Registry
API

2s.io — pay-per-call APIs for AI agents

2s.io Domain-anchored . Structural trust only: the URN authority (2s.io) matches the catalog host that published this entry. This is NOT a cryptographic proof of ownership — it means the listing is self-consistent with the domain it claims. seen 7h ago

About

575 deterministic, pay-per-call data endpoints across 112 domains (patents, law, government, finance, geo/weather, vehicles, security, agriculture, energy, maritime, music, and more). x402 micropayments in USDC on Base/Solana — no signup, no API key. One free trial call per endpoint per hour.

Capabilities

  • agent
  • agriculture
  • ai
  • airport
  • aviation
  • bank
  • barcode
  • batch
  • bio
  • bls
  • book
  • business
  • calendar
  • census
  • chem
  • chinese
  • class
  • climate
  • clinical
  • code
  • convert
  • countdown
  • country
  • crypto
  • dev
  • dns
  • domain
  • earth
  • econ
  • edi
  • edu
  • email
  • energy
  • factcheck
  • feedback
  • finance
  • flight
  • food
  • fx
  • geo
  • geocode
  • github
  • gov
  • hash
  • health
  • html
  • image
  • inflation
  • ipinfo
  • iso
  • job
  • labor
  • law
  • license
  • lock
  • maritime
  • markets
  • medical
  • music
  • net
  • news
  • nonprofit
  • nutrition
  • occupation
  • paper
  • papers
  • park
  • patents
  • person
  • phone
  • poi
  • predict
  • product
  • property
  • pubsub
  • quakes
  • queue
  • recreation
  • registry
  • research
  • schedule
  • search
  • security
  • soil
  • space
  • sports
  • stocks
  • store
  • sunrise
  • tax
  • tcg
  • telecom
  • text
  • tides
  • time
  • timezone
  • tld
  • tls
  • trade
  • transcribe
  • travel
  • treasury
  • url
  • validate
  • vehicle
  • watchers
  • water
  • weather
  • wikidata
  • wikipedia
  • word
  • worldbank

Provenance

Discovered
Crawled directly
Identifier
urn:air:2s.io:api:catalog
Catalog host
2s.io · crawled directly
Anchor check
Passed
Last crawled
seen 7h ago

Structural trust only: the URN authority (2s.io) matches the catalog host that published this entry. This is NOT a cryptographic proof of ownership — it means the listing is self-consistent with the domain it claims. How trust works →