Docs/Sources/Fibonacci Generation for AI Agents

Fibonacci Generation for AI Agents

Generate Fibonacci sequence numbers

OperationalCredits 2 per callp50 326msMath/Calculations

Overview

The Fibonacci Generator API computes Fibonacci sequence values along with derived statistics — a sum, the trailing 5 consecutive-value ratios, and the most recent ratio as an approximation of the golden ratio. It accepts two mutually-exclusive modes: `count` for a fixed-length response, or `maxvalue` for every Fibonacci number up to a numeric ceiling. An optional `startfrom` parameter advances the generator before emission begins. All arithmetic uses standard JavaScript Number type on the server, so values above Number.MAX_SAFE_INTEGER (around the 79th Fibonacci number) cannot be represented exactly — the precision ceiling is end-to-end. The ratios array is always truncated to the last 5 entries regardless of sequence length, and each ratio is rounded to 6 decimal places.

Live Test Fibonacci Generation for AI Agents Source →

The tool

Once your client is connected to the VerveContext server, this appears in its tool list as FibonacciGenerationforAIAgents. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.

Tool call
{
  "name": "FibonacciGenerationforAIAgents",
  "arguments": {
    "count": "10"
  }
}

You do not name the tool yourself; the model picks it. Asking about 10 in the terms this source covers is enough for it to reach for FibonacciGenerationforAIAgents on its own — naming it explicitly also works, and is the way to force the call.

Connecting

One server URL covers every source in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.

{
  "mcpServers": {
    "vervecontext": {
      "url": "https://api.vervecontext.com/v1/mcp"
    }
  }
}

Per-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.

Arguments

These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.

ArgumentTypeDescription
countRequiredintegerNumber of Fibonacci numbers to generate
range 1–1000
startfromOptionalintegerStart from this position in the sequence
range 0–∞

What the model gets back

The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.

Result
{
  "status": "ok",
  "error": null,
  "data": {
    "sequence": [
      0,
      1,
      1,
      2,
      3,
      5,
      8,
      13,
      21,
      34
    ],
    "count": 10,
    "start_from": 0,
    "first_value": 0,
    "last_value": 34,
    "sum": 88,
    "ratios": [
      1.666667,
      1.6,
      1.625,
      1.615385,
      1.619048
    ],
    "golden_ratio_approximation": 1.619048
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

FieldTypeExampleDescription
sequencearray[0,1,1]Array of generated Fibonacci numbers
Length is determined server-side based on maxvalue, not by the caller. May be empty when startfrom advances past maxvalue.
countnumber10Total count of Fibonacci numbers generated
start_fromnumber0Starting position in the Fibonacci sequence
first_valuenumber0First value in the generated sequence
last_valuenumber34Last value in the generated sequence
sumnumber88Sum of all numbers in the sequence
ratiosarray[1.666667,1.6,1.625]Array of ratios between consecutive sequence values
Only the last 5 ratios are returned. Same skip rule for zero denominators. Each value rounded to 6 decimal places.
golden_ratio_approximationnumber1.619048Approximation of golden ratio from sequence ratios
Returns null when no ratios could be computed.

Why ground on it

A model can produce something that looks like this answer from its training data, and be confidently out of date or simply wrong. This source returns the current value in a shape you can check, which is the difference between an answer you can cite and one you have to hedge.

Point an evaluation at start_from: it is the field most worth pinning a claim to, and it is either present and current or absent — never plausibly invented.

Failure modes

Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.

StatusWhat it means
400 / 422The arguments did not validate. The message names the offending one.
401The OAuth session is invalid or expired — reconnect the server.
403Blocked by a key restriction or an IP allow-list. Never a bad identity.
404This source is not part of VerveContext. Check the catalog.
429Out of credits, or a brief rate limit. The message tells them apart.

A call costs 2 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.

Use cases

Math Education
Teach Fibonacci sequences and golden ratio concepts in educational applications and tools
Algorithm Testing
Generate test data for algorithms and performance testing using Fibonacci sequences
Visual Design
Apply Fibonacci ratios and golden ratio proportions in design and layout calculations
Data Analysis
Use Fibonacci numbers in technical analysis, trading algorithms, and pattern recognition

Other ways to use Fibonacci Generation for AI Agents

Set up Fibonacci Generation for AI Agents on VerveContext, or reach the same source a different way. Your VerveContext account and credits work on all of them — one key, one balance.

Call it as a REST APIOne HTTPS endpoint and an x-api-key header, with SDKs for Node, Python and .NET.APIVerve →Reference →
Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKit →Reference →
Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.VerveSheets →Reference →

More in Math/Calculations:

Was this page helpful?