Swytchcode CLI
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What is Swytchcode CLI?
Swytchcode CLI is an execution authority for agentic API integrations that sits between AI agents and production APIs, enforcing policy, determinism, and safety at every tool call. It handles authentication, retries, idempotency, and policy control across 2000+ APIs including Stripe, GitHub, Slack, and AWS. The CLI eliminates the need for per-service SDKs or glue code by providing one command to call any API with validated, deterministic, AI-native execution.
Key features include policy-controlled execution via tooling.json manifest, deterministic structured JSON output with no hallucinated fields or schema drift, built-in auth injection that pulls API keys and OAuth tokens from your environment automatically, retry strategies with exponential backoff and jitter, and idempotency key handling to prevent duplicate effects. The CLI supports runtime libraries for TypeScript/JavaScript, Python, and Go, plus MCP server integration for Cursor, Claude Code, and Copilot. Commands include swytchcode get to fetch integrations, swytchcode add to enable tools, swytchcode exec to run operations, swytchcode search to find integrations, swytchcode demo for sandbox testing without credentials, and swytchcode plan to preview workflow steps.
Swytchcode is built for developers and teams shipping AI agent workflows, API publishers wanting interactive docs, and engineering teams building third-party API integrations. It reduces integration time from weeks to minutes, achieves 95% faster integration from zero to first successful CLI call, and enables 97% developer adoption among those who run swytchcode exec. The tool works natively with modern AI coding assistants while providing guardrails that prevent agents from calling unauthorized APIs or breaking production through schema drift.
Swytchcode CLI pricing
Pricing model: Freemium
Free tier includes demo mode with no API keys or project setup required - run npx swytchcode stripe.create_payment automatically in demo mode against real-shaped sandbox responses. The CLI is available via npm install -g swytchcode, curl binary installation, or PowerShell installation with no account or setup needed for demo. Paid plans and pricing details are not explicitly listed on the website - users must create an account through the dashboard at app.swytchcode.com for live API calls. Full setup for production mode takes under 10 minutes and includes CLI installation, project initialization with tooling.json, integration fetching, and API key storage via swytchcode login.
Swytchcode CLI pros
- Sits between AI agents and production APIs for safe execution
- Handles 2000+ APIs including Stripe, GitHub, Slack, AWS with one command
- No per-service SDK or glue code required
- Policy-controlled execution via tooling.json manifest
- Deterministic structured JSON output every time
- No hallucinated fields or schema drift at runtime
- Built-in auth injection pulls API keys from environment automatically
- Retry logic with exponential backoff and jitter included
- Idempotency keys prevent duplicate charges or effects
- Schema validation catches drift before hitting production
- <50ms validation overhead for near-zero latency policy enforcement
- Works natively with Cursor, Claude Code, and Copilot via MCP
- Demo mode runs without API keys or project setup
- Runtime libraries available for JavaScript, Python, and Go
- One command to fetch manifest and configure policy automatically
- Search registry finds integrations with cached results for instant access
- Plan command previews ordered workflow steps before running
- Doctor command diagnoses setup issues automatically
- Check command finds integration update proposals from backend
- MCP server supports agent profile with 3 tools or full profile with all tools
Swytchcode CLI cons
- Requires Node.js 14+ for npm installation method
- macOS/Linux and Windows support only for binary installation
- x64 and arm64 architecture support required
- Login or SWYTCHCODE_TOKEN needed for upgrade, diff, and inspect commands
- Telemetry sends usage events only when authenticated
- No .env file loading - token must be in process environment
- Registry cache persists 1 hour potentially showing stale results
- CI environments need non-standard SWYTCHCODE_BIN path override
Frequently asked questions about Swytchcode CLI
What is Swytchcode CLI and what does it do?
Swytchcode CLI is the execution authority for agentic API integrations that sits between AI agents and production APIs, enforcing policy, determinism, and safety at every tool call. It handles authentication injection, retries with exponential backoff and jitter, idempotency to prevent duplicate effects, input validation against schema, endpoint resolution, version pinning, error classification, and structured output. The CLI owns execution entirely so you never write glue code for auth, retry logic, or error handling.
How do I install Swytchcode CLI?
You can install via three methods: curl on macOS/Linux with curl -fsSL https://cli.swytchcode.com/install.sh | sh, PowerShell on Windows with irm https://cli.swytchcode.com/install.ps1 | iex, or npm with npm install -g swytchcode requiring Node.js 14+. The curl and PowerShell methods download the correct binary for your architecture (x64 or arm64), verify checksums, and add the binary to your user PATH automatically.
Can I try Swytchcode without installing or having API keys?
Yes. Run npx swytchcode stripe.create_payment on any machine without installation, account, setup, or API keys. It automatically runs in demo mode against a real-shaped sandbox response so you can see what execution looks like. Add --explain to see what any command does before running it, or use swytchcode exec <canonical_id> --demo to run without credentials.
What APIs does Swytchcode support?
Swytchcode supports 2000+ APIs including Stripe, GitHub, Slack, AWS, Resend, and many more. You can pull any manifest with swytchcode get <integration> and your agent can call it in seconds without SDK or glue code. Use swytchcode search <keyword> to find integrations in the registry, with results cached for 1 hour.
How does policy control work with tooling.json?
tooling.json is your execution policy and trusted tool registry. When you run swytchcode add <canonical_id>, it embeds the full input schema including required fields, optional fields, header parameters, and idempotency key into tooling.json.tools. Every swytchcode exec call validates against this policy before the API call leaves your machine, ensuring no unauthorized calls ever happen. Runtime enforcement is automatic, not review-time hope.
How do I integrate with AI agents like Cursor or Claude Code?
Swytchcode works natively with Cursor, Claude Code, and Copilot via MCP server. Run swytchcode init to create .swytchcode/ and tooling.json while automatically registering the MCP server - Cursor writes .cursor/rules/swytchcode.mdc and merges the SSE URL into ~/.cursor/mcp.json, Claude writes CLAUDE.md and merges into ~/.claude/settings.json. The MCP server starts in the background so editor tools are available immediately without editor restart. Use swytchcode mcp serve with --profile agent for 3 tools or --profile full for all tools.
What happens when an API schema changes or field gets renamed?
Swytchcode catches schema drift before it hits production through schema validation. When Stripe renamed amount_cents to amount, Swytchcode would catch the old field being sent and prevent the silent 400 error. The CLI reads wrekenfile.yaml which contains the full integration spec with method shapes, HTTP definitions, endpoint paths, and validation rules. Run swytchcode check to find integration update proposals from the backend, swytchcode diff <library> to see method-level signature diffs, and swytchcode upgrade <library> [--apply] to approve pending updates.
How do retries and idempotency work?
Failed calls retry with exponential backoff and jitter to avoid blindly hammering rate limits. Duplicate requests are deduplicated so your agent never double-charges a customer. Idempotency keys are automatically handled - swytchcode get pulls the full parameter schemas including idempotency key requirements from the wrekenfile.yaml. The CLI owns retry logic entirely so you never write it yourself, preventing the 2 AM problem where retry logic hammers the API past rate limits and the whole chain silently fails.
What runtime libraries are available and how do I use them?
Official runtime packages let you call swytchcode exec directly from your language without shell boilerplate: TypeScript/JavaScript uses swytchcode-runtime with npm install swytchcode-runtime, Python uses swytchcode-runtime with pip install swytchcode-runtime, and Go uses gitlab.com/swytchcode/go-runtime with go get gitlab.com/swytchcode/go-runtime. The CLI binary is located automatically with no configuration needed in most environments. Set SWYTCHCODE_BIN=/path/to/binary to override for Docker or CI with non-standard install locations.