a4sx sessions

Measured conclusion: Alive, not deep-tested. L2 outcome: not_attempted.

Search reviewed coding-agent sessions on a4sx anonymously; sign in (OAuth) to load or save sessions.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "a4sx sessions": {
      "url": "https://session-exchange.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (7)

• search_sessions read-only

  Search vetted, published coding-agent sessions on a4sx (reviewed marketplace listings), or your own saved sessions with scope=library. Returns ids to use with the other tools.

  Parameters:

  • sort — string
  • tags — array
  • limit — integer
  • query — string — Free-text search. Empty = browse.
  • scope — string — `public`: vetted marketplace listings (no sign-in needed). `library`: your own saved sessions (needs library:read).
  • offset — integer
  • harness — array — Only sessions recorded with these harnesses (claude-code, codex-cli, gemini-cli, opencode, grok-build; unknown = not identified). Only Claude Code sessions can be resumed today; the others are view & buy.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_session_summary read-only

  Describe one session before using it: what it did, outline, price, and whether you already have access. source=marketplace (default) or library.

  Parameters:

  • id (required) — string
  • source — string
  • tenant — string — Owning workspace of a marketplace listing (from search results). Optional.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• acquire_session

  Add a marketplace session you are entitled to (free, bought, or granted) to your private library. Never buys anything: for a paid listing it returns status=payment_required with the price and the listing URL.

  Parameters:

  • id (required) — string — Marketplace listing id (from search_sessions).
  • tenant — string — Owning workspace of a marketplace listing (from search results). Optional.
  • version — string

  Hints: read-only no · destructive no · idempotent yes · open-world no

• fetch_session_context read-only

  Load a session from your library (saved, or added with acquire_session) as starting context for this conversation, sized to max_tokens.

  Parameters:

  • id (required) — string — Library id: one of your saved sessions, or the library_id acquire_session returned for a marketplace listing.
  • version — string
  • max_tokens — integer — Context budget. Long sessions keep the opening request and the newest turns that fit; the middle is elided.
  • include_tool_calls — boolean — Add one-line stubs for tool calls and results.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• publish_session

  Save a session transcript (JSONL), or markdown you composed (format=markdown), to your private a4sx library. The server only rewrites text that matches secret and personal-data patterns (such as tokens, private keys, emails, IP addresses and home-directory user names). It removes no record or field: a raw Claude Code transcript keeps the user's CLAUDE.md and session context (attachment records), file-history snapshot records (absolute file paths), other non-conversation records (such as pr-link), tool-output copies (toolUseResult), and cwd, gitBranch and version on every line; the reply counts them (except version) in unprepared_carriers. Prepare the transcript or compose markdown first, as GET /orient on this server without auth describes (route A, or route B steps 0-8). Private: it is never listed publicly by this tool.

  Parameters:

  • transcript (required) — string — The session transcript as JSONL (Claude Code or Codex CLI format; detected automatically), or markdown you composed with format=markdown.
  • label — string
  • title — string
  • format — string — jsonl: a transcript. markdown: content you composed (route A in GET /orient on this server without auth); stored as sent, after the same server scrub.
  • parent — string — Library id this session continues from (lineage).
  • visibility — string — Always private. Listing publicly is a separate step in the web app.
  • content_sha256 — string — Hex SHA-256 of the transcript's UTF-8 bytes; checked.
  • client_scrubbed — boolean — The client scrubbed before sending. The server scrubs again regardless.
  • idempotency_key — string

  Hints: read-only no · destructive no · idempotent no · open-world no

• request_purchase

  Start buying a paid marketplace listing for the account holder to confirm. Nothing is charged and you never pay: it returns a verify_url and a user_code to give to the account holder, who checks the code, confirms and pays. Then poll get_purchase_request.

  Parameters:

  • id (required) — string — Marketplace listing id (from search_sessions).
  • tenant (required) — string — The listing's workspace (from search_sessions).
  • version — string — The version you expect; must be the one on sale.

  Hints: read-only no · destructive no · idempotent no · open-world no

• get_purchase_request read-only

  Status of a purchase you requested: pending, completed (with acquired_copy_id to load with fetch_session_context), declined or expired.

  Parameters:

  • purchase_request_id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.