# Ntrs — Wrapped API

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>
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> | Environment | Landing | API | Docs |
> |---|---|---|---|
> | Production | paywithlocus.com | api.paywithlocus.com | docs.paywithlocus.com |
> | Beta | beta.paywithlocus.com | api.beta.paywithlocus.com | docs.paywithlocus.com |
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> Search and retrieve NASA technical reports, preprints, and conference papers to find scientific publications across NASA's research archives. Get detailed citation information and discovery capabilities across decades of NASA's technical documentation and scientific findings.

**Category:** Government & Public Data | **Website:** [ntrs.nasa.gov/search](https://ntrs.nasa.gov/search) | **Docs:** [parse.bot/marketplace/f4374557-eb8a-4904-8025-61c1106fe5eb/ntrs-nasa-gov-api](https://parse.bot/marketplace/f4374557-eb8a-4904-8025-61c1106fe5eb/ntrs-nasa-gov-api)

Pay-per-use API proxy. Each call is automatically billed to your wallet in USDC.

## Access

**Base URL:** `https://api.paywithlocus.com/api/wrapped/parse-ntrs-nasa-gov-api-f4374557/`
**Auth:** `Authorization: Bearer <LOCUS_API_KEY>`

## Endpoints

### get_citation

Point-lookup for a single NASA technical report by its numeric submission ID. Returns the complete metadata record: title, abstract, full author list with affiliations, publications, meetings, funding numbers, subject categories, and download availability. Use citation IDs obtained from search_citations results.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `citation_id` | string | Yes | The numeric submission ID of the citation (e.g., '20140013470'). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/parse-ntrs-nasa-gov-api-f4374557/get_citation \
  -H "Authorization: Bearer YOUR_LOCUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"citation_id":"<string>"}'
```

### search_citations

Full-text search over NASA technical reports. `query` matches title, abstract, and keywords; results can be narrowed by NASA center code and publication year range. Returns paginated results. Each Citation carries enough metadata for triage (title, abstract snippet, authors, STI type, center); use get_citation for full detail including meetings, funding, and download status.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `center` | string | No | Filter by NASA center code (e.g., 'JPL', 'GSFC', 'KSC', 'ARC', 'LaRC'). Empty string means no filter. |
| `page` | integer | No | Page number (1-based). |
| `page_size` | integer | No | Results per page, between 1 and 100. |
| `query` | string | No | Search query text (e.g., 'mars rover', 'climate change'). Empty string returns all results. |
| `year_end` | string | No | Filter by end year in YYYY format (e.g., '2024'). Empty string means no upper bound. |
| `year_start` | string | No | Filter by start year in YYYY format (e.g., '2020'). Empty string means no lower bound. |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/parse-ntrs-nasa-gov-api-f4374557/search_citations \
  -H "Authorization: Bearer YOUR_LOCUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"center":"<string>","page":"<integer>","page_size":"<integer>","query":"<string>","year_end":"<string>","year_start":"<string>"}'
```