AI Gateway · Security Guardrails · LLM Observability

Every prompt. Every agent. Every decision.
Under your control.

Delfee gives you full visibility, routing, and control over every LLM calls made by the Software Developers with any AI Coding tools and the Agents running in production.

Request Access See Capabilities
Models

Every model.
One platform.

Plug into the latest from every major provider. Switch models without changing code. Delfee routes, observes, and falls back across all of them through one unified API.

OpenAI
  • GPT-5.5Flagship
  • GPT-5.5 ProMax reasoning
  • GPT-5.4Frontier
  • GPT-5.4 miniFast
  • GPT-5.4 nanoLightweight
  • GPT-5.3 CodexCoding
  • GPT-4.1General
  • GPT-4oMultimodal
  • o3Reasoning
Anthropic Claude
  • Claude Opus 4.8Flagship
  • Claude Opus 4.7Advanced
  • Claude Opus 4.6Premium
  • Claude Sonnet 4.6Balanced
  • Claude Haiku 4.5Fast
Google Gemini
  • Gemini 3.1 ProFlagship
  • Gemini 3.5 FlashFrontier Flash
  • Gemini 3 FlashFast
  • Gemini 3.1 Flash-LiteCost-efficient
  • Gemini 2.5 ProHigh-capability
  • Gemini 2.5 FlashBalanced

Availability and pricing change frequently. New models are added as providers ship them.

Capabilities

One platform.
Complete control.

Everything you need to route, observe, secure, and improve your AI agents in production. No stitching together five different tools.

Multi LLM Routing
Connect every LLM provider through one API. Switch models, balance load, and set fallbacks, without changing your code. If one provider goes down, traffic moves automatically.
Observability
See every LLM interaction in real time. Latency, token usage, model responses, error rates, all in one place. Whether it's a developer testing locally or agents running in production, you'll always know what's happening.
Guardrails
Protect every LLM interaction with pre-call and post-call guardrails. Detect PII, secrets, and policy violations in incoming requests, then validate outputs, enforce response formats, and block unsafe responses before they reach users.
Analytics
Understand your AI costs down to the individual step. See which workflows spend the most tokens, which prompts perform best, and exactly where your budget is going, by team, by model, by use case.
Traceability
Every agent decision is logged as a complete, structured record, every step, every tool call, every input and output. A full picture of what your AI did, when it did it, and why.
Agent Replay
When an agent fails, go back to the exact step where it broke. Replay it with the exact state it had at that moment. Fix it and continue from there, without re-running the entire chain from the beginning.
Use Cases

Real problems.
Real solutions.

These are the exact situations where Delfee saves engineering teams hours of work and enterprises significant cost every week.

01
Route across multiple LLM providers without changing code
Your team uses OpenAI today. Tomorrow you want to test Gemini on a specific workflow. Next month your compliance team says sensitive data must stay on Azure. With Delfee, you change the routing rule, not the code. One integration. Every provider.
Multi LLM Routing
02
Debug a multi-step agent failure in minutes, not hours
Your agent runs 12 steps. It fails at step 9. Today you re-run everything from step 1, paying for 8 API calls you already made and waiting for all of them to complete again just to reach the broken step. With Delfee, you jump straight to step 9, see exactly what happened, fix it, and continue. The whole process takes minutes.
Agent Replay
03
Find out exactly why your AI bill spiked this month
CFO is asking why your AI costs doubled. Engineering has no clean answer. Delfee shows you cost by step, by workflow, by team, and by model. You can see that one specific agent loop is running 38 steps instead of the expected 8 and fix it before the next billing cycle.
Analytics
04
Catch problems before they enter & Stop risks before they leave
Detect PII, secrets, prompt injections, and policy violations before requests reach the model. Then validate responses, enforce formats, and block unsafe outputs before they reach users.
Guardrails
05
Give every team visibility into how AI is being used across the organization
One team optimized their prompts and cut token usage by 40%. Nobody else knows. Another team is rebuilding the same capability from scratch. Delfee makes every team's best practices visible to every other team and gives leadership a single view of AI usage, cost, and performance across the entire organization.
Analytics
06
Prove what your AI did for any audit, review, or investigation
Your AI made a decision on an important job. Someone needs to understand exactly what happened, what data it used, what steps it took, and what it decided at each point. Delfee's trace records give you a complete, structured history of every agent action that is ready to share with any internal or external reviewer.
Traceability
Compare

How Delfee compares
to Portkey and others.

We do everything the leading platforms do and we add the one capability none of them have built.

Capability
Delfee
LLM observability
(LangSmith, Helicone)
Generic AI gateways
(Portkey, LiteLLM)
Inline policy enforcement on every prompt and response
✓
✗
Routing / keys only
Response-side secret + PII scanning
✓
✗
✗
Drop-in for developer AI coding tools (Claude Code, Cursor, Codex, Gemini CLI)
✓
SDK-instrumented apps
SDK-instrumented apps
Per-team budgets, model + tool + time + directory allowlists
✓
Budgets only
Budgets + models
Credential-exfiltration guard (filesystem-path-aware)
✓
✗
✗
ECS-formatted audit log with SHA-256 body hashes (no raw bodies)
✓
Raw traces by default
Request log only
Fail-closed when policy engine is unreachable
✓
—
Configurable
Multi-provider routing (Anthropic, OpenAI, Google)
✓
✗
✓
On-prem / air-gapped deployable
✓
Self-hosted tier
✓
Agentic control plane (replay, policy-authoring, audit analyst)
✓
✗
✗
Get Access

Start in
minutes.

Tell us a bit about what you are building. We will reach out within one business day to set up access or a short call, whichever works better for you.

One API integration. Works with every LLM provider you already use.

Full observability, routing, and replay from day one.

On-premise deployment available for regulated teams.

Request Access or a Meeting

We respond within one business day. No spam, no sales sequences, just a direct conversation.