From 813de554c9b08e375fc52eebc96c28d7c2faf5c2 Mon Sep 17 00:00:00 2001
From: longyongshen <longyongshen@stepfun.com>
Date: Wed, 25 Mar 2026 16:32:10 +0800
Subject: [PATCH] =?UTF-8?q?feat(provider):=20add=20Step=20Fun=20(=E9=98=B6?=
 =?UTF-8?q?=E8=B7=83=E6=98=9F=E8=BE=B0)=20provider=20support?=
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Made-with: Cursor
---
 README.md                     | 3 +++
 nanobot/config/schema.py      | 1 +
 nanobot/providers/registry.py | 9 +++++++++
 3 files changed, 13 insertions(+)

diff --git a/README.md b/README.md
index ae2512eb0..7f686b683 100644
--- a/README.md
+++ b/README.md
@@ -846,6 +846,8 @@ Config file: `~/.nanobot/config.json`
 > - **VolcEngine / BytePlus Coding Plan**: Use dedicated providers `volcengineCodingPlan` or `byteplusCodingPlan` instead of the pay-per-use `volcengine` / `byteplus` providers.
 > - **Zhipu Coding Plan**: If you're on Zhipu's coding plan, set `"apiBase": "https://open.bigmodel.cn/api/coding/paas/v4"` in your zhipu provider config.
 > - **Alibaba Cloud BaiLian**: If you're using Alibaba Cloud BaiLian's OpenAI-compatible endpoint, set `"apiBase": "https://dashscope.aliyuncs.com/compatible-mode/v1"` in your dashscope provider config.
+> - **Step Fun (Mainland China)**: If your API key is from Step Fun's mainland China platform (stepfun.com), set `"apiBase": "https://api.stepfun.com/v1"` in your stepfun provider config.
+> - **Step Fun Step Plan**: Exclusive discount links for the nanobot community: [Overseas](https://platform.stepfun.ai/step-plan) · [Mainland China](https://platform.stepfun.com/step-plan)
 
 | Provider | Purpose | Get API Key |
 |----------|---------|-------------|
@@ -867,6 +869,7 @@ Config file: `~/.nanobot/config.json`
 | `zhipu` | LLM (Zhipu GLM) | [open.bigmodel.cn](https://open.bigmodel.cn) |
 | `ollama` | LLM (local, Ollama) | — |
 | `mistral` | LLM | [docs.mistral.ai](https://docs.mistral.ai/) |
+| `stepfun` | LLM (Step Fun/阶跃星辰) | [platform.stepfun.com](https://platform.stepfun.com) |
 | `ovms` | LLM (local, OpenVINO Model Server) | [docs.openvino.ai](https://docs.openvino.ai/2026/model-server/ovms_docs_llm_quickstart.html) |
 | `vllm` | LLM (local, any OpenAI-compatible server) | — |
 | `openai_codex` | LLM (Codex, OAuth) | `nanobot provider login openai-codex` |
diff --git a/nanobot/config/schema.py b/nanobot/config/schema.py
index 15fcacafe..c8b69b42e 100644
--- a/nanobot/config/schema.py
+++ b/nanobot/config/schema.py
@@ -77,6 +77,7 @@ class ProvidersConfig(Base):
     moonshot: ProviderConfig = Field(default_factory=ProviderConfig)
     minimax: ProviderConfig = Field(default_factory=ProviderConfig)
     mistral: ProviderConfig = Field(default_factory=ProviderConfig)
+    stepfun: ProviderConfig = Field(default_factory=ProviderConfig)  # Step Fun (阶跃星辰)
     aihubmix: ProviderConfig = Field(default_factory=ProviderConfig)  # AiHubMix API gateway
     siliconflow: ProviderConfig = Field(default_factory=ProviderConfig)  # SiliconFlow (硅基流动)
     volcengine: ProviderConfig = Field(default_factory=ProviderConfig)  # VolcEngine (火山引擎)
diff --git a/nanobot/providers/registry.py b/nanobot/providers/registry.py
index 206b0b504..e42e1f95e 100644
--- a/nanobot/providers/registry.py
+++ b/nanobot/providers/registry.py
@@ -286,6 +286,15 @@ PROVIDERS: tuple[ProviderSpec, ...] = (
         backend="openai_compat",
         default_api_base="https://api.mistral.ai/v1",
     ),
+    # Step Fun (阶跃星辰): OpenAI-compatible API
+    ProviderSpec(
+        name="stepfun",
+        keywords=("stepfun", "step"),
+        env_key="STEPFUN_API_KEY",
+        display_name="Step Fun",
+        backend="openai_compat",
+        default_api_base="https://api.stepfun.com/v1",
+    ),
     # === Local deployment (matched by config key, NOT by api_base) =========
     # vLLM / any OpenAI-compatible local server
     ProviderSpec(