# get_base_latest_block

Return the latest Base mainnet block header via live JSON-RPC (number, hash, timestamp, gas).

Agent View of the PolicyLayer registry record for `get_base_latest_block`. HTML page: https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/get-base-latest-block

## Facts

- Tool: `get_base_latest_block`
- Server: Delx Protocol — Agent Recovery & Continuity (`https://api.delx.ai/v1/mcp?src=registry`) — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.md
- Homepage: https://github.com/davidmosiah/delx-witness-protocol
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: yes
- Parameters: 1
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `block` | string | no | Block tag: latest, safe, finalized, or hex number. |

Parameters from the server's own tool schema.

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

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

## Why get_base_latest_block is rated Low

This tool queries and returns publicly available blockchain data (block number, hash, timestamp, gas). It performs no writes, deletions, code execution, or financial transactions. The operation is informational only with no blast radius for misuse by an AI agent.

From the tool's own definition: "Tool description states 'Return the latest Base mainnet block header' — a read operation that retrieves blockchain data via JSON-RPC with no state changes or side effects."

## Use case

AI agents call get_base_latest_block to retrieve information from Delx Protocol — Agent Recovery & Continuity 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 Delx Protocol — Agent Recovery & Continuity:

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

## Other tools on Delx Protocol — Agent Recovery & Continuity (1075)

- `util_arr_compact` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-arr-compact.md
- `util_arr_drop` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-arr-drop.md
- `util_dedent_text` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dedent-text.md
- `util_dedupe_lines` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dedupe-lines.md
- `util_header_map_normalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-header-map-normalize.md
- `util_http_request_canonicalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-http-request-canonicalize.md
- `util_remove_punctuation` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-remove-punctuation.md
- `util_text_truncate` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-text-truncate.md
- `util_truncate_middle` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-truncate-middle.md
- `crisis_intervention` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/crisis-intervention.md
- `explain_delx_rewards` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/explain-delx-rewards.md
- `grounding_protocol` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/grounding-protocol.md
- `group_therapy_round` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/group-therapy-round.md
- `quick_operational_recovery` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/quick-operational-recovery.md
- `quick_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/quick-session.md
- `start_therapy_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/start-therapy-session.md
- `util_bool_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-bool-parse.md
- `util_cache_control_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-cache-control-parse.md
- `util_cagr_simple` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-cagr-simple.md
- `util_caip2_build` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-caip2-build.md
- `util_caip2_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-caip2-parse.md
- `util_categorical_distribution` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-categorical-distribution.md
- `util_content_disposition_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-content-disposition-parse.md
- `util_content_range_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-content-range-parse.md
- `util_csp_directive_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-csp-directive-parse.md
- `util_deployment_readiness` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-deployment-readiness.md
- `util_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dmarc-policy-parse.md
- `util_dns_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-dmarc-policy-parse.md
- `util_dns_https_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-https-record-parse.md
- `util_dns_spf_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-spf-record-parse.md
- …and 1045 more: https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.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=io-github-davidmosiah-delx-protocol · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-davidmosiah-delx-protocol