---
title: "List available domains (builtins + caller's custom domains)"
method: GET
path: "/v1/graph/domains"
tags: ["v1", "Graph Domains"]
---

# List available domains (builtins + caller's custom domains)

`GET /v1/graph/domains`

## Response `200`

Successful Response

- GraphDomainList
  - `domains` GraphDomainSpec[], required
    - `domain_id` string, required
    - `name` string, required
    - `description` string, required
    - `signals` SignalField[], required
      - `name` string, required — Snake_case signal identifier.
      - `description` string, required — Human prompt used by extractor.
      - `weight` number — Relative weight in the fusion.
      - `frequency_hz` number, nullable — Hz band mapping (0.1 … 70.0). Auto-assigned if omitted.
      - `type` 'enum' | 'text' | 'numeric' | 'date' | 'boolean' | 'multi_value_text' — Extraction / phase type for this signal.
      - `allowed_values` string[], nullable — For type='enum': allowed vocabulary.
      - `required` boolean — Warn when missing at extract time.
    - `signal_multipliers` object, nullable — Domain-level default signal multipliers (see GraphDomainCreate).
    - `routing_config` GraphDomainRoutingConfig — Domain-scoped CAESAR-VIII routing overrides (stored on graph_domains).
      - `disabled_rules` string[], nullable — Global SciFact routing rule names to skip for this domain (e.g. 'DANGER_LOW_RSG_LOW_PHI').
      - `enabled_rule_packs` string[], nullable — Named domain rule packs to run after global rules (e.g. 'cosqa_caesar8_v2').
      - `threshold_overrides` object, nullable — Optional CaesarConfig field overrides keyed by threshold name (e.g. {'cmas_c4_trust_jaccard_threshold': 0.95}).
      - `enhanced_initial_source` string, nullable — CAESAR-VIII initial source for the CE-on path. Domain defaults may pin 'caesar4_5_v4a' on code_search for public enhanced; public max overrides to 'caesar7' unless this field is set.
      - `holographic_floor` boolean, nullable — When true, never return a ranking worse than max(v4a, baseline) unless CE gate (ce_gate_min_phi) passes.
      - `ce_gate_min_phi` number, nullable — Minimum phi to allow caesar7/baseline_rerank to bypass holographic floor.
      - `egr_lambda_ce` number, nullable — Stacked EGR entailment fusion weight (0–1). Lower for code domains.
      - `caesar4_source` string, nullable — Which ranking is exposed as rankings['caesar4'] to CAESAR-VIII rules (c4_c7_diverge, etc.). Accepts 'v4a' (default — alias to family-routed v4a / v3a fallback), 'v3a' (force v3a only), or 'legacy' (SKIP the alias; keep the original Jaccard / trust-score selection at rankings['caesar4'] and stash a copy at rankings['_caesar4_legacy']). Use 'legacy' to A/B C-VIII rules against the original SciFact calibration semantics. Label-free in all modes.
    - `catalog_config` DomainCatalogConfig — Catalog settings on a domain.
      - `enabled` boolean — Whether to auto-accumulate signals on transform.
      - `refresh_every_n` integer — Run LLM clustering after this many buffered entries.
    - `catalog` DomainCatalog — Curated summary of what's in a domain's frequency space.
      - `entity_clusters` CatalogEntityCluster[]
        - `label` string, required — LLM-chosen canonical label for this cluster.
        - `members` string[] — Raw signal values merged into this cluster.
        - `count` integer — Total occurrences across all transforms.
      - `relationship_patterns` CatalogRelationshipPattern[]
        - `label` string, required — Canonical label (e.g. 'Causal', 'Preventive').
        - `members` string[] — Raw relationship values in this cluster.
        - `count` integer — Total occurrences.
      - `domain_distribution` object — Signal band name -> total doc count.
      - `signal_value_counts` object — Per-band raw value counts, e.g. {'domain': {'Health': 500, 'Tech': 200}}.
      - `total_documents` integer — Total transforms processed.
      - `last_refreshed` string, nullable — ISO timestamp of last LLM clustering run.
      - `last_updated` string, nullable — ISO timestamp of last buffer append.
    - `catalog_buffer` CatalogBufferEntry[] — Buffered raw signals awaiting LLM clustering (internal).
      - `signals` object, required — Band name -> extracted value.
      - `timestamp` string, required — ISO timestamp of the transform call.
    - `builtin` boolean — True for built-in domains shipped with Papr (read-only).
    - `created_at` string, nullable
    - `owner_user_id` string, nullable
    - `owner_workspace_id` string, nullable — Workspace that owns this domain. Domains are scoped to workspace when set.
    - `owner_organization_id` string, nullable — Organization that owns this domain.
    - `owner_namespace_id` string, nullable — Namespace this domain belongs to, if any.

---

[API](https://skmtc.net/papr-ai/apis/papr-memory-api.md) · [All operations](https://skmtc.net/papr-ai/apis/papr-memory-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/papr-ai/papr-memory-api/revisions/b553be9aad37/schema)