api.macaroonnetwork.com
Current block number and gas price for Base and Polygon mainnet, fetched live via RPC on every call. Unlike this catalogue's corpus-search listings, this makes a real outbound network call on purchase -- freshness is the product, not a stored snapshot.
$0.001000 USDC
api.insumermodel.com
Signed wallet trust fact profile (ECDSA plus a post-quantum ML-DSA-65 companion): presence checks across stablecoins, governance, NFTs, staking, institutional stablecoins, tokenized treasuries, stablecoin deposits, wrapped bitcoin, names and account code, 155 base checks on 27 chains, up to 176 checks on 29 chains with the optional wallets. No score, no opinion: signed evidence organized by dimension. Pay in USDC on Base, Polygon, Arbitrum, Arc, or Solana.
$0.15 USDC
api.prereason.com
Macro data: the Fed balance sheet, M2 money supply, Treasury yields, VIX and net liquidity, each with its trend. Macroeconomic indicators for AI agents. A paid call serves today or any ?date= on record.
$0.02 USDC
tick.twzrd.xyz
DIGITAL.ATOM.1 fixture JSON. $0.005 USDC Solana exact.
0.01 tokens
search.gedx402.com
Tavily web search — POST { query, max_results?: 5 } on search.gedx402.com; ranked results via Tavily API. $0.042 USDC per request. AM-winning shape at /v1/search. Agent search: tavily, web search, serp, search lite, semantic search.
$0.04 USDC
rest.coincap.io
Full asset data for one or more slugs (agent-optimized).
$0.002000 USDC
api.webbersites.com
ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https://api.webbersites.com and pay per call. Caps: 16,000 input chars, 1,024 output tokens (max_tokens clamped), text-only, no streaming.
$0.01 USDC
api.kadec0.xyz
DeFi TVL for protocols and chains. Returns total value locked per DeFi protocol or per chain via DefiLlama, with category, supported chains, and TVL change over time, filterable by category or chain. For DeFi protocol screening, chain-level TVL comparison, and tracking where liquidity is moving. Keyless.
$0.02 USDC
svm402.com
Is a Solana token I already hold still safe? Post-buy rug-pull watch for a token I hold: pass your entry-time liquidity as the baseline and the service re-runs the scam screen — mint/freeze authority reactivated, honeypot, liquidity collapse versus baseline, risk transformation — returning CLEAN / CHEAT_RISK / DEGRADED. — $0.01 USDC
0.01 tokens
fractalai.net.co
Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native.
$0.02 USDC
sanctions.nsgoods.org
Use this before an AI agent pays a wallet address, to check that the payee is not sanctioned. Screens one address (EVM, Solana, Bitcoin, TRON and similar) against OFAC, UN, EU and UK lists, each reported separately with its own list date inside a signed verdict. Pay only if verdict is clean and any_list_match is false. $0.01 in USDC on Base or Solana. An invalid address returns 400, not charged. Free preview: GET /screen-multi/preview
0.01 tokens
api.nansen.ai
Get "Token God Mode" (TGM) flow intelligence data
$0.01 USDC
mcp.blocksize.info
Real-time shared bid/ask snapshot data, including crypto pairs and supported equity tickers, from Blocksize Capital.
0.00 tokens
energy.halowerk.com
Battery, EV, and trading agents buy this endpoint to receive calibrated 2h/4h/6h negative-price probabilities, reviewed threshold profiles and an executable response policy.
$0.001000 USDC
api.kadec0.xyz
Scrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.
$0.03 USDC
stationfx.com
Federal funds effective rate minus CPI YoY inflation. Measures whether monetary policy is restrictive or accommodative in real terms. Negative real rates = loose policy (historically supports risk assets). Positive real rates = restrictive policy (historically pressures valuations). Pre-computed daily.
$0.008000 USDC
api.losbeto.xyz
LLM inference as a pay-per-call commodity — ask anything (?q=...) and get the first live answer from a multi-provider failover chain (Groq, Gemini, paid tiers when configured). One flat price, any subject, no API keys...
$0.005000 USDC
palmyr.ai
List registered X accounts your wallet owns or has shared access to.
0.00 tokens
api.kadec0.xyz
Google Trends related queries for a keyword. Returns the searches people run alongside a keyword in a given country: top queries scored 0-100 relative to each other, and rising queries with their percentage growth. Google Trends keyword expansion for SEO keyword research, content planning, and spotting breakout search demand early.
$0.03 USDC