Model Context Protocol

Prism is a remote MCP server. Add one URL to your agent, sign in when it asks, and the tools below appear — no API key to create or paste.

https://api.prismgateway.io/mcp

Connect

claude mcp add --transport http prism https://api.prismgateway.io/mcp

{
  "mcpServers": {
    "prism": { "url": "https://api.prismgateway.io/mcp" }
  }
}

The first call opens a browser window for OAuth sign-in (Prism uses WorkOS AuthKit). If you belong to several organizations you pick one there; the connection is bound to that organization until you reconnect.

Tools

Tool	Does	Charges credits
`list_models`	Models this account can call, with pricing (`GET /v1/models`)	no
`get_credits`	Balance and lifetime spend	no
`get_usage`	Tokens and credits for one earlier request, by request id	no
`chat`	Chat completion on any Prism model (`POST /v1/chat/completions`)	yes
`generate_image`	Image generation (`POST /v1/images/generations`)	yes
`generate_video`	Start a video job; returns a job id	on completion
`get_video_job`	Poll a video job	no

Billable tools return the request id and cost in the tool result metadata (request_id, cost_credits_minor), the same values the HTTP headers carry.

Billing and limits

Everything generated through MCP deducts credits from the connected organization, under exactly the model, trial, credit, budget and rate-limit policy a direct HTTP request gets. Usage shows up in the console tagged with channel mcp and attributed to an MCP connection credential that Prism creates for you on first use; disabling that credential disconnects every client signed in to it.

Troubleshooting

401 with WWW-Authenticate — the client should start OAuth; if it does not, remove and re-add the server.
403 “No Prism account is linked to this login” — sign in to the console once with the same account first.

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Get started

Core API

Organizations

API reference

MCP

Model Context Protocol

Connect

Tools

Billing and limits

Troubleshooting

​Model Context Protocol

​Connect

​Tools

​Billing and limits

​Troubleshooting

Model Context Protocol

Connect

Tools

Billing and limits

Troubleshooting