> ## Documentation Index > Fetch the complete documentation index at: https://docs.trynito.ai/llms.txt > Use this file to discover all available pages before exploring further. # List models > List OpenAI-compatible public model metadata without authentication. This route returns the same non-organization-specific catalog as `/api/v1/models`, including when credentials are supplied. Redis caches complete JSON responses for 24 hours and admin mutations or worker model syncs and price imports for any provider invalidate the shared generation. HTTP responses use Cache-Control: no-store; configured cache outages return 503. Inference authorization remains required. The response is aligned with gateway model discovery and exposes safe logical model IDs, supported parameters, privacy tiers and customer prices. Attestation and encryption evidence is returned by the attestation endpoint, not model discovery. ## OpenAPI ````yaml openapi.json GET /v1/models openapi: 3.1.0 info: contact: email: developers@trynito.ai name: Nito Developer Support url: https://docs.trynito.ai/support description: >- Nito developer API: inference, Fusion, model catalog, attestation, web retrieval, document parsing, API key management, balance, rate-limit snapshots, and MCP. termsOfService: https://trynito.ai/terms title: Nito API version: '2026-07-01' servers: - description: Configured gateway url: https://app.trynito.ai security: [] tags: - description: >- OpenAI Chat Completions-compatible inference routes backed by gateway routing, billing, privacy, and streaming controls. name: Chat - description: >- Stateless OpenAI Responses-compatible shims for agent clients, including the compact output-item endpoint used by standalone compaction flows. name: Responses - description: >- Anthropic Messages-compatible request, response, token-count, and streaming surfaces mapped into canonical gateway contracts. name: Messages - description: >- Model discovery and browser model-picker metadata for safe logical model selection. name: Models - description: >- Request-local Attestation metadata for supported Attestable models in the Confidential and Encrypted tiers. name: Attestation - description: >- Streamable HTTP MCP transport documented with resource-bound bearer-token authentication. name: MCP - description: >- Standalone, credential-authenticated web search and fetch without an inference model. name: Web - description: >- OAuth-authorized organization API key administration with explicit consent and current owner/admin authorization. name: API Keys - description: >- Browser billing, usage, referral, balance, auto top-up, and x402 funding surfaces using integer nanos. name: Billing externalDocs: description: Nito developer documentation url: https://docs.trynito.ai/nito paths: /v1/models: get: tags: - Models summary: List OpenAI-compatible models description: >- List OpenAI-compatible public model metadata without authentication. This route returns the same non-organization-specific catalog as `/api/v1/models`, including when credentials are supplied. Redis caches complete JSON responses for 24 hours and admin mutations or worker model syncs and price imports for any provider invalidate the shared generation. HTTP responses use Cache-Control: no-store; configured cache outages return 503. Inference authorization remains required. The response is aligned with gateway model discovery and exposes safe logical model IDs, supported parameters, privacy tiers and customer prices. Attestation and encryption evidence is returned by the attestation endpoint, not model discovery. operationId: listOpenAIModels parameters: - description: chat, image, embedding, other, or all example: chat in: query name: type required: false schema: enum: - chat - text - image - images - embedding - embeddings - other - all type: string - description: Case-insensitive model search example: gpt in: query name: q required: false schema: type: string - description: anon, private, confidential, or encrypted example: private in: query name: privacy_tier required: false schema: enum: - anon - private - confidential - encrypted type: string - description: frontier, open_source, open-source, or unknown example: frontier in: query name: source required: false schema: enum: - frontier - open_source - open-source - unknown type: string - description: Comma-separated capability filter example: reasoning,web_search in: query name: supports required: false schema: pattern: >- ^\s*(?:[Ff][Ii][Ll][Ee][-_][Aa][Tt][Tt][Aa][Cc][Hh][Mm][Ee][Nn][Tt][Ss]|[Ii][Mm][Aa][Gg][Ee][-_][Ii][Nn][Pp][Uu][Tt][Ss]|[Ii][Mm][Aa][Gg][Ee][-_][Gg][Ee][Nn][Ee][Rr][Aa][Tt][Ii][Oo][Nn]|[Ww][Ee][Bb][-_][Tt][Oo][Oo][Ll][Ss]|[Ww][Ee][Bb][-_][Ss][Ee][Aa][Rr][Cc][Hh]|[Ww][Ee][Bb][-_][Ff][Ee][Tt][Cc][Hh]|[Rr][Ee][Aa][Ss][Oo][Nn][Ii][Nn][Gg]|[Ff][Uu][Nn][Cc][Tt][Ii][Oo][Nn][-_][Tt][Oo][Oo][Ll][Ss]|[Tt][Oo][Oo][Ll][-_][Cc][Hh][Oo][Ii][Cc][Ee]|[Jj][Ss][Oo][Nn][-_][Mm][Oo][Dd][Ee]|[Ss][Tt][Rr][Uu][Cc][Tt][Uu][Rr][Ee][Dd][-_][Oo][Uu][Tt][Pp][Uu][Tt][Ss]|[Ss][Tt][Rr][Ii][Cc][Tt][-_][Ff][Uu][Nn][Cc][Tt][Ii][Oo][Nn][-_][Tt][Oo][Oo][Ll][Ss]|[Tt][Oo][Oo][Ll][-_][Cc][Aa][Ll][Ll][-_][Cc][Oo][Nn][Cc][Uu][Rr][Rr][Ee][Nn][Cc][Yy][-_][Cc][Oo][Nn][Tt][Rr][Oo][Ll]|[Pp][Aa][Rr][Aa][Ll][Ll][Ee][Ll][-_][Tt][Oo][Oo][Ll][-_][Cc][Aa][Ll][Ll][Ss]|[Ss][Tt][Oo][Pp][-_][Ss][Ee][Qq][Uu][Ee][Nn][Cc][Ee][Ss]|[Ff][Rr][Ee][Qq][Uu][Ee][Nn][Cc][Yy][-_][Pp][Ee][Nn][Aa][Ll][Tt][Yy]|[Pp][Rr][Ee][Ss][Ee][Nn][Cc][Ee][-_][Pp][Ee][Nn][Aa][Ll][Tt][Yy]|[Aa][Tt][Tt][Ee][Ss][Tt][Aa][Bb][Ll][Ee]|[Tt][Ee][Ee][-_][Aa][Tt][Tt][Ee][Ss][Tt][Aa][Tt][Ii][Oo][Nn]|[Ee][Nn][Cc][Rr][Yy][Pp][Tt][Ee][Dd])\s*(,\s*(?:[Ff][Ii][Ll][Ee][-_][Aa][Tt][Tt][Aa][Cc][Hh][Mm][Ee][Nn][Tt][Ss]|[Ii][Mm][Aa][Gg][Ee][-_][Ii][Nn][Pp][Uu][Tt][Ss]|[Ii][Mm][Aa][Gg][Ee][-_][Gg][Ee][Nn][Ee][Rr][Aa][Tt][Ii][Oo][Nn]|[Ww][Ee][Bb][-_][Tt][Oo][Oo][Ll][Ss]|[Ww][Ee][Bb][-_][Ss][Ee][Aa][Rr][Cc][Hh]|[Ww][Ee][Bb][-_][Ff][Ee][Tt][Cc][Hh]|[Rr][Ee][Aa][Ss][Oo][Nn][Ii][Nn][Gg]|[Ff][Uu][Nn][Cc][Tt][Ii][Oo][Nn][-_][Tt][Oo][Oo][Ll][Ss]|[Tt][Oo][Oo][Ll][-_][Cc][Hh][Oo][Ii][Cc][Ee]|[Jj][Ss][Oo][Nn][-_][Mm][Oo][Dd][Ee]|[Ss][Tt][Rr][Uu][Cc][Tt][Uu][Rr][Ee][Dd][-_][Oo][Uu][Tt][Pp][Uu][Tt][Ss]|[Ss][Tt][Rr][Ii][Cc][Tt][-_][Ff][Uu][Nn][Cc][Tt][Ii][Oo][Nn][-_][Tt][Oo][Oo][Ll][Ss]|[Tt][Oo][Oo][Ll][-_][Cc][Aa][Ll][Ll][-_][Cc][Oo][Nn][Cc][Uu][Rr][Rr][Ee][Nn][Cc][Yy][-_][Cc][Oo][Nn][Tt][Rr][Oo][Ll]|[Pp][Aa][Rr][Aa][Ll][Ll][Ee][Ll][-_][Tt][Oo][Oo][Ll][-_][Cc][Aa][Ll][Ll][Ss]|[Ss][Tt][Oo][Pp][-_][Ss][Ee][Qq][Uu][Ee][Nn][Cc][Ee][Ss]|[Ff][Rr][Ee][Qq][Uu][Ee][Nn][Cc][Yy][-_][Pp][Ee][Nn][Aa][Ll][Tt][Yy]|[Pp][Rr][Ee][Ss][Ee][Nn][Cc][Ee][-_][Pp][Ee][Nn][Aa][Ll][Tt][Yy]|[Aa][Tt][Tt][Ee][Ss][Tt][Aa][Bb][Ll][Ee]|[Tt][Ee][Ee][-_][Aa][Tt][Tt][Ee][Ss][Tt][Aa][Tt][Ii][Oo][Nn]|[Ee][Nn][Cc][Rr][Yy][Pp][Tt][Ee][Dd])\s*)*$ type: string - description: Minimum context window in tokens example: 0 in: query name: min_context required: false schema: minimum: 0 type: integer - description: Maximum input price per million tokens example: 0 in: query name: max_input_million_token_nanos required: false schema: minimum: 0 type: integer - description: Maximum output price per million tokens example: 0 in: query name: max_output_million_token_nanos required: false schema: minimum: 0 type: integer - description: Maximum combined price per million tokens example: 0 in: query name: max_combined_million_token_nanos required: false schema: minimum: 0 type: integer responses: '200': content: application/json: example: data: - architecture: input_modalities: - text - image modality: text->text output_modalities: - text capabilities: supports_image_inputs: true supports_reasoning: true supports_web_search: true context_window: 128000 created: 1778268600 description: General-purpose chat model. display_name: GPT 5.5 id: openai/gpt-5.5 object: model owned_by: nito privacy_tier: private source: frontier supported_parameters: - reasoning type: chat object: list schema: $ref: '#/components/schemas/ModelList' description: OK headers: Cache-Control: description: >- Full responses are cached internally in Redis; clients and intermediaries must not store them. example: no-store schema: type: string X-RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' X-RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' X-RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' '400': content: application/json: example: error: code: invalid_request message: The request is invalid. schema: $ref: '#/components/schemas/ErrorResponse' description: Invalid request headers: Cache-Control: description: >- Full responses are cached internally in Redis; clients and intermediaries must not store them. example: no-store schema: type: string '429': content: application/json: example: error: code: rate_limited message: rate limited schema: $ref: '#/components/schemas/ErrorResponse' description: Request rate limit exceeded headers: Cache-Control: description: >- Full responses are cached internally in Redis; clients and intermediaries must not store them. example: no-store schema: type: string Retry-After: description: >- Seconds to wait before retrying when the gateway can compute a retry window. example: '60' schema: type: string X-RateLimit-Limit: $ref: '#/components/headers/RateLimitLimit' X-RateLimit-Remaining: $ref: '#/components/headers/RateLimitRemaining' X-RateLimit-Reset: $ref: '#/components/headers/RateLimitReset' '500': content: application/json: example: error: code: internal_error message: internal error schema: $ref: '#/components/schemas/ErrorResponse' description: Internal server error headers: Cache-Control: description: >- Full responses are cached internally in Redis; clients and intermediaries must not store them. example: no-store schema: type: string '503': content: application/json: example: error: code: unavailable message: model discovery is temporarily unavailable schema: $ref: '#/components/schemas/ErrorResponse' description: Public catalog or configured Redis response cache unavailable headers: Cache-Control: description: >- Full responses are cached internally in Redis; clients and intermediaries must not store them. example: no-store schema: type: string security: [] components: schemas: ModelList: description: >- Schema for `ModelList` values returned by or accepted by the Nito gateway. example: data: - architecture: input_modalities: - text - image modality: text->text output_modalities: - text capabilities: supports_image_inputs: true supports_reasoning: true supports_web_search: true context_window: 128000 created: 1778268600 description: General-purpose chat model. display_name: GPT 5.5 id: openai/gpt-5.5 object: model owned_by: nito privacy_tier: private source: frontier type: chat supported_parameters: - reasoning object: list properties: data: description: The `data` field on `ModelList`. example: [] items: $ref: '#/components/schemas/Model' description: Nested schema within `ModelList` for `ModelList.data.items`. type: array object: description: The `object` field on `ModelList`. enum: - list example: list type: string required: - object - data type: object ErrorResponse: description: >- Schema for `ErrorResponse` values returned by or accepted by the Nito gateway. example: error: code: invalid_request message: The request is invalid. param: model properties: error: $ref: '#/components/schemas/Error' description: The `error` field on `ErrorResponse`. example: example required: - error type: object Model: description: Schema for `Model` values returned by or accepted by the Nito gateway. example: architecture: input_modalities: - text - image modality: text->text output_modalities: - text capabilities: supports_image_inputs: true supports_reasoning: true supports_web_search: true context_window: 128000 created: 1778268600 description: General-purpose chat model. display_name: GPT 5.5 id: openai/gpt-5.5 object: model owned_by: nito privacy_tier: private source: frontier type: chat supported_parameters: - reasoning properties: architecture: description: The `architecture` field on `Model`. example: {} properties: input_modalities: description: The `input_modalities` field on `Model`. example: [] items: description: >- Nested schema within `Model` for `Model.architecture.input_modalities.items`. type: string type: array modality: description: The `modality` field on `Model`. example: example type: string output_modalities: description: The `output_modalities` field on `Model`. example: [] items: description: >- Nested schema within `Model` for `Model.architecture.output_modalities.items`. type: string type: array required: - input_modalities - output_modalities - modality type: object capabilities: description: The `capabilities` field on `Model`. example: {} properties: supports_file_attachments: description: The `supports_file_attachments` field on `Model`. example: true type: boolean supports_image_generation: description: The `supports_image_generation` field on `Model`. example: true type: boolean supports_image_inputs: description: The `supports_image_inputs` field on `Model`. example: true type: boolean supports_reasoning: description: The `supports_reasoning` field on `Model`. example: true type: boolean supports_web_fetch: description: The `supports_web_fetch` field on `Model`. example: true type: boolean supports_web_search: description: The `supports_web_search` field on `Model`. example: true type: boolean type: object context_window: description: The `context_window` field on `Model`. example: 1 type: integer created: description: The `created` field on `Model`. example: 1778268600 type: integer description: description: The `description` field on `Model`. example: example type: string display_name: description: The `display_name` field on `Model`. example: example type: string id: description: The `id` field on `Model`. example: 00000000-0000-4000-8000-000000000001 type: string object: description: The `object` field on `Model`. enum: - model example: model type: string owned_by: description: The `owned_by` field on `Model`. example: example type: string pricing: description: The `pricing` field on `Model`. example: {} properties: cache_read_input_token_nanos: description: The `cache_read_input_token_nanos` field on `Model`. example: 1000000000 type: integer cache_write_input_token_nanos: description: The `cache_write_input_token_nanos` field on `Model`. example: 1000000000 type: integer currency_code: description: The `currency_code` field on `Model`. example: USD type: string image_output_nanos: description: The `image_output_nanos` field on `Model`. example: 1000000000 type: integer input_token_nanos: description: The `input_token_nanos` field on `Model`. example: 1000000000 type: integer output_token_nanos: description: The `output_token_nanos` field on `Model`. example: 1000000000 type: integer reasoning_output_token_nanos: description: The `reasoning_output_token_nanos` field on `Model`. example: 1000000000 type: integer unit: description: The `unit` field on `Model`. example: example type: string type: object privacy_tier: description: The `privacy_tier` field on `Model`. enum: - anon - private - confidential - encrypted example: anon type: string source: description: The `source` field on `Model`. example: example type: string supported_parameters: description: >- Sorted optional controls from the final effective route. structured_outputs and strict_function_tools are semantic qualifiers, not top-level request fields. This is not an exhaustive list of common request fields. example: [] items: description: >- Nested schema within `Model` for `Model.supported_parameters.items`. type: string type: array type: description: The `type` field on `Model`. example: example type: string required: - id - object - created - owned_by - description - type - source - architecture - capabilities - privacy_tier - supported_parameters type: object Error: description: Schema for `Error` values returned by or accepted by the Nito gateway. example: code: example message: example operation_id: 00000000-0000-4000-8000-000000000001 param: example properties: code: description: The `code` field on `Error`. example: example type: string message: description: The `message` field on `Error`. example: example type: string operation_id: description: The `operation_id` field on `Error`. example: 00000000-0000-4000-8000-000000000001 type: string param: description: The `param` field on `Error`. example: example type: string required: - message - code type: object headers: RateLimitLimit: description: Maximum requests for the controlling gateway request-rate bucket. schema: type: string RateLimitRemaining: description: >- Additional requests immediately available in the controlling gateway request-rate bucket. schema: type: string RateLimitReset: description: >- UTC Unix epoch seconds, rounded up, when the controlling gateway request-rate bucket is fully replenished. schema: type: string ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.