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Eversight and Signals APIs: Probabilistic Forecasts and Sourced Signals

Eversight and Signals APIs provide Numinous forecasting and evidence retrieval for prediction-market questions, including Polymarket and Kalshi. Forecast jobs, signal queries and Numinous-1 inference are distinct operations.

Open Eversighteversight.numinouslabs.io
Available on
Web · API

Screenshots and interface

What is Eversight and Signals APIs?

Eversight accepts a precise question as an asynchronous job. Poll until COMPLETED before reading result.prediction on a 0–1 scale. Signals accepts supported market URLs, slugs, condition IDs or questions and returns weighted material for research.

Use as_of to restrict historical retrieval, and distinguish published_at from capture time. Numinous-1 is a specialized forecasting model with an OpenAI-compatible endpoint and structured output, not a general assistant. Its documented context window is 16,384 tokens; inspect finish_reason and parsing if an answer is cut short.

Who it is for

  • Developers building research assistants.
  • Analysts comparing forecasts with market prices.
  • Teams needing attributable evidence.

Research coverage and methods

  • Forecast jobs

    Submit questions, poll states and read completed probabilities.

  • Market-aware signals

    Use URLs, slugs, condition IDs or free text.

  • Attribution

    Inspect material behind weighted signals.

  • Historical retrieval

    Use as_of to preserve an earlier information boundary.

  • News impact

    Read supported scored signals and their direction.

  • Related markets

    Explore causal relationships with associated evidence.

  • Numinous-1

    Use the specialized forecasting model through an OpenAI-compatible endpoint with structured-output support.

Research tasks

Compare a forecast

Read exact resolution terms, submit a job and wait for completion. Compare probability and quote while retaining evidence.

Build a research panel

Retrieve Signals, display linked material and separate publication and snapshot times.

Replay past research

Set as_of before retrieval so later articles stay outside the earlier decision window.

Pricing and total cost

Metered access uses supported API-key or x402 payment paths. Forecast jobs, signals and model inference are separate operations; check their rate schedule before batching.

Research inputs and access

  1. Choose Eversight for jobs or Signals for evidence.
  2. Configure the documented API-key or x402 route.
  3. Start with a precise question or supported identifier.
  4. Poll forecasts until COMPLETED before reading result.prediction.
  5. Store sources and the query time boundary.
  6. Handle truncation and structured parsing for model inference.

Read Eversight and Signals documentation

Useful links

What to check

  • Numinous-1 specializes in forecasting rather than general assistance.
  • Use either event_id or condition_id when mutually exclusive.
  • Publication and capture timestamps can differ.
  • The documented context window is 16,384 tokens; inspect finish_reason for truncated output.

A closer look

Ratings & reviews

Editorial rating
3.5/ 5
0 user reviews

Our take on Eversight and Signals APIs

Separate job and signal paths make integration clear. Asynchronous processing and metered operations need explicit budgets and careful reading of model output.

Assessment criteria
Task usefulness, documented scope, setup clarity, and access and cost transparency.
Assessment date
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Frequently asked questions about Eversight and Signals APIs

Where do I retrieve supporting articles?

Use Signals retrieval endpoints.

How is probability returned?

Completed jobs return result.prediction from 0 to 1.

Can I exclude later information?

Use documented as_of retrieval.

Do these APIs execute trades?

No. They supply research and probabilities; execution requires another integration.