The FHFA House Price Index for a geography: the current index level plus year over year, quarter over quarter and five year growth, with momentum flags and a short history. State and metro CBSA levels are covered directly; county and ZIP resolve to the state level index. Public domain, US only.

U.S. excess & surplus (E&S / surplus lines) insurance premium and policy-count time series by state, coverage line, and month, quarter, or year. Aggregated from state stamping office publications; every response cites its source report. Florida live, more states coming. $0.10 per query. Free discovery endpoints: /v1/coverage and /v1/lines. Docs: https://api.querylines.com/openapi.json

Top insurers by U.S. excess & surplus (E&S / surplus lines) insurance premium for a state and period (month or year), ranked by premium. Aggregated from state stamping office publications with source attribution. $0.10 per query. Docs: https://api.querylines.com/openapi.json

Pay once to receive a short-lived WebSocket ticket for the live Bitcoin mempool stream.

$0.001/page. Split a PDF by page ranges or burst it into single pages. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.

Create a price-locked USDC invoice for one or more gift cards, eSIMs, or mobile top-ups.

Returns ranked Google web search results for a query, with title, URL, snippet, domain, and optional recency filter. Uses Decodo Google Search. For fetched page text or cited synthesis, use scrape-to-json or answer-web. Use it as a web search API, SERP search, or agent search endpoint.

FullEnrich Company Search — filter by domain, name, LinkedIn URL/ID, industry, type, HQ, headcount, founding year, keywords, specialties, and company IDs. Requires at least one filter; offset alone → 400. Paginate via search_after. Returns up to 10 results. $0.14 if results; free if empty. Legal names not brands (Anysphere≠Cursor).

Signed merchant track-record receipt for a Solana receive wallet (pay_to). 0.05 USDC; attestation_kind=merchant_track_record (NOT a payer trust score). Free teaser: GET /v1/intel/merchant_card/{wallet}.

Evidence-backed domain trust assessment using RDAP registration data, DNS/security reputation search, and a structured risk analysis.

Resolve a US-listed company ticker through the SEC EDGAR company ticker dataset. Returns CIK, ticker, and registrant name.

Agent-native encrypted key-value store, paid per request over x402 — no signup, no API key. The payer's wallet (or an ak_ account key) is the namespace; values are client-side encrypted. Write $0.005, read $0.003; prepay $1 = 10,000 credits at 1/10 the per-op price (POST /v1/credits/deposit). SDK: npm i @agentkv/client. Docs: https://agentx402.ai

The Crypto Fear & Greed index: the current market-sentiment score (0–100) and its classification (Extreme Fear → Extreme Greed), plus optional daily history. A widely-watched contrarian signal for crypto market timing. Sourced from Alternative.me.

Stage a media file on the fal CDN before a fal generation. Returns { upload_url, file_url }: PUT the raw file bytes to upload_url (with the matching Content-Type header), then pass file_url as the image_url/video_url/audio_url param of the generation. Upload originals UNCOMPRESSED — never downscale or re-encode; high-res inputs cost nothing extra and compression degrades outputs.

Compare U.S. excess & surplus (E&S / surplus lines) insurance premium and policy-count series across multiple states side by side, on normalized cross-state coverage categories. Aggregated from state stamping office publications with source attribution. $0.50 per query. Docs: https://api.querylines.com/openapi.json

Legitimacy check for B20 tokens on Base. Verifies whether an address is a factory-native B20, detects copycats and known-asset imposters (homoglyph-aware), reports live issuer powers (mint, burn, pause, freeze, seize, admin) and issuer activity, and returns a danger/caution/ok verdict as an EIP-712-signed attestation an agent can independently verify.

Real-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and a human-readable condition.

Pre-payment guard for x402 agents: free POST /v1/intel/preflight before spending, paid signed V6 trust receipt after. Evaluate any counterparty BEFORE paying — 0.05 USDC buys the proof (Solana mainnet). POST /v1/intel/preflight is free, no auth.

Cheap 0.001 USDC quick reputation check for a Solana wallet: tier + score only (no signed V6 receipt). Free teaser: POST /v1/intel/preflight. Full receipt: GET /v1/intel/trust/{pubkey} (0.05 USDC).