Start free, then upgrade as your production traffic grows. Need volume or an SLA? Talk to us.
Prototype your agent, no card needed
Ship your first AI product without watching every call
Cancel anytime, no questions asked
For agents in production that real users depend on
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High-volume or multi-agent systems
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Volume, compliance, and hands-on support for larger teams
Every HTTP call routed through the Callio gateway counts as one request, regardless of the upstream API, method, or payload size. Sandbox key traffic never counts toward your quota.
500 proxy requests per month and 2 sandbox keys so you can build, test, and install MCP into your agent before committing to a paid tier. No card required.
Requests return a 429 until the next billing period or until you upgrade to a higher tier. Sandbox keys are not counted toward monthly plan limits.
For most upstream APIs, yes — you bring your own key (e.g., your OpenAI key, your SendGrid key) and Callio injects it at the proxy. It is stored AES-256 encrypted. Some public APIs work without any provider key.
Yes. Upgrade instantly and the new limits take effect immediately. Downgrade takes effect at the end of your current billing period. No lock-in contracts on self-serve plans.
Custom volume, SLAs, security reviews, dedicated support, and annual invoicing — contact us and we'll tailor a plan to your agent traffic and compliance needs.