# gpt55_x402_market_benchmark

Fetch public x402 directories and CDP x402 Bazaar search results, normalize advertised USDC prices, compare AI-like listings, surface active competitors, and return buyer/seller opportunity notes. This deterministic endpoint does not call an upstream model. Pay up to $0.006 per request with x402 USDC on Base or choose the fixed-price Solana USDC option when advertised. Exact fixed-price payment and Base upto token-metered payment are both accepted when clients support them; upto settlements use actual response usage, a 0.0001 minimum, and the selected tier price as the cap. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json.

Agent View of the PolicyLayer registry record for `gpt55_x402_market_benchmark`. HTML page: https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-market-benchmark

## Facts

- Tool: `gpt55_x402_market_benchmark`
- Server: GPT 5 5 x402 Low Cost Agent Tools (`https://gpt55.558686.xyz/mcp`) — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway.md
- Homepage: https://github.com/go165/gpt55-x402-gateway
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: yes
- Parameters: 6 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | integer | no |  |
| `pages` | integer | no |  |
| `query` | string | yes |  |
| `sources` | array | no |  |
| `page_size` | integer | no |  |
| `timeout_ms` | integer | no |  |

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": "gpt55_x402_market_benchmark",
    "arguments": {
      "query": "<query>"
    }
  }
}
```

## Why gpt55_x402_market_benchmark is rated Low

This tool's primary function is fetching, normalizing, and returning market data—a Read operation. However, severity is elevated to 'medium' rather than 'low' because the tool involves financial pricing data and cryptocurrency transactions (USDC payments on Base/Solana).

From the tool's own definition: "Tool performs data retrieval: 'Fetch public x402 directories and CDP x402 Bazaar search results, normalize advertised USDC prices, compare AI-like listings, surface active competitors, and return buyer/seller opportunity notes.' The description explicitly…"

## Use case

AI agents call gpt55_x402_market_benchmark to retrieve information from GPT 5 5 x402 Low Cost Agent Tools 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 GPT 5 5 x402 Low Cost Agent Tools:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "gpt55_x402_market_benchmark": {}
  }
}
```

## Other tools on GPT 5 5 x402 Low Cost Agent Tools (217)

- `gpt55_html_strip` — Destructive — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-html-strip.md
- `gpt55_x402_buyer_client_adapter_pack` — Destructive — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-buyer-client-adapter-pack.md
- `gpt55_regex_match` — Execute — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-regex-match.md
- `gpt55_url_parse` — Execute — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-url-parse.md
- `gpt55_url_parse_get` — Execute — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-url-parse-get.md
- `gpt55_wallet_signing_safety_pack` — Execute — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-wallet-signing-safety-pack.md
- `gpt55_answer_professional` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-answer-professional.md
- `gpt55_balance_topup` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-balance-topup.md
- `gpt55_gpt55_plus_half_price_subscription` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-gpt55-plus-half-price-subscription.md
- `gpt55_sub2api_balance_ledger_simulator` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-sub2api-balance-ledger-simulator.md
- `gpt55_sub2api_official_metered_invoice` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-sub2api-official-metered-invoice.md
- `gpt55_x402_agent_approval_workflow_compiler` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-approval-workflow-compiler.md
- `gpt55_x402_agent_core_integration_kit` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-core-integration-kit.md
- `gpt55_x402_agent_core_integration_kit_get` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-core-integration-kit-get.md
- `gpt55_x402_agent_credit_line_underwriting_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-credit-line-underwriting-pack.md
- `gpt55_x402_agent_data_leak_containment_plan` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-data-leak-containment-plan.md
- `gpt55_x402_agent_market_data_procurement_firewall` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-market-data-procurement-firewall.md
- `gpt55_x402_agent_payment_approval_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-payment-approval-pack.md
- `gpt55_x402_agent_payment_authorization_ato_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-payment-authorization-ato-pack.md
- `gpt55_x402_agent_payment_due_diligence_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-payment-due-diligence-pack.md
- `gpt55_x402_agent_payment_due_diligence_pack_get` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-payment-due-diligence-pack-get.md
- `gpt55_x402_agent_payment_policy_compiler` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-payment-policy-compiler.md
- `gpt55_x402_agent_procurement_rfp_response_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-procurement-rfp-response-pack.md
- `gpt55_x402_agent_runbook_compliance_attestation_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-runbook-compliance-attestation-pack.md
- `gpt55_x402_agent_spend_recurrence_guard` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-spend-recurrence-guard.md
- `gpt55_x402_agent_spend_simulator` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-spend-simulator.md
- `gpt55_x402_agent_task_receipt_outbox` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-task-receipt-outbox.md
- `gpt55_x402_agent_treasury_rebalancing_policy` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-treasury-rebalancing-policy.md
- `gpt55_x402_agent_wallet_incident_response_pack` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-wallet-incident-response-pack.md
- `gpt55_x402_agent_wallet_key_rotation_drill` — Financial — https://policylayer.com/tools/xyz-558686-gpt55-token-gateway/gpt55-x402-agent-wallet-key-rotation-drill.md
- …and 187 more: https://policylayer.com/tools/xyz-558686-gpt55-token-gateway.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=xyz-558686-gpt55-token-gateway · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/xyz-558686-gpt55-token-gateway