ci1t-sdk 0.2.1

Python SDK for CI-1T -- real-time stability monitoring for any numeric signal

CI-1T Python SDK v0.2.0

Version: 0.2.0 Last Updated: March 2026

Real-time stability monitoring for any numeric signal. One dependency. Three lines to start.

Install

pip install ci1t-sdk

Quick Start

import ci1t

client = ci1t.Client()  # reads CI1T_API_KEY env var
result = client.evaluate([0.8, 0.85, 0.79])

for ep in result.episodes:
    print(f"CI: {ep.ci:.3f}  AL: {ep.al}  Status: {ep.status}")

What It Does

CI-1T measures signal stability over time. You send scores (confidence values, probabilities, sensor readings, any 0-1 signal), and CI-1T tells you:

• Collapse Index (CI) -- how stable your signal is (0 = rock solid, 1 = collapsing)
• Authority Level (AL) -- how much to trust the source right now (0 = full trust, 4 = override it)
• Ghost Detection -- flags sources that look stable but are silently wrong

API Key

Get one at collapseindex.org/dashboard (API Keys panel).

Set it as an env var:

export CI1T_API_KEY=ci_your_key_here

Or pass it directly:

client = ci1t.Client(api_key="ci_your_key_here")

Configuration

Client

Parameter	Env var	Default	Description
api_key	CI1T_API_KEY	(required)	Your CI-1T API key
base_url	CI1T_API_URL	https://collapseindex.org/api	API base URL
timeout	--	30.0	Request timeout in seconds

client = ci1t.Client(
    api_key="ci_...",
    base_url="https://collapseindex.org/api",
    timeout=30.0,
)

Engine Config

Pass a config dict to evaluate() or fleet_evaluate() to override engine defaults. Only include the fields you want to change.

result = client.evaluate(
    [0.8, 0.85, 0.79, 0.92, 0.88, 0.91],
    config={
        "n": 3,                # scores per episode (default 3, min 2)
        "ghost_enabled": True,  # ghost detection (default True)
        "th1": 4000,           # AL 0/1 boundary (Q0.16)
        "th2": 10000,          # AL 1/2 boundary
        "th3": 20000,          # AL 2/3 boundary
        "th4": 30000,          # AL 3/4 boundary
    },
)

For fleet endpoints, wrap engine config inside engine_config:

result = client.fleet_evaluate(
    {"gpt-4o": [0.9, 0.88, 0.91], "claude": [0.87, 0.85, 0.86]},
    config={"engine_config": {"n": 3, "th1": 4000, "th4": 30000}},
)

All threshold values are Q0.16 integers (0-65535). Use ci1t.to_q16() to convert from floats.

Monitor

Parameter	Default	Description
name	(required)	Session name (for your reference)
nodes	(required)	List of node names
api_key	CI1T_API_KEY	API key (passed to underlying Client)
base_url	CI1T_API_URL	API base URL override
episode_size	3	Scores per episode per node before auto-flush
on_drift	None	Callback: (node_name, snapshot) -> None
on_ghost	None	Callback: (node_name, snapshot) -> None
on_round	None	Callback: (result: RoundResult) -> None

Usage

Evaluate Scores

Send prediction scores and get stability results. Scores are grouped into episodes of 3.

import ci1t

client = ci1t.Client()

# Accepts floats (0.0-1.0) -- auto-converted to Q0.16
result = client.evaluate([0.8, 0.85, 0.79, 0.92, 0.88, 0.91])

for ep in result.episodes:
    print(f"CI: {ep.ci:.3f}  Status: {ep.status}  AL: {ep.al} ({ep.al_label})")
    if ep.warn:
        print("  Warning: stability threshold crossed")
    if ep.ghost_confirmed:
        print("  Ghost confirmed!")

Fleet Monitoring (Stateless)

Compare multiple models in a single call. Ghost detection flags models with unnaturally low variance.

result = client.fleet_evaluate({
    "gpt-4o":  [0.9, 0.88, 0.91],
    "claude":  [0.87, 0.85, 0.86],
    "llama":   [0.50, 0.50, 0.50],  # suspiciously stable
})

print(f"Ghosts: {result.snapshot.ghost_confirmed_count}")
for node in result.snapshot.nodes:
    print(f"  CI: {node.ci:.3f}  Ghost: {node.ghost_confirmed}")

Fleet Sessions (Persistent)

For ongoing monitoring, use sessions. They track state across rounds.

# Create session
info = client.session_create(node_count=2, node_names=["gpt-4o", "claude"])

# Push rounds over time
r1 = client.session_round(info.session_id, {
    "gpt-4o": [0.9, 0.88, 0.91],
    "claude":  [0.87, 0.85, 0.86],
})
print(f"Round {r1.round}: {r1.snapshot.ghost_suspect_count} suspects")

# Check state anytime
state = client.session_state(info.session_id)

# Clean up
client.session_delete(info.session_id)

Monitor (Auto-Session)

Monitor handles session lifecycle automatically. Buffer scores and it flushes when ready.

import ci1t

with ci1t.Monitor("my-fleet", nodes=["gpt-4o", "claude"]) as mon:
    # Push one score at a time -- buffers until episode_size (3) is reached
    mon.push({"gpt-4o": 0.92, "claude": 0.87})
    mon.push({"gpt-4o": 0.89, "claude": 0.85})
    mon.push({"gpt-4o": 0.91, "claude": 0.86})
    # ^ Third push triggers a round to CI-1T

    state = mon.state()
    print(f"Session: {mon.session_id}")
# Session auto-deleted on exit

Callbacks

Get notified when stability events happen:

def on_drift(node_name, snapshot):
    print(f"DRIFT: {node_name} is no longer stable")

def on_ghost(node_name, snapshot):
    print(f"GHOST: {node_name} confirmed as ghost!")

monitor = ci1t.Monitor(
    "my-fleet",
    nodes=["gpt-4o", "claude"],
    on_drift=on_drift,
    on_ghost=on_ghost,
)

Watch Decorator

Auto-track any function that returns a prediction score:

import ci1t

@ci1t.watch("my-classifier")
def predict(text: str) -> float:
    return model.predict_proba(text)[1]

# Every call to predict() buffers the returned score.
# Every 3 calls, scores are pushed to CI-1T automatically.
score = predict("hello world")  # returns normally, tracked in background

Access the underlying monitor:

predict.monitor.state()   # check current stability
predict.monitor.close()   # stop tracking

Response Types

All responses are typed dataclasses with convenience properties:

Type	Key Properties
Episode	.ci, .ci_ema, .al, .status, .stable, .warn, .ghost_confirmed
EvaluateResult	.episodes, .compute_ns, .credits_remaining
FleetNode	.ci, .al, .status, .ghost_suspect, .ghost_confirmed
FleetSnapshot	.nodes, .has_ghosts, .ghost_confirmed_count
RoundResult	.snapshot, .round, .compute_ns

CI values are normalized floats (0.0-1.0). Raw Q0.16 integers available via .ci_raw.

Score Format

CI-1T uses Q0.16 fixed-point internally (integers 0-65535). The SDK accepts both:

• Floats (0.0-1.0) -- auto-converted. Use this.
• Integers (0-65535) -- passed through as-is.

Manual conversion: ci1t.to_q16(0.85) returns 55704.

Thresholds

CI Range	Status	Meaning
0.00 - 0.15	Stable	Predictions are consistent
0.15 - 0.45	Drifting	Starting to wander
0.45 - 0.70	Unstable	Significant instability
0.70 - 1.00	Collapsing	Signal is failing

Authority levels: AL0 (full trust) through AL4 (no authority/override).

Logging

The SDK logs every API call via Python's standard logging module under the ci1t logger. No output by default.

Enable it:

import logging

# See all CI-1T SDK logs
logging.getLogger("ci1t").setLevel(logging.DEBUG)
logging.basicConfig()

Log levels:

Level	What's logged
DEBUG	Request method, endpoint, payload size before each call
INFO	Results summary after each call (episode count, ghost count, latency, credits)
WARNING	Callback failures, flush errors on close

Requirements

• Python 3.10+
• httpx >= 0.25.0

Links

• https://pypi.org/project/ci1t-sdk/
• https://collapseindex.org

Changelog

v0.2.0 (2026-03)

• Added structured logging to Client (DEBUG: request details, INFO: results/timing)
• Monitor and watch() already log via the ci1t logger
• Updated wording: "any numeric signal" instead of "AI systems" throughout
• Added Configuration section: Client params, engine config, Monitor params

v0.1.0 (2025-07)

• Initial release
• Client with evaluate, fleet_evaluate, session management
• Monitor class with auto-buffering and callbacks
• watch() decorator for function-level tracking
• Typed response dataclasses with float/Q0.16 dual access
• Auto Q0.16 conversion (accept floats, convert internally)

License

MIT + Commons Clause. Free to use, modify, and integrate. Cannot be resold as a standalone product. See LICENSE.