Integrations

Browse the operations

To see a listing's operations and their parameters, open it on AirnodeHub, or connect your agent to the MCP server at https://airnodehub.api3.org/mcp. Its list-listings tool returns every listing with its operations.

Each AirnodeHub listing calls its provider with one API3 key, or from one Airnode's IP address, so every team at the hackathon shares the provider's limits. A per-minute limit clears on its own, so retry after a minute. A daily or monthly quota that runs out fails every team's calls until it renews. Cache responses and do not poll in a loop.

The limits below are up to date for the hackathon, and each one is for all teams together.

Recommended for the hackathon

These listings have the most headroom: a large or no quota, or data that rarely changes, so a few calls are enough.

Crypto and DeFi

Listing	Data	Shared limit
Nodary	Cryptocurrency prices (including stablecoins) in USD, aggregated for 140+ assets, plus liquid staking exchange rates. One of the providers powering API3 feeds.	No limit. Nodary runs its Airnode itself.
Hyperliquid	Perpetual and spot markets, order books, candles, funding, staking, vaults and per-address account state.	About 60 calls a minute.
CoinPaprika	Volume-weighted prices, daily price history back to 2010, OHLCV for the last 90 days, markets and exchanges for over 11,000 cryptocurrencies.	1,000,000 calls a month.
CoinGecko	Current crypto prices, market caps and trending coins, with no price history.	About 8,500 calls for the two days, and 100 calls a minute.
DefiLlama	DeFi TVL, fees and revenue, DEX and options volumes, stablecoin supply, token prices and yield pools.	A rate limit, number not published. No quota.
DEX Screener	Pair search and pool lookup across DEX chains, plus token profiles, paid boosts and trending narratives.	300 calls a minute for pairs, search and tokens. 60 calls a minute for the other operations.
Morpho	Morpho V1 and V2 vaults, their adapters and markets: allocations, rates, rewards and oracle addresses.	750 calls a minute, then a 10-minute lockout. About 20,000 calls in an hour.
Kleros Scout	Community-curated address tags, token metadata and contract domains from Kleros Scout, with their curation state.	250 calls a minute, shared with the other users of the indexer.
dRPC	EVM chain reads on every network dRPC serves, plus indexed wallet balances and transaction history.	No quota and no rate limit.

Markets and finance

Listing	Data	Shared limit
Polymarket	Prediction markets and their implied odds, with order books, price history, open interest, holders and trades.	A rate limit for each API. Past it, Polymarket slows requests down and does not refuse them.
Benzinga	The newswire, the corporate calendar, analyst ratings, and insider and congressional filings.	4,000 calls a minute. No quota.
Frankfurter	Foreign exchange rates blended from central banks and official sources, current and back to 1999.	No quota. At most 2 calls over a long date range run at a time.
ECB Data Portal	Euro foreign exchange reference rates, interest rates, yield curves and euro area monetary data.	No published limit.

Flights, travel and places

Listing	Data	Shared limit
AeroDataBox	Live and historical flight status, airport departure boards, and airport, runway and aircraft data.	About 4,000 units for the two days: about 2,000 flight-status lookups or 4,000 airport and aircraft lookups. 2 calls a second.
OpenSky Network	Live aircraft positions, flight histories by aircraft or airport up to the previous day, and flight tracks from the last 30 days, from OpenSky's receiver network.	4,000 credits a day each for live states, flights and tracks. Most calls cost 1 to 4 credits, and a flight window older than 24 hours costs 30 credits or more.
Geoapify	Geocoding, places, boundaries, routing and elevation from OpenStreetMap and other open data. Credit "Powered by Geoapify".	3,000 credits a day. Most calls cost 1 credit. Route matrices, route plans and long isolines cost 100 credits or more.
GeoDB Cities	Cities, regions and countries, with population, coordinates and the hierarchy each one sits in.	1,000 calls a day, 1 call a second. The data rarely changes, so a few calls are enough.
PickPoint	Geocoding both ways, address search, routing and stop-order optimization from OpenStreetMap. Credit "© OpenStreetMap contributors".	500,000 calls a day.
Widgety	Tours from Cosmos Tours and G Adventures in the US market, with every departure date, price and availability, day-by-day itineraries, ship profiles, operators and ports.	No published limit.

Weather and natural events

Listing	Data	Shared limit
CustomWeather	Conditions, forecasts out to thirty days, marine and tides, and daily climate history back to 1973, plus air quality and official alerts for the US and Canada.	No published limit.
USGS Earthquakes	Worldwide earthquakes with time, place, magnitude and depth, and whether a seismologist has reviewed each one yet.	A rate limit, number not published. At most 20,000 events in a query.
NASA EONET	Wildfires, volcanoes, storms and floods as NASA tracks them, with where and when each was observed.	No published limit.

Sports, media and shopping

Listing	Data	Shared limit
PandaScore	Esports fixtures, results, standings and rosters across 15 titles, settled match by match.	1,000 calls an hour.
TwitterAPI.io	X profiles, tweets, followers, search and trends, read at a moment that can be pointed back to.	No quota, 20 calls a second.
OMDb	Plots, IMDb, Rotten Tomatoes and Metacritic scores, awards and box office, per film, series or episode. CC BY-NC: non-commercial use only.	1,000 calls a day. A title's record rarely changes, so a few calls are enough.
eBay	Live eBay listings by keyword, category, GTIN or product, with price, condition and seller, plus categories.	5,000 calls a day for listings and 5,000 calls a day for categories.

Companies and security

Listing	Data	Shared limit
Companies House	UK company register: profiles, officers, filings, owners, charges, insolvency and disqualified directors.	600 calls every 5 minutes.
GLEIF	Legal entities by name or LEI from the Global LEI Index, with their parent companies and reporting exceptions.	60 calls a minute.
NVD	NIST's vulnerability database: CVEs with CVSS scores, weaknesses, affected products and KEV status, plus CPE names.	50 calls every 30 seconds.
VPNAPI.io	Whether an IP address is a VPN, proxy, Tor node or private relay, with its location and network.	1,000 calls a day.

Health, research and reference

Listing	Data	Shared limit
openFDA	FDA drug adverse-event reports, labels, recalls and the National Drug Code directory, plus medical-device adverse-event reports.	240 calls a minute, 120,000 calls a day.
WHO Global Health Observatory	Mortality, disease burden, immunisation and life expectancy, as the World Health Organization publishes them.	No published limit.
Eurostat	European official statistics by dataset code: national accounts, prices, employment, energy, trade and demographics.	Fair-use quotas, numbers not published. A large extraction becomes asynchronous.
Europe PMC	Life-sciences papers, preprints and patents, with abstracts, citations, references and linked data.	500 calls a minute.
OpenAlex	Scholarly works in every discipline by DOI, PubMed ID or search, with citations, authors, institutions and counts.	1,000 searches or 10,000 filtered lists a day. Lookups by OpenAlex ID and autocomplete are free. A lookup by DOI or PubMed ID costs as much as a filtered list.
Open Library	The Internet Archive's book catalogue: works, the editions that print them, authors and subjects.	3 calls a second.
Wikidata	The structured knowledge base behind Wikipedia: items by name, the facts about each one with their sources, and its Wikipedia articles.	200 calls a minute.

Use at your own risk

These listings work, but their limits are low, or what they sign is not a fact that a contract can check. Their calls can start to fail when the teams together use up the quota.

Listing	Data	Why
Twelve Data	Quotes, bars and computed technical indicators for US stocks and ETFs, forex and crypto, from one interface.	800 credits a day and 8 credits a minute. Each symbol costs 1 credit.
TickerLayer	European and Middle East stocks, forex, crypto, commodities, indices, ETFs and sovereign bond yields, from one market API. No US stocks.	At most 3,000 calls every 30 days.
LunarCrush	Social interactions, sentiment and creators across crypto, stocks and every trending topic.	2,000 calls a day, but only 10 calls a minute for all teams.
Visual Crossing	Weather forecasts, current conditions, alerts and decades of history for any address or coordinate.	1,000 records a day and one call at a time, and each hour of history is one record.
BusMaps	Transit stops, timetables and journey plans where operators publish GTFS feeds, with live vehicles and disruptions where they feed them, plus car and walking routes, travel-time matrices and OpenStreetMap geocoding.	Low per-second, per-minute, daily and monthly limits.
Spoonacular	Recipes with their ingredients parsed, grocery products by barcode, restaurant menu items, and the nutrition of each.	50 points a day, and each call costs at least 1 point.
PokeAPI	Pokémon forms, species, evolution chains, moves and abilities, as the community maintains them.	No rate limit, but PokeAPI permanently bans an IP address that calls it too much without a cache.
OpenRouter	Chat completions from hosted language models, text only, with no sampling or tool parameters.	The same prompt gets a different answer each time, so the signature proves only what a model said once, not a fact.
Context7	Documentation and code examples for software libraries, pinned to a release where Context7 has indexed it, with each code example linked to its source.	The signature proves only which snippets Context7 picked once, not a fact. Its monthly quota can be low.