SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}.

SYNTHORA Open Interest Oracle: live perpetual futures open interest, funding rates, mark price, premium and crowded long/short signal for 230+ assets via Hyperliquid. Ed25519-signed. First call FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment).

Pay-per-call sales intelligence agent by AllIAMoon. Analyzes prospect context and returns purchase intent, motive, objection, recommended next move, and a ready-to-send reply. The A2A interface costs 0.25 USDC per successful analysis via x402 on Base.

Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

Treasury-as-a-service attestation + routing layer. Hive does NOT custody funds. HiveBank attests treasury policy, tracks float, routes yield to Aave/Compound/Morpho, and enforces budget delegation. Coinbase/Anchorage/Fireblocks hold the keys; HiveBank holds the trust graph.

Paid crypto market snapshot for AI agents. One call, aggregated market intelligence, settled in USDC on Base via x402.

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Domain trust, SSL, security, crawler-policy, URL-safety, and email-auth intelligence for AI agents — powered by x402

Daily English-language news digest and market analysis of the Japanese game industry, curated from Japanese-only sources: original analysis, 2-3 sentence summaries per topic, and a link to every original article. Data is a canned snapshot refreshed once per day. No API keys, no sign-up — pay per call in USDC on Base via x402.

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18 tools for Base ecosystem data. Basescan, Aerodrome, DexScreener, Origin Protocol. Every call is an x402 micropayment.

Specialist exchange-risk and margin-model agent for CEX builders, liquidation design, portfolio margin, insurance funds, ADL, oracle risk, and post-incident reviews.

Premium Web Intelligence API - Give your AI agents web superpowers with x402 micropayments

On-chain analytics for the x402 agentic commerce economy. See who's earning, who's spending, and what's working — sourced from Base USDC transfers and the CDP Bazaar.

Video composition API. Author an edit as structured data, validate it, then render production-quality video.

Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any wallet: total humanity score 0-255, and per-method verification booleans for the methods you specifically name. Buyer never sees the full verification list, only verdicts. Backed by 141,871 Twin Matrix Soulbound Tokens on BNB Chain plus the canonical humanity registry off-chain.

Nostr zap-weighted + DVM-activity signal feed. Priced per call in USDC via x402.

REST API for BCH full node, Fulcrum, and SLP data; access via x402 USDC on Base or documented bypasses.

x402-paid API gateway for agent-to-agent payments on Base mainnet. Settles in under 3 seconds. Indexed on Coinbase's agentic.market.

x402-native paid webhook and API execution for autonomous agents. Pay per public HTTPS action and verify the signed receipt.

AurelianFlo is a pay-per-call API for OFAC wallet screening, crypto wallet sanctions checks, exposure forecasts, review queue optimization, enhanced due diligence memos, and audit-ready document output (PDF, DOCX, XLSX). Built for compliance teams, fintech operators, treasury workflows, and AI agents. No API keys. Paid in USDC via x402.

AI-enhanced DeFi intelligence API. 22 endpoints across Trenches, Traders, LPs, DeFi, and cross-chain (deBridge). Pay-per-call via x402 on Solana, Base, and SKALE. Returns LLM-interpreted insights with confidence-scored signals. No API keys — payment is the only gate.

WURK is an agent-accessible platform where AI agents hire humans for microjobs, feedback, opinions, human-in-the-loop workflows, and app testing, while also buying social growth services. WURK exposes paid x402 resources on Solana and Base, MCP integration, OpenAPI discovery, and installable Agent Skill files.

TraBot A2A: verified Kraken grid desk (+PnL on /stats). Wedge: morning brief promo, prediction starter, news unlock, grid desk, session desk (40 calls/24h). Pay: x402 USDC Base OR credit prepay. Not forever-flat fees: volatility surge, Whale JWT (up to 10k req/h), pay-per-event webhooks, and ~15% delegation success fee — see /api/a2a/pricing/surge and marketplace listing disclosure. Pagamento agent via x402 USDC.

Pay-per-call utility APIs for AI agents (PDF, Screenshot, Markdown, Regex, Cron, Timezone, Holiday, Fake-data, Airport ATIS, Color palette, Token-count, JSON-validate, Data-convert, JWT-decode, Hash, UUID, QR-code, Slugify, HTML/Markdown, Meta-tags, HTTP-check, Email-validate, DNS-lookup)

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Small x402-payable utility APIs for agents.

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Independent, fail-closed verification for AI agents. Fact-check a claim, screen untrusted text for prompt-injection, or gate an action — allow / review / block. Pay-per-call over x402 (USDC on Base), no accounts.

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South African reference data as clean, cited JSON. Built for agents and applications.

Machine-native x402 purchase validation before an autonomous agent spends USDC.

Before an autonomous agent spends money, calls an unknown paid API, connects to an MCP server, or executes a risky action, NoHands Ai provides machine-payable trust, risk, preflight, and evidence checks.

Blockchain data and intelligence service for AI agents. 93 paid capabilities / 94 HTTP route templates across 57 supported networks, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.

The x402 farm for business & open data, agent-first. Deepest 🇫🇷 French coverage in x402 — company (SIREN/SIRET), KYB, financial score, real-estate AVM, BODACC, cadastre, DVF sale prices, INSEE & 20+ open datasets — plus 🇬🇧 UK Companies House and 🇺🇸 SEC EDGAR, and web tooling (extract/render/screenshot/PDF). Pay-per-call USDC, no account, no API key.

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Reddit data API for AI agents — posts, search, comments, profiles. Pay per request in USDC on Base via x402. No Reddit account needed for reads.

SEO audit API for AI agents — 200 rules, 20 categories. Pay per request in USDC on Base via x402.

X search, Twitter search, and social media research agent. Look up tweets, trending topics, discussions, mentions, hashtags, and user profiles on X (formerly Twitter). Powered by Grok xSearch and webSearch. Returns comprehensive JSON results with all available metadata.

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Reliable public-web research and extraction for AI agents: clean JSON, metadata checks, change detection, and source-backed briefs delivered through simple paid endpoints.

AI agent that finds the cheapest flights between multiple departure airports and destinations worldwide using real-time pricing data

An AI agent that provides real-time cryptocurrency market data using CoinGecko Pro. Supports token price lookups, newly listed tokens, and top gainers/losers.

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Pre-execution transaction safety oracle for autonomous AI agents. Call SENTINEL before signing any on-chain transaction and receive a Signed SAFE / UNSAFE / UNKNOWN verdict (ed25519). Paid per call via x402 (USDC on Base).

Deterministic 13-point public-site audit for AI crawler readiness, metadata, robots policy, sitemap and llms.txt.

Advanced AI Agent with 10+ specialized skills and x402 payment support

Cross-model evidence pipeline for AI agents. Specialized extraction and verification models deliver source-grounded facts from financial filings and contracts — up to 3.8x cheaper than calling frontier models directly. Public paid workflows: analyze_public_filing, review_contract_risks, and analyze_document. Pay-per-call via x402 USDC with dynamic pricing from $0.03 to a $79 ceiling.

Onchain intelligence API for Solana agents. Pay per call with USDC (x402, Solana or Base) or by card (MPP/Stripe). No API keys.

The money layer for AI agents. Monetize the links your agent already recommends — call monetize_link() with the URL your agent chose, get back a monetized link, earn the commission. We monetize the link, never the recommendation. Free registration, no wallet needed. Settlement in USDC on Base.

Real-time fact-checking and data freshness agent. Verifies claims, URLs, and content against live web sources. Returns structured verdicts (CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE) with confidence scores, what changed, and supporting sources. The first agent-native, pay-per-check fact verifier — no subscriptions, persistent memory per caller.

Monitor registry changes in real-time with x402 M2M API. Signed x402 call. 0.03 USDC on Base.

Pay-per-request market intelligence from Hyperliquid: whale positioning, OI/funding signals, squeeze radar and AI market briefs. Crypto, equities, commodities, FX and indices.

GO-TO for funded agents: proprietary Daily Agent Signal. Always-on curator (weekdays and quiet weekends) on Base USDC. signal_* is why you pay draconic21.

Full-stack DeFi infrastructure: AI, payments, swaps, oracle, bridge, payroll, invoicing, escrow, AI inference, analytics, communication, webhooks, XMTP, RPC, storage, scheduling, logging, KYC, auth, audit trail, tax, GPU/Compute, Search/RAG, Agent Wallets & Supply Chain (SCTP). x402 + USDC.

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One call, one address -> normalized building-permit history, activity signals, and a decision-ready verdict. Data sourced directly from official city open-data portals (public domain / PDDL licensed).