API Gateway — 17 APIs for AI Agents

Single MCP server exposing 17 production APIs behind one public domain.

All APIs are served at https://momentumbysamay.online/api/<apiname> (DNS → 167.71.22.95), a single nginx gateway with Let's Encrypt HTTPS. The Website Intelligence bundle runs on droplet 1; Marketing, Web Scraper, PDF and Email Verify are reverse-proxied from droplet 2.

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🚀 What This Is

An MCP (Model Context Protocol) server that wraps 17 real, deployed APIs into MCP tools. Any AI agent with MCP support can discover, call, and pay for these APIs programmatically.

How AI Agents Use It

1. Connect — Agents connect via MCP (stdio or HTTP)
2. Discover — Agent calls list_tools() → sees 20 tools
3. Pay — Agent calls generate_invoice + check_balance for crypto payment
4. Use — Agent calls any API tool, credits auto-deduct

Revenue Model

Channel	How It Makes Money	Status
🤖 AI Agents via MCP	Agents discover tools → generate invoice → send USDC → use APIs	✅ LIVE
🤖 AI Agents via .well-known/ai-plugin.json	OpenAI GPT Agents auto-discover APIs	✅ LIVE
RapidAPI Marketplace	$29–$199/mo subscriptions	📦 Ready — needs RapidAPI provider account
Apify Store	Per-run pricing	📦 Ready, not published
api.market	Global API marketplace	📦 Ready (Redis issues)

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📋 API Inventory — 17 APIs + 3 Payment Tools

🖥️ Website Intelligence (/api/website-intel) — 10 APIs

#	MCP Tool	API	Description	Price
1	website_to_markdown	Website → Markdown	Convert any web page to clean Markdown	$0.0005
2	website_metadata	Website Metadata	Meta tags, OG, Twitter Cards, headings, images, favicon	$0.0002
3	technology_detector	Technology Detector	CMS, frameworks, analytics, CDN, server tech	$0.0003
4	contact_extractor	Contact Extractor	Emails, phones, social links, addresses	$0.0005
5	ai_website_summary	AI Website Summary	Structured summary + optional AI narrative	$0.002
6	opengraph_extractor	OpenGraph Extractor	OG tags, Twitter Cards, social preview data	$0.0002
7	robots_txt_parser	Robots.txt Parser	Crawl rules, disallowed paths, sitemap URLs	$0.0002
8	sitemap_parser	Sitemap Parser	Discover & parse XML sitemaps	$0.0005
9	ssl_checker	SSL Checker	Certificate details, expiry, security grade	$0.0002
10	dns_lookup	DNS Lookup	A, AAAA, MX, NS, CNAME, TXT, subdomain discovery	$0.0002

Payment: Solana USDC ($USDC on Solana mainnet)

📊 Marketing API Bundle (/api/marketing) — 7 APIs

#	MCP Tool	API	Description	Price
11	marketing_contact_extractor	Marketing Contact Extractor	Emails, phones, social profiles, address	$0.0005
12	google_maps_reviews	Google Maps Reviews	Ratings, reviews, business metadata by Place ID or search	$0.001
13	business_metadata	Business Metadata	Category, founding year, hours, certifications, payments	$0.0003
14	seo_audit	SEO Audit	On-page SEO analysis with scoring (0–100)	$0.0005
15	ai_company_summary	AI Company Summary	AI-powered business overview + narrative	$0.002
16	marketing_technology_detector	Technology Detector	CMS, frameworks, analytics, hosting	$0.0003
17	citation_checker	Citation Checker	Directory presence across 10+ platforms + NAP scoring	$0.001

Payment: Solana USDC ($USDC on Solana mainnet)

💰 Payment/Management Tools — Free

#	MCP Tool	Description
18	get_pricing	Get current pricing for all APIs
19	generate_invoice	Generate Solana USDC payment invoice
20	check_balance	Check credit balance for an API key

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🔧 Quick Start

For AI Agents (MCP-native)

Configure the MCP server in your agent:

{
  "mcpServers": {
    "all-apis-gateway": {
      "command": "python3",
      "args": ["/path/to/mcp_server.py"],
      "env": {
        "WEBSITE_INTEL_BASE": "https://momentumbysamay.online/api/website-intel",
        "WEBSITE_INTEL_KEY": "YOUR_WEBSITE_INTEL_KEY",
        "MARKETING_BUNDLE_BASE": "https://momentumbysamay.online/api/marketing",
        "MARKETING_BUNDLE_KEY": "YOUR_MARKETING_KEY"
      }
    }
  }
}

For Developers (REST APIs directly)

Website Intelligence:

# Get an admin key (one-time)
curl -X POST https://momentumbysamay.online/api/website-intel/api/v1/auth/generate-key \
  -H "Content-Type: application/json" \
  -d '{"name":"my-app","tier":"admin"}'

# Call an API
curl -X POST https://momentumbysamay.online/api/website-intel/api/v1/dns-lookup \
  -H "X-API-Key: *** \
  -H "Content-Type: application/json" \
  -d '{"domain": "example.com"}'

# Get pricing
curl https://momentumbysamay.online/api/website-intel/api/v1/payments/pricing

# Generate payment invoice
curl -X POST https://momentumbysamay.online/api/website-intel/api/v1/payments/invoice \
  -H "Content-Type: application/json" \
  -d '{"api_key": "YOUR_KEY", "amount_usdc": 5.0}'

Marketing Bundle:

curl -X POST https://momentumbysamay.online/api/marketing/api/v1/contact-extractor \
  -H "X-API-Key: *** \
  -H "Content-Type: application/json" \
  -d '{"url": "https://example.com"}'

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💳 Crypto Payment Flow

Both API bundles accept Solana USDC for AI agents.

┌─────────────────────────────────────────────┐
│  Payment Flow                                 │
│                                               │
│  1. Agent: POST /payments/invoice             │
│     → Gets: {wallet_address, memo}            │
│                                               │
│  2. Agent: Send USDC to wallet + memo         │
│     (On Solana mainnet)                       │
│                                               │
│  3. Agent: POST /payments/verify              │
│     → Credits added to API key                │
│                                               │
│  4. Agent: Call any API with X-API-Key        │
│     → Credits auto-deduct per call            │
└─────────────────────────────────────────────┘

Treasury Wallet: Configured on the droplet (set TREASURY_WALLET env var)

Token: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (Solana USDC)

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📊 Rate Limits

Plan	Requests/sec	Daily Limit	Price
Free	2	100	$0
Starter	10	5,000	$29/mo
Growth	30	25,000	$79/mo
Enterprise	100	100,000	$199/mo

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🏗 Architecture

MCP Client (Claude Code, Cline, Hermes, any MCP agent)
    │
    ▼
┌──────────────────────────────┐
│  MCP Server (api-gateway)    │
│  - 20 tools                  │
│  - Auth injection            │
│  - Error handling            │
│  - Pricing/cost display      │
└──────┬───────────────────────┘
       │
       ├──→ momentumbysamay.online/api/website-intel: Website Intelligence (10 APIs + payments)
       │       POST .../api/website-intel/api/v1/{endpoint}
       │       POST .../api/website-intel/api/v1/payments/{invoice,verify,balance,pricing}
       │       GET  .../api/website-intel/.well-known/ai-plugin.json
       │
       └──→ momentumbysamay.online/api/marketing: Marketing API Bundle (7 APIs + payments)
               POST .../api/marketing/api/v1/{endpoint}
               POST .../api/marketing/api/v1/payments/{invoice,verify,balance,pricing}
               GET  .../api/marketing/.well-known/ai-plugin.json

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📦 Marketplace Publishing Guides

Ready-to-use docs for registering on each platform:

Marketplace	Guide	Status
OpenAI GPT Store	docs/gpt-store-guide.md	📝 Step-by-step
RapidAPI	docs/rapidapi-publish-guide.md	📝 Upload-ready spec + copy
Apify Store	See Apify console links below	🔴 Needs Store terms accepted
api.market	Pre-prepared OpenAPI specs at /home/node/api-market-specs/	🔴 Redis outage

🪙 Solana USDC Payments

Docs: docs/setup-wallet.md

Both bundles accept Solana USDC (token EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v):

• POST .../api/website-intel/api/v1/payments/invoice — generate wallet + memo
• POST .../api/website-intel/api/v1/payments/verify — verify payment → add credits
• POST .../api/website-intel/api/v1/payments/balance — check balance
• GET .../api/website-intel/api/v1/payments/pricing — per-endpoint pricing

Real Solana treasury wallet on BOTH bundles: F8tmJqiyEpcSbAbWef3XhsknsnW4gxb2gv6K8ZxEfgE

🌐 AI Agent Discovery Endpoints

Each bundle exposes AI agent discovery files under its domain path:

Endpoint	Description
.../api/<apiname>/.well-known/ai-plugin.json	OpenAI GPT Actions manifest
.../api/<apiname>/.well-known/openapi.json	OpenAPI spec for AI consumption
.../api/<apiname>/api/v1/payments/pricing	Per-endpoint USDC pricing
.../api/<apiname>/health	Health check (no auth)
.../api/<apiname>/status	Component status (no auth)

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📈 Monitoring

Endpoint	Description	Auth
GET /health	Service health check	None
GET /status	Component status (cache, auth, payments)	None
GET /metrics	Operational metrics (P50/P95/P99, cache hit rate)	Admin key
GET /dashboard	Usage dashboard HTML	Admin key

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🔐 Authentication

• Header: X-API-Key: <your-key> (recommended)
• Bearer: Authorization: Bearer <your-key>
• Query param: ?api_key=<your-key>

Tiers: free, starter, growth, enterprise, admin

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📜 License

Private — Samay Vashisht. All APIs and code proprietary.