Osf ApiSAFE

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---
name: osf-api
description: "Manage open science projects and preprints via the OSF REST API"
metadata:
  openclaw:
    emoji: "🔓"
    category: "literature"
    subcategory: "fulltext"
    keywords: ["OSF", "Open Science Framework", "preprints", "open data", "reproducibility", "COS"]
    source: "https://osf.io/"
---

# OSF (Open Science Framework) API

## Overview

The Open Science Framework by the Center for Open Science provides infrastructure for the entire research lifecycle — project management, file storage, preprint hosting, and registrations. The API enables search, project creation, file management, and preprint discovery across OSF Preprints, PsyArXiv, SocArXiv, and 25+ community preprint servers. Free, no auth for read access.

## API Endpoints

### Base URL

```
https://api.osf.io/v2
```

### Search

```bash
# Search across all OSF content
curl "https://api.osf.io/v2/search/?q=replication+crisis&page[size]=20"

# Search preprints
curl "https://api.osf.io/v2/preprints/?filter[q]=machine+learning&page[size]=20"

# Filter by preprint provider
curl "https://api.osf.io/v2/preprints/?filter[provider]=psyarxiv&filter[q]=cognitive+bias"

# Search registrations (pre-registered studies)
curl "https://api.osf.io/v2/registrations/?filter[q]=randomized+controlled+trial"
```

### Projects

```bash
# Get public projects
curl "https://api.osf.io/v2/nodes/?filter[public]=true&filter[q]=neuroimaging"

# Get project details
curl "https://api.osf.io/v2/nodes/{node_id}/"

# Get project files
curl "https://api.osf.io/v2/nodes/{node_id}/files/"

# Get project contributors
curl "https://api.osf.io/v2/nodes/{node_id}/contributors/"
```

### Preprint Providers

| Provider | Filter | Disciplines |
|----------|--------|-------------|
| OSF Preprints | `osf` | Multidisciplinary |
| PsyArXiv | `psyarxiv` | Psychology |
| SocArXiv | `socarxiv` | Social sciences |
| EarthArXiv | `eartharxiv` | Earth sciences |
| BioHackrXiv | `biohackrxiv` | Bioinformatics |
| engrXiv | `engrxiv` | Engineering |
| MedArXiv | `medarxiv` | Medical sciences |
| NutriXiv | `nutrixiv` | Nutrition |

### Query Parameters

| Parameter | Description | Example |
|-----------|-------------|---------|
| `filter[q]` | Text search | `filter[q]=open+data` |
| `filter[provider]` | Preprint server | `filter[provider]=psyarxiv` |
| `filter[subjects]` | Subject filter | Subject taxonomy ID |
| `filter[date_created]` | Date filter | `filter[date_created][gte]=2024-01-01` |
| `page[size]` | Results per page (max 100) | `page[size]=50` |
| `page` | Page number | `page=2` |

## Response Structure (Preprint)

```json
{
  "data": [
    {
      "id": "abc12",
      "type": "preprints",
      "attributes": {
        "title": "Replication of the Ego Depletion Effect",
        "description": "We attempted to replicate...",
        "date_created": "2024-06-15T10:00:00Z",
        "date_published": "2024-06-16T08:00:00Z",
        "doi": "10.31234/osf.io/abc12",
        "is_published": true,
        "subjects": [["Social and Behavioral Sciences", "Psychology"]],
        "tags": ["replication", "ego depletion"]
      },
      "relationships": {
        "contributors": {"links": {"related": {"href": "..."}}},
        "primary_file": {"links": {"related": {"href": "..."}}}
      }
    }
  ]
}
```

## Python Usage

```python
import requests

BASE_URL = "https://api.osf.io/v2"


def search_preprints(query: str, provider: str = None,
                     page_size: int = 20) -> list:
    """Search OSF preprints across providers."""
    params = {
        "filter[q]": query,
        "page[size]": page_size,
    }
    if provider:
        params["filter[provider]"] = provider

    resp = requests.get(f"{BASE_URL}/preprints/", params=params)
    resp.raise_for_status()
    data = resp.json()

    results = []
    for item in data.get("data", []):
        attrs = item.get("attributes", {})
        results.append({
            "id": item.get("id"),
            "title": attrs.get("title"),
            "description": (attrs.get("description") or "")[:300],
            "doi": attrs.get("doi"),
            "date": attrs.get("date_published", "")[:10],
            "tags": attrs.get("tags", []),
            "url": f"https://osf.io/{item.get('id')}/",
        })
    return results


def search_registrations(query: str,
                         page_size: int = 20) -> list:
    """Search pre-registered studies on OSF."""
    params = {
        "filter[q]": query,
        "page[size]": page_size,
    }
    resp = requests.get(f"{BASE_URL}/registrations/", params=params)
    resp.raise_for_status()
    data = resp.json()

    results = []
    for item in data.get("data", []):
        attrs = item.get("attributes", {})
        results.append({
            "id": item.get("id"),
            "title": attrs.get("title"),
            "description": (attrs.get("description") or "")[:300],
            "date_registered": attrs.get("date_registered", "")[:10],
            "registration_schema": attrs.get("registration_supplement"),
        })
    return results


def get_project_files(node_id: str) -> list:
    """List files in an OSF project."""
    resp = requests.get(f"{BASE_URL}/nodes/{node_id}/files/")
    resp.raise_for_status()
    data = resp.json()

    providers = []
    for item in data.get("data", []):
        attrs = item.get("attributes", {})
        providers.append({
            "provider": attrs.get("provider"),
            "name": attrs.get("name"),
        })
    return providers


# Example: search psychology preprints
preprints = search_preprints("cognitive load", provider="psyarxiv")
for p in preprints[:5]:
    print(f"[{p['date']}] {p['title']}")
    print(f"  DOI: {p['doi']}")

# Example: find pre-registered clinical trials
regs = search_registrations("randomized placebo")
for r in regs[:5]:
    print(f"[{r['date_registered']}] {r['title']}")
```

## Use Cases

1. **Preprint discovery**: Search across 25+ preprint servers
2. **Pre-registration search**: Fin

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

What the source does

Filesystem

none-observed

Network

none-observed

Shell

none-observed

Dependencies

pinned

Secrets in source

none-found

Findings (0)

No findings outside the package's declared scope.

Gates applied: no_behavioural_pass.