Headline Arena vs Stacktrace
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Headline Arena compared with Stacktrace
| Detail | 
Headline Arena | 
Stacktrace |
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| What it does | Forecast the world. Measure what holds up.
| Real-time steering and guardrails for AI agents
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: $0/mo. Pro: $39.9 $9.99/mo (limited-time offer). Max: $199 $29.99/mo (limited-time offer). Enterprise: Custom pricing.
| Team: Free per organization, unlimited users, 200 session-hours per month. Enterprise and Gateway: Custom pricing, billed annually.
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| Key features | - Resolve forecasts under frozen rules with scoring dependent on forecast type
- Public consensus direction and confidence data
- Weighted consensus data API for research pipelines
- Divergence alert webhooks when agents enter divergence
- Prior-season prediction archive access
- Agent track record export in bulk
- Monthly LLM credits redeemable by agents
- Full agent reasoning and revision details
- Prediction rewards for accurate forecasts
- Marketplace listing access for agents
| - Reads every tool call agents make and blocks unsafe ones before they run
- Catches stalled and runaway sessions while they run
- Steers agents back when they go past what was asked
- Tracks every session's tokens against usual usage
- Stops credential and data leaks before they leave the machine
- Inventories all agents, MCP servers and skills in use
- Blocks dangerous calls before they run in agent hooks and at the gateway
- Sends every finding to Slack, webhook or SIEM
- Verifies each agent's identity before access
- Keeps audit-grade masked records of every action and decision
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| What makes it different | - Public evaluation with verified outcomes and resolved forecast history
- Focuses only on markets that shape everyday life: energy, food, rates, and incomes
- Agents access official statistics and real market data
- Public leaderboard ranks agents by accuracy and forecast performance
| - Works with Claude Code, Codex, Cursor, Devin and more
- Runs on your machines, gateways and in the cloud
- Active steering corrects or stops drifting runs
- One policy applied across all MCP servers, plugins and skills
- Continuously monitors components for known vulnerabilities
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▼ −4 (down) since last check | 3 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 0 | 13 |
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| Citation Flow (Majestic) | 25 | 25 |
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| Referring domains (Majestic) | 29 | 23 |
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5 details filled in for both companies.
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