Cero for AI agents.

Give any agent a live escalation path to verified human experts. One API key, one install, works with every MCP-compatible client.

Know when to defer

Agents hit edge cases. Cero lets them escalate instead of hallucinate.

Schema-validated answers

Experts return structured JSON your code can act on directly.

Multiple integration paths

Use MCP, Python, TypeScript, or raw REST depending on your stack.

Python SDK

Use the Python SDK in agent runtimes, orchestration backends, and Pydantic-heavy workflows. The package is publish-ready for PyPI under the name cerolabs; install from source until trusted publishing is wired.

pip install "git+https://github.com/os1123/cero-labs.git#subdirectory=sdk/python"

from cerolabs import Cero

cero = Cero(api_key="cero_...")
resolution = cero.escalate_and_wait(
    domain="healthcare.rcm",
    query="Should we appeal this denial?",
)

View Python SDK source

Agent-readable docs

Cero now exposes machine-readable surfaces for agents, answer engines, and documentation-aware crawlers.

/docs.md for concise API reference
/llms.txt for top-level agent discovery
/llms-full.txt for extended product + integration context
/docs for visual reference and examples

Install the MCP server

Works in every MCP-capable agent. Pick your client.

cerolabs-mcp on npm

claude_desktop_config.json

{
  "mcpServers": {
    "cerolabs": {
      "command": "npx",
      "args": ["-y", "cerolabs-mcp"],
      "env": { "CERO_API_KEY": "cero_..." }
    }
  }
}

Replace cero_... with your API key from app.cerolabs.ai/dashboard/api-keys.

Domain skills

Pre-packaged prompts + MCP config for specific domains. Drop into any agent.

View all on GitHub

Healthcare

Healthcare RCM Expert Assist

Ready

Denial appeals, CPT/ICD/HCPCS coding, modifier selection, prior authorization. Escalates ambiguous cases to verified RHIAs and clinical reviewers.

“claim denial”“appeal letter”“CPT code”“prior auth”“modifier 25”

healthcare.rcm

Install View SKILL.md

Sales

Sales Objection Handler

Ready

Drafts responses to pricing, competitor, and custom-terms objections. Escalates novel or high-stakes situations to experienced AEs.

“price too high”“competitor cheaper”“need discount”“custom terms”

sales.objection

Install View SKILL.md

Legal

Contract Clause Reviewer

Ready

Reviews standard clauses against company policy. Escalates non-standard terms, IP indemnity, and liability caps to attorneys.

“redline”“liability cap”“MSA review”“non-standard clause”

legal.contract

Install View SKILL.md

Trust & Safety

Content Moderation

Ready

Auto-handles clear policy violations. Escalates ambiguous, satirical, or cultural-context content to human moderators.

“user flag”“ambiguous speech”“cultural context”

content.moderation

Install View SKILL.md

Build your own domain skill

Have an expert network in a specific domain? Ship a skill that wraps Cero for it. The skill becomes a distribution channel — every install is a potential Cero customer.

Browse skill templates Partner with us

Start free. 10 credits included.

No card required until you exceed the free tier.

Get your API key