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prism

R0· no sign-in

Stateless MCP gateway and OTel span-streaming bridge for hosted MCP servers.

v1.0.0 · active · repository · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality91strong
Trust94of 100
Uptime, 30 days100%
Latency p50220 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "prism": {
      "type": "http",
      "url": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
claude mcp add --transport http prism https://prism-mcp.terradev.cloud/mcp
[mcp_servers.prism]
url = "https://prism-mcp.terradev.cloud/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "prism": {
      "type": "remote",
      "url": "https://prism-mcp.terradev.cloud/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "prism": {
      "type": "http",
      "url": "https://prism-mcp.terradev.cloud/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=prism&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcHJpc20tbWNwLnRlcnJhZGV2LmNsb3VkL21jcCJ9"
}
{
  "servers": {
    "prism": {
      "type": "http",
      "url": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
{
  "mcpServers": {
    "prism": {
      "httpUrl": "https://prism-mcp.terradev.cloud/mcp"
    }
  }
}
extensions:
  "prism":
    enabled: true
    name: "prism"
    type: streamable_http
    uri: "https://prism-mcp.terradev.cloud/mcp"
    timeout: 300

Quality 91 / 100strong

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations3 of 3 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 373 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changes3 tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

3 tools, about 373 tokens to load them all · tool set 74a6c501f537 · tools last changed 2026-09-29 · checked 2026-10-20 09:31 UTC

Tool changes

  • prism_metricsremoved

    Dumps Prism's in-process counters and gauges — spans shipped, upstream errors, rate-limit hits, queue depth. Two formats: 'prometheus' (default, scrape-ready text) or 'json' (a {"series{labels}": value} object). Use 'prefix' to narrow to a metric family, e.g. 'prism_spans'.

  • prism_configremoved

    Returns Prism's effective runtime configuration — upstream allowlist, rate limit, capture default, batching and queue tunables, public URL, and configured ingest endpoints. Secrets (admin token, destination credentials) are never exposed — only whether they are set.

  • prism_sessionsremoved

    Lists the MCP sessions Prism is currently tracing — session id prefix, upstream, client name, project, turn and error counts, and age in seconds. Use 'limit' to cap results (default 20, max 100) and 'upstream' to filter by upstream URL substring.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 94 / 100

provenance80
liveness100
freshness100
hygiene100

+repository +namespace-matches-repo +reachable +uptime-100% +updated-23d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://prism-mcp.terradev.cloud/mcp streamable-httpnoneyes100%220 ms2025-11-252026-10-20

Tools (3)

prism_helpread-onlyReturns connection instructions: how to set the upstream MCP server (X-Prism-Upstream header or ?upstream= query param), the query-param config keys for header-less clients, how destinations and the borrowed-token model work, and example client configs. Start here if you are an agent discovering Prism for the first time.
prism_inforead-onlyReturns Prism's service identity and runtime state: version, transport, public URL, capture default, and the number of MCP sessions currently being traced. Use this to confirm which Prism deployment you are talking to and whether it is healthy before configuring an upstream.
prism_pingread-onlyReturns {"pong": true, "time": <unix seconds>} plus an optional echo of the 'echo' argument. Use to verify connectivity through the gateway before pointing it at an upstream MCP server.

Schemas: list_tools.

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More from io.github.terradev-cloud

Official server.json
{
  "name": "io.github.terradev-cloud/prism",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://prism-mcp.terradev.cloud/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "repository": {
    "url": "https://github.com/terradev-cloud/prism",
    "source": "github"
  },
  "description": "Stateless MCP gateway and OTel span-streaming bridge for hosted MCP servers."
}