# James Webb Space Telescope API

**Canonical:** https://apis.io/providers/james-webb-space-telescope-api/  
**Website:** https://jwstapi.com  
**APIs profiled:** 1

A free, third-party API for accessing James Webb Space Telescope data sourced from the Mikulski Archive for Space Telescopes (MAST). The API provides access to JWST images, observations, and data filterable by program, type, and other parameters. It is built by an independent engineer (not an official NASA, ESA, or CSA service) and data is available under CC-BY 4.0. Authentication is via API key obtained at signup.

## Kin Score — 13.1 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 13.1).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **James Webb Space Telescope API** — Programmatic access to JWST images and observations sourced from the MAST archive. Filter and query by program, observation type, and other attributes. Requires an API key obtai...

## Security (1)

- **James Webb Space Telescope Api Domain Security** — TLSv1.3

## Plans (1)

- **James Webb Space Telescope Api Plans Pricing**

## Tags

Astronomy, JWST, NASA, Science, Space

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/james-webb-space-telescope-api/). Scores are computed from the provider's own public artifacts under a published rubric.