Free Agent Tools
RemoteAbout Free Agent Tools
Free Agent Tools is a remote MCP server for AI agents, offering read-only, deterministic checks across business decisions and Japan travel, residency, tax, and safety topics. It requires no account or API key and also provides the tools as JSON APIs.
Key features
- 01Business idea and pitch assessments
- 02Pricing and SaaS savings estimates
- 03Advertising and App Store risk checks
- 04Japan trip and travel rule checks
- 05Japan residency, tax, and work checks
- 06Emergency alerts and postage guidance
Use cases
- 01Assessing a startup pitch or business idea
- 02Checking Japan travel costs and eligibility
- 03Reviewing Japan residency or part-time work rules
- 04Interpreting a Japanese emergency alert
MCP support
Exposes read-only tools through a remote MCP server over Streamable HTTP for AI agents. The tools are also available through plain HTTP JSON APIs.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://free-agent-tools.vercel.app/mcpclaude mcp add --transport http sean0007-free-agent-tools https://free-agent-tools.vercel.app/mcp{"mcpServers":{"sean0007-free-agent-tools":{"type":"http","url":"https://free-agent-tools.vercel.app/mcp"}}}Open in Cursor{"servers":{"sean0007-free-agent-tools":{"type":"http","url":"https://free-agent-tools.vercel.app/mcp"}}}Open in VS Code{"mcpServers":{"sean0007-free-agent-tools":{"type":"http","url":"https://free-agent-tools.vercel.app/mcp"}}}{"mcpServers":{"sean0007-free-agent-tools":{"serverUrl":"https://free-agent-tools.vercel.app/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
24| Parameter | Type | Required | Description |
|---|---|---|---|
| tam | number | Yes | Market size and proof that people buy, 1-10. |
| pain | boolean | No | Fixes a measurable pain? Default true. |
| money | boolean | No | Buyers have money to spend? Default true. |
| margin | number | Yes | Net margin potential, 1-10. |
| suffer | boolean | No | Founder willing to push through a long build? Default true. |
| advantage | number | Yes | Hard-to-copy edge (distribution, data, expertise), 1-10. |
| operations | number | Yes | How easily it runs without the founder, 1-10. |
Details
From the project READMEFree Agent Tools: free remote MCP server
A free, no-auth remote MCP server (streamable HTTP) with 31 small, deterministic tools your AI agent can call: startup pitch roasting, business idea scoring, price headroom, hotel OTA commission, open-source swaps for SaaS bills, Google Ads / Meta Ads notice risk, App Store 4.2 / 4.3 precheck, faceless YouTube reality check, AI infrastructure bottlenecks, viral attention patterns, Japan trip planning, Japan tax-free refund checking, Japan visa / residence permit fees, Japan luggage rules / forwarding cost, the Kyushu travel discount (九州ふっこう応援割), the Japan customs duty-free allowance on arrival, Japan pre-entry TB screening (JPETS), Japan dual pricing (resident vs non-resident prices), a Japan emergency alert decoder (緊急地震速報, tsunami, the level-named warnings since 2026-05-29, 避難指示, J-ALERT), a Japan permanent residence (永住) guideline check for the 2026-10-01 revision, a Japan international postage calculator (Japan Post prices now vs from 2027-02-01), a Japan re-entry deadline check (みなし再入国 / re-entry permit / pending renewal), and a Japan overseas dependents check (国外居住親族: age bands, ¥380,000 remittance rule, 2026 income limit), a Japan part-time work check (資格外活動許可: which statuses may take which jobs, 28-hour rule with rolling 7-day windows, the 2026-10-01 pachinko change for dependents), and a Japan driving check (Geneva IDP vs translation vs no route by country, 1-year and 3-month rules, 外免切替 after 2025-10-01).
Endpoint: https://free-agent-tools.vercel.app/mcp
Landing page with setup for every client: https://free-agent-tools.vercel.app
No API key, no account, nothing to install. Results are rules of thumb and educational estimates, not financial, legal, or investment advice, and every result carries a disclaimer for the user.
Add it
Claude Code
claude mcp add --transport http free-agent-tools https://free-agent-tools.vercel.app/mcp
Claude (desktop / web): Settings → Connectors → Add custom connector → paste the URL.
ChatGPT: Settings → Apps & Connectors → Advanced → Developer mode → Create → paste the URL, no authentication.
Cursor (~/.cursor/mcp.json)
{ "mcpServers": { "free-agent-tools": { "url": "https://free-agent-tools.vercel.app/mcp" } } }
VS Code (.vscode/mcp.json)
{ "servers": { "free-agent-tools": { "type": "http", "url": "https://free-agent-tools.vercel.app/mcp" } } }
Windsurf (~/.codeium/windsurf/mcp_config.json)
{ "mcpServers": { "free-agent-tools": { "serverUrl": "https://free-agent-tools.vercel.app/mcp" } } }
Stdio-only clients
{ "mcpServers": { "free-agent-tools": { "command": "npx", "args": ["-y", "mcp-remote", "https://free-agent-tools.vercel.app/mcp"] } } }
Tools
| Tool | What it does |
|---|---|
roast_pitch | Roast a startup pitch (five judges, one verdict, one change) |
score_business_idea_moat | Score a business idea (MOAT: fund, fix, or flee) |
price_headroom_check | Price headroom from close rate |
thirty_day_cash_check | Do customers fund growth? (30-day cash) |
email_list_reactivation_value | What is an old email list worth? |
hotel_ota_commission_calculator | Hotel OTA commission and direct-booking savings |
saas_self_host_savings | Replace paid SaaS with open source: savings and payback |
list_open_source_saas_alternatives | List open-source alternatives to paid SaaS |
ads_policy_notice_risk_check | Google Ads / Meta Ads notice risk card |
app_store_wrapper_precheck | App Store 4.2 / 4.3 / metadata rejection precheck |
faceless_youtube_reality_check | Faceless / AI YouTube channel reality check |
ai_infrastructure_bottlenecks | AI infrastructure bottlenecks explained |
ai_bottleneck_quiz | Which AI bottleneck constrains your stack? (quiz) |
viral_attention_patterns | How attention spreads online |
viral_attention_quiz | Do you chase, invent, or read attention? (quiz) |
japan_trip_plan | Japan trip plan by city and month |
japan_trip_options | Japan Trip Brain: supported cities, months, travelers |
japan_tax_free_refund_check | Japan tax-free shopping refund check (from 2026-11-01) |
japan_visa_fee_check | Japan visa / residence permit fee (from 2026-10-01) |
japan_luggage_check | Japan suitcase check: Shinkansen oversized-baggage rule + Yamato forwarding cost |
kyushu_travel_discount_check | Kyushu travel discount (九州ふっこう応援割 2026): savings + date/channel eligibility |
japan_customs_allowance_check | Japan customs duty-free allowance on arrival: within/over, duty estimate in yen, cash declaration |
japan_tb_screening_check | Japan pre-entry TB screening (JPETS): TB Clearance Certificate needed? Indonesia from 2027-01-04, exemptions, Panel Clinics |
japan_dual_pricing_check | Japan dual pricing (二重価格): resident vs non-resident prices at Himeji Castle, Nijo Castle (FY2027), Kyoto bus, Kagoshima, Kitakyushu… Full tracker table and checker: https://japan-dual-pricing.vercel.app |
japan_emergency_alert_decode | Japanese emergency alert decoder: 緊急地震速報 EEW (and cancellations), tsunami, レベル4危険警報 and the 2026-05-29 renaming, 避難指示, Nankai Trough, J-ALERT; meaning, level, what to do, 14-language official names |
japan_permanent_residency_check | Japan permanent residence (永住) guideline revised 2026-10-01: which version applies by filing date, spouse 3+1 → 5+3 years from 2027-04-01, 3-year visa transition, 6-month / 2.5-year absence rule, B1 |
japan_international_postage_check | Japan Post international mail prices now vs from 2027-02-01: EMS (1 kg bands), air / surface parcels, small packets, International Air Packet, letters, postcards; any country, cheapest option |
japan_reentry_deadline_check | When must a foreign resident be back in Japan: deemed re-entry (1 year or card expiry, SPR 2 years, not extendable abroad), regular re-entry permit, 2-month special period while a renewal is pending |
japan_overseas_dependents_check | Claiming a relative living outside Japan as a dependent (国外居住親族): age 16-29 / 30-69 / 70+ rules, ¥380,000 remittance test, 2026 ¥620,000 income limit, deduction amount, tax saving, proof documents |
japan_parttime_work_check | Can a foreign resident do this part-time job / side gig on their Japanese status (資格外活動許可): comprehensive 28-hour vs individual permission, rolling 7-day hours, students' 8 h/day vacation rule, banned 風俗営業 venues, 2026-10-01 pachinko/game-center change for Dependent holders |
japan_driving_check | Can you drive in Japan on a foreign license: Geneva IDP vs Japanese translation vs no route by country (NPA list, May 2026), last driving day (1 year from landing, IDP validity, 3-month rule), 外免切替 eligibility, test exemptions (incl. US states), documents, fees |
All tools are read-only and idempotent.
Plain HTTP APIs
Every tool is also a free JSON API (GET or POST, CORS open, OpenAPI 3.1, /.well-known/ai-plugin.json, llms.txt):
Test it
npx @modelcontextprotocol/inspector --cli https://free-agent-tools.vercel.app/mcp --transport http --method tools/list
Develop
npm install
npm run dev # http://localhost:3000/mcp
npm test # schema and wiring tests
npm run e2e # real MCP client: list tools and call every tool (defaults to production)
Built with Next.js and mcp-handler (MCP SDK v2; serves the
2026-07-28 spec natively with stateless fallback for 2025-era Streamable HTTP clients). Deployed on Vercel.
License
MIT
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.