Taproot: AT Protocol is a remote MCP server that gives an AI agent 27 tools, among them count_records, count_repos_by_collection, describe_pds. It answers at https://mcp.atproto.at/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 5 of 5 times since 13 September 2026; the last check, on 19 October 2026, succeeded.
Read public AT Protocol profiles, records, threads, backlinks and lexicons. No API key required.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
count_records | Count the total records in an account's collection (e.g. how many likes a user has given). Scans server-side so you don't page manually. AT Protocol has no cheap exact count, so for very large collections this returns exact:false with a low Inputs: repo, collection, cursor |
count_repos_by_collection | Count how many accounts across the network publish a given collection/lexicon,e.g. 'how many accounts have an at.glean.subscription?'. Walks a relay's com.atproto.sync.listReposByCollection with NO per-account handle resolution, so it's che Inputs: collection, cursor, relay |
describe_pds | Describe a Personal Data Server: its DID, whether registration requires an invite, the handle domains you can register there, and ToS/contact links. Works for any PDS, not just Bluesky. Input is the PDS origin (e.g. https://pds.example.com) Inputs: pds |
get_account_history | An account's history from its PLC audit log: handle changes, PDS migrations, signing-key rotations, and creation time. did:plc accounts only (did:web has no PLC log). Input is a handle or DID. Inputs: actor |
get_app_link | Turn an at:// URI (or handle/DID) into shareable web links,a Bluesky/Blacksky app URL to open in a browser, plus the canonical PDS getRecord URL. Use when the user wants a clickable/pasteable link. Inputs: uri |
get_backlinks | Index of who/what references a target,the inbound likes, reposts, quotes, replies, and follows,as COUNTS per category, via the Constellation backlink index. Target is a record's at:// URI or an account DID. This returns aggregate counts onl Inputs: target |
get_blob_info | Get metadata for a single blob: its canonical PDS getBlob URL plus a best-effort content-type and byte size (via a HEAD request). Returns the URL, never the bytes. Use to turn a blob ref (CID) found in a record into a downloadable link and Inputs: repo, cid |
get_did_document | Fetch the raw DID document for any DID or handle: all aliases (alsoKnownAs), every service entry (PDS, labeler, custom AppView), and verification methods. Broader than get_profile, and works for did:web accounts. Input is a handle or DID. Inputs: actor |
get_latest_commit | The current head commit of an account's repository (com.atproto.sync.getLatestCommit): its commit CID and revision. The cheapest way to fingerprint a repo or detect whether it changed since you last looked, without downloading data. Complem Inputs: repo |
get_pds_directory_info | A cached health card for a PDS from pds.directory: version, DID, approximate user count, reachability, last-checked time, available domains, and which relays index it. Input is the PDS hostname (e.g. pds.example.com). Best-effort/cached dat Inputs: hostname |
get_profile | Get an account's repository overview (handle, DID, PDS, and the list of collections it contains). Input is a handle or DID. Inputs: actor, include |
get_record | Fetch a single record by its full at:// URI (must include collection and rkey). Returns the record's value, CID, and resolved identity. Inputs: uri, include |
get_relay_directory_info | A cached overview of a relay from firehose.directory: counts of PDSes it indexes (total/active/offline/banned) and total accounts. Input is the relay hostname (e.g. bsky.network). Best-effort/cached data. Inputs: hostname |
get_repo_status | Liveness/moderation status of an account's repository: whether it is active, its current revision, and any takedown/suspended/deactivated/deleted state. Answers 'has @alice been taken down?' which get_profile can't. Input is a handle or DID Inputs: repo |
get_thread | Reconstruct the conversation around a post: its ancestor chain up to the thread root (following reply.parent, root-first) PLUS a bounded descendant reply TREE,replies, replies-to-replies, and so on, each tagged with its depth and parent,wal Inputs: uri |
list_backlink_records | List the actual records (author DID + verified handle + at:// URI, newest first) that reference a target for ONE category,i.e. WHO liked, reposted, quoted, replied to, mentioned, or follows it. Workflow: call get_backlinks first to get a ca Inputs: target, source, cursor, limit |
list_blobs | List the blobs (uploaded media/attachments,images, video, etc.) hosted in an account's repository, via com.atproto.sync.listBlobs. Returns each blob's CID and its canonical PDS getBlob URL (PDS-native, works for any PDS,not a CDN). Answers Inputs: repo, cursor, limit |
list_labelers | List the labeler (moderation) services known to the labeler relay,each labeler's DID, resolved handle, and service endpoint. The discovery step BEFORE query_labels, which needs a labeler DID/handle up front: use this to find moderation.bsky Inputs: cursor, limit |
list_records | List records in a collection for an account, with pagination. Provide the repo (handle or DID) and the collection NSID (e.g. app.bsky.feed.post). Inputs: repo, collection, cursor, limit |
list_repos | List the accounts (repositories) hosted on a PDS, via com.atproto.sync.listRepos: each repo's DID and active/takedown status, paginated. Answers 'who is hosted on this PDS?' / 'how many accounts does this PDS have?'. By default returns DIDs Inputs: pds, cursor, limit, enrich |
list_repos_by_collection | Network-wide: which accounts publish a given collection/lexicon,e.g. 'who has an app.bsky.feed.generator (a custom feed)?' or who uses a custom lexicon. Via a relay's com.atproto.sync.listReposByCollection (anonymous). By default returns DI Inputs: collection, cursor, limit, relay, enrich |
query_labels | What moderation labels a labeler has applied to a subject (com.atproto.label.queryLabels),e.g. 'has @alice or this post been labeled spam/nsfw/hidden by labeler X?'. Anonymous and service-agnostic: the labeler's own service endpoint is foun Inputs: subject, labeler, cursor, limit |
resolve | Resolve any AT Protocol identifier to JSON. Accepts an at:// URI (at://<did-or-handle>/<collection>/<rkey>), a bare handle (alice.bsky.social), or a DID (did:plc:...). Returns a profile, a collection page, or a single record depending on ho Inputs: uri, include, cursor, limit |
resolve_lexicon | Explain what a record type means by resolving its lexicon schema. Input is a collection NSID (e.g. app.bsky.feed.post). Returns the schema's description and definition. Inputs: nsid |
search_accounts | Search for AT Protocol accounts by handle or display name (paginated, via the Bluesky AppView app.bsky.actor.searchActors, so accounts unknown to that index may be missing). Returns candidate accounts with DID + handle, to turn a name into Inputs: query, cursor, limit |
search_lexicons | Browse or search the registry of published AT Protocol lexicon schemas. The response's `total` field is the exact registry size and `matched` is the exact match count. Substring matches the NSID or description (query 'profile' → anything co Inputs: query, type, limit, offset |
verify_handle | Bidirectionally verify that a handle is really owned by its DID, via DNS TXT and HTTPS well-known. Returns whether each method passed. Use this to check for impersonation/spoofing,search results and resolve give candidates, this gives crypt Inputs: handle |
Every block below points at https://mcp.atproto.at/mcp. Pick your client and copy.
claude mcp add --transport http taproot-at-protocol https://mcp.atproto.at/mcp
{
"mcpServers": {
"taproot-at-protocol": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.atproto.at/mcp"]
}
}
}{
"mcpServers": {
"taproot-at-protocol": {
"url": "https://mcp.atproto.at/mcp"
}
}
}{
"servers": {
"taproot-at-protocol": {
"type": "http",
"url": "https://mcp.atproto.at/mcp"
}
}
}{
"context_servers": {
"taproot-at-protocol": {
"url": "https://mcp.atproto.at/mcp"
}
}
}{
"mcpServers": {
"taproot-at-protocol": {
"serverUrl": "https://mcp.atproto.at/mcp"
}
}
}{
"mcpServers": {
"taproot-at-protocol": {
"url": "https://mcp.atproto.at/mcp"
}
}
}name: Taproot: AT Protocol
version: 0.0.1
schema: v1
mcpServers:
- name: Taproot: AT Protocol
type: streamable-http
url: https://mcp.atproto.at/mcp{
"mcpServers": {
"taproot-at-protocol": {
"httpUrl": "https://mcp.atproto.at/mcp"
}
}
}{
"mcpServers": {
"taproot-at-protocol": {
"type": "http",
"url": "https://mcp.atproto.at/mcp"
}
}
}{
"mcpServers": {
"taproot-at-protocol": {
"url": "https://mcp.atproto.at/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.atproto.at%2Fmcp&type=streamable_http&id=taproot-at-protocol&name=Taproot%3A%20AT%20Protocol
It answered our last check on 19 October 2026 in 715 ms. Over 5 checks since 13 September 2026 it answered 5. Status here comes from Neuronto's own probes, not from the publisher.
27, as returned by the server's own tools/list on 24 September 2026: count_records, count_repos_by_collection, describe_pds, get_account_history, get_app_link, get_backlinks, get_blob_info, get_did_document, and 19 more.
It answered our last check on 19 October 2026 in 715 ms. Over 5 checks since 13 September 2026 it answered 5.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.atproto.at/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.atproto-mcp. Endpoint host: mcp.atproto.at. ARD identifier: urn:air:com.atproto-mcp:mcp:taproot.
First indexed 13 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.