| NetIntel Query the crt.sh certificate transparency log database to enumerate all SSL certificates ever issued for a domain — returns subdomains discovered, certificate issuers, validity periods, and a risk score flagging wildcard certs, expiring certs, and suspicious issuance patterns. | netintel.dev | - | $0.01 | listed |
| NetIntel Check if a domain name is available for registration by querying RDAP and DNS — pass a bare name (e.g. mybrand) to sweep it across 10 popular TLDs simultaneously, or a full domain (e.g. mybrand.com) to check that single domain — returns registration status, expiry date if registered, and available/taken TLD lists so agents can find the best domain for a brand or project. | netintel.dev | - | $0.05 | listed |
| NetIntel One call combines domain availability, heuristic value appraisal, and TLD pricing into a single acquisition brief — tells an agent whether a name is available, what it's worth, and what it costs across TLDs, concurrently and with graceful partial-failure handling. | netintel.dev | - | $0.20 | listed |
| Node4all Pdf2md API Node4All pdf2md — layout-aware PDF → Markdown (pdf2md) conversion powered by @opendocsg/pdf2md, ideal for ingesting long documents into agent context windows. Accepts a multipart "file" upload (application/pdf, ≤10MB) and returns text/markdown. Operator: Node4All (https://node4all.com). Currency: USDC on Base. | node4all.com | - | $0.05 | listed |
| Nonce API Next transaction nonce for any Ethereum wallet via eth_getTransactionCount - how many txs it has sent | onesource.io | - | $0.003 | listed |
| OFAC SDN Check Screen an entity or alias name against the OFAC SDN list. Exact match on a normalised string only (trim, collapse whitespace, NFC, casefold). Returns 503 if the list has never loaded (deny-on-error policy). | aarei.ai | - | $0.02 | listed |
| Octodamus API Octodamus — AI oracle for crypto and tokenized NYSE markets. BUY/SELL/HOLD signals, Polymarket edges, Fear & Greed, macro regime. Ed25519 signed. | octodamus.com | - | $0.01 | listed |
| Ot Contextualised Cve Triage For Ics/scada API OT-contextualised CVE triage for ICS/SCADA. Pass ?id=CVE-XXXX-XXXX. Returns OT-adjusted severity, cyber-physical impact, patch feasibility, CISA KEV status, and prioritised action. DeepSeek-enriched with live NVD and CISA-KEV data. | onrender.com | - | $0.02 | listed |
| Otto AI Is USDC/USDT/DAI holding its $1 peg, and is stablecoin supply growing or shrinking (risk-on vs risk-off)? Live peg deviation (bps), circulating supply + 1d/7d/30d flow, market dominance and chain spread for the top 30 USD stablecoins, plus downside depeg alerts for any coin trading >0.5% below peg. Sourced from DefiLlama (public). Refreshed hourly. | ottoai.services | - | $0.001 | listed |
| Otto AI Search DEX pools across Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism and Avalanche by token symbol, name, or contract address. Returns pool address, DEX, price USD, 24h volume, liquidity (TVL), FDV, 24h price change and 24h txns as flat JSON numbers — no nested joins. Pool search, pool finder, DEX pools, liquidity pools, onchain pool lookup. $0.001 per call. | ottoai.services | - | $0.001 | listed |
| Otto AI Real-time crypto market news with sentiment analysis and top headlines ranked by importance. | aidress.ai | - | $0.001 | listed |
| Otto AI Hyperliquid perpetuals market data: live mark/oracle price, funding rate, open interest, max leverage, and size specs for any tradable asset. | ottoai.services | - | $0.001 | listed |
| Otto AI Registration data for any domain, straight from authoritative RDAP registries (the structured WHOIS successor): registrar, ICANN/EPP domain status codes, creation, last-updated and expiration dates, authoritative nameservers, and DNSSEC delegation. The fast, license-clean way for an agent to vet a domain, sender, or counterparty. Keyless, structured JSON, pay-per-call. | ottoai.services | - | $0.001 | listed |
| Otto AI 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). | ottoai.services | - | $0.001 | listed |
| Otto AI DeFi yield farming markets with live APYs across Aave V3 and Morpho on Base, Ethereum, and other major chains. Find the best stablecoin yield (USDC) and ETH yield for idle capital: returns supply APY, TVL, and vault/market addresses per token, filterable by protocol, chain, or token symbol. Compare DeFi yield rates across lending markets and vaults before depositing. | ottoai.services | - | $0.001 | listed |
| Otto AI Smart-money bundle for any US-listed company by ticker, in ONE call: SEC Form 4 insider activity (purchases vs sales — SEC codes P/S, net purchase-sale balance, who filed and their roles) PLUS trailing-twelve-month fundamentals (revenue + YoY, net income + YoY, diluted EPS) from XBRL filings. 4/A-amended insider windows withheld once detected (~1h lag): unpaid 503. Smart money, fundamentals. Public-domain SEC EDGAR. $0.006 per call. | ottoai.services | - | $0.006 | listed |
| Otto AI Is anything breaking right now? Composite crypto market-stress digest: a 0-100 score (low/moderate/elevated/high) blended from GLOBAL USD-stablecoin depeg health (DefiLlama) and BASE on-chain DEX exit-liquidity, with a per-leg breakdown and an AI risk line. Covers stablecoin systemic risk + Base liquidity microstructure (NOT derivatives or sentiment). Both legs required for a score. Hourly. $0.002 per call. | ottoai.services | - | $0.002 | listed |
| Otto AI Full holder analytics for any Base ERC-20: total holders with 24h/3d/7d/30d holder-change momentum, whale-tier distribution, acquisition mix (swap vs transfer vs airdrop), top-10/25/50/100 supply share, labeled top holders with concentration (top1/5/10/20% + contract-held%) and an AI concentration-risk read. Bag check, holder analytics, holder concentration, whale distribution. $0.03 per call. | ottoai.services | - | $0.03 | listed |
| Otto AI Resolve any domain in one call: A/AAAA, MX, NS, CNAME, SOA and TXT records, plus parsed email-auth posture — SPF policy, DMARC policy, and detected DKIM selectors. A drop-in nslookup/dig replacement for agents, resolved over DNS-over-HTTPS (DoH) with redundant resolvers and automatic failover. Keyless, pay-per-call, structured JSON. | ottoai.services | - | $0.001 | listed |
| Otto AI Multi-chain portfolio snapshot with token balances and yield positions for a user's Otto AI Safe accounts across Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche, and Solana. | ottoai.services | - | $0.001 | listed |
| Otto AI Live DEX token price in USD by ticker symbol or contract address across Base, Ethereum, Solana, Polygon, BSC, Arbitrum, Optimism and Avalanche (bare 0x defaults to Base, else network:address). Symbols resolve to the canonical top-market-cap asset — squat-proof. Flat JSON: price, 24h change, volume, market cap, FDV, liquidity — echoes the matched deployment. Token price, crypto price, DEX price. $0.001 per call. | ottoai.services | - | $0.001 | listed |
| Paddock niche gap analysis — one-time query Paddock niche gap analysis — one-time query | paddock.finance | - | $0.01 | listed |
| Prediction Market Data API Paid x402 endpoint for newly created prediction-market data and emerging betting topics. | ottoai.services | - | $0.001 | listed |
| Prediction Market Data API Paid x402 endpoint for newly created prediction-market data and emerging betting topics. | aidress.ai | - | $0.02 | listed |
| Profile enrichment from LinkedIn URL Profile enrichment from LinkedIn URL | oneshotagent.com | - | $0.005 | listed |
| Property Risk Full API Evaluate a US property address for parcel match, FEMA flood zone, flood proximity, taxing entities, school district, permit history, zoning/land-use context, insurance red flags, due-diligence risk score, quality score, recommended next steps, and official source links. | workers.dev | - | $0.001 | listed |
| PulseChain Head Latest PulseChain block number and timestamp. | immuta.app | - | $0.001 | listed |
| Qualify Lead API Revenue intelligence lead qualification for autonomous agents, including fit scoring, cited evidence, risks, buying signals, sales angle, and next action. | qonoro.ai | - | $0.60 | listed |
| Quartermaster Image Description AI vision: describe any public image, including visible text (OCR-lite). | surewhynot.app | - | $0.005 | listed |
| Quartermaster Text Stats Word, sentence, and paragraph counts, reading time, and readability score for text. | surewhynot.app | - | $0.001 | listed |
| Quick ZK Auth Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding. | quickai.build | - | $0.05 | listed |
| ReadX A user's profile info: id, name, bio, location, follower/following counts, verification. Example: GET /api/jack/info | readx.sh | - | $0.01 | listed |
| Relaystation Attachments $0.0005/MB. List or extract files embedded inside a PDF — pull attachments out programmatically. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Baton A baton is a durable storage object agents create, append, read, and cryptographically prove — then hand off to other agents or people. Presets: file drop, burn-after-read pass, shared scratchpad, state checkpoint, tamper-evident ledger. Metered by bytes, time, egress, writes; price frozen at purchase. 155 tools, one balance — relaystation.ai | relaystation.ai | - | $0.01 | listed |
| Relaystation Cast $0.0002/MB. Coerce column types (string, integer, number, boolean, date) — stop fighting stringly-typed data. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Data Diff $0.0002/MB. Row-level changeset between two tables — added, removed, and changed rows. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Extract Form $0.28/document. Extract form fields as key→value pairs from scanned or digital documents (Textract Forms) — structured JSON out, no template needed. 155 tools, one balance — relaystation.ai | relaystation.ai | - | $0.28 | listed |
| Relaystation Form $0.001/page. Fill or flatten PDF forms programmatically — field values in, finished PDF out. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation From Office $0.005/call. Convert Word, Excel, or PowerPoint to PDF via LibreOffice — layout preserved. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Image Compress $0.0003/MP. Re-encode an image at lower quality to shrink file size — bandwidth-friendly output. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Image From HTML $0.003/call. Render HTML to an image — sandboxed headless Chromium screenshot of your markup. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Image Metadata $0.0005/call. Read dimensions, format, and EXIF presence — inspect before you process. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Image OCR $0.003/call. Extract text from an image — Tesseract, 10 languages, plain text out. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Images $0.001/page. Extract every embedded image from a PDF as PNGs. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Invoice $0.0002/call. Render a clean invoice PDF from structured JSON — line items, totals, branding. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Loudnorm $0.0005/MB. Normalize audio loudness to broadcast EBU R128 — LUFS, true-peak, and range targets. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Markdown To HTML $0.0002/MB. Convert markdown to HTML — always whitelist-sanitized, safe to embed. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Merge $0.001/page. Combine any number of PDFs into one, in the order you choose. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Mock Data $0.0002/call. Generate realistic fake rows from a field→type schema (JSON/CSV/NDJSON) — test data on demand. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |
| Relaystation Moderate Image $0.005/image. Flag unsafe or inappropriate image content (Rekognition moderation) — categories with confidence. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny | relaystation.ai | - | $0.01 | listed |