APIbase is a universal API hub for AI agents providing 61+ tools across travel, finance, weather, and more via a single MCP endpoint (https://apibase.pro/mcp) with pay-per-call micropayments (USDC on Base, no subscriptions or minimums).
Flight Search & Travel
Amadeus & Sabre GDS: Real-time flight offers, price confirmation, live flight status, airport/airline lookup, cheapest destinations, and travel themes (beach, skiing, romantic, etc.)
Aviasales: Flights, price calendars, popular routes, nearby alternative destinations, and hotel search
Places & Restaurants
Search 100M+ places worldwide (Foursquare) with venue details, ratings, tips, photos, and autocomplete
Weather
Current conditions, hourly/daily forecasts, historical data, active alerts, air quality index, location geocoding, and multi-location comparison (up to 5 at once)
Cryptocurrency & DeFi
Current prices (up to 50 coins), market overviews by category, detailed coin info, price history, trending coins, global market stats, DEX liquidity pools, token lookup by contract address
Perpetuals market data, order books, and account info for Hyperliquid and AsterDEX
Prediction Markets (Polymarket)
Search markets, view probabilities/price history/order books, discover trending markets, place/cancel limit orders (GTC, GTD, FOK), view open orders and trade history, check USDC balances
Integration
Designed for autonomous AI agent discovery and authentication via MCP; supports Claude Desktop, Cursor, OpenAI GPT Actions, and auto-registration for API keys
Production-ready with a 13-stage pipeline, idempotent operations, escrow payments, and fail-closed architecture
Provides tools for discovering over 100 million places and restaurants across 190+ countries, including capabilities for location search, venue details, user reviews, photos, and address autocomplete.
APIbase.pro — The API Hub for AI Agents
Search flights, find restaurants, discover events, browse movies, compare prices, track status, trade prediction markets — all via MCP. One endpoint. 100 tools. 19 providers. Pay per call.
Live Platform | Tool Catalog | MCP Endpoint | Health
What is APIbase?
Production MCP server — universal API hub for AI agents. 95 tools across travel, places, events, entertainment, music, health, finance, weather, and more. Search flights (Amadeus, Sabre GDS), find restaurants and places (Foursquare), discover events and concerts (Ticketmaster), browse movies and TV shows (TMDB), search music artists, albums, and recordings (MusicBrainz), discover fresh releases (ListenBrainz), find internet radio stations (RadioBrowser), look up nutrition data and drug safety (USDA, OpenFDA, NIH), get exchange rates, economic indicators, and treasury data (ECB, FRED, World Bank, US Treasury), 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, local services, events, entertainment, music, health, financial data, 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.
Why agents use APIbase
One MCP endpoint —
https://apibase.pro/mcpconnects to 15 providersReal-time flight search — Amadeus + Sabre GDS, 500+ airlines, real prices
Places & restaurants — Foursquare Places API, 100M+ places in 190+ countries
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
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.jsonRegister 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"}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.
Restaurant Search Example
Ask your AI agent:
"Find the best restaurants near me in Bangkok"
The agent calls foursquare.place_search and gets results from 100M+ places worldwide:
{
"query": "restaurant",
"near": "Bangkok,Thailand",
"sort": "rating",
"limit": 5,
"open_now": true
}Returns places with names, ratings, categories, distance, hours, price tier, and contact info.
Available Tools (100)
Finance / Banking / Financial Intelligence (6 tools)
Currency exchange rates, macroeconomic indicators, and banking utilities. 6 free open-data APIs: fawazahmed0 (200+ currencies), Frankfurter/ECB (~33 official fiat), FRED (816K+ US economic series), World Bank (16K+ global indicators), US Treasury Fiscal Data, and OpenIBAN (IBAN validation). All $0 upstream cost.
Tool | Description | Price |
| Exchange rates for 200+ fiat and crypto currencies | $0.002 |
| Official ECB reference rates for ~33 fiat currencies | $0.002 |
| FRED data — GDP, CPI, unemployment, interest rates | $0.005 |
| World Bank data — GDP, population, inflation for 200+ countries | $0.005 |
| US Treasury — interest rates, national debt, gold reserves | $0.003 |
| Validate IBAN and get bank data (BIC, name, city) | $0.001 |
Health & Nutrition — Government Data APIs (7 tools)
Free government health databases: USDA FoodData Central (350K+ foods, 150 nutrients), OpenFDA (drug adverse events, food recalls, drug labels), and NIH DSLD (200K+ supplement labels). All CC0/public domain.
Tool | Description | Price |
| Search 350K+ foods in the USDA database | $0.002 |
| Detailed nutrition data — up to 150 nutrients per food | $0.003 |
| FDA FAERS drug adverse event reports | $0.003 |
| FDA food enforcement and recall reports | $0.002 |
| Drug labeling: indications, dosage, warnings, interactions | $0.003 |
| Search 200K+ dietary supplement labels (NIH DSLD) | $0.002 |
| Full supplement label: ingredients, amounts, daily values | $0.003 |
Ticketmaster — Events & Entertainment (7 tools)
Discover concerts, sports, theatre, and festivals across 26+ countries. Real-time event data with pricing, venues, and ticket availability.
Tool | Description | Price |
| Search events by keyword, city, date, or category | $0.003 |
| Full event details: dates, venues, prices, images | $0.005 |
| Find events near geographic coordinates | $0.003 |
| Find events by artist or performer name | $0.005 |
| Get upcoming events at a specific venue | $0.003 |
| Get trending and popular events | $0.003 |
| Get all event classification categories | $0.001 |
TMDB — Movies & TV Discovery (7 tools)
The world's largest community-maintained entertainment database. 1M+ movies, 218K+ TV shows, 39 languages. Search, discover, get details, find streaming options.
Tool | Description | Price |
| Search movies, TV shows, and people by name | $0.002 |
| Full movie details: cast, crew, trailers, streaming, budget | $0.005 |
| Discover movies or TV by genre, year, rating, language | $0.005 |
| Trending movies, TV shows, or people (daily/weekly) | $0.002 |
| Movie recommendations based on a movie | $0.003 |
| Search actors/directors or get full filmography | $0.003 |
| Find streaming, rental, and purchase options by country | $0.003 |
Music / Audio Discovery (7 tools)
Search artists, albums, songs, and recordings across 50M+ entries (MusicBrainz CC0), discover fresh releases (ListenBrainz CC0), and find 40K+ internet radio stations (RadioBrowser Public Domain). All $0 upstream cost, no API keys needed.
Tool | Description | Price |
| Search 2M+ music artists by name | $0.003 |
| Artist details: tags, ratings, external links, life span | $0.003 |
| Search albums, singles, EPs across 50M+ recordings | $0.003 |
| Full release: tracklist, artist credits, labels | $0.003 |
| Search songs by title or artist | $0.003 |
| Discover recently released albums and singles | $0.003 |
| Search 40K+ internet radio stations by genre, country, language | $0.002 |
Jobs / Career Intelligence (6 tools)
US salary data, occupation taxonomy, EU skills framework, and global job listings. 4 providers: BLS (US government salary/employment data), O*NET (1,000+ occupations with skills/knowledge/abilities), ESCO (EU Skills/Competences/Occupations in 27 languages), and CareerJet (global job listings across 90+ countries). All $0 upstream cost.
Tool | Description | Price |
| US salary/employment timeseries from BLS — wage estimates by occupation and geography | $0.003 |
| Search O*NET occupation taxonomy — 1,000+ occupations with SOC codes | $0.003 |
| O*NET occupation details — skills, knowledge, abilities, technology, tasks | $0.003 |
| Search ESCO EU occupations and skills in 27 languages | $0.003 |
| ESCO occupation/skill details — essential skills, ISCO codes, relationships | $0.003 |
| Search global job listings — title, salary, company, location across 90+ countries | $0.003 |
Foursquare — Places & Restaurant Discovery (5 tools)
Search restaurants, hotels, cafes, attractions worldwide. 100M+ places in 190+ countries with ratings, tips, and photos.
Tool | Description | Price |
| Search places by query, location, category, with filtering | $0.025 |
| Full details: hours, rating, price, contact, categories | $0.025 |
| User tips and reviews for a place | $0.030 |
| Venue photos with size and classification options | $0.030 |
| Autocomplete suggestions for places and addresses | $0.020 |
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 |
| Real-time flight offers with prices, airlines, stops, duration | $0.035 |
| Confirm final pricing for a flight offer | $0.020 |
| Real-time flight status — delays, cancellations, gates | $0.005 |
| Airport/city search by keyword or IATA code | $0.003 |
| Nearest airports by geographic coordinates | $0.003 |
| All direct destinations from an airport | $0.003 |
| 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 |
| Real-time flight offers with prices between airports | $0.010 |
| Cheapest flight destinations from an origin airport | $0.005 |
| Airline details by IATA or ICAO code | $0.002 |
| 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 |
| Search prediction markets | $0.0005 |
| Market details with probabilities | $0.0005 |
| Midpoint price for a token | $0.0005 |
| Historical price data | $0.0005 |
| Order book depth | $0.0005 |
| Trending markets by volume | $0.0005 |
| Place a limit order (GTC/GTD/FOK) | $0.001 |
| Cancel an open order | $0.001 |
| Get open orders | $0.0005 |
| Trade history | $0.0005 |
| 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 |
| Market data and funding rates | $0.002 |
| Order book depth | $0.003 |
| Candlestick / OHLCV data | $0.003 |
| User positions | $0.005 |
| Account summary | $0.005 |
| Vault details | $0.005 |
AsterDEX — DeFi Perpetuals (4 tools)
Decentralized perpetual exchange on Asterism. Market data, order books, and candlestick charts.
Tool | Description | Price |
| Exchange info and trading pairs | $0.001 |
| Market data and 24h stats | $0.002 |
| Order book depth | $0.003 |
| Candlestick / OHLCV data | $0.003 |
CoinGecko — Crypto Market Data (9 tools)
Real-time and historical crypto data for 10,000+ coins. Prices, market overviews, trending assets, and DEX pool data via GeckoTerminal.
Tool | Description | Price |
| Real-time prices for any cryptocurrency | $0.001 |
| Market overview with sorting and filtering | $0.001 |
| Detailed coin info (market data, community, dev stats) | $0.002 |
| Historical price charts (up to 365 days) | $0.002 |
| Currently trending coins on CoinGecko | $0.001 |
| Global crypto market statistics | $0.001 |
| Search coins, exchanges, and categories | $0.001 |
| DEX liquidity pools via GeckoTerminal | $0.001 |
| Token info by contract address via GeckoTerminal | $0.001 |
Payment
Field | Value |
Protocol | x402 (HTTP 402 Payment Required) |
Token | USDC on Base |
Address |
|
No subscriptions. No minimums. Pay only for what you use.
Authentication
Method | Header | Format |
API Key |
|
|
x402 Payment |
| Base64-encoded payment receipt |
Response Format
All responses include:
X-Request-IDheader for tracingJSON body with tool-specific
datafieldStandard error codes on failure
Rate Limits
Per-agent, per-tool token bucket
Global tier limits: free (20 req/s), paid (100 req/s)
429withRetry-Afterheader on limit exceededRedis-backed, fail-closed
Error Codes
HTTP | Code | Meaning |
400 |
| Invalid parameters |
401 |
| Missing or invalid API key |
402 |
| x402 payment needed |
404 |
| Tool or resource not found |
406 |
| Wrong Accept header (use |
429 |
| Rate limit exceeded |
500 |
| Server error |
502 |
| Provider unavailable |
503 |
| 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 |
|
|
Cursor |
|
|
Windsurf |
|
|
VS Code |
|
|
Continue.dev |
| Streamable HTTP transport |
OpenAI GPT | GPT Editor > Actions | Import |
OpenClaw |
|
|
MCP.so | Listed in directory |
{
"mcpServers": {
"apibase": {
"url": "https://apibase.pro/mcp"
}
}
}{
"mcpServers": {
"apibase": {
"serverUrl": "https://apibase.pro/mcp"
}
}
}{
"mcp": {
"servers": {
"apibase": {
"type": "http",
"url": "https://apibase.pro/mcp"
}
}
}
}{
"experimental": {
"modelContextProtocolServers": [
{
"transport": {
"type": "streamable-http",
"url": "https://apibase.pro/mcp"
}
}
]
}
}Go to GPT Editor > Actions tab
Click "Import from URL"
Enter:
https://apibase.pro/.well-known/openapi.jsonSet Authentication: API Key, Header
Authorization, prefixBearerSave — all tools auto-discovered from spec
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"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 -dRequires: Docker, PostgreSQL 16, Redis 7.2, Node.js 20.
16 containers: API, Worker, Outbox, PostgreSQL, Redis, Nginx, Prometheus, Grafana, Loki, Promtail, Alertmanager, and exporters.