Other services

Payable other endpoints for agents, ranked by measured reliability.

api.onesource.io

api.onesource.io

79
score

Latest Ethereum block height - current chain tip via eth_blockNumber

USDC Base

api.onesource.io

api.onesource.io

77
score

Pending Ethereum block - mempool transactions not yet mined, via eth_getBlockByNumber("pending")

USDC Base

stableenrich.dev

stableenrich.dev

74
score

Google Solar API - Closest building roof insights including imageryDate

USDC BaseSolana

stable-enrich-git-stableenrich-solar-aerial-merit-systems.vercel.app

stable-enrich-git-stableenrich-solar-aerial-merit-systems.vercel.app

74
score

Google Solar API - Closest building roof insights including imageryDate

USDC BaseSolana

api.onesource.io

api.onesource.io

73
score

ERC20 allowance via allowance (eth_call) - how much a spender is approved to move from an owner's wallet

USDC Base

api.onesource.io

api.onesource.io

73
score

Look up the current owner of an ERC721 NFT by token_id via ownerOf (eth_call)

USDC Base

api.onesource.io

api.onesource.io

71
score

Simulate a read-only Ethereum contract call via eth_call - no transaction sent

USDC Base

stableenrich.dev

stableenrich.dev

71
score

Google Solar API - Closest building roof insights including imageryDate

USDC BaseSolana

acp-x402.virtuals.io

acp-x402.virtuals.io

70
score

acp job budget ($0.001)

USDC Base

google-trends.use.x402atlas.com

google-trends.use.x402atlas.com

70
score

Google Trends interest over time for a keyword — worldwide search popularity as a monthly series for keyword research, SEO & demand trend analysis.

USDC ArbitrumBasePolygonSolana

x402.ottoai.services

x402.ottoai.services

70
score

Hyperliquid perpetual trading history: fills, funding payments, and realized PnL per position.

USDC BasePolygon

x402.ottoai.services

x402.ottoai.services

70
score

Best-available stablecoin yield deposit options: the highest-APY lending venue per stablecoin (USDC / USDT / DAI …), read directly on-chain from Aave / Morpho / Compound across supported chains, with APY basis, liquidity profile, reward-completeness and TVL. Returns the best available options (not yet personalized to a specific wallet's holdings).

USDC BasePolygon

x402wordoftheday.vercel.app

x402wordoftheday.vercel.app

69
score

Get today's curated Word of the Day (definition + part of speech).

USDC Base

x402.ottoai.services

x402.ottoai.services

69
score

Domain age and registration intel from authoritative RDAP/WHOIS records: exact creation date, age in days and years, expiration date and days-until-expiry. The fast trust and risk signal agents use to vet a counterparty, link, or sender and to flag newly-registered or soon-to-expire domains. Returns structured JSON, keyless, pay-per-call. ccTLDs without RDAP return an uncharged 503.

USDC BasePolygonSolana

skills.onesource.io

skills.onesource.io

68
score

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy

USDC Base

api.onesource.io

api.onesource.io

68
score

Detect upgradeable proxy patterns (EIP-1967, UUPS, Transparent) via eth_getStorageAt - returns the implementation address behind a proxy

USDC Base

domain.hugen.tokyo

domain.hugen.tokyo

68
score

WHOIS registration lookup — registrar, creation/expiry/updated dates, domain age in days, name servers, DNSSEC, registrant country/org, EPP status codes. All TLDs (.com .net .org .io .dev .ai ccTLDs gTLDs). Per-field error resilience for TLD-specific parsing quirks. No WHOIS library setup or TLD-specific parsing needed. Accepts USDC payments on Base and Solana

USDC BaseSolana

domain.hugen.tokyo

domain.hugen.tokyo

68
score

DNS lookup across 3 independent resolvers in parallel — A, AAAA, MX, TXT, NS, CNAME, SOA records. SPF mechanism parsing, DMARC policy extraction, resolver inconsistency detection (DNS hijacking/BGP leak signal). One call replaces 3 separate resolver queries + result comparison. Accepts USDC payments on Base and Solana

USDC BaseSolana

vibesprings.net

vibesprings.net

68
score

Fiat currency converter and international pricing calculator. Perform instant conversions for any base amount between 30+ fiat currencies with official real-time ECB rates. Returns the exact converted sum, forward exchange rate, and the inverse exchange rate for clear cross-currency financial auditing.

USDC Base

api.vindexapi.dev

api.vindexapi.dev

68
score

Normalized NHTSA vPIC VIN decode (?vin=) — make/model/year/engine/body/… with fetch provenance, plus ORIGINAL factory new-vehicle warranty terms (basic/powertrain/corrosion/roadside/EV battery) keyed off make + model-year.

USDC BaseSolana

x402endpoint-utiwoa54hq-uc.a.run.app

x402endpoint-utiwoa54hq-uc.a.run.app

68
score

Get a prepaid card for use inside the United States

USDC BaseSolana

api.tickersfeed.net

api.tickersfeed.net

68
score

Upcoming US company earnings calendar — which companies report in a date window, with estimated EPS and revenue, as JSON. Default is the next 7 days; filter with ?from=YYYY-MM-DD&to=YYYY-MM-DD (window up to 30 days) or ?symbol=AAPL. Use for: earnings season monitoring, upcoming earnings this week, portfolio earnings alerts, event-driven trading calendar, pre-earnings positioning. $0.005 USDC per call.

USDC Base

api.tickersfeed.net

api.tickersfeed.net

68
score

Full US Treasury yield curve in one call — every tenor from 1-month to 30-year (1M, 3M, 6M, 1Y, 2Y, 3Y, 5Y, 7Y, 10Y, 20Y, 30Y) with current rates, key spreads, and recession inversion flags (10Y-2Y and 10Y-3M) as JSON. Powered by FRED (Federal Reserve). Use for: yield curve analysis, recession signal / curve inversion check, interest rate term structure, bond market monitoring, macro trading. $0.005 USDC per call.

USDC Base

macropulse.theaslangroupllc.com

macropulse.theaslangroupllc.com

67
score

Official US labor statistics by series id, deterministic. Answers "what is US CPI/unemployment/wage growth right now and vs a year ago". Up to 5 BLS series per call — by alias (cpi, cpi-core, unemployment, nonfarm-payrolls, wages, job-openings, eci, ppi) or any raw BLS series id. Returns latest value, same-period year-ago value, computed YoY change and percent, and the last 13 observations, straight from the BLS API. No LLM, public domain.

USDC algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73kArbitrumBaseBNB ChainOther EVMPolygonSolanaX Layerxrpl:0