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StepFun

Step Plan

Step Plan is a subscription access plan within StepFun Open Platform. The docs present it as a separate commercial route for supported models and integrations, with a dedicated base URL at https://api.stepfun.ai/step_plan/v1. It references tools such as OpenClaw, Claude Code, Trae, Cursor, Cline, Goose, OpenCode, Kilo Code, Roo Code, Zed and Hermes-Agent as supported integration paths, but the product itself is a plan and routing layer rather than a coding tool.

Partially availableFull English UIPublic APIPaidTrusted

Quick answers

At a glance

Overview
StepFun's subscription access plan for the StepFun Open Platform and supported agent or tool integrations.
Best fit
Developers who want a predictable subscription quota for coding agents, long-context repository work and tool-calling automation.
Trust
3/3 sources verified, recently checked · 2026-05-17
Coverage
100/100

Editorial verdict

Best for

Developers who want a predictable subscription quota for coding agents, long-context repository work and tool-calling automation.

Avoid if

Avoid it when you need MCP at launch, a generic direct API balance model, or tools not covered by Step Plan integrations.

Why it matters

Step Plan deserves a separate AI Coding entry because it is toolchain- and agent-workflow specific, not just a model API.

Pricing

Flash Mini starts at $6.99; Flash Plus $9.99; Flash Pro $29; Flash Max $99

Payment

WeChat Pay, Stripe for overseas users, Subscription quota

Commercial use

Use is governed by the Step Plan paid service agreement and supported-tool terms; account balance and Step Plan quota are separate.

Privacy

Agent workflows can expose repository context and tool actions; review StepFun terms and each coding tool's data policy.

Use-case fit

Claude Code backend

Strong

Use the documented Claude Code integration with the Step Plan endpoint when testing Step 3.5 Flash for coding agents.

OpenClaw agent workflow

Strong

The docs position Step 3.5 Flash as optimized for low-latency long-running tool-calling agent workflows.

Cost-controlled high-frequency coding

Medium

Subscription prompts and weekly limits can be easier to manage than raw token billing for frequent tool use.

Global user checklist

RegistrationPartialSubscription requires account setup and supported tool configuration.
English UIConfirmedEnglish Step Plan docs and integration guides are available.
International paymentConfirmedFAQ states WeChat Pay and Stripe for overseas users.
API and docsConfirmedIntegration guides exist for Claude Code, OpenClaw, OpenCode, Kilo Code, Roo Code, Cline, Goose, Zed and Hermes-Agent.
Coverage · 100/100

Step Plan model coverage and promotional pricing can change; confirm in the plan page before subscribing.

Pros

  • - Explicitly designed for high-frequency coding and agent workflows
  • - Integrations cover OpenClaw, Claude Code, OpenCode, Kilo Code, Roo Code, Cline, Goose and more
  • - Step 3.5 Flash 2603 adds Low Think Mode for lower token consumption

Cons

  • - MCP is not supported at launch according to the FAQ
  • - Dedicated Step Plan base URL differs from the standard API URL

Decision paths

Compare with Qwen Token Plan

Both are subscription-style plans for coding and agent usage.

Compare with Kimi Code

Kimi Code is a productized coding-agent path rather than a model-plan backend.

Sources

Step Plan overview

docs · en · verified 2026-05-17

Documents subscription pricing, supported models, supported tools and FAQ.

Claude Code Integration Guide

docs · en · verified 2026-05-17

Confirms Claude Code integration path.

OpenClaw Integration Guide

docs · en · verified 2026-05-17

Confirms OpenClaw integration path.

Reviews