# marketplace-probe

Send an HTTP request to an endpoint and inspect the response.

Agent View of the PolicyLayer registry record for `marketplace-probe`. HTML page: https://policylayer.com/tools/dev-forgesworn-bray/marketplace-probe

## Facts

- Tool: `marketplace-probe`
- Server: Nostr Bray (`nostr-bray`) — https://policylayer.com/tools/dev-forgesworn-bray.md
- Install: `npx -y nostr-bray`
- Homepage: https://github.com/forgesworn/bray
- Risk category: Execute (High risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

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

## Why marketplace-probe is rated High

Making arbitrary HTTP requests to external endpoints is an Execute-category action: it triggers network operations with side effects that vary by argument (GET vs POST, target URL, payload). While described as 'probe/inspect', the tool sends real requests that could trigger state changes on remote systems. Severity is medium because the blast radius depends on what endpoints are targeted and with what methods.

From the tool's own definition: "'Send an HTTP request to an endpoint and inspect the response' — actively triggers external HTTP operations whose effects depend on the target endpoint and method"

## Use case

AI agents invoke marketplace-probe to trigger actions in Nostr Bray. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Nostr Bray:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "marketplace-probe": {
      "limits": [
        {
          "counter": "marketplace-probe_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Nostr Bray (239)

- `blossom-delete` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/blossom-delete.md
- `group-remove-user` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/group-remove-user.md
- `label-remove` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/label-remove.md
- `marketplace-credentials-clear` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/marketplace-credentials-clear.md
- `marketplace-retire` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/marketplace-retire.md
- `social-delete` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/social-delete.md
- `tombstone` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/tombstone.md
- `trust-revoke` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/trust-revoke.md
- `vault-revoke` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/vault-revoke.md
- `zap-wallet-clear` — Destructive — https://policylayer.com/tools/dev-forgesworn-bray/zap-wallet-clear.md
- `cast-spell` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/cast-spell.md
- `execute-action` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/execute-action.md
- `identity-restore-shamir` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/identity-restore-shamir.md
- `identity-switch` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/identity-switch.md
- `nip44-encrypt` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/nip44-encrypt.md
- `onboard-verified` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/onboard-verified.md
- `relay-auth` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/relay-auth.md
- `trust-attest-chain` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/trust-attest-chain.md
- `trust-ring-lsag-sign` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/trust-ring-lsag-sign.md
- `trust-ring-prove` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/trust-ring-prove.md
- `trust-spoken-verify` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/trust-spoken-verify.md
- `vault-encrypt` — Execute — https://policylayer.com/tools/dev-forgesworn-bray/vault-encrypt.md
- `marketplace-pay` — Financial — https://policylayer.com/tools/dev-forgesworn-bray/marketplace-pay.md
- `zap-make-invoice` — Financial — https://policylayer.com/tools/dev-forgesworn-bray/zap-make-invoice.md
- `zap-send` — Financial — https://policylayer.com/tools/dev-forgesworn-bray/zap-send.md
- `article-list` — Read — https://policylayer.com/tools/dev-forgesworn-bray/article-list.md
- `article-read` — Read — https://policylayer.com/tools/dev-forgesworn-bray/article-read.md
- `badge-list` — Read — https://policylayer.com/tools/dev-forgesworn-bray/badge-list.md
- `blossom-check` — Read — https://policylayer.com/tools/dev-forgesworn-bray/blossom-check.md
- `blossom-discover` — Read — https://policylayer.com/tools/dev-forgesworn-bray/blossom-discover.md
- …and 209 more: https://policylayer.com/tools/dev-forgesworn-bray.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=dev-forgesworn-bray · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dev-forgesworn-bray