Timeweaver Mcp

io.github.FixtureForgePublished by GitHub account FixtureForgev0.1.1Updated Oct 24, 2026

Synthetic time-series test data with trend, seasonality, noise, and anomalies, for any MCP client.

VerifiedSTDIODesktop onlyDeveloper ToolsData & Analytics

Overview

AI-generated overview

Generates synthetic time-series test data with trend, seasonality, noise and anomalies, returned as JSON, CSV or SQL for any MCP client.

What you can do
  • Generate time-series data from built-in presets or explicit components such as length, frequency, baseline, trend, seasonality, noise, anomalies and correlated series
  • List the built-in presets (e-commerce sales, server CPU, IoT temperature, website traffic, stock price, API latency)
  • Emit the generated series as JSON, CSV or SQL statements
When to use it
Useful when you need realistic, statistically coherent sample series for dashboards, charts, monitoring and alerting tests, forecasting models or anomaly detection, without hand-writing fake data.
Requirements
Runs locally over stdio, started with npx, so Node.js and network access to fetch the npm package are needed. No accounts or credentials are required for the free tier; a license key in the TIMEWEAVER_LICENSE environment variable unlocks Pro features.
Before you install
Pro features (longer series, multiple correlated series, exponential/logistic trend, multiple cycles, AR(1) noise, anomalies, CSV/SQL output, deterministic seed) require a paid license at $19/month or $39 one-time. The license key is passed as the TIMEWEAVER_LICENSE environment variable, so keep it out of shared configs. Generated data is synthetic and should not be treated as real measurements.

Installation

In SourceWeft

  1. Open Timeweaver Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

TimeWeaver MCP

Synthetic time-series test data, on demand, inside your AI client. Generate realistic series with configurable trend, seasonality, noise, anomalies, and multiple correlated streams — perfect for testing dashboards, charts, monitoring/alerting, forecasting models, and anomaly detection. Output as JSON, CSV, or SQL.

Part of the fixturelab test-data tools. Its sibling SeedWeaver does relational/database test data.

Why

LLMs are unreliable at hand-generating coherent time-series — trends drift, "seasonality" doesn't actually repeat, and correlations between series are fake. TimeWeaver generates data with verifiable statistical properties: a linear trend really has the slope you asked for, a seasonal cycle really repeats at its period, two correlated series really hit the target correlation, and AR(1) noise really has the autocorrelation you set.

Install

npx -y timeweaver-mcp

Add to your MCP client config (e.g. Claude Desktop claude_desktop_config.json):

json
{  "mcpServers": {    "timeweaver": {      "command": "npx",      "args": ["-y", "timeweaver-mcp"]    }  }}

To unlock Pro, add your license key:

json
{  "mcpServers": {    "timeweaver": {      "command": "npx",      "args": ["-y", "timeweaver-mcp"],      "env": { "TIMEWEAVER_LICENSE": "YOUR-KEY-HERE" }    }  }}

Tools

  • generate_timeseries — generate data from a preset and/or explicit components (length, frequency, baseline, trend, seasonality, noise, anomalies, correlated series). Output JSON / CSV / SQL.
  • list_presets — list built-in presets: ecommerce_sales, server_cpu, iot_temperature, website_traffic, stock_price, api_latency_ms.

Examples

"Generate 90 days of daily e-commerce sales using the ecommerce_sales preset."

"Generate 3 correlated server CPU series over 500 minutes with correlation 0.8, as CSV."

"Make an hourly temperature series with a daily cycle and a level shift on day 5, as SQL into a table called readings."

Free vs Pro

FreePro
Points per series200up to 100,000
Series1up to many, correlated
Trendnone / linear+ exponential, logistic
Seasonality1 cyclemultiple cycles
Noisegaussian+ AR(1) autocorrelated
Anomalies–spikes, level shifts, trend changes, dropouts
OutputJSON+ CSV, SQL
Deterministic seed–✓

Pro: $19/mo or $39 one-time → https://fixtureforge.gumroad.com/l/timeweaver

License

MIT (the server code). Pro features require a valid license key.

Source: README.md at commit 74e3d60

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.1LatestSep 16, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.