Swytchcode
Execution layer that verifies AI agent API callsCheck, retry, and audit every call your agent makes
Highlights
What you can do with it
- A customer onboarding agent sets up CRM, billing, and welcome emails in one flow.
- A payment agent charges a card only after the request passes verification.
- An error escalation agent files tickets and alerts the team when authentication fails.
How to use it
- 1 Install the CLI by running npm install -g swytchcode.
- 2 Pull the API manifest you need, for example swytchcode get stripe.
- 3 Set policy rules such as allow lists, rate limits, and dry run in tooling.json.
- 4 Run verified calls with swytchcode exec, for example swytchcode exec stripe create payment.
Who it is for
Pros
- Adds verification, retries, and idempotence without rewriting agent logic.
- Policy rules and audit logs make agent actions safer and easier to debug.
- A free plan with 1000 calls a month lets you try it with no credit card.
Limitations
- The free plan is capped at 1000 execution calls a month and that limit could change.
- It needs policy setup in tooling.json and some CLI comfort, so there is a learning curve.
- It is an execution layer, not a fix for badly designed agent logic upstream.
What Swytchcode is
Swytchcode is a tool call execution layer that sits between an AI agent and the APIs it uses. In production, agents often send malformed requests, fail silently, or run without any guardrails. Swytchcode verifies each call against schema and policy rules before it executes, handles authentication between the agent and the API, retries failed calls, keeps calls idempotent, and writes a detailed audit trail. It supports more than 2000 APIs and does not require you to rewrite your agent logic, so you can drop it in front of the tools your agent already calls. The free plan includes 1000 execution calls a month and full access to the core CLI, with no credit card required, so you can test it before you pay.
What you can do with it
- Validate every API call against a schema and your own policy rules before it runs.
- Handle authentication, automatic retries, and idempotence to reduce failed or duplicated calls.
- Define allow lists, block lists, rate limits, and dry run modes in a tooling.json file.
- Keep a full log and audit trail of each call for debugging and monitoring.
Who it is for
- Developers building AI agents that touch real production APIs and need them to behave.
- Enterprise teams that want policy control and audit trails over what an agent does.
- Data scientists running agent driven data jobs who want safer, retried API calls.
What to watch out for
The free plan is capped at 1000 execution calls a month, and that limit could change as the product evolves. Swytchcode needs some setup, including policy rules in a tooling.json file and comfort with a command line interface, so there is a learning curve for newcomers. It is an execution layer, not a cure for poorly designed agent logic, so you still need sound prompts and workflows upstream. Because it wraps external APIs, its behaviour also depends on those services staying stable, well documented, and correctly configured on your side.
FAQ
What does the free plan include?
It includes 1000 execution calls a month and full access to the core CLI, with no credit card required.
Do I need to rewrite my agent to use it?
No. It sits between your agent and the APIs, so you keep your existing logic and just route calls through Swytchcode.
How does it make calls safer?
It checks each call against schema and policy, handles authentication, retries failures, keeps calls idempotent, and logs an audit trail.
Why it is free
What the official page says： free planno credit card
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
