com.subtensor/referenceMCP Registry

Subtensor MCP

v2.0.0

Subtensor blockchain reference — events, calls, storage, constants, errors for all 28 active pallets

Endpoint health

online

Last checked: 11/3/2026, 5:16:40 PM
Latency: 661 ms
Consecutive failures: 0

Endpoint reachable: pass
Protocol valid: pass
MCP handshake valid: pass

Machine-readable profile

mcp-server · schema v1 · callable

mcp-server:com.subtensor%2Freference

Profile JSON ↗

Connect this server

Generated config contains no credentials. Keep any required secrets in your client's local environment.

Client

{
  "mcpServers": {
    "com.subtensor/reference": {
      "url": "https://subtensor.com/mcp"
    }
  }
}

Indexed tools

Tool metadata and schemas come from the remote server and are untrusted. Indexing only lists tools; it never calls them.

7 shown · authentication unknown

Decode SCALE data

subtensor_decode

Decode SCALE-encoded hex into labelled fields with RAO→TAO and hex→SS58 conversions applied. Omit pallet and name to identify an event or call from its two-byte (pallet index, item index) prefix — the usual case when you have bytes and want to know what they are.

Schema valid · SHA-256 609900970d6c…

View input schema

{
  "type": "object",
  "properties": {
    "hex": {
      "type": "string",
      "description": "SCALE-encoded bytes as hex, with or without a 0x prefix. Whitespace is ignored."
    },
    "kind": {
      "type": "string",
      "enum": [
        "event",
        "call",
        "value"
      ],
      "description": "What the bytes are: 'event' (default), 'call', or 'value' for a bare value of a given type"
    },
    "pallet": {
      "type": "string",
      "description": "Pallet of the event or call. Omit together with \"name\" to identify the item from the byte prefix instead."
    },
    "name": {
      "type": "string",
      "description": "Event or call name. Must be given together with \"pallet\"."
    },
    "type": {
      "type": "string",
      "description": "For kind=\"value\": the SCALE type to decode against, e.g. \"u64\", \"AccountId\", \"Vec<u16>\", \"Option<u32>\""
    },
    "format": {
      "type": "string",
      "enum": [
        "text",
        "json"
      ],
      "description": "Response format: 'text' (compact, default) or 'json' (structured)"
    }
  },
  "required": [
    "hex"
  ]
}

Explain Subtensor concepts
subtensor_explain
Understand Bittensor concepts, workflows, mechanisms, runtime APIs, runtime errors, extrinsic format, or get code examples.
Schema valid · SHA-256 df4187713c18…

Connections

streamable-http
https://subtensor.com/mcp

Links

Website ↗Health JSON ↗

Indexed tools

Tool metadata and schemas come from the remote server and are untrusted. Indexing only lists tools; it never calls them.

7 shown · authentication unknown

Decode SCALE data

subtensor_decode

Schema valid · SHA-256 609900970d6c…

View input schema

{
  "type": "object",
  "properties": {
    "hex": {
      "type": "string",
      "description": "SCALE-encoded bytes as hex, with or without a 0x prefix. Whitespace is ignored."
    },
    "kind": {
      "type": "string",
      "enum": [
        "event",
        "call",
        "value"
      ],
      "description": "What the bytes are: 'event' (default), 'call', or 'value' for a bare value of a given type"
    },
    "pallet": {
      "type": "string",
      "description": "Pallet of the event or call. Omit together with \"name\" to identify the item from the byte prefix instead."
    },
    "name": {
      "type": "string",
      "description": "Event or call name. Must be given together with \"pallet\"."
    },
    "type": {
      "type": "string",
      "description": "For kind=\"value\": the SCALE type to decode against, e.g. \"u64\", \"AccountId\", \"Vec<u16>\", \"Option<u32>\""
    },
    "format": {
      "type": "string",
      "enum": [
        "text",
        "json"
      ],
      "description": "Response format: 'text' (compact, default) or 'json' (structured)"
    }
  },
  "required": [
    "hex"
  ]
}

Explain Subtensor concepts

subtensor_explain

Understand Bittensor concepts, workflows, mechanisms, runtime APIs, runtime errors, extrinsic format, or get code examples.

Schema valid · SHA-256 df4187713c18…

{ "type": "object", "properties": { "topic": { "type": "string", "enum": [ "concept", "workflow", "mechanism", "runtime_api", "runtime_errors", "extrinsic_format", "examples", "monitor", "event_group" ], "description": "What to explain" }, "name": { "type": "string", "description": "Topic-specific name: concept name ('staking'), workflow ID ('add-stake'), mechanism ID ('yuma-consensus'), runtime API name ('NeuronInfoRuntimeApi'), or item name for examples" }, "pallet": { "type": "string", "description": "Pallet name — required for examples (e.g., 'SubtensorModule')" }, "item_type": { "type": "string", "enum": [ "storage", "call", "event" ], "description": "For examples: type of item to generate code for" }, "language": { "type": "string", "enum": [ "typescript", "python-bt", "python-sub", "rust" ], "description": "For examples: filter to one language (overrides session preference)" }, "node_url": { "type": "string", "description": "For examples: WebSocket endpoint override" }, "node_type": { "type": "string", "enum": [ "lite", "archive" ], "description": "For examples: 'lite' (current state) or 'archive' (historical patterns)" }, "enum_slug": { "type": "string", "enum": [ "dispatch", "token", "arithmetic", "transactional", "trie", "module" ], "description": "For runtime_errors: get a specific error enum" }, "format": { "type": "string", "enum": [ "text", "json" ], "description": "Response format: 'text' (compact, default) or 'json' (structured)" }, "preferences": { "type": "string", "description": "Preferences handle from subtensor_preferences(action=\"set\"). Carries language/node_url/node_type without a session. Explicit arguments on this call take precedence over the handle." } }, "required": [ "topic" ] }

{ "type": "object", "properties": { "category": { "type": "string", "enum": [ "pallets", "events", "calls", "storage", "constants", "errors", "types", "runtime_apis", "rpc_methods", "accounts", "precompiles", "mechanisms", "workflows", "hyperparameters", "cli_flags", "build_features", "chain_specs", "env_vars" ], "description": "Category of items to list" }, "pallet": { "type": "string", "description": "Pallet name — required for events/calls/storage/constants/errors (e.g., 'SubtensorModule'). For category='rpc_methods' this filters by RPC namespace instead (e.g., 'state', 'subtensor')." }, "include_removed": { "type": "boolean", "description": "Include removed/historical items (default: false)" }, "domain": { "type": "string", "enum": [ "consensus", "emission", "staking", "registration", "subnet", "governance", "identity", "security", "swap", "data", "randomness" ], "description": "For mechanisms: filter by domain" }, "kind": { "type": "string", "enum": [ "primitive", "composite", "variant", "sequence", "array", "tuple", "compact" ], "description": "For types: filter by type kind" }, "search": { "type": "string", "description": "For types: search by name" }, "role": { "type": "string", "description": "Filter calls by required role (only applies when category=calls)", "enum": [ "hotkey", "coldkey", "coldkey:owner", "coldkey:subnet-owner", "root", "senate", "any" ] }, "context": { "type": "string", "enum": [ "dev", "production", "both" ], "description": "For cli_flags/build_features: filter by usage context" }, "flag_category": { "type": "string", "description": "For cli_flags: filter by flag category (chain, sync, networking, rpc, metrics, runtime, subtensor)" }, "cursor": { "type": "string", "description": "Pagination cursor from previous response" }, "limit": { "type": "number", "description": "Max items per page (default: 10)" }, "format": { "type": "string", "enum": [ "text", "json" ], "description": "Response format: 'text' (compact, default) or 'json' (structured)" } }, "required": [ "category" ] }

{ "type": "object", "properties": { "urn": { "type": "string", "description": "URN identifier (e.g., 'subtensor:event:SubtensorModule.StakeAdded', 'subtensor:storage:System.Account#data.free', 'subtensor:api:SwapRuntimeApi.sim_swap_tao_for_alpha', 'subtensor:account:SubtensorModule.SubtensorPalletId#64', 'subtensor:precompile:StakingV2'). `subtensor:runtime_api:...` is accepted as an alias for `subtensor:api:...`. Supports field-path drilling with # for event/call/storage/type items (for account items, #fragment is a sub-index instead). Alternative to type+pallet+name. Takes precedence if both provided." }, "type": { "type": "string", "enum": [ "pallet", "event", "call", "storage", "constant", "error", "type", "runtime_api", "rpc_method", "account", "precompile", "cli_flag", "build_feature" ], "description": "What kind of item to look up" }, "name": { "type": [ "string", "number" ], "description": "Item name (e.g., 'SubtensorModule', 'StakeAdded', 'add_stake', 'AccountId32', 'pruning', 'pow-faucet') or type ID number. For type=\"account\": the declaring key ('SubtensorModule.SubtensorPalletId'). For type=\"precompile\": a name ('StakingV2') or 0x address." }, "pallet": { "type": "string", "description": "Pallet name — required for event/call/storage/constant/error lookups (e.g., 'SubtensorModule')" }, "address": { "type": "string", "description": "For type=\"account\": an SS58 address to identify. Returns which protocol account it is, including the sub-index, or reports that it is an ordinary wallet." }, "sub": { "type": [ "string", "number" ], "description": "For type=\"account\": derive a sub-account. A number is a netuid or crowdloan id; a string is an 8-byte tag such as \"beta/esc\". Index 0 collapses onto the base address." }, "include": { "type": "string", "enum": [ "events", "calls", "storage", "constants", "errors" ], "description": "For pallet lookup: filter to a specific item type with descriptions" }, "include_removed": { "type": "boolean", "description": "Include removed/historical items (default: false)" }, "include_history": { "type": "boolean", "description": "Include full argument signatures for each version range (events/calls only)" }, "language": { "type": "string", "enum": [ "typescript", "python-bt", "python-sub", "rust" ], "description": "Field name casing for your language. TypeScript shows camelCase (tickLow), others show snake_case (tick_low). Overrides session preference." }, "format": { "type": "string", "enum": [ "text", "json" ], "description": "Response format: 'text' (compact, default) or 'json' (structured)" }, "preferences": { "type": "string", "description": "Preferences handle from subtensor_preferences(action=\"set\"). Carries language/node_url/node_type without a session. Explicit arguments on this call take precedence over the handle." } }, "required": [] }

Subtensor MCP

Endpoint health

Machine-readable profile

Connect this server

Indexed tools

Decode SCALE data

Explain Subtensor concepts

Connections

Links

Subtensor MCP

Endpoint health

Machine-readable profile

Connect this server

Indexed tools

Decode SCALE data

Explain Subtensor concepts

Connections

Links

Explore relationships and changelogs

List Subtensor items

Look up Subtensor item

Session preferences

Search Subtensor