> ## Documentation Index > Fetch the complete documentation index at: https://aisa.one/docs/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > - Base URLs: models `https://api.aisa.one/v1` (Gemini GenerateContent: `https://api.aisa.one/v1beta`); data APIs `https://api.aisa.one/apis/v1`. The `servers` of each operation in https://aisa.one/openapi.yaml is authoritative. > - Auth: `Authorization: Bearer $AISA_API_KEY`. Never print, log, or commit the key. > - MCP (preferred for agents): `https://mcp.aisa.one/mcp`, signed in with OAuth, so there is no key to paste. > - Agent Skill: `npx skills add AIsa-team/agent-skills --skill aisa`. Fallback with the AIsa CLI: `aisa skills install aisa`. > - Spending: docs, https://aisa.one/models, https://aisa.one/api, `/v1/models`, and MCP `search`, `list_categories`, `get_details`, `batch_quote`, and the `account` operation are free. Quote the exact calls before running them (MCP `batch_quote`, CLI `aisa quote --json`). If the quote reports `auto_execute_eligible: true`, run it unless the user set a tighter limit or asked only for a quote. Otherwise, tell the user in one message the planned calls, the quoted price, and a total USD budget for the task, then wait for approval. Direct HTTP calls follow the stricter rule at https://aisa.one/docs/get-started/cli.md#direct-http-fallback. Do not make paid calls to test availability. Full rule: https://aisa.one/llms.txt # Decode License Plate > A request reference price is not currently available; use a request quote where supported. Declared unit rate: $0.000001 USD per provider_credit. Account-specific pricing and final settlement may differ. ## Request contract * **Method and path:** POST /apis/v1/carsxe/decode-license-plate * **Availability:** enabled * **Request URL template:** `https://api.aisa.one/apis/v1/carsxe/decode-license-plate` * **Runtime facts:** a11ac71cac6d1d02a98d1e475ace62f7d124b62c3ad8fcbb0485f9ddeab9314d [Complete OpenAPI definition](https://aisa.one/docs/reference-contracts/carsxe.json) Effective request and pricing declaration (including authentication and referenced schemas): ```json theme={null} { "operationId": "carsxe.decode-license-plate", "method": "POST", "path": "/apis/v1/carsxe/decode-license-plate", "servers": [ { "url": "https://api.aisa.one" } ], "parameters": [], "security": [ { "bearerAuth": [] } ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "properties": { "plate": { "minLength": 1, "type": "string", "description": "License plate text exactly as displayed, without adding separators.", "examples": [ "7XER187" ] }, "state": { "minLength": 1, "type": "string", "description": "State or regional code; required for US, AU, CA, and PK lookups.", "examples": [ "CA" ] }, "country": { "enum": [ "US" ], "pattern": "^[A-Za-z]{2}$", "type": "string", "description": "ISO 3166-1 alpha-2 country code." }, "district": { "type": "string", "minLength": 1, "description": "District required for Pakistan Khyber-Pakhtunkhwa registrations. This regional variant is officially documented but not live-verified." }, "require_vin": { "enum": [ false ], "type": "boolean", "description": "For Spain only, require a VIN in the result. This doubles the price." } }, "required": [ "country", "plate", "require_vin", "state" ] } } } }, "x-aisa-status": "enabled", "x-aisa-pricing": { "cost_contract": "response_units", "customer_multiplier": 1.0, "customer_pricing": "provider_cost_multiplier", "estimate_source": "unavailable", "estimate_unavailable_reason": "reference_request_unavailable", "evidence_source": "response_body", "maximum_units": 10000000, "unit": "provider_credit", "unit_rate_usd": 1e-06 }, "components": { "securitySchemes": { "bearerAuth": { "scheme": "bearer", "type": "http" } } } } ``` ## Cost and request rules A request reference price is not currently available; use a request quote where supported. Declared unit rate: \$0.000001 USD per provider\_credit. Account-specific pricing and final settlement may differ. Published reference values are not an account-specific quote or a settled charge. For endpoints supporting X-AISA-Cost-Mode: quote, obtain a free quote for your exact request before execution; reconcile the settled cost with response metadata and Usage Logs. USD amounts use 1,000,000 integer micro-USD per dollar. * **Declared unit rate (USD):** 1e-06 * **Billing unit:** provider\_credit * **Cost contract:** response\_units * **Published reference multiplier:** 1.0 * **Declared maximum count/units:** 10000000 * **Settlement evidence source:** response\_body ## OpenAPI ````yaml reference-contracts/carsxe.json POST /apis/v1/carsxe/decode-license-plate openapi: 3.1.0 info: description: '' title: CarsXE version: '1' x-aisa-capabilities: idempotency: Idempotency-Key max_price: X-AISA-Max-Price-USD quote: header: X-AISA-Cost-Mode value: quote x-aisa-configured-paths: - /apis/v1/carsxe/decode-license-plate - /apis/v1/carsxe/decode-obd-code - /apis/v1/carsxe/get-market-value - /apis/v1/carsxe/get-vehicle-history - /apis/v1/carsxe/get-vehicle-images - /apis/v1/carsxe/get-vehicle-recalls - /apis/v1/carsxe/get-vehicle-specs - /apis/v1/carsxe/get-year-make-model-data - /apis/v1/carsxe/recognize-license-plate x-aisa-document: facts_hash: a11ac71cac6d1d02a98d1e475ace62f7d124b62c3ad8fcbb0485f9ddeab9314d generator_version: '3' protocol_version: '1' schema_version: '1' composer_version: '28' response_pending: [] document_hash: sha256:37622fb278337a95fc97354e283ba13439d7f763d3983b7892781d44ec781257 x-aisa-plans: builder: 1 display_plan: payg payg: 1 similarweb_payg: 1 team: 1 version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb x-aisa-provider: carsxe x-aisa-catalogs: carsxe: title: CarsXE description: '' x-aisa-document: facts_hash: a11ac71cac6d1d02a98d1e475ace62f7d124b62c3ad8fcbb0485f9ddeab9314d generator_version: '3' protocol_version: '1' schema_version: '1' x-aisa-plans: builder: 1 display_plan: payg payg: 1 similarweb_payg: 1 team: 1 version: e70a0959cd1b93b84ae16dffd7a538273ddb9c1d46277b82823c37ff1b6bc0fb x-aisa-capabilities: idempotency: Idempotency-Key max_price: X-AISA-Max-Price-USD quote: header: X-AISA-Cost-Mode value: quote servers: - url: https://api.aisa.one security: - bearerAuth: [] paths: /apis/v1/carsxe/decode-license-plate: post: tags: - CarsXE summary: Decode License Plate description: >- A request reference price is not currently available; use a request quote where supported. Declared unit rate: $0.000001 USD per provider_credit. Account-specific pricing and final settlement may differ. operationId: carsxe.decode-license-plate requestBody: required: true content: application/json: schema: type: object properties: plate: type: string examples: - 7XER187 minLength: 1 description: >- License plate text exactly as displayed, without adding separators. state: type: string examples: - CA minLength: 1 description: >- State or regional code; required for US, AU, CA, and PK lookups. country: enum: - US pattern: ^[A-Za-z]{2}$ type: string description: ISO 3166-1 alpha-2 country code. district: type: string minLength: 1 description: >- District required for Pakistan Khyber-Pakhtunkhwa registrations. This regional variant is officially documented but not live-verified. require_vin: enum: - false type: boolean description: >- For Spain only, require a VIN in the result. This doubles the price. required: - country - plate - require_vin - state responses: '200': description: Tool result data content: application/json: schema: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__public_data default: content: application/json: schema: {} description: >- Error response; upstream passthrough responses may use provider formats components: schemas: Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__public_data: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__0dd1190caf8344b1 Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__0dd1190caf8344b1: type: object required: - success - input properties: vin: type: string make: type: string trim: type: string year: anyOf: - type: string - type: integer color: type: string input: $ref: >- #/components/schemas/Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__0e0cd5d1e10a1965 model: type: string style: type: string success: type: boolean assembly: type: string fuel_type: type: string body_style: type: string drive_type: type: string description: type: string engine_size: type: string transmission: type: string additionalProperties: true Response576A0Ea506F3_connect_CARSXE_DECODE_LICENSE_PLATE__output__0e0cd5d1e10a1965: type: object properties: plate: type: string state: type: string country: type: string district: type: string require_vin: type: boolean securitySchemes: bearerAuth: scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.