NexusBridge

Access 200+ AI models and 10 service categories through a single NexusBridge API key.

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What it can do

  • Nexusbridge Catalog: Retrieve the full NexusBridge service catalog. Returns every available service with its slug, name, category, description, and per-call price in USD. Also returns your current cre
  • Nexusbridge Execute: Execute a NexusBridge service by its slug. Credits are deducted from your balance automatically based on the service's per-call price. Returns the upstream provider's response wra
  • Nexusbridge Balance: Check your current NexusBridge credit balance in USD and the number of active services available. Use this tool to verify you have enough credits before executing expensive operat

What data it sees

Do you need an account

No: the server works without sign-in

Access 200+ AI models and 10 service categories through a single NexusBridge API key. Run LLM chat completions, code generation, image generation, text embeddings, web search, document parsing, sentiment analysis, translation, summarization, and sandboxed code execution — all billed per call with transparent pricing. Credits never expire. No subscriptions required. Get your API key at https://syntss.com

How to connect

How to connect NexusBridge to Claude

The server address to paste into Claude settings:

https://nexusbridge-mcp-server--guhank.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect NexusBridge to ChatGPT

The server address to paste into ChatGPT settings:

https://nexusbridge-mcp-server--guhank.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect NexusBridge to Cursor

The server address to paste into Cursor settings:

https://nexusbridge-mcp-server--guhank.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

nexusbridge_catalogRetrieve the full NexusBridge service catalog. Returns every available service with its slug, name, category, description, and per-call price in USD. Also returns your current credit balance. Call this tool first before executing any service to discover what is available and confirm you have sufficient credits.
nexusbridge_executeExecute a NexusBridge service by its slug. Credits are deducted from your balance automatically based on the service's per-call price. Returns the upstream provider's response wrapped in a standard envelope with fields: success (boolean), service (slug used), charged (USD amount deducted), remainingBalance (credits left), and result (the upstream response object). For LLM services, pass a messages array in params. For search, pass a query string. For sentiment/summarization, pass a text string. Call nexusbridge_catalog first if you are unsure which slug to use or what params a service accepts.
nexusbridge_balanceCheck your current NexusBridge credit balance in USD and the number of active services available. Use this tool to verify you have enough credits before executing expensive operations, or to monitor spending after a batch of calls. Returns creditBalance (number in USD) and serviceCount (integer).