All projects on Base

Key US macro indicators in one call, live from FRED: Fed funds rate, unemployment rate, CPI/core CPI/PCE inflation (YoY), real GDP growth (QoQ annualized), industrial production (YoY), retail sales (MoM), and consumer sentiment -- roughly 8 separate FRED series lookups collapsed into one request, with YoY/MoM math already done. Not ticker-specific. $0.01/call.

Is this stablecoin's $1 peg a hard anchor or a soft peg: does its price historically return to $1 (a redemption/arbitrage anchor) or sit below it (the market pricing risk), and is it dislocated right now. Flags SOFT_PEG, BROKEN_HISTORY, DISLOCATION

Answer questions about an image or describe what it shows (Llama 3.2 11B vision), fixed price $0.008 USDC. Use this when the input is an image; use /chat for text-only questions. POST JSON body {image (required, base64 or data:image/... URI, max 4 MB decoded, PNG/JPEG/GIF/WEBP), prompt (optional question, defaults to describing the image), max_tokens (optional 1-512, default 256)}. Returns {text}.

Daily JSON bundles for agents: BTC/ETH volatility regime, crypto news with top x402 sellers, Brazil business calendar, x402 agent economy, Base chain gas, US macro (CPI, unemployment, SOFR). This route serves the brazil-business-calendar bundle.

ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Coin Days Destroyed (CDD) spike classifier (state normal/elevated/spike/extreme + z-score vs 30-day baseline).

x402 catalogue change history - Returns the observed change history of the public x402 facilitator catalogue: the newest appearance, disappearance, price and terms changes per tracked resource, plus observation coverage and its caveats. Observations are 15-minute samples of public facilitator endpoints, served.

Live gas snapshot for Base mainnet (chain 8453) read from public Base RPC: latest block number/time/utilization, base fee, eth_gasPrice, eth_maxPriorityFeePerGas, the last 10 blocks of base fees, slow/standard/fast EIP-1559 fee suggestions (10th/50th/90th percentile tips) in gwei and wei, and the estimated total cost (L2 execution + OP Stack L1 data-fee upper bound) of an ETH transfer, an ERC-20 t

Gas sponsorship for one ERC-4337 user operation on Base (EntryPoint v0.8). Price = max($0.03, 1.3× the op's gas cap); this is the floor — send your user operation to get the exact quote. Bodies this URL accepts: {sender, calls[, redelegate:true]} (plain wallet, EIP-7702) | {userOperation} unsigned (any EntryPoint v0.8 smart account, bring your own operation) | JSON-RPC ERC-7677. Then POST the sign

Trust proof for an x402 seller: a signed attestation of your API's sample output, so buyer agents can check it before paying. Agoranome fetches a free sample from your endpoint's host, checks that your paid route on the same host answers with an x402 offer, and signs an attestation of what it saw and when: the sample's SHA-256 and body, and the offer's price, network and pay-to. Buyers check it at

Turn newline-delimited JSON exports into one JSON array for downstream processing. Parse supplied NDJSON or JSON Lines text with LF or CRLF endings. A final newline is required; empty-line skipping is optional. Rejects malformed JSON and duplicate keys. Bounded text input, not file reading or streaming.

Compounds supplied rent and expense growth assumptions, applies vacancy and collection loss, subtracts operating expenses and capital reserve, and divides net operating income by a caller-supplied property value. This is scenario arithmetic, not a valuation, market forecast, investment recommendation, tax calculation or guarantee of income.

Propagates a circular two-body orbit from altitude, inclination, RAAN, and initial orbital phase; rotates Earth at a fixed sidereal rate; and samples ground-station elevation. It ignores eccentricity, perturbations, epoch-dependent Greenwich angle, refraction, ellipsoid shape, terrain, and antenna masks, so it is a planning estimate rather than operational ephemeris.

Deterministic HS-code triage: ranked candidate headings with official heading text, GRI note and broker disclaimer. Not a customs ruling.

Historical OHLCV bars for a US stock. Required: ticker, interval (day|week|month|year), start_date (YYYY-MM-DD), end_date (YYYY-MM-DD).

Checks an x402 API origin the way x402scan, the CDP Bazaar and agents read it: fetches /openapi.json and /.well-known/x402, then calls each paid route without paying (up to 30) and decodes its 402. Reports routes that do not answer 402, missing or v1-only PAYMENT-REQUIRED headers, prices that differ from the OpenAPI document, resource URLs that differ from the route, wrong USDC EIP-712 domains, mi

Google Maps local business search by place name — find places by query and a free-text location (e.g. 'Austin, Texas'), no coordinates needed; returns Google's local-pack results as clean JSON.

Lookup registered caller name (CNAM identity), real-time line status (active vs. inactive), telecom carrier, and line type via Twilio. Provide ?phone=+14157012311.

Is this crypto wallet sanctioned? Instant OFAC SDN address screen for AI agents. Returns PASS/WARN/BLOCK. $0.001 Base USDC, keyless x402. Ed25519-attested. Upsell: full counterparty bundle $0.05.

ShieldAPI - x402 security preflight before agents trust an identity, sender, or email counterparty

Convert a public web page into concise, validated Schema.org JSON-LD for agents and automation. Supports 200+ entity types and can produce a useful page-level entity when existing markup is missing or incomplete. $0.01 USDC per successful request on Base. Call /check before paying. Payment authorization settles only after a successful response.

Audit a URL's HTTP security headers over a single body-free (HEAD) request. Grades Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy, flags information-leak headers (Server, X-Powered-By), and returns the parsed values plus advisory warnings. Clean JSON for security and pentest automation.

The answer, not the inputs. One call returns a stance for the coin — risk-on, risk-off, fragile or neutral — built from funding and open interest percentiles, sentiment, options implied volatility, the macro regime and what it costs to execute at your size. Every driver comes back with its number and its reading, plus the conditions that would invalidate the call. The rules are deterministic: the

Is this EU VAT number valid? Live VIES check against the European Commission's official VAT Information Exchange System — validate a European VAT id, verify a business tax id before invoicing, confirm B2B reverse-charge / zero-rating eligibility. Returns the registered trader name and address where the member state discloses them. Deterministic: no LLM. Distinguishes a genuinely invalid number fro

Is this CVE exploited? CVE lookup with KEV, ransomware use, EPSS and public exploits. $0.03 USDC on Base per call. Returns CVSS, affected products, advisories, CISA KEV and ransomware use, EPSS, public exploit repos, an AI-generated ATT&CK attack flow (flagged) and D3FEND countermeasures. Uncached CVEs return 404, not charged. Don't use this for CVEs not yet cached; they return 404 and are queued.

Converts area, sampling depth, bulk density and initial/final organic-carbon mass fractions into stock estimates and a gross CO2-equivalent difference. This is a simple stock-difference calculation; it does not establish additionality, permanence, leakage, sampling representativeness, credit eligibility or verified carbon removal.

Sorts caller-supplied non-negative balances and computes the standard finite-sample Gini coefficient plus top-one and top-ten-percent shares. Results cover only supplied accounts and do not identify common ownership, custodians, vesting, delegation, or off-chain claims.

Verify an SEC filing: given a filer's CIK and a claimed accession number, does that filing actually exist, and does its form type/filing date match what's claimed? Checked against SEC EDGAR's submissions API. Catches a fabricated or misattributed filing citation, including a real-looking accession number paired with an invented form type or date.

Is this token a scam? Token due diligence in ONE call ({"address":"0x...","symbol":"SYM"}): on-chain security verdict (honeypot + rug pull signals) fused with a web scam/rug/honeypot mention search, returned as one verdict with sources. For pre-swap due diligence by DeFi agents. Web results are third-party claims — verify before acting.

Strait of Hormuz shadow-fleet risk screen: the live-AIS vessel population (seen in the last 1.5h) ranked worst-first, each hull with its risk band, typed reasons (ofac_sdn, ais_dark, foc_tanker, imo_spoofed (tanker or cargo IMO fails check digit)), the sanctions bodies listing it (US OFAC, UK/FCDO) and a lastSeenAt timestamp. A transparent rules engine, not ML. Lists flagged hulls (high + moderate

x402engine — Meta's open-source model — great general-purpose performance at very low cost