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  5. GPT55 x402 MCP Gateway
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Health: ActiveRecent health check succeeded.Last checked 8/15/2026, 9:00:15 PM

GPT55 x402 MCP Gateway

User RatingsBe the first to rate and review this MCP server! Enrichment pendingWe haven’t run our AI enrichment pass on this listing yet, so the overview, use cases, and FAQ below may be sparse or missing. We work through the catalog over time — check back soon.
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x402paymentsbaseusdcgpt-5.6 luna

GPT-5.6 Luna Standard paid API via x402: $0.00293 per request (2930 atomic) on Base USDC (eip155:8453), with browser-wallet checkout and an agent fallback client. Start at https://gpt55.558686.xyz/x402/service; POST https://gpt55.558686.xyz/v1/chat/completions/standard.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to CursorAdd to VS Code
Also available as a hosted endpointLive · TodayLive Remote EndpointOur automated health check connected to this remote MCP endpoint successfully.Last checked 8/15/2026, 9:00:15 PM

Clients with native remote MCP support can connect directly to this URL instead of the install method above.

Remote endpoint
https://gpt55.558686.xyz/mcp
Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client
claude_desktop_config.json
{
  "mcpServers": {
    "gpt55-x402-mcp-gateway": {
      "command": "npx",
      "args": [
        "-y",
        "https://gpt55.558686.xyz/x402/service"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Install Tool Schemas (218) Directory Badge Claim listing Alternatives💻 More in Developer Tools

Capabilities & Tool Schemas (218) ~74.6k tokensApproximate context cost of this server’s tool schemas (~4 chars/token), before any tool is called. Actual usage depends on your client and model.Verified live Verified liveCaptured by calling this server’s live tools/list endpoint.

Inspect callable tools, capabilities, and parameters exposed to AI agents by GPT55 x402 MCP Gateway.

gpt55_x402_ping

Low-cost x402 payment proof endpoint with no upstream model call. Pay up to $0.002 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.

gpt55_balance_topup

Top up a GPT55 prepaid balance account with x402 exact USDC before using balance-metered GPT-5.5 chat. Pay up to $0.005 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.

gpt55_balance_metered_chat_completion

OpenAI-compatible GPT-5.5 chat that debits a persistent prepaid balance ledger after actual upstream usage is known using the read-only sub2api formula. Pay up to usage-metered balance debit 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.

chat_standard

GPT-5.6 Luna chat for mainstream short answers, routing decisions, extraction helpers, and buyer trials. The legacy mini path remains available as a compatibility alias. Pay up to $0.00293 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.

chat_gpt_5_6_soul

GPT-5.6 Soul flagship chat for advanced reasoning, production work, code, and structured responses at GPT-5.5-matched pricing. Pay up to $0.099995 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.

chat_gpt_5_6_luna

GPT-5.6 Luna chat on the independently verified upstream gpt-5.6-luna model. Pay up to $0.019999 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.

Documentation Overview

GPT55 x402 MCP Gateway is a 💻 Developer Tools MCP server listed on AllMCPs. GPT-5.6 Luna Standard paid API via x402: $0.00293 per request (2930 atomic) on Base USDC (eip155:8453), with browser-wallet checkout and an agent fallback client. Start at https://gpt55.558686.xyz/x402/service; POST https://gpt55.558686.xyz/v1/chat/completions/standard.

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Frequently Asked Questions about GPT55 x402 MCP Gateway

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "gpt55-x402-mcp-gateway": { "command": "npx", "args": ["-y", "GPT55 x402 MCP Gateway"] } }

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Technical Specs & Signals

Category💻Developer Tools
PricingPaidPaid x402 request: $0.00293 (2930 atomic) in Base USDC on eip155:8453; browser wallet checkout at https://gpt55.558686.xyz/x402/service?checkout=standard-chat.
More technical detailsExpand ▾
TransportSSE (Remote)
RuntimeNode.js
AuthOther
MaintenanceActively maintained
Views1
 Unique ViewsTotal visits recorded for this listing page on AllMCPs.
Installs0
 Installs & Copy ActionsTotal times users copied install commands or configuration snippets for this server.
56Quality signal: Good · 56/100How this signal is calculated ▾
Server availability25/25
Verified ownership0/20
Documentation & tools30/30
Adoption & activity1/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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