Prism — Service Interface (MCP tools, REST endpoints)

Service interface

Prism — Cost Lens Engine: Traversal, Observation, Threat, Temporal.

Port: 8004 API version: /api/v1 Domain: Cost Lens — multi-factor cost computation, traversal, satellite observation, threat analysis, temporal optimization

Prism follows the dual REST + MCP service contract (platform.service-contract). Token validation and UDS persistence come from axonis-core (platform.axonis-core); evidence and result documents are written to Prism's own ES index via the Unified Dataspace surface (component.fedai-rest.dataspace).

Domain objects

Prism uses its own model hierarchy (not axonis-core userspace objects):

• CostLensSpec, CostLensResult, EvidenceBlock, Signal (from lens/models/)
• Route, Isochrone, RiskSurface, FloodExtent, ActionWindow (from compute modules)

Prism persists evidence blocks and results to its own ES index (prism) via UDS from axonis-core (component.fedai-rest.dataspace).

The lens/cost domain model these objects realize is specified by the cross-service Lens product spec (product.lens); the engine internals that produce them are specified by Prism's component specs — the lens parser (component.prism.universal-lens-parser), cost primitives (component.prism.cost-primitives), scoring (component.prism.scoring-engine), evidence model (component.prism.evidence-model), and the traversal (component.prism.traversal-engine), observation (component.prism.observation-engine), threat (component.prism.threat-engine), and temporal (component.prism.temporal-engine) engines.

MCP tools (13)

Cost Lens (3): execute_lens, compare_coas, parse_lens Traversal (3): route, isochrone, execute_mobility_surface Observation (2): collection_windows, coverage_surface Threat (2): risk_surface, flood_extent Temporal (2): action_windows, optimal_departure Packs (1): list_packs

REST endpoints

Method	Path	Maps to MCP tool
POST	/api/v1/lens/execute	execute_lens
POST	/api/v1/lens/compare	compare_coas
POST	/api/v1/lens/parse	parse_lens
POST	/api/v1/route	route
POST	/api/v1/isochrone	isochrone
POST	/api/v1/mobility/surface	execute_mobility_surface
POST	/api/v1/observation/windows	collection_windows
POST	/api/v1/observation/coverage	coverage_surface
POST	/api/v1/threat/risk	risk_surface
POST	/api/v1/threat/flood	flood_extent
POST	/api/v1/temporal/windows	action_windows
POST	/api/v1/temporal/departure	optimal_departure
GET	/api/v1/packs	list_packs

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Depends on: platform.axonis-core, platform.service-contract

Realizes: product.lens

Required by: component.prism.cost-lens-governance