MCP server

FreeTier Agent API

dev.pages.freetier-agent-api/freetier-agent-api

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, tokens. Setup recipes on website

Website

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

43

Token cost

About 8,449 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http freetier-agent-api https://freetier-agent-api.pages.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.freetier-agent-api]
url = "https://freetier-agent-api.pages.dev/mcp"

Gemini CLI

{"mcpServers":{"freetier-agent-api":{"httpUrl":"https://freetier-agent-api.pages.dev/mcp"}}}

Cursor

{"mcpServers":{"freetier-agent-api":{"url":"https://freetier-agent-api.pages.dev/mcp"}}}

VS Code

{"servers":{"freetier-agent-api":{"type":"http","url":"https://freetier-agent-api.pages.dev/mcp"}}}

Antigravity

agy mcp add freetier-agent-api https://freetier-agent-api.pages.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"freetier-agent-api","server_url":"https://freetier-agent-api.pages.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"freetier-agent-api","server_url":"https://freetier-agent-api.pages.dev/mcp"}

Tools

• agent_tools ~139 tokens
  1 free call per caller, then $0.001 USDC via x402 (paid in-band: params._meta["x402/payment"]). One search across ~13,000 agent tools: 4,259 MCP servers (awesome-mcp-servers, MIT) and ~8,900 x402 pay-per-call APIs (nohumans.directory, CC BY 4.0). Filters: q, type=mcp|x402, limit<=100.
• api_directory_sample ~41 tokens
  Free. Five live public APIs that need no key.
• apis_search ~212 tokens
  1 free call per caller, then $0.001 USDC via x402 (paid in-band: params._meta["x402/payment"]). Search 2,230 link-checked public & free-tier APIs (59 categories). Filters: q, category, auth=none, alive=yes, https=yes, kind, limit<=50.
• base_gas ~120 tokens
  1 free call per caller, then $0.0015 USDC via x402 (paid in-band: params._meta["x402/payment"]). Live Base mainnet gas price (gwei), latest block, and estimated ETH cost of a USDC transfer (~65k gas) and a plain ETH transfer (21k gas). When to use: Use base-gas for current Base gas price and the cos
• contract_abi ~316 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Base or Ethereum contract address -> ABI and function list: Sourcify verification (exact/partial match), contract name, compiler, ABI, function selectors + signatures, event topics; proxies (EIP-1967, Ze
• country ~155 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Country reference lookup by ISO2/ISO3/name: capital, population, area, continent, currency, phone prefix, TLD, languages, neighbours, time zones with current UTC offset and local time. When to use: Use c
• currency ~142 tokens
  1 free call per caller, then $0.002 USDC via x402 (paid in-band: params._meta["x402/payment"]). Currency conversion with official ECB euro reference rates (~30 currencies, daily). Params: from, to, amount. Also returns the rate date. When to use: Use currency for ECB reference exchange rates and con
• dataset_full ~69 tokens
  Dataset download: $1 USDC via x402. Buy the full Verified API Directory dataset (2,230 rows, JSON, CC BY 4.0 + MIT sources) in one call.
• dns ~266 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). DNS lookup over DNS-over-HTTPS (Cloudflare, Google fallback): A, AAAA, MX, NS, TXT, CNAME, CAA, SOA, SRV, HTTPS, DS... for one domain in one call, plus a mail-auth check (MX hosts, SPF, DMARC policy, war
• domain_whois ~211 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). Domain registration lookup via RDAP (the official whois successor, IANA bootstrap): registered or not, registrar + IANA id + abuse email, created / updated / expiry dates, days to expiry, domain age, EPP
• dump_agent_tools ~82 tokens
  Dataset download: $1 USDC via x402. Full dump: Agent Tool Directory, ~13,000 MCP servers + x402 APIs in one unified schema (JSON). MIT + CC BY 4.0 sources, attribution included.
• dump_llm_pricing ~73 tokens
  Dataset download: $1 USDC via x402. Full dump: list prices of ~3,000 AI models (LiteLLM table, MIT) + verified AI/dev free tiers with limits (JSON).
• dump_mcp_servers ~66 tokens
  Dataset download: $1 USDC via x402. Full MCP server directory dump (4,259 servers, JSON). Source awesome-mcp-servers (MIT).
• dump_world_reference ~79 tokens
  Dataset download: $1 USDC via x402. Full dump: 252 countries (GeoNames, CC BY 4.0), 418 time zones, ~14,000 public holidays 2026-2027 (python-holidays, MIT). JSON.
• dump_x402_services ~87 tokens
  Dataset download: $1 USDC via x402. Full dump: ~8,900 x402 pay-per-call APIs with category, price, chains and probe status (JSON). Data from nohumans.directory, CC BY 4.0, attribution required.
• email_verify ~214 tokens
  1 free call per caller, then $0.002 USDC via x402 (paid in-band: params._meta["x402/payment"]). Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS, disposable-domain flag (CC0 blocklist, ~9,900 domains), role-address flag (info@,
• ens ~284 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). ENS + Basenames resolver: name -> address (vitalik.eth, jesse.base.eth) or address -> verified primary name on Ethereum and Base (reverse record checked forward), plus optional text records (avatar, url,
• extract_json ~302 tokens
  1 free call per caller, then $0.01 USDC via x402 (paid in-band: params._meta["x402/payment"]). Messy text + JSON Schema in, clean JSON out. Uses a small LLM (Cloudflare Workers AI, Llama 3.1 8B, JSON mode) when available, else a deterministic key:value/regex extractor; the result is type-checked aga
• free_tiers ~116 tokens
  1 free call per caller, then $0.001 USDC via x402 (paid in-band: params._meta["x402/payment"]). Current free-tier limits for developer services (hosting, DB, auth, email, CI, monitoring) and AI/LLM APIs, with official source URLs. Filter: q, category.
• gas ~230 tokens
  1 free call per caller, then $0.0015 USDC via x402 (paid in-band: params._meta["x402/payment"]). Live gas prices across 5 EVM chains in one call (Ethereum, Base, Arbitrum, Optimism, Polygon): gas price in gwei, latest block, and the cost of an ETH transfer, an ERC-20/USDC transfer and a swap in nati
• geocode ~299 tokens
  1 free call per caller, then $0.0015 USDC via x402 (paid in-band: params._meta["x402/payment"]). Geocoding with OpenStreetMap Nominatim: address or place name -> coordinates (up to 5 matches, optional country filter), or lat+lon -> structured address (reverse). Structured address fields, country cod
• holidays ~149 tokens
  1 free call per caller, then $0.0015 USDC via x402 (paid in-band: params._meta["x402/payment"]). Public holidays for ~490 countries/territories for 2026 and 2027; optional date=YYYY-MM-DD answers is_holiday. When to use: Use holidays to list public holidays or test one date for a country.
• invoice_json ~617 tokens
  Send exactly one of url, text, or file_base64 + mime_type. 1 free call per caller, then $0.0075 USDC per page via x402 (paid in-band: params._meta["x402/payment"]). Invoice or receipt (PDF, PNG/JPEG/WebP image, or plain text) to structured JSON with a fixed schema: vendor (name, address, VAT ID, ema
• link_check ~139 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Check up to 20 URLs in one call: HTTP status, final URL after redirects, redirect count, latency, content-type, ok flag. When to use: Use link-check to test up to 20 URLs for broken links in one call.
• list_endpoints ~158 tokens
  Free. List every endpoint (core products first) with its price in USDC, description and example query. Core: invoice-json $0.0075/page, token-risk $0.005, tx-explain $0.0025, wallet-profile $0.005, contract-abi $0.0025, site-contacts $0.005, page-rag $0.0025, token-info $0.0025, ens $0.0025, tx-stat
• llm_cost ~219 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). Token & cost calculator: estimate tokens for a text (or pass input_tokens/output_tokens) and price it across several models using provider list prices (LiteLLM price table, MIT). Params: models (comma lis
• llm_pricing ~263 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). AI model list prices (USD per 1M input/output/cached tokens, context window, vision/tools/reasoning flags) for ~3,000 models across OpenAI, Anthropic, Google, Mistral, Groq, Bedrock, Azure, Together, Fire
• llm_pricing_sample ~50 tokens
  Free. List prices of five popular LLMs (USD per 1M tokens, LiteLLM table, MIT).
• mcp_servers ~171 tokens
  1 free call per caller, then $0.001 USDC via x402 (paid in-band: params._meta["x402/payment"]). Search 4,259 MCP (Model Context Protocol) servers by keyword, category, language (python/typescript/go/rust...), scope (cloud/local) and official flag. Returns repo URL and description.
• mcp_servers_sample ~49 tokens
  Free. Five sample MCP servers from the 4,259-server directory (MIT source).
• page_check ~174 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). One-call page audit for agents: HTTP status, redirects, latency, title, meta description, canonical, lang, Open Graph, JSON-LD types, headings, word count, plus agent-friendliness: robots.txt rules for 1
• page_markdown ~143 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Convert a public web page to clean Markdown (title, headings, paragraphs, lists, links, code), scripts/nav/footer removed, max ~60k chars. robots.txt respected. When to use: Legacy converter. page-rag gi
• page_meta ~155 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Fetch a public web page (robots.txt respected) and return title, meta description, canonical, Open Graph/Twitter tags, language, headings, link counts, HTTP status. When to use: Use page-meta for title,
• page_rag ~394 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Any public web page -> clean LLM-ready Markdown + RAG chunks in one call: main content via Mozilla Readability (no nav/ads/footers), absolute links, title/description/language/canonical/published+modifie
• robots_check ~157 tokens
  1 free call per caller, then $0.003 USDC via x402 (paid in-band: params._meta["x402/payment"]). Check whether a URL may be crawled per the site's robots.txt for a given user-agent. Returns allowed, matched rule, crawl-delay, sitemaps. When to use: Use robots-check before crawling a URL with your own
• site_contacts ~254 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). Company website -> one clean contact row: role emails only (info@, sales@ ...) with MX check, phones validated and normalized to E.164 with confidence, schema.org address/name, Danish CVR and EU VAT ids,
• ssl_cert ~197 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). TLS/SSL certificate check from public Certificate Transparency logs (Cert Spotter, crt.sh fallback): currently valid certificates for a hostname, newest first, with issuer, validity dates, days left, SAN
• token_info ~270 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). ERC-20 token lookup on Ethereum, Base, Arbitrum, Optimism or Polygon: name, symbol, decimals, total supply (raw + human), live USD price with confidence (DefiLlama) and FDV, for up to 10 token addresses
• token_risk ~280 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). Deterministic ERC-20 risk check on Base or Ethereum from public on-chain data only: privileged functions in bytecode (mint, blacklist, pause, fees, limits, trading switch), upgradeable proxy + implementat
• tx_explain ~399 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Base or Ethereum transaction hash -> plain JSON: status (success/failed/pending), block time, confirmations, from/to, ETH value, gas used and fee (incl. Base L1 fee), method selector + name, and every ER
• tx_status ~257 tokens
  1 free call per caller, then $0.0015 USDC via x402 (paid in-band: params._meta["x402/payment"]). Transaction status for polling: up to 10 tx hashes in one call, searched across Ethereum, Base, Arbitrum, Optimism and Polygon (or one chain): pending / success / failed / not_found, block, confirmations
• wallet_profile ~271 tokens
  1 free call per caller, then $0.005 USDC via x402 (paid in-band: params._meta["x402/payment"]). Base or Ethereum address -> profile in one call: EOA, contract or EIP-7702-delegated EOA; ETH balance; nonce (tx count); balances of major tokens (USDC, USDT, EURC, DAI, WETH, cbBTC/WBTC, USDbC); for cont
• x402_services ~180 tokens
  1 free call per caller, then $0.0025 USDC via x402 (paid in-band: params._meta["x402/payment"]). Search ~8,900 live x402 pay-per-call APIs (verified/unverified by nohumans.directory probes, CC BY 4.0): name, endpoint URL, category, price, chains, status, score. Filters: q, category, chain, max_price

Browse

• GitHub tools
• Cloudflare tools
• Domains and DNS
• Email
• Social media
• Payments

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