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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 · Code & DevOps

io.github.cyanheads/internet-archive-mcp-server

Search the Wayback Machine and IA library (40M+ items), fetch snapshots, item metadata, and text.

Checks passed
14 / 22

0 failed · 8 not measured

Median response
891 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
5

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?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
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 891 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name internet-archive-mcp-server.

  • Pass
    Lists tools

    tools/list returned 5 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 891 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 891 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

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.

  • Pass
    Parameters documented

    29 of 29 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Pass
    Repo owner matches

    The GitHub repository owner matches the namespace login.

  • Pass
    Recently updated

    Updated 2026-10-28T07:34:43.945087Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using io.github.cyanheads/internet-archive-mcp-server

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 io-github-cyanheads-internet-archive-mcp-server https://internet-archive.caseyjhand.com/mcp

Capabilities

Tools 5

ia_find_snapshots

Find Wayback Machine snapshots of a URL. Mode "closest" returns the single nearest capture to a given timestamp via the Availability API, falling back to a CDX closest-capture query when the Availability API has no answer (one result). Mode "history" returns the full capture list via the CDX API — filterable by date range and HTTP status code, collapsed by default to one capture per day (collapse "timestamp:8"); collapse "timestamp:14" lists one row per distinct capture second. Use history mode to survey how a page changed over time; use closest mode when you need the snapshot nearest a specific date. History mode returns up to limit records (at most 10,000 per call) and supports resume-key pagination for URLs with very large capture histories.

Discovered
ia_get_item

Retrieve metadata and the file manifest for an Internet Archive item by identifier. Returns title, creator, description, subjects, collections, license, language, the total file count, and a page of files, each with its format, size, and direct download URL. Pages hold up to max_files files (default 50, at most 500 per call) starting at file_offset; set format to keep a single file type (e.g. "DjVuTXT", "Text PDF", "VBR MP3"). The primary tool to act on a search result from ia_search_items. Use ia_get_text to retrieve the readable text of a text item.

Discovered
ia_get_snapshot

Fetch the archived content of a URL at a specific Wayback Machine timestamp. Resolves to the nearest available capture when the exact timestamp has no snapshot. Returns the archived page as readable plain text (HTML stripped) and the replay URL of the capture Wayback served, for browser access. Use ia_find_snapshots first to discover valid timestamps for a URL.

Discovered
ia_get_text

Retrieve readable OCR DjVuTXT or plain text from an Internet Archive item, including public-domain books, documents, scanned periodicals, and transcripts. Set max_chars for page size, then pass next_continuation as continuation with the same identifier and omit char_offset. Direct char_offset access remains available. To confirm a text file exists, call ia_get_item with format "DjVuTXT".

Discovered
ia_search_items

Search the Internet Archive library (40M+ items) using the Advanced Search (Solr) API. Filter by media type (texts, audio, movies, software, image, etc.), collection, creator, date range, and language. Sort by downloads (the default), date, title, or random. Supports pagination via page/rows. Returns identifiers, titles, creators (the first 10, with creator_count when a record lists more), media types, dates, download counts, collections (without fav- favorites lists), total_found, and current page/rows for pagination context. Use ia_get_item with a returned identifier to get full metadata and file manifests.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected891 ms5