Arcsecond Astronomy API

Name: Arcsecond Astronomy API API
Brand: Arcsecond Astronomy API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentData EnrichmentData TransformationapiKey12 EndpointsREST

For Agents

Look up exoplanets, observing sites, telescopes, satellites, and astronomical objects from a unified astronomy data API.

Connect the Arcsecond Astronomy API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Arcsecond Astronomy API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Install Jentic One Beta (Self-Hosted)

Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with Arcsecond Astronomy API API.

Look up exoplanets by name and list known planetary systems

Resolve an astronomical object by name and return its catalogued properties

List worldwide observing sites and fetch site detail by UUID

List telescopes and pair them with their host observing site

GET STARTED

Start building with Arcsecond Astronomy API API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for Arcsecond Astronomy API, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for Arcsecond Astronomy API, keeping it validated and agent-ready. Arcsecond is a unified REST API for world-wide astronomy data spanning exoplanets, observing sites, telescopes, instruments, observations, satellites, and astronomical objects. The API is used by amateur and professional astronomy tooling, planetarium software, and research dashboards. Authentication is via a token-based scheme, with separate registration and login endpoints for issuing tokens.

Use Cases

Patterns agents use Arcsecond Astronomy API API for, with concrete tasks.

★ Exoplanet Lookup for Educational Tools

Surface known exoplanets and their host-star data inside an educational app or planetarium-style tool. Schools and amateur astronomy products use Arcsecond as a single source for exoplanet catalogues without scraping multiple research databases. GET /exoplanets/ lists the catalogue and GET /exoplanets/{name}/ returns the detail record for a specific planet.

Call GET /exoplanets/{name}/ with the user's planet name and return the host star, orbital period, and discovery year.

Observing-Site Directory for Trip Planning

Plan an astronomy trip by looking up observing sites, their coordinates, and their associated telescopes. Astronomy tour operators and dark-sky tools use Arcsecond to render maps and pick a site that matches the user's altitude or hemisphere preferences. The observing-sites and telescopes endpoints expose this directory.

Call GET /observingsites/ and filter by the user's hemisphere, then return the matching sites and their telescopes.

Astronomical Object Resolution

Resolve a free-text astronomical object name into a catalogued record with coordinates and metadata. Stargazing apps use this to translate a user's typed query into a record they can render in a sky chart. GET /objects/{name}/ accepts the canonical or common name and returns the resolved object.

Call GET /objects/{name}/ with the user's typed name and return the resolved object's coordinates and catalogue identifier.

AI Agent Astronomy Assistant via Jentic

An assistant agent answering 'what is Kepler-22b' or 'where is the largest telescope in Chile' can call Arcsecond through Jentic to ground its answers in real catalogue data. The agent searches for the lookup operation, loads the schema, and executes the call without managing the token. Jentic resolves the token from its credential vault.

Use Jentic search 'look up an exoplanet', load the schema for GET /exoplanets/{name}/, then execute with the user's planet name and return the catalogued properties.

Key Endpoints

12 endpoints — jentic publishes the only available openapi specification for arcsecond astronomy api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/auth/login/

POST

/auth/register/

GET

/exoplanets/

List all exoplanets

GET

/exoplanets/{name}/

Get a specific exoplanet

GET

/objects/{name}/

Resolve an astronomical object by name

GET

/observingsites/

List observing sites worldwide

GET

/observingsites/{uuid}/

Get a specific observing site

GET

/telescopes/

List telescopes

POST

/auth/login/

POST

/auth/register/

GET

/exoplanets/

List all exoplanets

GET

/exoplanets/{name}/

Get a specific exoplanet

GET

/objects/{name}/

Resolve an astronomical object by name

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Arcsecond auth tokens are stored encrypted in the Jentic vault. Agents receive scoped access — the raw token never enters the agent's context and is injected at request time.

Intent-based discovery

Agents search by intent (e.g. 'look up an exoplanet') and Jentic returns matching Arcsecond operations with their input schemas, so the agent can call the right endpoint without browsing docs.

Time to first call

Direct Arcsecond integration: a half day to handle registration, token exchange, and the trailing-slash URL convention. Through Jentic: under 30 minutes — search, load schema, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

NASA APOD API

NASA's Astronomy Picture of the Day pairs naturally with Arcsecond's catalogue lookups for educational astronomy apps.

Use NASA APOD for the daily image and accompanying narrative; call Arcsecond when the agent needs structured catalogue data for the objects in view.

Complementary

NASA NeoWs API

Near-Earth object tracking pairs with Arcsecond's deeper catalogue of telescopes and observing sites.

Use NeoWs for asteroid close-approach data; call Arcsecond when the agent needs telescopes or sites that could observe the object.

Complementary

WeatherAPI

Astronomy trip planning needs cloud-cover and seeing forecasts alongside the Arcsecond observing-site directory.

Pair with Arcsecond when the agent recommends a site to observe from tonight — Arcsecond gives the site, WeatherAPI gives the forecast.

FAQs

Specific to using Arcsecond Astronomy API API through Jentic.

Why is there no official OpenAPI spec for Arcsecond Astronomy API?

Arcsecond does not publish an OpenAPI specification on api.arcsecond.io. Jentic generates and maintains this spec so that AI agents and developers can call Arcsecond Astronomy API via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the Arcsecond API use?

Arcsecond uses token-based authentication. Register via POST /auth/register/ or log in via POST /auth/login/ to receive a token, then send it on subsequent requests. Through Jentic, the token is stored encrypted in the vault and never enters the agent's context.

Can I list every exoplanet catalogued in Arcsecond?

Yes. Call GET /exoplanets/ to list the catalogue, and GET /exoplanets/{name}/ to fetch the detail record for a specific exoplanet including its host star and orbital characteristics.

How do I find a telescope or observing site?

Use GET /telescopes/ to list telescopes and GET /observingsites/ or GET /observingsites/{uuid}/ to look up a specific site. Telescopes carry a reference to their host site so you can resolve the pair in two calls.

What are the rate limits for the Arcsecond API?

The OpenAPI spec does not declare explicit rate limits. Arcsecond applies per-token fair-use limits — sustained traffic above a few requests per second can be throttled. Contact Arcsecond for higher quotas in production workloads.

How do I look up an exoplanet through Jentic?

Install Jentic with pip install jentic, search for 'look up an exoplanet', load the schema for GET /exoplanets/{name}/, then execute with the planet name. Jentic injects the auth token automatically.