Solutions · AI agents

Deterministic tools your agents can trust.

Language models guess at arithmetic. CalcFleet gives your agent 121 tested calculators as MCP tools: schema-validated inputs, structured errors, source-cited outputs — and, on pilot formulas, a signed certificate it can hand to whoever asks.

One config block, 121 tools.

The public MCP server is free and needs no API key. Add this to your agent’s MCP configuration — the MCP page has the copy button and the full tool catalog.

{
  "mcpServers": {
    "calcfleet": {
      "url": "https://calcfleet.com/api/mcp"
    }
  }
}

Why agents need deterministic math

Validated

every input checked against a strict Zod schema — bad arguments come back as structured errors, not hallucinated numbers.

Tested

every formula ships with hand-verifiable unit tests and cited sources; the agent quotes provenance, not vibes.

Reproducible

same inputs, same outputs, every run — the property that makes an agent's answer auditable at all.

Verifiable Calculation Certificates

Answers your agent can prove.

On the pilot formulas, pass certify: true in the MCP tool call and the response carries a signed DSSE/Ed25519 certificate alongside the result — evidence the agent can attach to its answer, checkable by anyone at /verify or fully offline.

How VCC works — and what it does not prove

Three surfaces, one engine

Give your agent numbers it can defend.