API Gateway & Tool-Calling Safety Review
Design strict validation boundaries, schema sandboxes, and rate-limit guardrails for autonomous function calling.
Overview & Technical Scope
We audit your internal and external REST/gRPC endpoints to ensure functions exposed to automated agents cannot trigger unauthorized state changes or resource exhaustion.
Target Audience & Applicability
Backend software teams building webhook actions, plugin ecosystems, or model tool-calling integrations.
Key Deliverables
- API Schema Strictness & Validation Audit
- Function Calling Guardrail & Idempotency Blueprint
- Privilege Escalation & Replay Attack Defense Report
Included in Engagement
- Inspection of OpenAPI/Swagger specs for tool-calling clarity and schema constraints
- Idempotency token implementation review across mutating endpoints
- Rate-limiting and token exhaustion fallback analysis
Explicitly Excluded
To maintain strict technical objectivity and prevent conflicts of interest, our audit practice does not encompass:
- Full penetration testing of physical network hardware
- End-user UI frontend penetration testing
Engagement Timeline & Phases
Inspect OpenAPI schemas for parameter ambiguity and loose type coercion risks.
Review idempotency keys, authorization tokens, and sandbox execution constraints.
Supply hardened schema definitions, middleware snippets, and validation tests.
Prerequisites & Team Preparation
OpenAPI / Swagger specifications and API gateway route configuration samples.
Next Engagement Step
Send an API specification review inquiry.