What the API does and who it is for

Download All in One! is a single-endpoint-style REST API that resolves media URLs from dozens of platforms and returns direct download links or scraped metadata. Rather than building and maintaining separate scrapers for each site, a developer passes a source URL and gets back a downloadable link or media info. The target audience is builders of download managers, content archiving tools, social media schedulers that need asset retrieval, or personal projects that need a convenient wrapper around platform-specific scraping logic.

The API is hosted under the fastsaverapi.com domain and listed on a major API marketplace with 5,156 subscribers and a popularity score of 9.9 out of 10, suggesting significant real-world adoption.

Supported platforms

The declared platform list is extensive: TikTok, Douyin, CapCut, Threads, Instagram, Facebook, Kuaishou, ESPN, Pinterest, IMDB, Imgur, iFunny, Izlesene, Reddit, YouTube, Twitter, Vimeo, Snapchat, Bilibili, Dailymotion, Sharechat, Likee, LinkedIn, Tumblr, Hipi, Telegram, Getstickerpack, Bitchute, Febspot, 9GAG, oke.ru, Rumble, Streamable, TED, SohuTV, Pornbox, Xvideos, Xnxx, Xiaohongshu, Ixigua, Weibo, Miaopai, Meipai, Xiaoying, National Video, Yingke, Sina, Bluesky, SoundCloud, Mixcloud, Spotify, Zingmp3, and Bandcamp.

That breadth is the clearest value proposition here. Covering mainstream Western platforms alongside Chinese video platforms (Douyin, Bilibili, Ixigua, Weibo) and audio services (Spotify, SoundCloud, Mixcloud) in a single integration is unusual. That said, the API documentation gives no detail on which media types or quality options are returned per platform, so expect to probe each platform's response shape during development.

Endpoints

Only three endpoints are documented:

  • GET / — The primary download endpoint. Accepts a url query parameter and returns video or image download links. This covers the full multi-platform scope described above.
  • GET /get-info-rapidapi — Returns scraped media metadata and download URLs using a get-info parameter. This is semantically similar to the root endpoint but appears oriented toward retrieving structured info (title, thumbnail, available formats) rather than triggering a download directly.
  • GET / (UserInfo) — A secondary use of the root path that retrieves Instagram user profile information.

The overlap between two endpoints sharing the GET / path suggests the behavior is parameter-driven rather than strictly path-driven. Developers should consult the live documentation to understand how the router differentiates between a download request and an Instagram user info request — likely via a distinct query parameter name.

Pricing breakdown

The marketplace billing plans are as follows:

Plan Price Requests / month Rate limit
Basic $0 50
Pro $20 100,000 10 req/sec
Ultra $40 500,000 20 req/sec
Mega $99 1,500,000 28 req/sec

The free Basic tier provides only 50 requests per month — enough for initial testing and proof-of-concept work, but not for any production workload. At 50 requests you can verify that the API resolves URLs correctly from your target platforms, but you will exhaust the quota quickly.

The Pro plan at $20/month and 100,000 requests works out to $0.0002 per request, which is competitive for a scraping-backed API covering this many platforms. Ultra and Mega follow similar per-request economics while adding more headroom and a higher rate limit ceiling.

One thing worth noting: the provider's own documentation page lists different nominal prices ($10, $32, $69) from what the marketplace billing plans show ($20, $40, $99). Always verify the current price at checkout, as the marketplace tier is the authoritative billing source.

Performance: what the metrics actually mean

Two figures from the API's telemetry deserve serious attention before you commit to an integration:

Average latency: ~35,000 ms (35 seconds). This is extremely high for a REST endpoint. Latency this elevated is typical of APIs that must make real-time requests to third-party platforms, wait for their responses, and parse the result before returning to the caller. For interactive applications — a browser extension, a mobile app that shows a download button — a 35-second average wait is likely unacceptable without some form of asynchronous UX. For batch or background jobs, it is more tolerable, though it significantly reduces the effective throughput you can achieve within rate limits.

Average success rate: 71%. Roughly one in three requests fails. This could reflect platform-side blocks, content that has been removed, private accounts, or geographic restrictions. Whatever the cause, any production system using this API must implement retry logic, graceful error handling, and user-facing messaging for failed downloads. Do not assume a 200 HTTP status means a valid download link was returned — inspect the response body.

Practical use cases

  • Personal download tools where occasional failures and slower speeds are acceptable tradeoffs for broad platform coverage.
  • Content archiving pipelines running in the background overnight, where latency is not user-facing.
  • Multi-platform social dashboards that need to fetch asset previews from various networks without maintaining per-platform scraping code.
  • Research or journalism tools archiving public social media content, subject to the terms of service of each underlying platform.

Limitations and things to check before integrating

  • The 71% success rate means any SLA-sensitive product needs a fallback strategy.
  • The ~35-second latency makes synchronous, user-facing download flows painful without proper async handling.
  • No information is provided about which video qualities, resolutions, or audio bitrates are returned per platform — test your specific targets thoroughly.
  • Terms of service for the underlying platforms (YouTube, Instagram, Spotify, etc.) may restrict programmatic downloading; ensure your use case complies with those terms independently of this API's availability.
  • The documentation is sparse. There are no example request/response payloads published in the fact sheet, so exploratory testing on the free tier is essential before purchasing a paid plan.

Getting started

Sign up for the Basic (free) plan to receive API credentials. Send a GET / request with a url query parameter pointing to a supported media URL. Inspect the response to understand the schema before building around it. Test across the specific platforms you care about — don't assume all 50+ listed platforms behave identically. Once you've validated your core use cases, upgrade to Pro or Ultra depending on your expected monthly volume. The provider's website is fastsaverapi.com.