// SCAN REPORT

Scryfall MCP Server

22 tools. 3 can modify or destroy data without limits.

3 write tools that can modify data. Rate limits recommended.

Last updated: 1 Jul 2026

3 can modify or destroy data

19 read-only

22 tools total

Community server · catalogue entry verified 01/07/2026

How to control Scryfall MCP Server ↓

TOOL MAP

What Scryfall MCP Server exposes to your agents

Read (19) Write / Execute (3) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Scryfall MCP Server tools

Execute · Medium csb_parse_deck_text The tool parses input text and triggers external processing via the Commander Spellbook service to resolve card data. Write · Medium csb_build_card_index This tool rebuilds an index and writes it to cache storage. Write · Low refresh_tagger_tags This tool writes data to local storage (cache) as a side effect of refreshing tags.

3 of Scryfall MCP Server's 22 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Scryfall MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and Scryfall MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "csb_build_card_index": {
    "limits": [
      {
        "counter": "csb_build_card_index_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "autocomplete": {
    "limits": [
      {
        "counter": "autocomplete_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Scryfall MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON SCRYFALL →

Instant setup, no code required.

FULL CATALOGUE

All 22 Scryfall MCP Server tools

EXECUTE 1 tools

Execute csb_parse_deck_text Parse a plain-text decklist into cards using Commander Spellbook.

WRITE 2 tools

Write csb_build_card_index Rebuild oracleId→CSB id index and write cache. Write refresh_tagger_tags Force refresh Tagger tags from docs and write local cache.

READ 19 tools

Read autocomplete Autocomplete card names based on a partial query. Read csb_card Fetch Commander Spellbook card by numeric ID. Read csb_find_combos_by_card_ids Find combos that the provided cards enable (exact and almost-included). Read csb_find_combos_by_names Resolve names via Scryfall → oracle_id, map to CSB IDs via cached index, then call find-my-combos. Read csb_lookup_by_oracle_ids Map Scryfall oracle_id UUIDs to Commander Spellbook numeric IDs using the local index (builds if stale). Read csb_read_card_index Read oracleId→CSB id index from local cache. Read csb_variants_search Search Commander Spellbook variants (combos) by filters like uses/produces. Read get_card Get a single card by Scryfall UUID or by name (exact/fuzzy). Read get_rulings Get official rulings for a card by Scryfall UUID. Read list_sets List all sets available on Scryfall. Read list_tagger_tags Fetches Scryfall Tagger tag names from the public docs page. Read random_card Fetch a random card, optionally filtered by a Read read_tagger_cache Read tags from local cache file without network. Read search_by_art_tag Find cards using Tagger artwork tags, e.g. squirrel, dragon, wizard. Read search_by_cmc Find cards within a mana value range, optionally filtered by color and type. Read search_by_colors Find cards by colors or color identity. Read search_by_format Find cards by legality in a given format. Read search_by_function_tag Find cards using Tagger function (oracle) tags, e.g. removal, ramp. Read search_cards Search cards using Scryfall

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about Scryfall MCP Server

How do I prevent bulk modifications through Scryfall MCP Server? +

The Scryfall MCP Server server has 2 write tools including csb_build_card_index, refresh_tagger_tags. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Scryfall MCP Server.

How many tools does the Scryfall MCP Server MCP server expose? +

22 tools across 3 categories: Execute, Read, Write. 19 are read-only. 3 can modify, create, or delete data.

How do I enforce a policy on Scryfall MCP Server? +

Register the Scryfall MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Scryfall MCP Server tool call.

Deterministic rules across all 22 Scryfall MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON SCRYFALL →

Instant setup, no code required.

22 Scryfall MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.