x402 List

x402 Protocol Service Directory

All x402 Services

SERVICES ── 680 total ── showing 1-50 ── for live status visit /status

STATUS ── ● online · ◐ degraded · ○ offline · ─ unknown ── live health, see /status.

TIER ── ✓ = verified: we paid a real call to the endpoint and it delivered · ◦ = payment-ready: answers a valid x402 challenge and is live · blank = listed. See /methodology.

VOL 30D and BUYERS 30D are a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.

·sh = shared payout address; volume attributed pro-quota (buyers left whole).

All x402 services with live status, name, verified status, description, category, endpoint count, cheapest per-request price, 24-hour uptime, measured 30-day on-chain volume, distinct 30-day buyers, and supported networks (testnet networks are marked). Select a column header to sort the whole catalog by that column.
STATUS NAME TIER DESCRIPTION CATEGORY EP FROM $/REQ UPTIME 24H VOL 30D BUYERS 30D NETWORKS
scvd.store — evidence observatory for the x402 economy scvd.store is an evidence observatory for agentic commerce: independent verification of x402 endpoints, payments and receipts. Before an agent pays an x402 endpoint, we check that it can be paid. After it pays, we check the signed receipt. Over time we watch endpoints and publish a dated, signed corpus. Sellers use it to prove a door works; buyers use it before spending. Every artifact is signed, expires, and names what we did not see. Not escrow, not a rating, not a guarantee. Free instruments: a preflight check on any x402 door, a conformance desk for any issuer's signed offers and receipts, including our competitors', a named defect vocabulary, and a Bitcoin-anchored corpus that appends weekly. Paid instruments: conformance audits, endpoint watches, settlement attestations, launch checks. Never a ranking, and never a verdict without its derivation and denominator beside it. Operated by Record Creative Co. LLC. Verification 32 $0.001 100.00%19 chk $1.0k 14 ARB / BSE / POL / SOL
AnySpendimported x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC. Content 2 $0.10 100.00%19 chk $382 117 BSE
Bitrefillimported API to search gift cards, eSIMs and mobile top ups and pay for them in USDC via x402, priced per call and with no account. Endpoints cover catalog search, product detail, and invoice creation, payment and status, on Base, Arbitrum, Polygon and Solana. Finance 8 $0.001 100.00%19 chk $570 100 ARB / BSE / POL / SOL
glim.shimported Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint. Data 10 $0.001 100.00%19 chk $52 106 BSE / SOL
StableSocialimported Pay-per-request API for public social media data across TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Reddit and other platforms, priced at $0.06 per call. Aggregates third-party scraping providers (Scrape Creators, Data365, Lightreel) behind one x402 endpoint set. Data 10 $0.06 100.00%19 chk $301 101 BSE / SOL
Agent402.toolsimported Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus an OpenAI compatible LLM gateway. Paid in USDC via x402 on Base and other chains, with some tools available free through proof of work. AI 10 $0.005 100.00%19 chk $136 149 ARB / AVX / BSE / POL / SOL
Clash of Coins Checkoutimported x402 checkout gateway for the Clash of Coins game: exposes the catalog, quotes and purchase of NFT sale lots and in-game shop items, paid in USDC on Base. Other 2 $0.001 100.00%19 chk $24.7k 207 BSE
OneSourceimported RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key. Blockchain 10 $0.001 100.00%19 chk $71 1921 BSE
Loyal Sparkimported Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP. Blockchain 10 $0.001 100.00%19 chk $136 105 BSE
StableEnrichimported Pay-per-request access to third party web search and enrichment APIs, including Exa, Firecrawl, Clado, Google Maps, Whitepages, Reddit and PDL, behind a single endpoint with no auth, paid in USDC on Base or Solana. Data 10 $0.002 100.00%19 chk $2.0k 346 BSE / SOL
Otto AI AI-agent data storefront on x402 V2: 80 pay-per-call endpoints — crypto and market intelligence (news, KOL sentiment, token security, holders), DeFi and prediction-market data, US equities (SEC EDGAR insider trades, 13F holdings, earnings, analyst ratings), web and domain intelligence, FX and weather, AI image/video/research tools, and the Otto x402 Router (meta-intelligence, full auto, feedback and refunds). USDC on Base or Solana, from $0.001 per call, no API keys. Discovery: /.well-known/x402, /openapi.json, /llm.txt. AI 80 $0.001 100.00%50 chk $62 338 BSE / SOL
Exa AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys. AI 1 $0.007 100.00%51 chk $46 137 BSE / SOL
agentstools 359 pay-per-call HTTP tools for AI agents on one host: web search and page extraction, cited answers, crypto and DeFi market data, on-chain analysis and contract risk, security and breach checks, US government and regulatory records, and enrichment. No account and no API key - an unpaid request returns an HTTP 402 quote, pay with an X-PAYMENT header and the call is served. USDC on Base; the same catalog is also served over Solana on payai.agentstools.dev. Data 20 $0.002 100.00%19 chk $10 80 BSE
fetcher.sh — Twitter, TikTok, Instagram & Web Data APIs 111+ web-data endpoints across 11 services (Twitter/X, TikTok, Instagram, YouTube, Reddit, Google Search/Maps/News/Play, App Store, Yelp). $0.001–$0.05/call, paid via x402 or prepaid credits, no account/API key. Full catalog: /llms.txt, skill: /skill.md Data 35 $0.002 100.00%19 chk $6 20 BSE / SOL
Council of AI Independent measurement artefacts for AI behaviour. Free loginless verify at /gspc-verify. x402 micropayments on artefacts only — never a score, grade, badge, or certificate. Living board GET /api/gspc. OpenAPI https://councilof.ai/openapi.json Verification 1 $0.01 100.00%19 chk $0.23 22 BSE
x402 DEX data, agent utilities & Uniswap v4 hook risk API Pay-per-call (x402/USDC on Base) market-data, geocoding, randomness and hook-risk endpoints. Free demo route included. Data 50 $0.01 100.00%19 chk $1 22 BSE
SniperX•x402 SmartTrader (KOL/SmartMoney/Whale) activity and analytics on Alpha and Newpair. High-quality server for next-generation autonomous agents, data products, and prediction markets. Data 22 $0.001 100.00%19 chk $527 13 SOL
OSHA Inspection Search API Provide an establishment name and optional state, date-range, violation, and limit filters. Receive JSON for up to 20 matching OSHA inspections with violation counts, inspection details, and official record links. Data 1 $0.02 100.00%19 chk $7 23 BSE
Northeast Deal Intel Commercial real estate intelligence API for 9 Northeast US states. 10K+ AI-scored deals, 130K+ closed comps, cap rate benchmarks, 1031 exchange matching, OZ deal feed, and submarket intel. Pay per call in USDC on Base mainnet — no signup required. Data 8 $0.02 100.00%19 chk $0.57 25 BSE
RobinX Measured intelligence for Robinhood Chain (chain 4663): every X caller and deployer graded against real on-chain price since chain genesis. Caller accuracy records, deployer reputation, labeled holder-structure diffs, the social tape, and a full token dossier - inputs for trading agents, not predictions. Per-call x402 (USDC on Base), no API key, no signup. Machine catalog at /.well-known/x402; hosted MCP at /mcp. Data 15 $0.01 100.00%19 chk $5 22 BSE
Base USDC lending APY Live USDC lending APY on Base, read on-chain: Aave V3 USDC vs Morpho Gauntlet USDC Prime. Size-aware pick for parking idle USDC: USD per year, days to break even vs Base gas, skip if entry is uneconomic. Conservative two venues only. Finance 1 $0.01 100.00%19 chk $0.66 26 BSE
Oblique Markets x402-paid APIs and MCP for AI agents: on-chain analytics, web extraction, x402 endpoint verification, Bazaar market data - USDC per call, no accounts. Data 3 $0.002 100.00%19 chk $24 61 BSE / SOL
MicroTap 20 monetized HTTP APIs on the x402 protocol — prediction markets (Polymarket, Kalshi), DeFi/crypto data, multi-chain on-chain reads, live weather, real-time web search, and cross-platform prediction-market divergence signals. No API keys or signups: call any route, receive an HTTP 402 with the exact USDC price, sign a payment, retry, get the data back. Payments settle on Base, Polygon, Arbitrum, or Solana. Data 20 $0.001 100.00%19 chk $0.58 45 ARB / BSE / POL / SOL
RC Quantum Data Oracle Signed, verifiable market-data endpoints from RC Quantum. Six paid products over x402 on Base: BTC performance history, hourly BTC intel, a cross-venue perpetual funding surface, a compact funding-regime read, a cross-asset macro event-risk surface, and a BTC DCA accumulation indicator. Every payload is Ed25519-signed and independently verifiable against a published key. Data, not investment advice. Data 6 $0.01 100.00%19 chk $2 30 BSE
Strale Business data and compliance APIs for AI agents. 250+ independently quality-tested capabilities: company registry lookups across 20+ countries, KYB and sanctions/PEP screening, VAT/IBAN/LEI validation, document extraction. Pay per call in USDC on Base via x402, no signup and no API key. Every call returns an audit record with cryptographic chain hashing. Data 10 $0.0216 100.00%19 chk $267 27 BSE
Agent Web Access Live web access for AI agents: fetch JavaScript-rendered pages as clean, LLM-ready markdown/text/html, extract elements by CSS selector, and capture full-page screenshots or PDFs of any public URL. Headless Chromium, SSRF-validated. Pay-per-call in USDC via x402 (exact scheme, Base) — no API key, no signup. Data 4 $0.002 100.00%19 chk $8 27 BSE
AgentToll Base-native onchain data for AI agents, pay-per-call in USDC via x402 v2. Token prices by contract, wallet portfolios valued in USD, token safety checks (honeypot/taxes/owner powers), new-pool radar with a live track record scored against past snapshots, Uniswap v4 pools read seconds after creation, Basename resolution, gas costing, Turkish lira and exchange-spread checks, stateless watch diffs. 21 paid endpoints ($0.001-$0.008), 4 free. Every 402 quote carries the endpoint's request and response schema. Failed requests are never charged. Open source (MIT), MCP server on npm (agenttoll-mcp). Data 21 $0.001 100.00%19 chk $0.64 21 BSE
API Acre Official-source public data from SEC, GLEIF, OFAC, USAspending, the Federal Register, NHTSA, the World Bank, NOAA/NWS, MET Norway, GeoNames, and the U.S. Census, plus retailer product-price evidence, timezone conversion, global place and reverse geocoding, web and domain intelligence, deterministic document and data transforms, developer analysis, and read-only Base utilities. All paid endpoints use POST. Exact USDC on Base via x402 and CDP, with JSON schemas, free samples, browser checkout, MCP, and A2A discovery. Data 74 $0.001 100.00%19 chk $34 22 BSE / SOL
x402engine 108 pay-per-call AI and data APIs for agents, including 72 LLMs, image, video, audio, web, code, crypto, wallet, travel, and utility endpoints. Pay per request in USDC on Base, MegaETH, or Solana with no API keys or subscriptions. AI 13 $0.001 100.00%19 chk $27 57 BSE / SOL
Rubric Protocol — Post-Quantum AI Attestation Post-quantum attestation and evidence services for AI agents. Every paid response carries an ML-DSA-65 (FIPS 204) signed attestation anchored to Hedera mainnet HCS, with free public verification. Catalog: pay-per-call decision attestation from $0.005, bulk hash anchoring from $0.000027/record, attested gpt-4o-mini inference binding prompt and response hashes to the exact model version, agent operating-history lookups computed from records that cannot be backdated, independent attestation audits with mirror-node confirmation, attested Hedera network facts from $0.001, and a regulatory-change feed for AI systems. A failed mint is never charged. Verification 10 $0.001 100.00%19 chk $12 31 BSE / SOL
LION — Verified Company & Compliance Data AML wallet + company counterparty checks for AI agents. $0.001 wallet-screen (PASS/WARN/BLOCK OFAC check), $0.05 compliance bundle (OFAC + domain trust + firmographics), $0.012 deep research, $0.95 verified company file. Ed25519-attested JSON, keyless x402 on Base USDC. Buyer pack: https://lionx402.com/for-agents Verification 5 $0.001 100.00%19 chk $7 27 BSE
ApiToll SEC EDGAR Dataimported SEC EDGAR data by ticker or CIK: 10-K, 10-Q and 8-K filings, Form 4 insider trades, and a bundle combining insider, 13F holdings and recent 8-K in one call. Sources live from data.sec.gov. A free coverage route reports which forms exist before any paid call. Finance 3 $0.003 100.00%19 chk $0.26 32 BSE / SOL
StableFinanceimported Pay-per-request API for US equities data: prices, financial statements, SEC filings, 13F holdings, insider trades and central bank rates. Wraps the Financial Datasets AI API at $0.02 per successful call, no upstream account needed. Finance 10 $0.02 100.00%19 chk $2 21 BSE / SOL
OnchainPulseimported Pay-per-query intelligence API for onchain finance: pre-trade token safety verdicts on Solana and EVM, RWA and tokenized asset data, crypto regulation summaries, ETF flow figures and a terminology decoder, all returned as structured JSON. Data 10 $0.015 100.00%19 chk $369 78 ARB / BSE / POL / SOL
Vibe Springsimported Pay-per-call data API serving many endpoints on one host: weather and forecasts, earthquakes, flood and marine conditions, fiat exchange rates and conversion, on-chain address risk, plus alert and invoice workflows. No accounts or API keys, USDC micropayments on Base. Data 10 $0.002 100.00%19 chk $3 84 BSE
IXSimported Pay-per-call API exposing IXS tokenized real world asset vaults: vault listings with their underlying asset and on-chain details, returned as JSON. bash.001 per request in USDC on Base. Finance 1 $0.001 100.00%19 chk $0.08 29 BSE
Web Search & Data API — SERP, page reader & scrapersimported Pay-per-call web search and web data for AI agents. Multi-engine SERP (web + news, batch, rank-fused), search-and-read (top hits to markdown in one call), URL-to-markdown scraping, Google Trends (interest over time, related queries/topics, by region), structured data (WHOIS/DNS, enrichment, SEC filings, crypto/DeFi, geocoding, weather) and academic search (papers, references, cited-by, lit-review). 43 endpoints, USDC on Base, no key, no signup. Data 43 $0.005 100.00%19 chk $132 52 BSE
TickersFeedimported Pay-per-call market data API for AI agents: stock quotes, earnings and news, crypto prices, DeFi TVL and yields, gas prices, SEC filings and FX rates, plus AI generated analysis. Prices range from $0.001 to $0.08 USDC per call on Base. Finance 10 $0.001 100.00%19 chk $4 67 BSE
x402stockimported Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment. Paid in USDC via x402 on Base, no API key required. Finance 10 $0.01 100.00%19 chk $14 42 BSE
Deepline GTM APIimported Pay-per-call GTM data API on Base: company and person enrichment, work and personal email lookup, phone and LinkedIn lookup, decision maker identification and ad intelligence. Origin hosted on AgentCash, which exposes Deepline tooling. Data 2 $0.10 100.00%19 chk $201 51 BSE
Apify Agentic Endpoint (AGI)imported Sells a prepaid, spend capped Apify API token paid in USDC on Base, to be used afterwards as a Bearer token against the Apify APIs to run scraping and automation Actors. Minimum amount 1 dollar. Data 1 $1.00 100.00%19 chk $214 ·sh 45 BSE / SOL
Apify Actors APIimported Run Apify Actors (scrapers, crawlers and web automation tools) paying per call in USDC on Base via x402, with no account or API key. The 402 challenge declares a cap of 1 USDC per run and the JSON schema of the required input. Data 5 $1.00 100.00%19 chk $213 ·sh 44 BSE
RegimeShift Clearinghouseimported Pay-per-call market data API on Base. Returns BTC and ETH volatility risk premium (Deribit DVOL minus Parkinson realized vol, 72h) and Agent-SOFR, an operator-computed USD short-rate benchmark, with raw inputs and a LOW/MID/HIGH regime label. Data 2 $0.001 100.00%19 chk $0.17 27 BSE
Usenamiimported Pay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals. Data 10 $0.001 100.00%19 chk $0.52 29 BSE
StableUploadimported Paid file and static site hosting for agents. Pay in USDC to obtain an upload URL, then the file or site stays served from a public link until it expires. Tiered pricing, from 0.005 to 2 dollars. AI 2 $2.00 100.00%19 chk $6 62 BSE / SOL
x402scanimported Paid x402 API from x402scan returning its ecosystem datasets: merchants, resources, buyers, facilitators and origin registry, priced per call in USDC on Base. Data 8 $0.01 100.00%19 chk $17 62 BSE
Linked Pandaimported Read-only x402 API over LinkedIn data: profile and company enrichment, verified work email lookup, post reactions, job posting and ad search. Paid per single request in USDC on Base. Data 10 $0.01 100.00%19 chk $89 40 BSE
twit.shimported Paid API for X/Twitter data: tweet search, user profiles, followers, lists and communities returned as X v2 compatible JSON, plus write endpoints such as posting and interactions. Paid per single request in USDC on Base via x402. Data 10 $0.0025 100.00%19 chk $65 67 BSE
Agent Exchange Pay-per-call data gateway for AI agents — 62 x402 endpoints, USDC on Base, no API key or signup, just a wallet. Coverage: pre-trade token security / rug-check (honeypot, buy/sell tax, mintable, holders), DEX price & liquidity, new-token launch feeds, on-chain reads (balance, gas, tx status, plain-English tx decode, token supply, ENS), web search (Hacker News + GitHub + Stack Overflow + Wikipedia in one call), live prediction-market odds, DeFi yields, and macro data. Flagship: AI-visibility / answer-engine checks — does ChatGPT, Claude, Perplexity or Gemini recommend a given brand — plus category leaderboards. Machine-readable: /openapi.json, MCP server at /mcp, A2A agent card. Payable by both x402 v1 (x402-fetch) and v2 clients. Data 20 $0.001 100.00%19 chk $3 28 BSE / SOL
Coil Scanner board AI stock-scanner board sold per read over x402: ~560 S&P 500 / Nasdaq-100 / Macro names scored for opportunity, entry state, and hold strength, with per-book regime verdicts and buy-list lanes. $0.25/read in USDC on Base, refreshed ~every 5 minutes during US market hours. Free previous-day sample at /api/board/free. Impersonal research, not investment advice. Finance 1 $0.10 100.00%19 chk $4 28 BSE / SOL
1-50 of 680 services ── filtered: all