY-MM-DD` it returns the ECB reference rates for that day (Frankfurter, ~30 major currencies, back to 1999-01-04). All params optional: with none it returns USD to 14 major currencies. Invalid codes = 400, never charged.

     Después

     [PAID $0.002 USDC per call via x402 on Base; errors are free] Foreign-exchange rates from one base currency (`from`, default USD) to a list of currencies (`to`, comma-separated, or "all"; default 14 majors incl. EUR, GBP, JPY, CNY, INR, KRW, VND), with `amount` converted. Live mode uses Coinbase public exchange rates (cached 15 s, updated about every minute, 160+ ISO 4217 currencies plus XAU/XAG), falling back to exchangerate-api daily rates. With `date=YYYY-MM-DD` it returns the ECB reference rates for that day (Frankfurter, ~30 major currencies, back to 1999-01-04). All params optional: with none it returns USD to 14 major currencies. Invalid codes = 400, never charged.

5. 31 oct 2026, 17:24 UTC, Comprobación automática

   Inicio del seguimiento: 35 herramientas.

Preguntas frecuentes