# get_block_by_height

Get block information by block height

Agent View of the PolicyLayer registry record for `get_block_by_height`. HTML page: https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/get-block-by-height

## Facts

- Tool: `get_block_by_height`
- Server: Stacks AI MCP Server (`stack-ai-mcp/stacks-mcp-server`) — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server.md
- Homepage: https://github.com/Stack-AI-MCP/stacks-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_block_by_height",
    "arguments": {}
  }
}
```

## Why get_block_by_height is rated Low

This is a read-only query operation that retrieves blockchain block information. No data is created, modified, deleted, or financial operations are initiated. The high confidence reflects the clear read semantics in both the name and description. The low severity is appropriate because retrieving historical block data poses minimal risk even if misused by an AI agent.

From the tool's own definition: "Tool name 'get_block_by_height' and description 'Get block information by block height' indicate a retrieval operation with no side effects. It queries and returns block data without modifying, deleting, or executing operations."

## Use case

AI agents call get_block_by_height to retrieve information from Stacks AI MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Stacks AI MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_block_by_height": {}
  }
}
```

## Other tools on Stacks AI MCP Server (199)

- `arkadiko_burn_usda` — Destructive — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-burn-usda.md
- `bitflow_cancel_group_order` — Destructive — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-cancel-group-order.md
- `bitflow_cancel_keeper_order` — Destructive — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-cancel-keeper-order.md
- `charisma_cancel_order` — Destructive — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-cancel-order.md
- `charisma_revoke_api_key` — Destructive — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-revoke-api-key.md
- `alex_execute_swap_3hop` — Execute — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/alex-execute-swap-3hop.md
- `arkadiko_create_proposal` — Execute — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-create-proposal.md
- `broadcast_transaction` — Execute — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/broadcast-transaction.md
- `charisma_execute_intent` — Execute — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-execute-intent.md
- `charisma_execute_order` — Execute — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-execute-order.md
- `alex_execute_swap` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/alex-execute-swap.md
- `alex_execute_swap_2hop` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/alex-execute-swap-2hop.md
- `alex_execute_swap_4hop` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/alex-execute-swap-4hop.md
- `arkadiko_add_liquidity` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-add-liquidity.md
- `arkadiko_claim_staking_rewards` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-claim-staking-rewards.md
- `arkadiko_close_vault` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-close-vault.md
- `arkadiko_complete_cdp_workflow` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-complete-cdp-workflow.md
- `arkadiko_complete_governance_workflow` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-complete-governance-workflow.md
- `arkadiko_create_vault` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-create-vault.md
- `arkadiko_stake_diko` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-stake-diko.md
- `arkadiko_swap_tokens` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/arkadiko-swap-tokens.md
- `bitflow_create_group_order` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-create-group-order.md
- `bitflow_create_keeper_order` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-create-keeper-order.md
- `bitflow_execute_btc_to_sbtc_keeper_order` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-execute-btc-to-sbtc-keeper-order.md
- `bitflow_execute_token_swap_with_keeper` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-execute-token-swap-with-keeper.md
- `bitflow_setup_dca_orders` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/bitflow-setup-dca-orders.md
- `charisma_complete_swap_workflow` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-complete-swap-workflow.md
- `charisma_create_order` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-create-order.md
- `charisma_execute_multihop_swap` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/charisma-execute-multihop-swap.md
- `granite_add_collateral` — Financial — https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server/granite-add-collateral.md
- …and 169 more: https://policylayer.com/tools/stack-ai-mcp-stacks-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=stack-ai-mcp-stacks-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/stack-ai-mcp-stacks-mcp-server