ISS Location API (Open Notify)
Open Notify is a free, open-source project by Nathan Bergey that exposes real-time NASA and ISS data as simple REST endpoints. The service provides the current latitude and longitude of the International Space Station (updated every five seconds as the ISS travels at roughly 28,000 km/h), a count and roster of all humans currently in space across all spacecraft, and historical ISS pass-time predictions for any point on Earth. All endpoints are unauthenticated, return JSON, and are free to use without registration. The ISS pass-time prediction endpoint has been retired; the location and astronaut endpoints remain live and operational.
ISS Location API (Open Notify) publishes 3 API contracts indexed on the APIs.io network, including Astronauts API, ISS Location API, and 1 more. Tagged areas include Space, ISS, International Space Station, NASA, and Location.
The ISS Location API (Open Notify) catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
ISS Location API (Open Notify)’s developer surface includes documentation and 11 more developer resources.
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Space and Satellite (operators, earth observation, ground segment) | undeclared | - | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 1
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 3
Individual APIs this provider publishes, each with its own machine-readable definition.
People in Space Right Now
Returns a JSON object containing the total count of humans currently in space and an array of crew member objects, each with the person's name and the spacecraft they are aboard...
ISS Location API (Open Notify) Astronauts API
Endpoints for retrieving information about humans currently in space
ISS Location API (Open Notify) ISS Location API
Endpoints for retrieving the current position of the International Space Station
Open Collections 2
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
ISS Location API (Open Notify) Astronauts API
OPEN COLLECTIONAPI (Open Notify) Astronauts ISS Location API
OPEN COLLECTIONISS Location API (Open Notify) pricing
Not yet checked against ISS Location API (Open Notify)'s own pricing page. Compiled by API Evangelist on 2026-06-13; confirm before you rely on a figure. A free plan or tier is listed.
| Plan | Price |
|---|---|
| Free free | Free |
Plan details, limits and sources →
Rate limits
- ISS Location Polling Cadence: 1 requests per second
- People in Space Polling Cadence: 12 requests per minute
Compiled by API Evangelist, not yet checked against ISS Location API (Open Notify)'s documentation. Rate-limit details →
Billed by: request · FinOps profile →
Pricing Plans 1
Published pricing tiers and plan structures.
Iss Api Plans
PLANSRate Limits 1
Documented rate limits and quota policies.
Iss Api Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
FinOps 1
Cost, billing, and metering signals for API financial operations.
Iss Api Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
context Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
JSON Schema 2
Standalone JSON Schema definitions for this provider's data models.
Astronauts Response
JSON SCHEMAISS Location Response
JSON SCHEMAExamples 2
Example request and response payloads for these APIs.
Astronauts Response
EXAMPLEIss Location Response
EXAMPLESecurity Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Source (apis.yml)
ISS Location API (Open Notify) — frequently asked questions
Does ISS Location API (Open Notify) have an API?
Yes. APIs.io lists 3 APIs from ISS Location API (Open Notify), including People in Space Right Now, ISS Location API (Open Notify) Astronauts API and ISS Location API (Open Notify) ISS Location API.
Is there an OpenAPI specification for the ISS Location API (Open Notify)?
Yes. APIs.io indexes 2 OpenAPI specifications for ISS Location API (Open Notify), each linked for download from this page.
How much does the ISS Location API (Open Notify) cost?
APIs.io lists 1 pricing plan for ISS Location API (Open Notify), with each plan's price, limits and inclusions under Pricing on this page.
Is the ISS Location API (Open Notify) ready for AI agents?
ISS Location API (Open Notify) has a Kin Score of 24.9 out of 100 (emerging) and an Agent Readiness score of 25.5 (agent-aware), scored by API Evangelist on 2026-11-06.
Work with this as data
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