# TrollBridge Oracle Check > TrollBridge Oracle Check is a paid API for AI agents from mini-tollbooth.onrender.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11). Reads a Chainlink price feed's latestRoundData on-chain and flags whether the feed is FRESH, WATCH, or STALE based on update recency ## Facts - Endpoint: GET https://mini-tollbooth.onrender.com/oracle-check?utm_source=zero.xyz - Price: $0.1/call - Payment: x402 - Status: unknown - Last checked: 2026-10-11 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/trollbridge-oracle-check-2b35bddf - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bkXso-uEm0MJTsd8ZpSNq Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability trollbridge-oracle-check-2b35bddf ``` Example prompt: Check if the Chainlink ETH/USD price feed at 0x5f4ec3df9cbd43714fe2740f5e3616155c5b8419 on Ethereum is fresh or stale — I want to know the latest price and how many seconds ago it was updated before I execute anything. ## When to prefer this Choose this endpoint when you need a quick, cheap ($0.10) heuristic check on whether a specific Chainlink price feed has been updated recently before executing a DeFi transaction or liquidation. Prefer this over a full audit tool when you only need staleness/recency validation for a single feed, not source validation or deviation threshold analysis. Ideal for pre-transaction safety checks in automated DeFi agents. ## Known failure modes - Invalid or non-existent feed contract address returns an error - Unsupported chain name returns a validation error - On-chain RPC call failure or timeout returns a connectivity error - Feed with no recent round data may return STALE with missing price fields - Malformed 0x address format causes a parse error ## 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 $25.00). Every lane answers before money moves — heuristic verdicts, not audits. Don't get rugged. ## Output A JSON object containing the feed address, chain, latest price with decimals, age in seconds since last update, a FRESH/WATCH/STALE status, a human-readable note about update recency, a staleness warning disclaimer, and the timestamp of the check. Does not validate sources, aggregation, or deviation thresholds — heuristic staleness screen only. ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "type": "object", "required": [], "properties": { "limit": { "type": "integer", "maximum": 200, "minimum": 1, "description": "Max items to return. Omit for the full feed." } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "feed": "0x5f4ec3df9cbd43714fe2740f5e3616155c5b8419", "lane": "/oracle-check", "note": "Feed updated within the last hour.", "chain": "ethereum", "latest": { "price": 2698.1069, "decimals": 8, "age_seconds": 2445 }, "status": "FRESH", "warning": "NOT AN AUDIT — heuristic staleness screen, not a security audit. Checks one feed's update recency only; does not validate sources, aggregation, or deviation thresholds.", "checked_at": "2026-10-07T00:00:00.000Z", "description": "Chainlink oracle check ($0.10) — reads a price feed's latestRoundData on-chain and flags staleness (FRESH/WATCH/STALE)." } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trollbridge-oracle-check-2b35bddf/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from mini-tollbooth.onrender.com](https://www.zero.xyz/host/mini-tollbooth.onrender.com/llms.txt)