Platform / Agentic Gateway
Surface 4 of 4 - AI Agents & MCP
Govern AI Agents at the Protocol Chokepoint
68% of organizations cannot distinguish agent actions from human actions (CSA/Aembit, March 2026), and only 18% are highly confident their IAM can manage agent identities at all (CSA/Strata, February 2026). AI agents act at machine speed, without waiting for anyone to review the action first. Whiteswan's Agentic Gateway sits at the MCP chokepoint (the point every agent tool call must pass through), issuing each agent its own cryptographic identity at spawn and evaluating every tool call against policy before it executes, across MCP and Agent-to-Agent (A2A) protocol traffic alike.
"Whiteswan gave us visibility into identities we didn't know were exposed."
Moosa M
Senior Information Security Manager, Exotel Techcom Pvt Ltd
The Agentic Governance Gap
Agents Don't Wait for a Security Review.
AI agents call tools, query databases, and take multi-step actions across enterprise systems without the pauses a human session naturally has. Traditional identity tooling was not built to evaluate a tool call that happens in milliseconds, chained to a dozen other tool calls, initiated by something that isn't a person and doesn't have a static credential to vault. 68% of organizations already cannot tell agent actions apart from human ones in their logs (CSA/Aembit, March 2026), which means when something goes wrong, the first question (“who authorized this, and what did it actually do”) often has no answer.
The Mechanism
Cryptographic Identity at Spawn. Evaluation at Every Call.
Eight principles govern every agent and every tool call that routes through the MCP layer.
Cryptographic identity at spawn
Each AI agent is issued its own per-session cryptographic key pair via SPIFFE/SPIRE the moment it spawns: verifiable, scoped to that session, and retired automatically when the session ends. No shared credentials between agents, no long-lived agent tokens sitting unused.
Chokepoint discovery
The gateway sees every agent and every tool call that routes through the MCP layer, not a sample, not a periodic scan. Discovery happens at the protocol chokepoint every agent action must pass through.
Approve-before-connect
Before an agent's tool call executes, the gateway evaluates it against policy (identity, scope, target sensitivity, and behavioral context) and approves, denies, or requires elevation.
Next-call block & in-flight drain
Once a policy violation is detected, Whiteswan blocks the agent’s next call and drains any in-flight session. (Mid-operation interruption of a call already executing is not yet a confirmed capability.)
Multi-hop delegation, governed at every step
When a human hands off to an agent, which hands off to another agent, which calls a tool, the gateway performs an OAuth 2.0 Token Exchange (RFC 8693) at every hop: the caller’s token is swapped for a fresh, short-lived, sender-constrained token scoped to that one call. No standing access, no long-lived keys inside agents.
The delegation path itself rides inside the token’s act (actor) claim, from that same RFC, nesting the full chain: human → agent → agent → tool. Every call carries its own on-behalf-of record and can prove who it’s acting for, all the way back to the human who started it, with no side lookup and no correlation guesswork.
Agent-to-Agent (A2A) governance, alongside MCP
The gateway evaluates A2A protocol traffic with the same approve-before-connect policy engine that governs MCP tool calls. Whether one agent is calling a tool or calling another agent, the decision happens at the same chokepoint, against the same policy, into the same audit trail.
Every response scanned before it leaves
Before a tool’s response reaches the agent or the next hop in the chain, the gateway inspects it for sensitive data: card numbers (Luhn-checked), IBANs (mod-97 validated), structural SSN patterns, JWTs, PEM keys, labelled secrets, and provider key signatures, confidence-scored rather than blind pattern matching. Exposure is caught on the way out, not discovered later in a log.
Every credential encrypted at rest
MCP credentials, headers, URL parameters, and config, are encrypted with AES-GCM at rest. Nothing sits in plaintext.
Swipe →
| Capability | Status | What It Delivers |
|---|---|---|
| SPIFFE/SPIRE identity at spawn | Verified | Per-session cryptographic identity, retired at session end |
| Chokepoint discovery | Verified | Full visibility into agents and tool calls at the MCP layer |
| Approve-before-connect | Verified | Policy evaluation before tool execution |
| Default-deny policy posture | Verified | No call executes unless explicitly authorized |
| Next-call block / in-flight drain | Verified | Stops further action once a violation is detected |
| Multi-hop delegation lineage | Verified | Human→agent→agent→tool actor chain (act claim), RFC 8693 Token Exchange per hop |
| Agent-to-Agent (A2A) governance | Verified | Policy evaluation across A2A traffic, alongside MCP |
| Egress data classification | Verified | Confidence-scored detection of sensitive data on every response |
| Credential encryption at rest | Verified | AES-GCM encryption for all MCP credentials |
| Unified audit trail | Verified | Same immutable trail as all four surfaces |
Technical Validation
OWASP Agentic Top 10 and the Five Questions.
Security architects evaluating agent governance need more than a product pitch: they need to see the mechanism mapped against a known risk framework, and the Agentic Gateway is mapped against the OWASP Agentic Top 10 in full. Compliance and audit teams need a different kind of proof: an answer to five specific questions, continuously, not just when asked. Every one of these is answerable directly from the Agentic Gateway’s audit trail. See how this connects to compliance workflows on Proof & Audit.
- 01Who authorized this agent to act?
- 02What was it permitted to do?
- 03Who approved that scope?
- 04What did the agent actually do?
- 05Can I revoke its access right now?
Governance Posture
See Your Posture, Not Just Your Logs.
The CISO Governance Posture dashboard turns gateway telemetry into a graded, explainable posture score: governed requests, sensitive events, policy gaps, blocked/denied actions, active agents, and risky principals, tracked over 24h, 7d, 30d, and 90d. Priority actions come with named owners and a one-click fix. Risk hotspots span humans, workload identities, agents, and MCP servers. It rolls up into auditor-ready evidence aligned to SOC 2 and SOX, the difference between having the data and being able to act on it in a board conversation.
Deployment
Governance That Doesn't Block the Build.
The Agentic Gateway is designed for teams already deploying agents, not teams debating whether to. It sits at the MCP chokepoint without requiring changes to how agents are built or which orchestration framework is in use. Discovery and governance apply to what’s already running, no rebuild required to get visibility.
Start Here
See Every Agent, Before You Commit to a Pilot
Scope a pilot to your MCP chokepoint: see every agent and every tool call before you commit to anything.