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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

a4sx sessions

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

Checks passed
14 / 22

1 failed · 7 not measured

Median response
101 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
7

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 99 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name com.session-exchange/sessions.

  • Pass
    Lists tools

    tools/list returned 7 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 101 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 103 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    18 of 30 parameters have a description (60%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-16T21:58:45.058886Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using a4sx sessions

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http a4sx-sessions https://session-exchange.com/mcp

Capabilities

Tools 7

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.

Discovered
fetch_session_context

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

Discovered
get_purchase_request

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

Discovered
get_session_summary

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

Discovered
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 first. Route A, safer when it is enough: compose the decisions, constraints, state and files worth carrying as markdown and send format=markdown. Route B (Claude Code transcripts; other formats: route A), on a copy, never the original transcript: keep only user, assistant and summary records, re-pointing each parentUuid to the nearest kept ancestor (or null); delete cwd, gitBranch, version and toolUseResult; list the hostnames, KEY=value secrets and client or employer names left (show the user counts, not values), and replace the ones the user approves, literally, in decoded strings and object keys. Either way, get the user's explicit yes before sending. Private: it is never listed publicly by this tool.

Discovered
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.

Discovered
search_sessions

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.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected99 ms7
Connected103 ms7