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TrollBridge Fear & Greed Index
x402
TrollBridge Fear & Greed Index is a paid API for AI agents from mini-tollbooth.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).
Returns the current Crypto Fear & Greed Index value and classification plus a 7-day history, sourced from Alternative.me.
Price / call$0.02
Success—
StatusUnknown
How this service works
The insurance booth for AI agents, with Mini's Agent Supply Store on the side of the road. One hundred checkpoints: pre-transaction safety lanes (honeypot, approval-risk, rug-score, receipt-check, tx-dryrun, permit-scan, airdrop-verdict, deployer-history, wallet-watch, secret-scan at $0.02 USDC per call; the protection tier — /contract-check, /approval-screen, /tx-plain-english, /honeypot-check, /tx-simulate, /redteam, /skill-scan, /verdict, /egress-audit, /tool-gate, /airlock, /repo-scan, /prove, /task-scope — at $0.10; the one-call /shield don't-get-rugged screen at $0.25; the full /preflight bundle at $0.05), bounty intel (bounties, fresh, verdicts, deadlines, sweepstakes, opportunities) at $0.02 USDC per call, trader intel (/prices and /quant at $0.02; /enrich and /token-check at $0.05; /contract-check and /honeypot-check at $0.10; /sec-facts at $0.05), market intel (/markets and /search at $0.05; /grants at $0.02), DeFi intel (/yields and /new-pairs at $0.05; /gas and /defi at $0.02), AI intel (/models at $0.02), agent-ops intel (/prompt-cost, /model-picks, /rpc-speed, /terms-tldr, /scrape, /gigs, /retry-verify, /idempotency, /verify-independent at $0.02; /site-watch, /wallet-check, /code-run, /regulatory-pack, /sage, /cron-watch, /caveat-check, /tripwire, /escrow, /trust, /bridge-fees, /dao-votes, /dev-activity, /dex-arb, /dydx-perps, /funding-rates, /gas-predict, /hack-tracker, /long-short-ratio, /lp-yields, /mev-scan, /open-interest, /perp-basis, /polymarket-odds, /rwa-watch, /sentiment, /stablecoin-flows, /tokenomics, /top-movers, /whale-watch, and /yield-stable at $0.05; /approval-screen, /tx-plain-english, /tx-simulate, and /task-scope at $0.10; /scam-scan deep scan at $5.00 or 30-day subscription at $30.00), supply store (/road-pack combo meal at $0.05; curated datasets, the /audit-prep pre-audit review, and the /prove-state symbolic-execution run at $1.00; the /audit AI-agent audit at $25.00). Every lane answers before money moves — heuristic verdicts, not audits. Don't get rugged.
Output
Returns a JSON object with the current date, Fear & Greed index value (0–100), sentiment classification (e.g. 'Greed', 'Extreme Fear'), a 7-day history array of daily values and classifications, the timestamp of the check, and a warning note that the index is a sentiment gauge and not a directional trading signal.
Example use cases
Pre-trade sentiment check for DeFi agent
“Before I make any big crypto moves, tell me what the Fear & Greed Index is showing today and whether it's been consistently greedy or swinging around this past week.”
Weekly crypto market mood report
“Give me a summary of how crypto market sentiment has looked over the last 7 days using the Fear & Greed Index — I want to know if we've been trending toward fear or greed.”
Automated sentiment alert trigger
“Check the current Fear & Greed Index for crypto and let me know if we're in extreme greed or extreme fear territory right now — I want to decide whether to stay cautious.”
Technical details
Endpoint
GEThttps://mini-tollbooth.onrender.com/fear-greed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, low-cost ($0.02 USDC) snapshot of overall crypto market sentiment including a 7-day trend, without needing price or on-chain data. Ideal for pre-trade context checks, sentiment monitoring workflows, or any agent that needs to assess whether the market is in fear or greed before taking action. Prefer over raw price feeds when qualitative sentiment classification is the primary need.
Side effects
- Upstream Alternative.me API unavailable, resulting in stale or missing data
- Payment of $0.02 USDC not provided or rejected via x402 protocol, blocking the response
- Network timeout from the Render-hosted service under load
- Response may lag if the upstream index has not yet updated for the current day
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"lane": "/fear-greed",
"current": {
"date": "2026-10-07",
"value": 71,
"classification": "Greed"
},
"warning": "Sentiment gauge, not a trading signal — extreme greed/fear alone never proves direction.",
"checked_at": "2026-10-07T00:00:00.000Z",
"history_7d": [
{
"date": "2026-10-07",
"value": 71,
"classification": "Greed"
}
],
"description": "Crypto Fear & Greed index ($0.02) — current index value plus 7-day history from Alternative.me."
}
}Tags
x402
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