feat(providers): add TrustedRouter declarative provider (#11422)

Signed-off-by: Abhijay Jain <Abhijay007j@gmail.com>

crates/goose-providers/src/declarative.rs

@@ -52,6 +52,7 @@ pub(crate) mod declarative_providers {
         tanzu,
         tensorix,
         together,
+        trustedrouter,
         venice,
         vercel_ai_gateway,
         zai,

crates/goose-providers/src/declarative/definitions/trustedrouter.json

@@ -0,0 +1,52 @@
+{
+  "name": "trustedrouter",
+  "engine": "openai",
+  "display_name": "TrustedRouter",
+  "description": "Models from OpenAI, Anthropic, Google, DeepSeek and others via TrustedRouter's OpenAI-compatible API, with per-request routing and failover.",
+  "api_key_env": "TRUSTEDROUTER_API_KEY",
+  "base_url": "https://api.trustedrouter.com/v1",
+  "dynamic_models": true,
+  "models": [
+    {
+      "name": "trustedrouter/auto",
+      "context_limit": 200000
+    },
+    {
+      "name": "trustedrouter/fast",
+      "context_limit": 128000
+    },
+    {
+      "name": "trustedrouter/cheap",
+      "context_limit": 128000
+    },
+    {
+      "name": "trustedrouter/zdr",
+      "context_limit": 200000
+    },
+    {
+      "name": "trustedrouter/e2e",
+      "context_limit": 128000
+    },
+    {
+      "name": "anthropic/claude-opus-4-7",
+      "context_limit": 1000000
+    },
+    {
+      "name": "anthropic/claude-sonnet-4-6",
+      "context_limit": 1000000
+    },
+    {
+      "name": "openai/gpt-5.4-mini",
+      "context_limit": 400000
+    }
+  ],
+  "preserves_thinking": true,
+  "supports_streaming": true,
+  "model_doc_link": "https://api.trustedrouter.com/v1/models",
+  "setup_steps": [
+    "Sign in to https://trustedrouter.com",
+    "Open https://trustedrouter.com/keys",
+    "Create a new API key",
+    "Copy the key and paste it above"
+  ]
+}

documentation/docs/getting-started/providers.md

@@ -62,6 +62,7 @@ goose is compatible with a wide range of LLM providers, allowing you to choose a
 | [Snowflake](https://docs.snowflake.com/user-guide/snowflake-cortex/aisql#choosing-a-model) | Access the latest models using Snowflake Cortex services, including Claude models. **Requires a Snowflake account and programmatic access token (PAT)**.                                                     | `SNOWFLAKE_HOST`, `SNOWFLAKE_TOKEN`                                                                                                                                                                 |
 | [VMware Tanzu Platform](https://techdocs.broadcom.com/us/en/vmware-tanzu/platform/ai-services/10-3/ai/index.html) | Enterprise-managed LLM access through AI Services on VMware Tanzu Platform. Models are fetched dynamically from the endpoint. | `TANZU_AI_API_KEY`, `TANZU_AI_ENDPOINT` |
 | [Tetrate Agent Router Service](https://router.tetrate.ai)                   | Unified API gateway for AI models including Claude, Gemini, GPT, open-weight models, and others. Supports PKCE authentication flow for secure API key generation.                                                                                | `TETRATE_API_KEY`, `TETRATE_HOST` (optional)                                                                                                                                        |
+| [TrustedRouter](https://trustedrouter.com)                                  | Models from OpenAI, Anthropic, Google, DeepSeek and others via TrustedRouter's OpenAI-compatible API, with per-request routing and failover.                                                                                                     | `TRUSTEDROUTER_API_KEY`                                                                                                                                                             |
 | [Venice AI](https://venice.ai/home)                                         | Provides access to open source models like Llama, Mistral, and Qwen while prioritizing user privacy. **Requires an account and an [API key](https://docs.venice.ai/overview/guides/generating-api-key)**.                 | `VENICE_API_KEY`, `VENICE_HOST` (optional), `VENICE_BASE_PATH` (optional), `VENICE_MODELS_PATH` (optional)                                                                          |
 | [Cerebras](https://cerebras.ai/)                                            | Fast inference on Cerebras wafer-scale engines with models like Llama, Qwen, and others.                                                                                                                                  | `CEREBRAS_API_KEY`                                                                                                                                                                  |
 | [xAI](https://x.ai/)                                                        | Access to xAI's Grok models including grok-3, grok-3-mini, and grok-3-fast with 131,072 token context window.                                                                                                            | `XAI_API_KEY`, `XAI_HOST` (optional)                                                                                                                                                |