APIbase.pro — The API Hub for AI Agents

Search flights, compare prices, track status, trade prediction markets — all via MCP. One endpoint. 33 tools. 5 providers. Pay per call.

Live Platform | Tool Catalog | MCP Endpoint | Health

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What is APIbase?

Production MCP server — universal API hub for AI agents. 45+ tools across travel, finance, e-commerce, weather, and more. Search flights (Amadeus, Sabre GDS), trade prediction markets (Polymarket), track crypto, check weather — with more providers shipping regularly. One endpoint, pay per call via x402 USDC micropayments. Auto-registration, zero setup. Covers the most popular API categories agents actually need: travel, financial data, local services, e-commerce, and marketing.

Built for AI agents, not humans. Every tool is designed for autonomous discovery, authentication, and invocation via the Model Context Protocol.

<a href="https://glama.ai/mcp/servers/whiteknightonhorse/APIbase"> <img width="380" height="200" src="https://glama.ai/mcp/servers/whiteknightonhorse/APIbase/badge?v=2" alt="APIbase MCP server" /> </a>

Why agents use APIbase

• One MCP endpoint — https://apibase.pro/mcp connects to 5 providers
• Real-time flight search — Amadeus + Sabre GDS, 500+ airlines, real prices
• Pay per call — x402 micropayments (USDC), no subscriptions, no minimums
• Auto-registration — agents get API keys instantly, zero human setup
• Production-grade — 13-stage pipeline, escrow payments, idempotent operations

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Quick Start (30 seconds)

For Claude Desktop / Cursor / Windsurf

Option A — Direct connection (Streamable HTTP):

{
  "mcpServers": {
    "apibase": {
      "url": "https://apibase.pro/mcp"
    }
  }
}

Option B — Via npm package (stdio bridge):

{
  "mcpServers": {
    "apibase": {
      "command": "npx",
      "args": ["-y", "apibase-mcp-client"]
    }
  }
}

For any MCP-compatible agent

MCP Endpoint:   https://apibase.pro/mcp
Tool Catalog:   https://apibase.pro/api/v1/tools
Discovery:      https://apibase.pro/.well-known/mcp.json

Register and get your API key

POST /api/v1/agents/register
Content-Type: application/json

{"agent_name": "my-agent", "agent_version": "1.0.0"}

Returns api_key (ak_live_...) and agent_id. Store the key securely — it is shown once.

Call tools via MCP

Connect to https://apibase.pro/mcp using the MCP protocol (Streamable HTTP transport). Authenticate with Authorization: Bearer ak_live_....

All tool calls follow the MCP tools/call method.

Call tools via REST

POST /api/v1/tools/{tool_id}/call
Authorization: Bearer ak_live_...
Content-Type: application/json

{"param1": "value1", "param2": "value2"}

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Flight Search Example

Ask your AI agent:

"Find the cheapest flights from New York to London next week"

The agent calls amadeus.flight_search and gets real-time prices from 500+ airlines:

{
  "origin": "JFK",
  "destination": "LHR",
  "departure_date": "2026-03-20",
  "adults": 1,
  "travel_class": "ECONOMY",
  "max_results": 5,
  "currency": "USD"
}

Returns itineraries with prices, airlines, stops, duration, baggage info — ready for the agent to compare and present.

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Available Tools (33)

Amadeus — Flight Search & Travel Data (7 tools)

Real-time flight data from the world's largest GDS. Search flights across 500+ airlines, check live status, find airports.

Tool	Description	Price
amadeus.flight_search	Real-time flight offers with prices, airlines, stops, duration	$0.035
amadeus.flight_price	Confirm final pricing for a flight offer	$0.020
amadeus.flight_status	Real-time flight status — delays, cancellations, gates	$0.005
amadeus.airport_search	Airport/city search by keyword or IATA code	$0.003
amadeus.airport_nearest	Nearest airports by geographic coordinates	$0.003
amadeus.airport_routes	All direct destinations from an airport	$0.003
amadeus.airline_lookup	Airline details by IATA or ICAO code	$0.002

Sabre GDS — Flight Search & Travel Data (4 tools)

Alternative flight search via Sabre Global Distribution System. Cross-reference prices with Amadeus for best deals.

Tool	Description	Price
sabre.search_flights	Real-time flight offers with prices between airports	$0.010
sabre.destination_finder	Cheapest flight destinations from an origin airport	$0.005
sabre.airline_lookup	Airline details by IATA or ICAO code	$0.002
sabre.travel_themes	Travel theme categories (beach, skiing, romantic, etc.)	$0.002

Polymarket — Prediction Markets (11 tools)

Search, analyze, and trade on prediction markets. Real-time odds, order books, and trading via CLOB.

Tool	Description	Price
polymarket.search	Search prediction markets	$0.0005
polymarket.market_detail	Market details with probabilities	$0.0005
polymarket.prices	Midpoint price for a token	$0.0005
polymarket.price_history	Historical price data	$0.0005
polymarket.get_orderbook	Order book depth	$0.0005
polymarket.trending	Trending markets by volume	$0.0005
polymarket.place_order	Place a limit order (GTC/GTD/FOK)	$0.001
polymarket.cancel_order	Cancel an open order	$0.001
polymarket.open_orders	Get open orders	$0.0005
polymarket.trade_history	Trade history	$0.0005
polymarket.balance	Balance and allowance	$0.0005

Hyperliquid — DeFi Perpetuals (6 tools)

On-chain perpetual futures exchange. Market data, order books, positions, and account info.

Tool	Description	Price
hyperliquid.market_data	Market data and funding rates	$0.002
hyperliquid.order_book	Order book depth	$0.003
hyperliquid.klines	Candlestick / OHLCV data	$0.003
hyperliquid.positions	User positions	$0.005
hyperliquid.account	Account summary	$0.005
hyperliquid.vault	Vault details	$0.005

AsterDEX — DeFi Perpetuals (4 tools)

Decentralized perpetual exchange on Asterism. Market data, order books, and candlestick charts.

Tool	Description	Price
aster.exchange_info	Exchange info and trading pairs	$0.001
aster.market_data	Market data and 24h stats	$0.002
aster.order_book	Order book depth	$0.003
aster.klines	Candlestick / OHLCV data	$0.003

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Payment

Field	Value
Protocol	x402 (HTTP 402 Payment Required)
Token	USDC on Base
Address	0x50EbDa9dA5dC19c302Ca059d7B9E06e264936480

No subscriptions. No minimums. Pay only for what you use.

Authentication

Method	Header	Format
API Key	Authorization	Bearer ak_live_<32hex>
x402 Payment	X-Payment	Base64-encoded payment receipt

Response Format

All responses include:

• X-Request-ID header for tracing
• JSON body with tool-specific data field
• Standard error codes on failure

Rate Limits

• Per-agent, per-tool token bucket
• Global tier limits: free (20 req/s), paid (100 req/s)
• 429 with Retry-After header on limit exceeded
• Redis-backed, fail-closed

Error Codes

HTTP	Code	Meaning
400	validation_error	Invalid parameters
401	unauthorized	Missing or invalid API key
402	payment_required	x402 payment needed
404	not_found	Tool or resource not found
406	not_acceptable	Wrong Accept header (use application/json)
429	rate_limited	Rate limit exceeded
500	internal_error	Server error
502	bad_gateway	Provider unavailable
503	service_unavailable	System not ready

MCP Discovery

GET /.well-known/mcp.json

{
  "name": "APIbase",
  "protocol": "MCP",
  "version": "1.0",
  "mcp_endpoint": "https://apibase.pro/mcp",
  "authentication": "x402"
}

Integrations

Connect APIbase to any AI platform:

Platform	Config location	Setup
Claude Desktop	claude_desktop_config.json	"url": "https://apibase.pro/mcp"
Cursor	.cursor/mcp.json	"url": "https://apibase.pro/mcp"
Windsurf	~/.codeium/windsurf/mcp_config.json	"serverUrl": "https://apibase.pro/mcp"
VS Code	.vscode/settings.json	"url": "https://apibase.pro/mcp"
Continue.dev	~/.continue/config.json	Streamable HTTP transport
OpenAI GPT	GPT Editor > Actions	Import https://apibase.pro/.well-known/openapi.json
OpenClaw	~/.openclaw/openclaw.json	"url": "https://apibase.pro/mcp"
MCP.so	mcp.so/server/apibase	Listed in directory

<details> <summary>Claude Desktop / Cursor</summary>

{
  "mcpServers": {
    "apibase": {
      "url": "https://apibase.pro/mcp"
    }
  }
}

</details>

<details> <summary>Windsurf</summary>

{
  "mcpServers": {
    "apibase": {
      "serverUrl": "https://apibase.pro/mcp"
    }
  }
}

</details>

<details> <summary>VS Code (Copilot)</summary>

{
  "mcp": {
    "servers": {
      "apibase": {
        "type": "http",
        "url": "https://apibase.pro/mcp"
      }
    }
  }
}

</details>

<details> <summary>Continue.dev</summary>

{
  "experimental": {
    "modelContextProtocolServers": [
      {
        "transport": {
          "type": "streamable-http",
          "url": "https://apibase.pro/mcp"
        }
      }
    ]
  }
}

</details>

<details> <summary>OpenAI GPT Actions</summary>

1. Go to GPT Editor > Actions tab
2. Click "Import from URL"
3. Enter: https://apibase.pro/.well-known/openapi.json
4. Set Authentication: API Key, Header Authorization, prefix Bearer
5. Save — all tools auto-discovered from spec </details>

<details> <summary>OpenClaw</summary>

Add to ~/.openclaw/openclaw.json:

{
  "provider": {
    "mcpServers": {
      "apibase": {
        "url": "https://apibase.pro/mcp"
      }
    }
  }
}

Or via CLI:

openclaw config set provider.mcpServers.apibase.url "https://apibase.pro/mcp"

</details>

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Architecture

• 13-stage pipeline: AUTH → IDEMPOTENCY → SCHEMA_VALIDATION → CACHE → RATE_LIMIT → ESCROW → PROVIDER_CALL → LEDGER → RESPONSE
• Fail-closed: Redis down = reject all requests, no silent degradation
• Idempotent: same request + same key = same result, no double charges
• Observable: Prometheus metrics, Grafana dashboards, structured logging

Self-Hosting

git clone https://github.com/whiteknightonhorse/APIbase.git
cp .env.example .env    # configure secrets
docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d

Requires: Docker, PostgreSQL 16, Redis 7.2, Node.js 20.

16 containers: API, Worker, Outbox, PostgreSQL, Redis, Nginx, Prometheus, Grafana, Loki, Promtail, Alertmanager, and exporters.

License

MIT