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Showing the 22,469 endpoints that answered our last unpaid knock, most recently knocked first. The catalogue holds 83,539 listings in all: 21,676 charge, 852 answered without asking, 9,808 did not reach a working endpoint, and 51,203 we have never knocked on. Type something above to search all of them.
Cyre Circuit Breaker — seal operator heartbeat interval + spend rails for an autonomous agent. Heartbeat via /api/circuit/heartbeat; enforce before pay via /api/circuit/check. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Bank of Japan Total Assets (USD) ($0.05): Bank of Japan total assets converted to USD.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Guardian Passport Delta — re-attest a wallet against a prior Passport and return score drift, risk-level flips, and signal changes. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md
Unpriced in the listing, which is not the same as free. it demanded payment when we knocked, on 2026-10-24.
Bank of England Total Assets (USD) ($0.05): Bank of England total assets converted to USD.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Bank of Korea Total Assets (USD) ($0.05): Bank of Korea total assets converted to USD.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
7-day weather forecast for London Ontario: daily highs and lows, precipitation probability and totals, wind and conditions, plus hourly detail for today, from Open-Meteo. Trip planning and scheduling for London Ontario without an API key. $0.01 per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
7-day weather forecast for Monterrey: daily highs and lows, precipitation probability and totals, wind and conditions, plus hourly detail for today, from Open-Meteo. Trip planning and scheduling for Monterrey without an API key. $0.01 per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Sugar reference price (currently follows futures; no CIV farmgate floor).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Assemble an ISO 8601 duration string from individual components (years, months, weeks, days, hours, minutes, seconds) and an optional sign. All components must be non-negative and at least one must be non-zero.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Convert a Julian Day Number back to a proleptic-Gregorian date, with the ISO weekday (1=Monday..7=Sunday) and its name.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Keyword search over the x402 Bazaar discovery index: the ~8,000 most-used of the daily sweep, whose size is in the free corpus block. Find services by text query with price and usage filters, ranked by unique payers. The Bazaar's own discovery endpoint has no search; this is it. Every match is reachable: count is the full hit count, and offset/limit page all of them. Priced per row: $0.005 for the default 20, $0.0002 each after, $0.021 for a full 100 rows, quoted in the 402 before you pay.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Discover crypto projects and their fundraising history.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
DeFi protocol fee and revenue data — daily/weekly totals, revenue breakdowns, and protocol earnings. Essential for protocol valuation. Accepts USDC payments on Base and Solana
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Reverse-resolve an Ethereum address to its primary ENS name (the reverse record set by the owner), read live on Ethereum mainnet. Returns `found:false` when the address has no primary name set. Live reads with automatic endpoint fallback.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Check if a wallet is flagged as malicious — query multiple security databases for known scammers, exploit attackers, rug pull deployers, and sanctioned entities. Returns classification tag and risk level. No API keys needed. Accepts USDC payments on Base and Solana
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Top yield pools across all protocols and chains - sorted by APY
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Historical DeFi TVL across all chains from DefiLlama — aggregate time series (excludes liquid staking and double counting).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Bullish/bearish sentiment score per token
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Explain code snippet in plain English (paste code in message).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Structured code review: correctness, security, edge cases, reuse. Returns numbered findings.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Implied volatility (IV) of crypto options per expiry from Deribit, Bybit and OKX: ATM IV, 25-delta skew, put/call open interest ratio, max pain and Deribit's DVOL index; with an expiry, the options chain per strike with the greeks as each venue publishes them. Volatility surface inputs for BTC and ETH options. Data only. Bad input is free; nothing is charged when no venue answers.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Refactor code while preserving behavior. Returns diff + rationale.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Order book depth of one coin's perpetual on Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit and OKX: best bid/ask, spread in bps, market depth in USD within 0.1/0.5/1/2% of mid, bid/ask imbalance, estimated slippage for your order size and the largest resting orders (walls). L2 orderbook liquidity for BTC, ETH, SOL and more. Data only. Bad input is free; under 2 venues not charged.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Email-authentication posture for a domain: SPF record and policy, DMARC policy and alignment, DKIM selector presence. Use it to judge whether mail claiming to be from a counterparty can be trusted. Live DNS.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Drug mechanism-of-action + molecular target landscape for any disease — targets in active trials, approved agents by MOA, crowded vs novel mechanisms and first-in-class openings, with key publications. Worldwide. For drug-discovery and VC agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
MIME type for .bin files: application/octet-stream. Returns the Content-Type to send, the category, whether browsers render it inline, whether it is compressible, common magic bytes and related extensions. Set headers and validate uploads for .bin correctly. $0.01 per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
npm package puppeteer: latest version, description, license, homepage and repository, weekly downloads, dependency count, publish dates and dist-tags from the npm registry. Pin, audit or compare puppeteer in one call, no token. $0.01 per call.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Clinical trial pipeline scan for any disease — all active Phase 2/3 trials with trial counts, sponsor landscape, geographic distribution, mechanism breakdown and pipeline density, across 400,000+ trials worldwide. For biotech-investing and pharma agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Screen a Base address before sending funds or approving it: GoPlus malicious-address flags (sanctions, phishing, stealing, mixer, honeypot-related...) plus on-chain facts (EOA vs contract, tx count, balance). Sourced flags, deterministic score.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Base token risk check: honeypot / tax / mint / proxy / liquidity / holder-concentration / LP-lock flags from GoPlus + honeypot.is + DexScreener, deterministic score, every flag sourced.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Requires an unauthenticated caller-owned baseline; returns real current NS/MX records, added/removed sets and tri-state target-provider transition. Current DNS comes from one bounded native recursive-resolver query; existing Dossier provides context. Resolver caching may apply; no account ownership or global migration-completion claim. Existing provider patterns are reused without new invented attribution. At most50records,domain253chars,9sbudget; DNSsubquery2s/oneattempt. Unknown provider remai
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Requires an unauthenticated caller-owned baseline; returns real current NS/MX records, added/removed sets and tri-state target-provider transition. Current DNS comes from one bounded native recursive-resolver query; existing Dossier provides context. Resolver caching may apply; no account ownership or global migration-completion claim. Existing provider patterns are reused without new invented attribution. At most50records,domain253chars,9sbudget; DNSsubquery2s/oneattempt. Unknown provider remai
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
SSL/TLS certificate analysis — issuer, SAN list, serial number, validity period, days until expiry. TLS 1.0/1.1/1.2/1.3 individual probing. Automated A-F security grade. No SSL library setup or certificate parsing needed. Accepts USDC payments on Base and Solana
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Demand waitlist read ($0.05): recent full intents from OUR accumulated board. Body { limit?: 1..100 }. Free thin count at GET /intents. Scarce = demand intel only this origin hosts.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
RDAP domain registration lookup: structured registrar, creation/updated/expiry dates, status, nameservers and a computed domain age. A parsed, snake_case JSON alternative to raw WHOIS text.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Requires an unauthenticated caller-owned baseline; returns real current NS/MX records, added/removed sets and tri-state target-provider transition. Current DNS comes from one bounded native recursive-resolver query; existing Dossier provides context. Resolver caching may apply; no account ownership or global migration-completion claim. Existing provider patterns are reused without new invented attribution. At most50records,domain253chars,9sbudget; DNSsubquery2s/oneattempt. Unknown provider remai
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Supporting dataset: Agent Economy Briefing Pack compiled from Signal archive. Secondary to signal_latest/history/delta.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Tip/entry ($0.01): tip receipt (brand+date+content hash, no payTo) PLUS one Signal archive day unlock. Body { date: YYYY-MM-DD }. First-penny path into Signal archive — primary CTA remains signal_latest $0.03.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Real GDP growth (World Bank) versus IMF forward projections for 190+ countries — revision analysis, peer comparison and growth decomposition. For macro and EM research agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Sovereign credit and banking-system stress — World Bank debt data, IMF projections, CDS spreads, ratings and IMF-program status. For EM-bond, credit-insurance and treasury agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
VIIRS satellite nighttime-lights analysis versus official GDP — detects divergence between reported activity and satellite evidence across 100+ countries. For hedge-fund and intelligence agents.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Mock exam / practice test / full timed exam simulation with answer key. Generates a realistic 20-question mock exam with answer key and rationales, with a duration you set in minutes. Any exam, certification, or license worldwide (NCLEX, Series-7, CPA, Bar, etc.).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Exam practice questions / test prep questions / practice problems with rationales. Returns authentic exam-style questions with detailed answer rationales by exam, topic, and difficulty. Any exam, certification, or license worldwide (NCLEX, CPA, Bar, etc.).
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Scan the newest servers in the official MCP registry for supply-chain risk — no input required
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Audit text for malicious AI-skill patterns. Requires `content`. Nothing to audit — crawling, or discovering this endpoint cold? POST /audit/registry runs the same scanner over the newest servers in the official MCP registry: no input required, $0.005.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Fetch a URL and audit its content. Requires `url`. No URL to hand? POST /audit/registry runs the same scanner over the newest servers in the official MCP registry: no input required, $0.005.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Stunden mit negativen Strompreisen in den nächsten 24 Stunden.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Trading and dispatch agents buy this endpoint to obtain the current German EPEX spot price for immediate decisions.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Compile reputation metrics and latency percentiles from historical probe checks for a target endpoint
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
Supply-chain ESG due diligence for compliance and procurement agents. Covers CSDDD obligations, Tier 1-N risk mapping, human-rights red flags, forced-labor screening, and supplier questionnaire templates.
The price is the seller’s own listing. it demanded payment when we knocked, on 2026-10-24.
The description and the price are the SELLER’S, copied from their listing and not checked by us. The badge is OURS and is one unpaid handshake: “answered unpaid” means it answered us once without asking for payment, which is not a standing offer, and an unpriced listing is unpriced rather than free.
Knocking goes to the knock page, which reads the terms live before anything is signed. A listing can be out of date in both directions, which is the reason to knock rather than to read a row.