diff --git a/docs/proxy/config_settings.md b/docs/proxy/config_settings.md
index 2cb026249..b3c1c90ee 100644
--- a/docs/proxy/config_settings.md
+++ b/docs/proxy/config_settings.md
@@ -795,6 +795,9 @@ router_settings:
 | SAMBANOVA_API_BASE | Base URL for SambaNova. Default is https://api.sambanova.ai/v1
 | SCX_API_BASE | Base URL for SCX.ai. Default is https://api.scx.ai/v1
 | SCX_API_KEY | API key for SCX.ai
+| SEARCH1API_API_BASE | Base URL for the Search1API search provider. Default is https://api.search1api.com
+| SEARCH1API_API_KEY | API key for the Search1API search provider
+| SEARCH1API_KEY | Fallback API key for the Search1API search provider, the name Search1API's own CLI and SDKs read
 | SEARCHAPI_API_BASE | Base URL for the SearchApi search provider
 | SERPER_API_BASE | Base URL for the Serper search provider
 | SONIOX_API_BASE | Base URL for Soniox. Default is https://api.soniox.com
diff --git a/docs/search/index.md b/docs/search/index.md
index 134708b7b..4f14bec47 100644
--- a/docs/search/index.md
+++ b/docs/search/index.md
@@ -2,7 +2,7 @@
 
 | Feature | Supported | 
 |---------|-----------|
-| Supported Providers | `perplexity`, `tavily`, `parallel_ai`, `exa_ai`, `brave`, `google_pse`, `dataforseo`, `firecrawl`, `searxng`, `linkup`, `duckduckgo`, `searchapi`, `serper`, `you_com`, `apiserpent`, `agentcore`, `nimble`, `bing_grounding` |
+| Supported Providers | `perplexity`, `tavily`, `parallel_ai`, `exa_ai`, `brave`, `google_pse`, `dataforseo`, `firecrawl`, `searxng`, `linkup`, `duckduckgo`, `searchapi`, `serper`, `you_com`, `apiserpent`, `agentcore`, `nimble`, `bing_grounding`, `search1api` |
 | Cost Tracking | ✅ |
 | Logging | ✅ |
 | Load Balancing | ❌ |
@@ -217,7 +217,7 @@ See the [official Perplexity Search documentation](https://docs.perplexity.ai/ap
 | Parameter | Type | Required | Description |
 |-----------|------|----------|-------------|
 | `query` | string or array | Yes | Search query. Can be a single string or array of strings |
-| `search_provider` | string | Yes (SDK) | The search provider to use: `"perplexity"`, `"tavily"`, `"parallel_ai"`, `"exa_ai"`, `"brave"`, `"google_pse"`, `"dataforseo"`, `"firecrawl"`, `"searxng"`, `"linkup"`, `"duckduckgo"`, `"searchapi"`, `"serper"`, or `"you_com"` or `"apiserpent"` or `"agentcore"` or `"bing_grounding"` |
+| `search_provider` | string | Yes (SDK) | The search provider to use: `"perplexity"`, `"tavily"`, `"parallel_ai"`, `"exa_ai"`, `"brave"`, `"google_pse"`, `"dataforseo"`, `"firecrawl"`, `"searxng"`, `"linkup"`, `"duckduckgo"`, `"searchapi"`, `"serper"`, or `"you_com"` or `"apiserpent"` or `"agentcore"` or `"bing_grounding"` or `"search1api"` |
 | `search_tool_name` | string | Yes (Proxy) | Name of the search tool configured in `config.yaml` |
 | `max_results` | integer | No | Maximum number of results to return (1-20). Default: 10 |
 | `search_domain_filter` | array | No | List of domains to filter results (max 20 domains) |
@@ -291,6 +291,7 @@ The response follows Perplexity's search format with the following structure:
 | Bedrock AgentCore | `AGENTCORE_GATEWAY_URL` (required), AWS credentials or `AGENTCORE_GATEWAY_TOKEN` | `agentcore` |
 | Nimble | `NIMBLE_API_KEY` | `nimble` |
 | Grounding with Bing (Microsoft Foundry) | `BING_GROUNDING_PROJECT_ENDPOINT`, `BING_GROUNDING_MODEL` (required), `api_key` or `BING_GROUNDING_TOKEN` or azure-identity | `bing_grounding` |
+| Search1API | `SEARCH1API_API_KEY` | `search1api` |
 
 See the individual provider documentation for detailed setup instructions and provider-specific parameters.
 
diff --git a/docs/search/search1api.md b/docs/search/search1api.md
new file mode 100644
index 000000000..2e49d1ce3
--- /dev/null
+++ b/docs/search/search1api.md
@@ -0,0 +1,112 @@
+# Search1API Search
+
+**Get API Key:** [https://app.s1.dev/api-keys](https://app.s1.dev/api-keys)
+
+[Search1API](https://s1.dev) is a web search API for AI agents that fronts Google, Bing, DuckDuckGo, Yahoo and site-specific engines (GitHub, arXiv, Reddit, YouTube, Wikipedia and more) behind one endpoint. One search costs 1 credit.
+
+## LiteLLM Python SDK
+
+```python showLineNumbers title="Search1API Search"
+import os
+from litellm import search
+
+os.environ["SEARCH1API_API_KEY"] = "..."
+
+response = search(
+    query="latest AI developments",
+    search_provider="search1api",
+    max_results=5
+)
+
+for result in response.results:
+    print(f"{result.title}: {result.url}")
+    print(f"Snippet: {result.snippet}\n")
+```
+
+## LiteLLM AI Gateway
+
+### 1. Setup config.yaml
+
+```yaml showLineNumbers title="config.yaml"
+model_list:
+  - model_name: gpt-5.6
+    litellm_params:
+      model: gpt-5.6
+      api_key: os.environ/OPENAI_API_KEY
+
+search_tools:
+  - search_tool_name: search1api-search
+    litellm_params:
+      search_provider: search1api
+      api_key: os.environ/SEARCH1API_API_KEY
+```
+
+### 2. Start the proxy
+
+```bash
+litellm --config /path/to/config.yaml
+
+# RUNNING on http://0.0.0.0:4000
+```
+
+### 3. Test the search endpoint
+
+```bash showLineNumbers title="Test Request"
+curl http://0.0.0.0:4000/v1/search/search1api-search \
+  -H "Authorization: Bearer sk-1234" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "query": "latest AI developments",
+    "max_results": 5
+  }'
+```
+
+## Unified Parameters
+
+| Unified spec parameter | Mapped to Search1API parameter |
+|------------------------|-------------------------------|
+| `max_results` | `max_results` (1-50; the unified default of 10 is sent when omitted) |
+| `search_domain_filter` | `include_sites`; entries prefixed with `-` go to `exclude_sites` |
+| `country` | *ignored (no equivalent; use `language` below)* |
+| `max_tokens_per_page` | *ignored (no equivalent)* |
+
+## Provider-specific Parameters
+
+```python showLineNumbers title="Search1API Search with Provider-specific Parameters"
+import os
+from litellm import search
+
+os.environ["SEARCH1API_API_KEY"] = "..."
+
+response = search(
+    query="vector database benchmarks",
+    search_provider="search1api",
+    max_results=5,
+    # Search1API-specific parameters
+    search_service="github",   # google (default), bing, duckduckgo, yahoo, x, reddit,
+                               # github, youtube, arxiv, wechat, bilibili, imdb, wikipedia
+    time_range="month",        # day, week, month, year
+    language="en",             # language code, e.g. en, zh, de
+)
+
+for result in response.results:
+    print(result.title, result.url)
+```
+
+| Parameter | Type | Description |
+|-----------|------|-------------|
+| `search_service` | string | Engine to query. Defaults to `google` |
+| `time_range` | string | `day`, `week`, `month` or `year` |
+| `language` | string | Language code for the results, e.g. `en`, `zh`, `de` |
+| `include_sites` | array | Only return results from these sites. Wins over `search_domain_filter` when both are given |
+| `exclude_sites` | array | Drop results from these sites. Wins over `search_domain_filter` when both are given |
+
+Search1API's `crawl_results` and `image` parameters are rejected with a `ValueError`: the unified response has no field for fetched page text or image URLs, and each fetched page would bill an extra credit that LiteLLM cost tracking cannot see. Call Search1API's `/crawl` endpoint directly when you need page content.
+
+See the [Search1API search reference](https://s1.dev/docs/basic/search) for the full parameter set.
+
+## Response Notes
+
+Search1API returns `title`, `link` and `snippet` for each result, which map onto the unified `title`, `url` and `snippet` fields. There is no publication date, so `date` is always `null`.
+
+Set `SEARCH1API_API_BASE` to override the default `https://api.search1api.com` endpoint. `SEARCH1API_KEY`, the variable Search1API's own CLI and SDKs read, is honored as a fallback when `SEARCH1API_API_KEY` is not set.
diff --git a/sidebars.js b/sidebars.js
index 4bbeb3866..ec9a2f4a4 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -977,6 +977,7 @@ const sidebars = {
             "search/agentcore",
             "search/nimble",
             "search/bing_grounding",
+            "search/search1api",
           ]
         },
         "skills",