bsky-saves 0.6.3

BlueSky bookmarks ingestion toolkit: fetch, hydrate (article text, self-thread context, images), and merge into a JSON inventory.

bsky-saves

A toolkit for ingesting your own BlueSky bookmarks ("saves") into a portable JSON inventory, with optional hydration of linked article text, self-thread context, and CDN image downloads.

Since v0.5.0 the package also ships the bsky-saves-gui static web app inside the wheel; bsky-saves serve --gui mounts it at http://127.0.0.1:47826/ so a pipx install bsky-saves user can open a browser-based UI without provisioning anything else.

Why

The BlueSky web client lets you bookmark posts, but the saves are siloed inside the app. This tool pulls them out into a single JSON file you can read, archive, mirror, or build on top of.

It works for accounts hosted on bsky.social and on third-party AT Protocol PDSes (e.g. eurosky.social), because the bookmark fetch goes PDS-direct rather than through the AppView.

Install

pip install bsky-saves

Upgrade

If you installed with pipx (recommended for CLI tools):

pipx upgrade bsky-saves

If you installed with pip:

pip install --upgrade bsky-saves

If bsky-saves serve is currently running, restart it after upgrading so the new helper version takes effect — the GUI's outdated-helper banner keeps showing until the running daemon reports the upgraded version.

v0.6.x → v0.6.2: the GUI will prompt for a one-time pairing the first time it connects to the upgraded helper. See Pairing.

Authenticate

Set two env vars from a BlueSky app password:

export BSKY_HANDLE=alice.bsky.social
export BSKY_APP_PASSWORD=xxxx-xxxx-xxxx-xxxx
# Required only for accounts hosted on a third-party PDS:
export BSKY_PDS=https://eurosky.social

The default BSKY_PDS is https://bsky.social.

Use

# Pull all bookmarks → ./saves_inventory.json
bsky-saves fetch --inventory ./saves_inventory.json

# Retention mode controls what happens to bookmarks no longer on the server.
#   keep-lost (default) — keep posts removed outside your control (deleted /
#                         blocked), drop bookmarks you deliberately un-saved.
#   --sync     (= --mode sync)     — keep only live posts; also drops posts
#                                    deleted/blocked (unknown-status kept).
#   --keep-all (= --mode keep-all) — keep everything, including your un-saves.
bsky-saves fetch --inventory ./saves_inventory.json --keep-all

# Hydrate every external-link bookmark with the linked article's text.
bsky-saves hydrate articles --inventory ./saves_inventory.json

# Hydrate every bookmark with same-author self-thread descendants.
bsky-saves hydrate threads --inventory ./saves_inventory.json

# Decode each save's post-creation timestamp from its rkey (offline).
bsky-saves enrich --inventory ./saves_inventory.json

# Download cdn.bsky.app images referenced by the inventory into ./images/
# (flat layout). Records url→path mappings as `local_images` on each entry.
# Use --uris FILE (newline-delimited at:// URIs) to limit to a subset.
bsky-saves hydrate images --inventory ./saves_inventory.json --out ./images

# Run a local HTTP helper daemon for bsky-saves-gui (CORS bridge).
# Binds 127.0.0.1:47826; pass --allow-origin for self-hosted GUI deployments.
bsky-saves serve

# Same daemon, plus serve the bundled GUI itself at http://127.0.0.1:47826/.
bsky-saves serve --gui

All commands are safe to re-run: hydrate/enrich skip already-hydrated entries and add only what's new (fetch re-syncs the full bookmark list each run). Failures are recorded inline (e.g. article_fetch_error) so subsequent runs don't pointlessly re-hit them.

Behaviour change in v0.6.0: the default retention mode is keep-lost. Before v0.6.0 the CLI was purely additive — it never removed an inventory entry. From v0.6.0, the first fetch after upgrading will drop entries you had un-saved (no longer in your bookmark list on the server). Run with --keep-all to preserve the old additive-everything behaviour.

bsky-saves serve

bsky-saves serve runs a small HTTP helper daemon on 127.0.0.1 that bsky-saves-gui — a static web app running bsky-saves in Pyodide — calls to offload operations the browser can't do directly: fetching image bytes and arbitrary article URLs (both blocked by CORS), and routing bookmark enumeration, enrichment, and thread hydration through the helper instead of running them in Pyodide.

bsky-saves serve [--gui] [--port 47826] [--allow-origin ORIGIN]... [--verbose]

The daemon binds only to 127.0.0.1, writes nothing to disk, reads no config files, validates the Host header to reject DNS-rebinding attempts (421), enforces an Origin allowlist (403 for anything outside the defaults), caps request bodies at 10 MB, and exposes seven endpoints:

Endpoint	Credentials	Purpose
GET /ping	—	Health check; advertises supported endpoints in a features array
GET /auth/check	—	Verify the paired session token; 200 empty body on success, 401 otherwise
POST /fetch-image	—	Download a cdn.bsky.app image; returns the bytes
POST /extract-article	—	Fetch + trafilatura-extract text from an article URL
POST /fetch	required	Paginated bookmark enumeration with opaque cursor
POST /enrich	—	Decode post_created_at offline from at-URI rkeys
POST /hydrate-threads	required	Concurrent same-author thread reply hydration

Endpoints that require credentials accept {handle, app_password, pds?} in the request body; the daemon does its own createSession per request and never persists anything. pds defaults to https://bsky.social when absent. /hydrate-threads validates credentials (to fail-fast on a bad app password) but reads threads from the public AppView unauthenticated.

The default Origin allowlist is http://127.0.0.1:<port>, http://localhost:<port>, and https://saves.lightseed.net. Pass --allow-origin <url> (repeatable) to add to this list — for example if you self-host the GUI at a custom URL. The flag is additive, not replacing.

Pairing

Since v0.6.2 the helper requires a session token on every API request (except GET /ping, which stays unauth so the GUI can probe whether the helper is running before pairing). The token lives at:

• Linux / *BSD: $XDG_CONFIG_HOME/bsky-saves/token (defaulting to ~/.config/bsky-saves/token)
• macOS: ~/Library/Application Support/bsky-saves/token
• Windows: %APPDATA%\bsky-saves\token

It is generated lazily on the first bsky-saves serve (or the first bsky-saves token) and persisted across daemon restarts and bsky-saves upgrades. File perms are 0600.

The bundled GUI (bsky-saves serve --gui) reads the token from a <meta name="bsky-saves-token"> tag in the served index.html — no user action is needed for the bundled flow.

For the hosted GUI at https://saves.lightseed.net, the SPA prompts for the token on first connect. Run:

bsky-saves token

to print the current token, then paste it into the SPA's pairing modal. To regenerate (invalidating any paired session — useful if you suspect the token leaked):

bsky-saves token --rotate

--gui mode

Pass --gui to also mount the bundled bsky-saves-gui static bundle at /. The GUI shares the same loopback port that serves the JSON API; API routes always take precedence over static files. Missing non-API paths fall back to the GUI's index.html so its SPA router takes over.

--gui is opt-in. Without it, the daemon behaves as a JSON-only CORS bridge for the hosted GUI at https://saves.lightseed.net (the v0.4.x behaviour). With it, you don't need a hosted GUI deployment at all — open http://127.0.0.1:47826/ directly. The wheel bundles a known-version GUI pinned at build time via SHA-256; bumping the pin requires a coordinated release with the bsky-saves-gui repo.

If --gui is passed but the bundled GUI is missing (e.g. a broken install or an sdist build that didn't run the vendor hook), the daemon exits with code 2 and a clear error.

The full HTTP API contracts live in the consumer repo:

• v1 endpoints (/ping, /fetch-image, /extract-article): bsky-saves-gui/docs/bsky-saves-serve-requirements.md.
• v2 endpoints (/fetch, /enrich, /hydrate-threads): bsky-saves-gui/docs/bsky-saves-serve-fetch-enrich-threads-requirements.md.

Inventory schema

{
  "fetched_at": "2026-04-30T14:00:00Z",
  "saves": [
    {
      "uri": "at://did:plc:.../app.bsky.feed.post/abc123",
      "saved_at": "2026-04-29T22:11:00Z",
      "post_created_at": "2026-04-29T17:43:51Z",  // decoded from rkey
      "post_text": "...",
      "embed": {
        "type": "external",
        "url": "https://example.org/article",
        "title": "...",
        "description": "..."
      },
      "author": { "handle": "...", "display_name": "...", "did": "..." },
      "images": [
        { "kind": "image", "url": "https://cdn.bsky.app/...", "alt": "..." }
      ],
      // Lifecycle flags (added by `fetch`; see retention modes above):
      "last_seen_at": "2026-04-30T14:00:00Z",          // last fetch that saw this URI
      "removed_detected_at": "2026-05-02T09:00:00Z",   // optional; you un-saved it (retained only under --keep-all)
      "subject_status": "not_found",                   // optional; "not_found" | "blocked" | "unknown"
      "subject_status_detected_at": "2026-05-02T09:00:00Z", // optional; when subject_status went non-live
      "quoted_post": { /* optional, when the save quote-posts another post */ },

      // Added by `hydrate articles`:
      "article_text": "...",
      "article_published_at": "2025-09-13",
      "article_fetched_at": "...",

      // Added by `hydrate threads`:
      "thread_replies": [
        { "uri": "...", "indexedAt": "...", "text": "...", "images": [...] }
      ],
      "thread_schema_version": 4,
      "thread_fetched_at": "...",

      // Added by `hydrate images`:
      "local_images": [
        { "url": "https://cdn.bsky.app/...", "path": "img-9f2c8e1b....jpg" }
      ]
    }
  ]
}

What about OAuth?

bsky-saves only supports the app-password authentication path. The OAuth + DPoP machinery for third-party PDSes lives in a separate package, atproto-oauth-py, and exists primarily for AppView-targeted resource calls that aren't reachable via PDS-direct auth. For BlueSky bookmarks the PDS-direct path (which bsky-saves uses) works regardless of where your account is hosted.

License

MIT. See LICENSE.

Provenance

Extracted from https://github.com/tenorune/tenorune.github.io's scripts/ directory, where it powered the Stories of 47 archive's BlueSky save ingestion. The Jekyll site itself stays in that repo; this is the reusable ingestion layer.