qnexus-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| QNEXUS_MCP_PROJECTS | No | Comma-separated project allowlist, enforced on every mutating tool | |
| QNEXUS_MCP_TOOLSETS | No | Capability domains to expose (read,execute,manage,destructive) | read |
| QNEXUS_MCP_ALLOW_SPEND | No | Permit credit-spending (HQC) execution | false |
| QNEXUS_MCP_MAX_CREDITS | No | Hard per-call HQC ceiling; 0 blocks all spend | 0 |
| QNEXUS_MCP_MAX_OUTCOMES | No | Top-N cap on distinct measurement outcomes returned per result (truncation is always reported) | 100 |
| QNEXUS_MCP_ALLOW_HARDWARE | No | Permit real-QPU targets | false |
| QNEXUS_MCP_ALLOW_DESTRUCTIVE | No | Permit delete/cancel/archive | false |
| QNEXUS_MCP_MAX_SUBMISSIONS_PER_MINUTE | No | Sliding-window submission cap; each circuit in a batch counts as one | 6 |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| extensions | {
"io.modelcontextprotocol/ui": {}
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| nexus_auth_statusA | Report whether a valid Nexus session exists. |
| nexus_whoamiA | Return the authenticated Nexus user. |
| nexus_list_devicesA | List available backends and their status. |
| nexus_device_statusA | Report whether a device is online. Emulators/syntax checkers are always available. |
| nexus_list_projectsA | List Nexus projects visible to the user (one page of up to Optional |
| nexus_get_quotaA | Return remaining compilation/simulation quotas. |
| nexus_list_jobsA | List jobs visible to the user (one page of up to Optional filters: exact |
| nexus_job_statusA | Return the status of a job by id. |
| nexus_job_costA | Return the HQC cost of an existing job by id. |
| nexus_get_resultsA | Return measurement counts for a completed job by id. Counts are capped at the top --max-outcomes outcomes by frequency; total_outcomes /
omitted_outcomes / omitted_shots report any truncation. Multi-circuit (batch) jobs return
one entry per circuit under |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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