# wallet_getHeight

Gets the current blockchain height.

Agent View of the PolicyLayer registry record for `wallet_getHeight`. HTML page: https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-getheight

## Facts

- Tool: `wallet_getHeight`
- Server: Bitcoin SV MCP Server (`b-open-io/bsv-mcp`) — https://policylayer.com/tools/b-open-io-bsv-mcp.md
- Homepage: https://github.com/b-open-io/bsv-mcp
- 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": "wallet_getHeight",
    "arguments": {}
  }
}
```

## Why wallet_getHeight is rated Low

The tool retrieves the current block height from the Bitcoin SV blockchain, which is publicly available information. No data is created, modified, deleted, or any external actions are triggered. This is a straightforward informational query with no security risk beyond information disclosure, which is minimal for public blockchain data.

From the tool's own definition: "Tool name 'wallet_getHeight' and description 'Gets the current blockchain height' indicate a simple data retrieval operation with no side effects. This is a read-only query of blockchain state."

## Use case

AI agents call wallet_getHeight to retrieve information from Bitcoin SV 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 Bitcoin SV MCP Server:

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

## Other tools on Bitcoin SV MCP Server (89)

- `wallet_abortAction` — Destructive — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-abortaction.md
- `wallet_relinquishCertificate` — Destructive — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-relinquishcertificate.md
- `wallet_relinquishOutput` — Destructive — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-relinquishoutput.md
- `wallet_remove` — Destructive — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-remove.md
- `bap_friend` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/bap-friend.md
- `utils_installAgentMaster` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/utils-installagentmaster.md
- `wallet_createHmac` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-createhmac.md
- `wallet_createSignature` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-createsignature.md
- `wallet_decrypt` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-decrypt.md
- `wallet_encrypt` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-encrypt.md
- `wallet_proveCertificate` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-provecertificate.md
- `wallet_signAction` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-signaction.md
- `wallet_signBsm` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-signbsm.md
- `wallet_waitForAuthentication` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-waitforauthentication.md
- `x402_request` — Execute — https://policylayer.com/tools/b-open-io-bsv-mcp/x402-request.md
- `bsocial_createPost` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/bsocial-createpost.md
- `droplit_fund` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/droplit-fund.md
- `mnee_sendMnee` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/mnee-sendmnee.md
- `wallet_acquireCertificate` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-acquirecertificate.md
- `wallet_cancelListing` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-cancellisting.md
- `wallet_createAction` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-createaction.md
- `wallet_createOrdinals` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-createordinals.md
- `wallet_listOrdinal` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-listordinal.md
- `wallet_lockBsv` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-lockbsv.md
- `wallet_mintCollection` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-mintcollection.md
- `wallet_opnsDeregister` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-opnsderegister.md
- `wallet_purchaseListing` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-purchaselisting.md
- `wallet_sendAllBsv` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-sendallbsv.md
- `wallet_sendBsv` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-sendbsv.md
- `wallet_sweepBsv` — Financial — https://policylayer.com/tools/b-open-io-bsv-mcp/wallet-sweepbsv.md
- …and 59 more: https://policylayer.com/tools/b-open-io-bsv-mcp.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=b-open-io-bsv-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/b-open-io-bsv-mcp