ordinals_searchInscriptions

THE RISK

Low Risk

Why ordinals_searchInscriptions needs a policy

This tool retrieves or queries inscription data from the blockchain without side effects. Even though it operates on financial assets (inscriptions/NFTs on Bitcoin SV), it only reads data and does not move money, execute code, or modify state. The 'currently awaiting API implementation' note suggests it may be incomplete but does not change its read-only nature.

From the tool's definition Tool name contains 'search' and description states 'Search for inscriptions by various criteria' with no mention of modification, deletion, or execution of code/commands. It is a query operation against blockchain data.

Documented attack patterns abuse exactly the kind of access ordinals_searchInscriptions gives an agent:

POLICY

How to control ordinals_searchInscriptions

PolicyLayer is an MCP gateway — it sits between your AI agents and Bitcoin SV MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ordinals_searchInscriptions:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ordinals_searchInscriptions": {}
  }
}

ordinals_searchInscriptions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Bitcoin SV MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Bitcoin SV MCP Server tools

Financial bsocial_createPost Create a social post on the BSV blockchain using B:// and MAP protocols. Posts are stored Financial wallet_cancelListing Cancel an ordinal marketplace listing Financial wallet_transferOrdToken Transfer an ordinal inscription or send BSV21 fungible tokens. Use type= Financial wallet_acquireCertificate Acquires an identity certificate from a certifier. Financial wallet_listOrdinal List an ordinal for sale on the marketplace Financial wallet_mintCollection Mint a collection of ordinals from a folder of images with proper metadata. This tool crea Financial wallet_opnsDeregister Deregister an OpNS name Financial wallet_purchaseListing Purchases a listing from the Bitcoin SV ordinals marketplace. Supports both NFT purchases

All 80 Bitcoin SV MCP Server tools →

Read tools on other servers

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about ordinals_searchInscriptions

What does the ordinals_searchInscriptions tool do? +

Search for inscriptions by various criteria. Currently awaiting 1sat-stack search API implementation. It is categorised as a Read tool in the Bitcoin SV MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ordinals_searchInscriptions? +

Register the Bitcoin SV MCP Server MCP server in PolicyLayer and add a rule for ordinals_searchInscriptions: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Bitcoin SV MCP Server. Nothing to install.

What risk level is ordinals_searchInscriptions? +

ordinals_searchInscriptions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit ordinals_searchInscriptions? +

Yes. Add a rate_limit block to the ordinals_searchInscriptions rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block ordinals_searchInscriptions completely? +

Set action: deny in the PolicyLayer policy for ordinals_searchInscriptions. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides ordinals_searchInscriptions? +

ordinals_searchInscriptions is provided by the Bitcoin SV MCP Server MCP server (b-open-io/bsv-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bitcoin SV MCP Server tool call.

Start from Bitcoin SV MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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