| 7702 Delegation Check 🆕 Since Pectra an EOA can carry EIP-7702 delegated code (the 0xef0100 designator): every call to the wallet executes the DELEGATE's contract with the wallet's funds — a malicious delegate is total takeover, invisible to approval tools. Reads the designator, resolves the delegate and verdicts it: not_delegated / delegated_known (Coinbase's EOA→SmartWallet path) / delegated_unknown (🚨) / smart_contract. The drain surface no other Base tool checks. | com.tr | - | $0.03 | listed |
| AI Decision Synthesis API Paid x402 endpoint for multi-model AI voting and decision synthesis. | qonoro.ai | - | $0.05 | listed |
| AI Score paid scan POST /api/scan — agent-readiness scan for a domain (~$0.01 USDC per call) | getbags.app | - | $0.01 | listed |
| AI Web Extractor AI Web Extractor — turn ANY url into clean, LLM-ready markdown. POST {url}; get the main content as markdown (boilerplate/nav/ads stripped) with title, description, and links. The scrape / read / url-to-markdown primitive for RAG and research agents. Fast, cheap, x402-native. | vevang.com | - | $0.01 | listed |
| AI-powered web search via Tavily AI-powered web search via Tavily | signalfuse.co | - | $0.012 | listed |
| APEX Runner: Agent Stress Index Signal APEX Runner: Agent Stress Index Signal | apexrunner.ai | - | $0.007 | listed |
| APEX Runner: Apex Evolution Insight Signal APEX Runner: Apex Evolution Insight Signal | apexrunner.ai | - | $0.007 | listed |
| APEX Runner: Btc Price Tick Signal APEX Runner: Btc Price Tick Signal | apexrunner.ai | - | $0.007 | listed |
| APEX Runner: Fear Greed Signal APEX Runner: Fear Greed Signal | apexrunner.ai | - | $0.007 | listed |
| APEX Runner: Regime Micro Signal APEX Runner: Regime Micro Signal | apexrunner.ai | - | $0.014 | listed |
| APEX Runner: Regime Signal APEX Runner: Regime Signal | apexrunner.ai | - | $0.007 | listed |
| APEX Runner: Risk Assessment Bundle Signal APEX Runner: Risk Assessment Bundle Signal | apexrunner.ai | - | $0.007 | listed |
| ASN + IP geolocation Look up the Autonomous System (ASN), prefix, country, registry, and allocation date for an IPv4 address - or for a hostname (which is resolved first). Uses Team Cymru's free DNS-based IP→ASN mapping; no HTTPS upstream, no auth, no rate-limit headaches. | agent402.tools | - | $0.001 | listed |
| ATMS Treasury ATMS x402 challenge — crawler / probe endpoint (always 402, no side effects) | nathanlidurin.com | - | $0.001 | listed |
| Academic Paper Search Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless. | kadec0.xyz | - | $0.02 | listed |
| Active Pump Detector API Active-pump detector: is the asset currently pumping, and for how long vs the historical average pump length? Use to judge whether a move is fresh or exhausted before joining it. | swaphunt.dev | - | $0.003 | listed |
| Acurast Deploy Agent Deploy jobs to Acurast decentralized cloud with automatic payment | acu.run | - | $0.079 | listed |
| Ada Usd Ada Usd — an agent-callable ada usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call. | myceliasignal.com | - | $0.01 | listed |
| Address Trust 🆕 The 'who am I dealing with?' check for agents. Reads Coinbase's ONCHAIN verification (an EAS attestation by verifications.coinbase.eth) — meaning the address is tied to a KYC'd Coinbase account, the strongest sybil-resistance signal on Base — plus the address's Basename. Returns a verified/named/anonymous verdict + trust score. Pair with sign-guard/spend-audit for a full pre-transaction gate. Identity is a signal, not proof of honesty. | com.tr | - | $0.03 | listed |
| Aegis Curated Briefing Aegis curated briefing — AI-scored content feed with V/C/L metrics | aegis-ai.xyz | - | $0.01 | listed |
| Age calculator Compute a precise age (years, months, days) from a birth date to today (or a given date), plus total days. | agent402.tools | - | $0.001 | listed |
| Agent API Improve AI search visibility and get cited by ChatGPT, Perplexity, Claude & Google AI Overviews. AEO/GEO/SEO strategy, AI visibility audits, schema markup, llms.txt. 0.05 USDC/query. | basechainlabs.com | - | $0.05 | listed |
| Agent API Look up an ERC-8004 AI agent identity on Base mainnet. Returns name, description, services, x402 support, and owner. | memoryapi.org | - | $0.001 | listed |
| Agent Action Safety Quick Gate AI agent action safety: one-cent deterministic preflight for every consequential agent command. Returns risk, matched rule ids, and an exact machine-readable escalation call: full DestructGuard evidence for medium risk or the complete Action Safety workflow for high and critical risk. | hermesplant.com | - | $0.01 | listed |
| Agent Guardrail Decision Engine API Agent guardrail decision engine. Call once before every agent action; returns a single decision — proceed, slow down (with a reason and wait time), or stop — based on cost budget, chain depth, step cap and retry budget, and request volume pressure. Policy thresholds are configured separately via /policy; this endpoint only reports the decision for a single action. | redlynr.com | - | $0.001 | listed |
| Agent Profile Lookup API Agent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent. | thetrustlayer.xyz | - | $0.001 | listed |
| Agent Sofr API Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1. | regimeshift.xyz | - | $0.001 | listed |
| Agent Trust API Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet. | nsgoods.org | - | $0.005 | listed |
| Agent-Ready Assessment Audits a website for AI agent and AI crawler readiness from artefacts the caller supplies: robots.txt, HTML, response headers, llms.txt, sitemap lastmod values, /.well-known paths. Names the crawler policy per bot (GPTBot, ClaudeBot, PerplexityBot, CCBot, Google-Extended, Amazonbot, Applebot, Bytespider) and reports what it could not measure instead of guessing. Makes no outbound request. | ozdreamtools.de | - | $0.01 | listed |
| Agent402.tools OpenAI-compatible text embeddings over x402 - point any OpenAI SDK at base_url https://agent402.tools/v1 and pay $0.002 per call in USDC, no API key, no signup. Batch up to 64 inputs / 16k chars per request; text-embedding-3-small by default (3-la... | agent402.tools | - | $0.002 | listed |
| Agent402.tools Run 2-5 web searches in one call with a 20% volume discount vs. individual searches. Each query returns ranked results (title, URL, snippet). Ideal for multi-faceted research or comparing sources on different aspects of a topic. | agent402.tools | - | $0.08 | listed |
| Agent402.tools Bundled execution of the Macro economics workflow - Pull the canonical US macro dataset - yield curve, CPI, unemployment, fed funds, Sahm rule - without an API key. One x402 payment runs 7 underlying tools (treasury-yield-curve, yield-curve-spread... | agent402.tools | - | $0.65 | listed |
| Agent402.tools Convert an integer (1-3999) to Roman numerals, or a Roman numeral back to an integer. Auto-detects direction. | agent402.tools | - | $0.001 | listed |
| Agent402.tools Bundled execution of the User onboarding workflow - Take a signup form submission and run the full onboarding workup deterministically: validate the email, score the chosen password, mint a stable internal ID, derive a URL-safe handle from the dis... | agent402.tools | - | $0.05 | listed |
| Agent402.tools Decode a vehicle VIN via NHTSA vPIC: make, model, year, trim, body class, engine, fuel, plant, and vehicle type. Accepts full or partial VINs (partial needs modelYear). Live gov data, no key. ?vin=1HGCM82633A004352 | agent402.tools | - | $0.004 | listed |
| Agent402.tools Top N coins by market capitalization with full market snapshot per coin: rank, price, 24h change, 7d change, 24h volume, market cap, circulating supply, and all-time high. Default 10, max 100 per call. Backed by CoinGecko's public API. | agent402.tools | - | $0.015 | listed |
| Agent402.tools Last N business days of US Treasury constant-maturity yields, oldest→newest. Source: FRED DGS* series (St. Louis Fed), public domain. ?days=30 (1-250, default 30). | agent402.tools | - | $0.015 | listed |
| Agent402.tools Bundled execution of the Domain intel workflow - Full domain security and SEO intelligence in one call: WHOIS, DNS, TLS cert, HTTP headers, tech stack, robots policy, and certificate transparency. One x402 payment runs 6 underlying tools (whois, d... | agent402.tools | - | $0.075 | listed |
| Agent402.tools Screenshot any public URL in headless Chromium. Returns a PNG image. Query params: ?url=https://…&fullPage=true (optional). | agent402.tools | - | $0.015 | listed |
| Agent402.tools Bundled execution of the Financial analysis workflow - Quick company snapshot: live quote, 9 key financial metrics (revenue through cash flow), and upcoming earnings - one call, one payment. One x402 payment runs 3 underlying tools (stock-quote, c... | agent402.tools | - | $0.08 | listed |
| Agent402.tools Bundled execution of the Document intelligence workflow - Turn any PDF or image URL into structured data - metadata, extracted text, sliced page ranges, OCR for scanned docs, decoded barcodes / QR codes - without falling back to a vision LLM guess... | agent402.tools | - | $0.20 | listed |
| Agent402.tools Fetch any of FRED's ~800,000 economic time series by series ID - GDP (GDPC1), CPI (CPIAUCSL), unemployment (UNRATE), fed funds (DFF), and so on. Supports date windowing and the standard FRED units transformations (lin, chg, ch1, pch, pc1, pca, cca... | agent402.tools | - | $0.015 | listed |
| Agent402.tools Bundled execution of the Link preview card workflow - The 'turn a URL into a card-shaped preview' workflow. Pull OpenGraph/Twitter card metadata, fetch the article body as a description fallback, normalize the og:image into a standard 1200×630 soc... | agent402.tools | - | $0.12 | listed |
| Agent402.tools Real-time Sahm Rule recession indicator from FRED (SAHMREALTIME series). The Sahm Rule triggers when the 3-month moving average of US unemployment rises ≥0.50 percentage points above its prior-12-month low - historically a clean recession signal. ... | agent402.tools | - | $0.015 | listed |
| Agent402.tools Describe a task (or name a slug) and the Smart Order Router resolves the best-matching tool and RUNS it in the same call - flat $0.01 covering any tool listed at $0.005 or less, from THIS host's catalog or any external x402 seller in the open inde... | agent402.tools | - | $0.01 | listed |
| Agent402.tools Synthesize a JSON response body for one operation + status code in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path. Pick the response by explicit `status`, else the first 2xx, else the first documented respon... | agent402.tools | - | $0.002 | listed |
| Agent402.tools OpenAI-compatible chat completions over x402 - point any OpenAI SDK at base_url https://agent402.tools/v1 and pay per call in USDC (Base, Solana, Polygon, Arbitrum, Stellar), no API key, no signup. Budget/mid models: gpt-4o-mini, claude haiku, gem... | agent402.tools | - | $0.02 | listed |
| Agent402.tools Bundled execution of the Text hygiene workflow - Turn a wall of dirty text - chat logs, scraped pages, user-generated content, log dumps - into something safe to store, search, and pipe into the next step. Measure first, redact PII before anything... | agent402.tools | - | $0.05 | listed |
| Agent402.tools Recently-filed S-1 (initial registration) or 424B4 (final prospectus - actual priced IPO) filings across all US issuers. Default returns S-1 filings (companies preparing to IPO) in the last 30 days; pass form=424B4 for actual IPOs that priced. Sou... | agent402.tools | - | $0.015 | listed |
| Agent402.tools Execute Python or JavaScript code in a secure, isolated cloud sandbox. Returns stdout, stderr, and the expression result. No setup needed; pay per call via x402. 30s timeout, 10k char code limit. | agent402.tools | - | $0.02 | listed |