ZeroWidth MCP

ZeroWidth provides an official MCP server that enables LLM agents to search documentation and interact with its platform tools. It allows agents to list and run Workbench flows, manage Caliper datasets and evals, create and link Compass pages, record Ledger entries, and view Napkin sketches, requiring authentication for platform actions.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-18Operated by ZeroWidth

MCP endpoint (Streamable HTTP)

https://api.zerowidth.ai/mcp

Vendor documentation

What you can do with it

Search and retrieve documentation pages
List and run Workbench flows
Create and manage Compass pages
Record decisions in Ledger

Tools advertised by the last live check:

search_docs
get_doc
list_docs
list_posts
get_post
workbench_flows_revisions_list
workbench_flows_update
workbench_flows_publish
workbench_flows_delete
workbench_flows_fork
workbench_flows_schedules_list
workbench_flows_schedules_update
workbench_flows_schedules_delete
workbench_flows_schedules_run_now
workbench_flows_shares_list
workbench_flows_shares_revoke
workbench_flows_scenarios_list
workbench_flows_scenarios_create
workbench_flows_scenarios_update
workbench_flows_scenarios_delete
workbench_flows_attach_knowledge_base
workbench_flows_run
workbench_flows_schedule
workbench_flows_list
workbench_executions_get
workbench_flows_get
workbench_flow_authoring_guide
workbench_node_catalog_get
workbench_flows_scaffold
workbench_flows_edit_text
workbench_flows_share_create
workbench_kb_get
workbench_kb_documents_list
workbench_kb_ingestion_status
workbench_kb_delete
workbench_kb_document_delete
workbench_kb_list
workbench_kb_search
workbench_kb_create
workbench_kb_add_documents
workbench_shim_list
workbench_shim_get
workbench_shim_create
workbench_shim_add_answer
workbench_shim_add_examples
caliper_datasets_get
caliper_datasets_update
caliper_datasets_delete
caliper_datasets_update_item
caliper_datasets_remove_item
caliper_datasets_generate
caliper_datasets_generate_items
caliper_rubrics_list
caliper_rubrics_get
caliper_rubrics_update
caliper_rubrics_delete
caliper_evals_get
caliper_evals_runs_item_execution
caliper_evals_update
caliper_evals_delete
caliper_evals_runs_cancel
caliper_sources_list
caliper_sources_over_time
caliper_traces_list
caliper_traces_get
caliper_source_feeds_list
caliper_sources_to_dataset
caliper_source_feeds_stop
caliper_starters_list
caliper_starters_install
caliper_datasets_list
caliper_flow_performance
caliper_evals_runs_list
caliper_evals_runs_get
caliper_evals_list
caliper_evals_run
caliper_datasets_create
caliper_datasets_add_items
caliper_rubrics_create
caliper_evals_create
compass_pages_list
compass_pages_search
compass_pages_get
compass_pages_create
compass_pages_update
compass_links_create
compass_process_diagram_ensure
compass_page_links_list
compass_interviews_create
compass_interview_targets
compass_interview_invite
compass_gaps_list
compass_gaps_create
compass_gaps_resolve
compass_opportunities_list
compass_opportunities_propose
compass_opportunities_create
compass_opportunities_register_expectation
compass_opportunities_mark_implemented
compass_map_view
compass_pages_delete
compass_pages_restore
compass_links_update
compass_links_delete
compass_opportunities_update
compass_opportunities_delete
compass_opportunities_accept
compass_interviews_list
compass_interviews_get
compass_interviews_revoke
compass_inbox_list
compass_gaps_update
compass_statuses_list
compass_opportunities_set_status
compass_workflow_steps
compass_step_claims_list
compass_step_claims_propose
compass_workflow_rollup
compass_workflow_learning
compass_step_measures_propose
compass_scenario_changes
compass_change_effects_set
compass_transformations_get
compass_priority_steps_find
compass_transformations_read
compass_transformations_respond
compass_transformations_make_change
compass_step_suggestions_list
compass_step_suggestions_build
compass_changes_upsert
prism_fields_list
prism_fields_get
research_findings_list
prism_fields_create
prism_nodes_expand
prism_nodes_update
prism_nodes_research
prism_studies_list
prism_studies_get
prism_studies_draft
prism_studies_draft_standalone
prism_studies_draft_from_interviews
prism_studies_update
prism_studies_results
prism_research_digest
prism_studies_report
prism_series_list
prism_series_launch_wave
prism_interviews_list
prism_studies_segments
prism_studies_cut
prism_studies_analyze
prism_interviews_create
prism_insights_promote
prism_studies_segments_compute
prism_fields_update
prism_fields_delete
prism_studies_list_workspace
prism_studies_delete
prism_series_create
prism_series_update
prism_panels_draft
prism_panels_list
prism_panels_get
prism_panel_runs_estimate
prism_panel_runs_get
prism_panels_create
prism_panels_run
prism_panel_runs_cancel
prism_research_reports_list
prism_research_reports_get
prism_research_run
ledger_entries_list
ledger_entries_get
ledger_entries_create
ledger_entries_settle
ledger_metrics_list
ledger_metrics_create
ledger_metrics_record_reading
ledger_metrics_get
ledger_entries_update
ledger_entries_retract
ledger_entries_add_evidence
ledger_metrics_update
ledger_metrics_archive
ledger_plan_list
ledger_plan_add
ledger_plan_update
ledger_plan_delete
ledger_metric_presets_list
ledger_metric_presets_adopt
ledger_metric_starters_list
ledger_metric_starters_adopt
ledger_entries_draft
ledger_feed_sources_list
ledger_feeds_list
ledger_feeds_preview
ledger_feeds_create
ledger_feeds_update
ledger_feeds_run
ledger_feeds_backfill
ledger_feeds_delete
comments_list
comments_create
comments_resolve
napkin_boards_list
napkin_boards_get
napkin_boards_view
napkin_boards_update
napkin_deck_outline
napkin_slide_view
napkin_boards_create
napkin_deck_write
napkin_slide_add
napkin_slide_fill
napkin_draw
napkin_deck_set_theme
napkin_slide_update
napkin_brand_list
napkin_brand_get
napkin_brand_check
napkin_brand_apply
napkin_brand_draft
napkin_brand_fonts
napkin_brand_examples
napkin_brand_add_files
napkin_brand_view
napkin_deck_export
napkin_layouts_list
napkin_deck_compose
napkin_docs_list
napkin_docs_get
napkin_docs_create
napkin_docs_update
napkin_sheets_list
napkin_sheets_schema
napkin_sheets_query
napkin_sheets_view_chart
napkin_sheets_set_cells
napkin_sheets_add_chart
napkin_sheets_create
napkin_sheets_update
napkin_tables_get
napkin_tables_query
napkin_tables_create
napkin_tables_add_records
napkin_tables_update_records
napkin_tables_delete_records
napkin_tables_add_columns
napkin_tables_add_view
napkin_diagrams_list
napkin_diagrams_get
napkin_diagrams_create
napkin_diagrams_update
napkin_interfaces_list
napkin_interfaces_get
napkin_interfaces_view
napkin_interfaces_create
napkin_interfaces_write
napkin_interfaces_publish
napkin_interfaces_grant
napkin_interfaces_grant_data
workbench_tasks_get
workbench_tasks_update
workbench_tasks_delete
workbench_tasks_list
workbench_tasks_create
workbench_tasks_compile
workbench_tasks_freeze
workbench_tasks_start
workbench_tasks_run_view
workbench_tasks_act
routines_list
routines_create
routines_update
rooms_list
rooms_read
rooms_post
rooms_add_flow
rooms_start_agent_work
workspace_credit_get
search_workspace
entity_tags_get
entity_tags_browse
workspace_folders_browse
entity_tags_set
workspace_files_save_from_chat
workspace_files_read
workspace_setup

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http zerowidth-mcp https://api.zerowidth.ai/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add zerowidth-mcp --url https://api.zerowidth.ai/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable zerowidth-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "zerowidth-mcp": {
      "url": "https://api.zerowidth.ai/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "zerowidth-mcp": {
      "type": "streamableHttp",
      "url": "https://api.zerowidth.ai/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start zerowidth-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "zerowidth-mcp": {
      "type": "http",
      "url": "https://api.zerowidth.ai/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http zerowidth-mcp https://api.zerowidth.ai/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "zerowidth-mcp": {
      "url": "https://api.zerowidth.ai/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "zerowidth-mcp": {
      "serverUrl": "https://api.zerowidth.ai/mcp"
    }
  }
}

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