# Business Frameworks Market Rent Decision Engine > Business Frameworks Market Rent Decision Engine is a paid API for AI agents from business-frameworks.matryoshka-paradigms.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-17). Applies the market/decide/rent framework to compute rent durability (years before new supply crosses demand) and rent over a horizon, ranking multiple nodes when several are provided. ## Facts - Endpoint: POST https://business-frameworks.matryoshka-paradigms.workers.dev/apply/market/decide/rent?utm_source=zero.xyz - Price: $0.05/call - Payment: x402 - Status: unknown - Last checked: 2026-10-17 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/business-frameworks-market-rent-decision-engine-5f2ef3be - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-1klEQzVaBIGX4JPI1glx Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability business-frameworks-market-rent-decision-engine-5f2ef3be -d '' ``` Example prompt: Using the market/decide/rent framework, evaluate a market node with a pricing power score of 7.5, base year 2025, crossing year 2027, and a 3-year horizon — give me the durability, rent forecast, verdict, and recommended action. ## When to prefer this Choose this endpoint when you need a deterministic, rule-based rent durability and rent-over-horizon calculation grounded in the market/decide/rent framework — not a generative or model-based estimate. Ideal when you have a pricing power score and crossing year already sourced from upstream framework nodes (market/balance, market/decide/pricing-power) and need a structured verdict plus action recommendation. Prefer over general financial APIs when you specifically need framework-consistent rent analysis with durability scoring and multi-node ranking. ## Known failure modes - Missing required base_year returns validation error - pricing_power outside 0–10 range rejected by schema - crossing_year inconsistent with base_year (e.g. crossing before base) may produce unexpected durability values - nodes array missing required id or pricing_power fields causes rejection - horizon_years below minimum of 1 returns schema error - Payment not included or insufficient USDC causes x402 payment-required response ## How this service works Business Frameworks · business-frameworks/market/decide/rent@1.2, applied — POST pricing power, the crossing year, the base year and the horizon — or a list of nodes to rank; get durability (the years before new supply crosses demand) and rent over the horizon, ranked where several nodes are sent. Deterministic (the node's rule, no model): figures, verdict, action and check with the 186-token node text — schema free at GET /apply/market/decide/rent. ## Output Returns a deterministic analysis including: durability (number of years before new supply crosses demand), rent projection over the horizon, a verdict, a recommended action, a check, and the 186-token framework node text. When multiple nodes are submitted, results are ranked by durability/rent. No generative model is involved — output is rule-based per the framework node. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method", "bodyType", "body" ], "properties": { "body": { "type": "object", "required": [ "base_year" ], "properties": { "nodes": { "type": "array", "items": { "type": "object", "required": [ "id", "pricing_power" ], "properties": { "id": { "type": "string" }, "crossing_year": { "type": [ "integer", "null" ] }, "pricing_power": { "type": "number", "maximum": 10, "minimum": 0 } } }, "description": "Optional: several nodes to rank instead of one; then pricing_power and crossing_year at the top level are not read." }, "base_year": { "type": "integer", "description": "The year the question is asked in." }, "base_month": { "type": "integer", "maximum": 12, "minimum": 1, "description": "Optional: the month the question is asked in; a crossing year means its July, so sending the month measures durability as the node-map tool does. Without it, whole years." }, "crossing_year": { "type": [ "integer", "null" ], "description": "The first year in which the node's effective supply meets its demand on documented forecasts (market/balance). null if none is in sight inside the horizon." }, "horizon_years": { "type": "integer", "minimum": 1, "description": "The horizon in years. Optional; default 3." }, "pricing_power": { "type": "number", "maximum": 10, "minimum": 0, "description": "The node's pricing power from market/decide/pricing-power." } }, "description": "Shares and weights are fractions from 0 to 1 (0.65 means 65%). Scores run 0 to 10. Force scores are whole numbers 1 to 5, scored as pressure on the seller's margins (1 weak, 5 strong). Months are whole numbers. Years are calendar years for crossing and base, and a count for the horizon." }, "type": { "type": "string", "const": "http" }, "method": { "enum": [ "POST" ], "type": "string" }, "bodyType": { … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/business-frameworks-market-rent-decision-engine-5f2ef3be/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from business-frameworks.matryoshka-paradigms.workers.dev](https://www.zero.xyz/host/business-frameworks.matryoshka-paradigms.workers.dev/llms.txt)