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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "tesseraai": {
      "command": "npx",
      "args": [
        "-y",
        "@tessera-llm/[email protected]"
      ],
      "env": {
        "TESSERA_API_KEY": "${TESSERA_API_KEY}",
        "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
      }
    }
  }
}

claude mcp add tesseraai -e "TESSERA_API_KEY=${TESSERA_API_KEY}" -e "TESSERA_UPSTREAM_API_BASE_URL=https://ledger.tesseraai.io" -- npx -y @tessera-llm/[email protected]

[mcp_servers.tesseraai]
command = "npx"
args = ["-y", "@tessera-llm/[email protected]"]
env = { "TESSERA_API_KEY" = "${TESSERA_API_KEY}", "TESSERA_UPSTREAM_API_BASE_URL" = "https://ledger.tesseraai.io" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tesseraai": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@tessera-llm/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "TESSERA_API_KEY": "{env:TESSERA_API_KEY}",
        "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
      }
    }
  }
}

{
  "mcpServers": {
    "tesseraai": {
      "command": "npx",
      "args": [
        "-y",
        "@tessera-llm/[email protected]"
      ],
      "env": {
        "TESSERA_API_KEY": "${TESSERA_API_KEY}",
        "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=tesseraai&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkB0ZXNzZXJhLWxsbS9tY3Atc2VydmVyQDAuMS4yIl0sImVudiI6eyJURVNTRVJBX0FQSV9LRVkiOiIke1RFU1NFUkFfQVBJX0tFWX0iLCJURVNTRVJBX1VQU1RSRUFNX0FQSV9CQVNFX1VSTCI6Imh0dHBzOi8vbGVkZ2VyLnRlc3NlcmFhaS5pbyJ9fQ%3D%3D"
}

{
  "servers": {
    "tesseraai": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@tessera-llm/[email protected]"
      ],
      "env": {
        "TESSERA_API_KEY": "${TESSERA_API_KEY}",
        "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
      }
    }
  }
}

{
  "mcpServers": {
    "tesseraai": {
      "command": "npx",
      "args": [
        "-y",
        "@tessera-llm/[email protected]"
      ],
      "env": {
        "TESSERA_API_KEY": "${TESSERA_API_KEY}",
        "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
      }
    }
  }
}

extensions:
  "tesseraai":
    enabled: true
    name: "tesseraai"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@tessera-llm/[email protected]"
    envs:
      "TESSERA_API_KEY": "${TESSERA_API_KEY}"
      "TESSERA_UPSTREAM_API_BASE_URL": "https://ledger.tesseraai.io"
    timeout: 300

Placeholders to fill from your own secret store: ${TESSERA_API_KEY}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

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 hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies67 · weight 15

pass
deps.known_vulnsno known advisory in 98 resolved packages
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable@tessera-llm/[email protected] resolved: 98 packages

Tool list unknown · checked 2026-10-19 15:15 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

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 84 / 100

provenance85

livenessn/a

freshness65

hygiene100

+repository +dns-namespace +website ~liveness-unmeasured ~updated-145d-ago

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

Dependencies

@tessera-llm/[email protected] npm97 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`@tessera-llm/mcp-server`	npm	0.1.2	npx	`TESSERA_API_KEY`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.tesseraai/mcp-server",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "tools": [
        {
          "name": "tessera_list_workloads",
          "side_effect": "read"
        },
        {
          "name": "tessera_get_savings_report",
          "side_effect": "read"
        },
        {
          "name": "tessera_get_recommendation_queue",
          "side_effect": "read"
        },
        {
          "name": "tessera_get_ledger_entries",
          "side_effect": "read"
        },
        {
          "name": "tessera_get_quality_snapshot",
          "side_effect": "read"
        },
        {
          "name": "tessera_approve_recommendation",
          "side_effect": "write"
        }
      ],
      "status": "active",
      "license": "Apache-2.0",
      "keywords": [
        "tessera",
        "mcp",
        "llm",
        "cost-optimization",
        "ai-cost",
        "llm-proxy",
        "openai",
        "anthropic",
        "claude",
        "savings",
        "audit"
      ],
      "security": {
        "scanned_by": [
          "tessera-static-scan v0.1"
        ],
        "auth_methods": [
          "api_key_env_var"
        ],
        "auth_required": true,
        "scanned_by_planned": [
          "snyk-agent-scan"
        ],
        "auth_methods_planned": [
          "oauth_2.1"
        ],
        "untrusted_content_labeling": "active"
      },
      "categories": [
        "observability",
        "cost-optimization",
        "ai-infrastructure",
        "llm-tooling"
      ],
      "client_compatibility": {
        "zed": "supported_via_mcp_remote_bridge",
        "cline": "supported",
        "goose": "supported_via_http",
        "cursor": "supported",
        "continue": "supported",
        "claude_code": "supported",
        "claude_desktop": "supported"
      },
      "transports_supported": [
        "stdio",
        "streamable-http"
      ]
    }
  },
  "title": "Tessera MCP Server",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.1.2",
  "packages": [
    {
      "version": "0.1.2",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@tessera-llm/mcp-server",
      "runtimeHint": "npx",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "TESSERA_API_KEY",
          "isSecret": true,
          "isRequired": true,
          "description": "API key in tk_* format. Get one free at https://tesseraai.io/dev."
        },
        {
          "name": "TESSERA_UPSTREAM_API_BASE_URL",
          "default": "https://ledger.tesseraai.io",
          "description": "Override only for staging or local-dev testing."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/tessera-llm/mcp-server",
    "source": "github",
    "subfolder": "node"
  },
  "websiteUrl": "https://tesseraai.io/dev",
  "description": "MCP server for Tessera's LLM cost-optimization layer: anchored spend, drift, recommendations."
}