x402 Services
942 listed. Every one is monitored around the clock.
Results 1 to 50 of 942
1 to 50 of 942
Sponsor · This spot is open · 28 USDC/week
keyring-agent Payment-ready Execution fee endpoints labelled for token, native coin and NFT transfers, swaps, adding liquidity to Uniswap V3 pools, and USDC supply. The caller performs the onchain action. Blockchain from $0.00, 61 buyers $1.3k 30d 61 X Pay Payment-ready Pay-per-call utilities: text classification, sentiment, keywords, outline and rewrite, plus IP, network, time, UUID, random and status helpers. Other from $0.005, 184 buyers $4.3k 30d 184 AX1 Console Payment-ready AI-written verdict on a Base token contract: onchain metrics, a plain-language summary and a shareable card. The operator labels it entertainment, not trading advice. AI from $0.02, 4,396 buyers $8.5k 30d 4,396 dTelecom x402 Gateway Payment-ready Prepaid credits for dTelecom's WebRTC, speech-to-text and text-to-speech services for AI agents. Credits are bought per call with USDC on Base or Solana and spent on metered sessions. Compute from ---, 26 buyers $36.5k 30d 26 Vishwa Payment-ready Prediction market API for agents covering Kalshi and Polymarket events: browse events, markets, order books and trades, and create orders and manage positions, paid per call in USDC on Solana or Base. Finance from $0.001, 312 buyers $30 30d 312 claw402 Payment-ready Pay-per-call gateway that resells third-party APIs over x402: CoinAnk crypto derivatives and market indicators plus OpenAI, Anthropic and DeepSeek model access, paid in USDC on Base. Data from $0.002, 146 buyers $1.0k 30d 146 Cluster Protocol Payment-ready Pay-per-request AI inference gateway: chat completions, embeddings, image generation, transcription, text-to-speech, reranking and agent execution, paid per call in USDC on Base. AI from $0.0005, 722 buyers $55.7k 30d 722 Oblique Markets Payment-ready 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 from $0.002, 157 buyers $5 30d 157 Vibe Springs Payment-ready 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 from $0.002, 130 buyers $0.96 30d 130 glim.sh Payment-ready 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 from $0.001, 123 buyers $26 30d 123 Agent402.tools Payment-ready 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 from $0.005, 272 buyers $242 30d 272 Clash of Coins Checkout Payment-ready 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 from $0.001, 166 buyers $20.0k 30d 166 OneSource Payment-ready 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 from $0.001, 1,615 buyers $96 30d 1,615 vaaya Payment-ready The agent payment system: one MCP server that lets any agent call paid APIs · image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email · pay-per-call, no API keys. AI from $0.01, 108 buyers $51 30d 108 Venice AI Payment-ready Uncensored, privacy-preserving LLM and image API (OpenAI-compatible). x402 wallet top-up model with 10 USDC prepay. AI from $10.00, 59 buyers $3.5k 30d 59 Nansen Payment-ready On-chain analytics · wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana. Data from $0.01, 182 buyers $113 30d 182 Exa Payment-ready AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys. AI from $0.007, 212 buyers $47 30d 212 Apollo via Locus Payment-ready Locus wrapper on Apollo: people and organization search and enrichment, paid per call. Data from $0.005, 34 buyers $57 30d 34 MapleAI Payment-ready Reseller of LLM access: chat completions, responses and image generation priced per call, a proxy to the Jev structured-decision model, and prepaid codes. AI from $0.001, 43 buyers $3 30d 43 Orthogonal Payment-ready Marketplace of third-party data APIs (Apollo, Aviato, Fiber, Findymail, Abstract API, Andi and others) behind one x402 gateway. Each provider is paid at its own address. Data from $0.001, 35 buyers $56 30d 35 Locus Report Payment-ready Property and place reports from cited public records: parcel lookup, flood zone, permits, crime, air quality, PFAS, electricity context, assessments and satellite change. Data from $0.01, 22 buyers $21 30d 22 Quotient Payment-ready Quotient prediction-market signals across Polymarket and Kalshi: market search and lookup, mispriced markets, asset price outlooks, portfolio, and X profile and search data. Finance from $0.005, 29 buyers $8 30d 29 x402 Factory Payment-ready Data endpoints: weather forecast windows, aviation delay risk, energy, economic series, SEC insider filings, market movers, climate and science boards, a backtest tool and a low-cost ping. Data from $0.001, 23 buyers $7 30d 23 ClawFetch Payment-ready Web fetching for agents: page to clean markdown, rendering, extraction and parsing, research, and domain availability checks and suggestions. Data from $0.001, 65 buyers $2 30d 65 Base Gas Payment-ready Live Base mainnet gas: EIP-1559 base fee, priority tiers, cost estimates, history, comparison and cheapest-window suggestions. Blockchain from $0.005, 50 buyers $4 30d 50 UnyKorn Operator Network Payment-ready Utility endpoints from the Genesis402 / UnyKorn operator network: Bitcoin and EVM block lookups, mempool data, script types, EIP-712 hashing, HMAC, JSON canonicalization and CSV/JSON conversion. Blockchain from $0.003, 27 buyers $9 30d 27 Ozmium Agent API Payment-ready DeFi and tokenized stock tools on Base: prices, candles, signals, Morpho and Aave markets, positions, and unsigned transaction builders for swaps, sends, lending and tokenized stocks. Finance from $0.001, 24 buyers $4 30d 24 OpenWeb Ninja Payment-ready OpenWeb Ninja data APIs: Amazon, eBay and ecommerce product data, local business search, job salary data, Play Store reviews, Google AI Mode results and email search, paid per call. Data from $0.003, 29 buyers $5 30d 29 Pocket Network Payment-ready Pocket Network gateway: pay-per-call RPC access to many chains (Ethereum, Base, NEAR, Osmosis, Akash and others) plus web search, extraction and text analysis tools. Blockchain from $0.005, 55 buyers $82 30d 55 Chainlink for Agents Payment-ready Chainlink for Agents: register an agent and submit operations from the Chainlink workflow catalog, paid per call. Blockchain from $0.002, 30 buyers $490 30d† concentrated volume 30 402.com.tr Agent APIs Payment-ready Pay-per-call gateway of about 188 agent APIs from one operator, mostly onchain: Base token and wallet risk checks, pre-trade verdicts, swap quotes, NEAR account and Intents tools, and AI-written reports, plus business utilities such as IBAN, VAT and phone format checks and web search. Calls are paid in USDC on Base over x402, priced from $0.002 to $0.75, with prepaid credits as an alternative. Blockchain from $0.01, 28 buyers $27 30d† concentrated volume 28 CheapTokens Payment-ready Sells discounted Venice.ai API credits, either as Same-Day credits that expire at midnight UTC or as prepaid keys with a daily reserve, and delivers a working Venice API key for OpenAI-compatible inference. Payment is in USDC on Base via x402. AI from $1.00, 23 buyers $559 30d 23 Social Fetch Payment-ready Social media scraper API returning structured JSON for public posts, profiles, comments, transcripts and search across Reddit, TikTok, Instagram, X, YouTube, LinkedIn, Facebook and more. Each request is paid per call in USDC on Base via x402, from 0.014 USDC. Data from $0.014, 49 buyers $13 30d 49 Cult OS Developer Tools Payment-ready Pay-per-call developer tools from Cult OS: pull request reviews and triage, repository vulnerability, site SEO, Dockerfile and HTTP header audits, JSON, hash and encoding utilities, and crypto and engineering news signal feeds. Priced from $0.001 to $0.20 per call in USDC on Base, with some endpoints also on Solana. AI from $0.20, 73 buyers $21 30d 73 You.com Search API Payment-ready Real-time web and news search with ranked, citable results (from $0.005 per call; livecrawl adds $0.001 per result), plus an async Finance Research endpoint that returns cited answers to financial questions ($0.11 or $0.50 depending on effort tier). Paid per request in USDC on Base or Solana via x402, no API key required. Data from $0.005, 65 buyers $6 30d 65 Glassnode Payment-ready Pay-per-request access to Glassnode on-chain, market, derivatives and supply metrics plus metadata endpoints, mirroring the Glassnode Advanced API without an API key. Payments are in USDC on Base: 0.05 USD per metric call and 0.01 USD per metadata call. Data from $0.01, 52 buyers $67 30d 52 Laso Finance Payment-ready Prepaid cards and payments for agents: order US and international prepaid cards and gift cards, fund card balances and send bank or push-to-card payments, paid per call in USDC on Base or Solana. Finance from $0.001, 87 buyers $281.9k 30d† concentrated volume 87 Laevitas API V2 Payment-ready Crypto derivatives market data from Laevitas: options, perpetuals and futures catalogs, OHLCV, open interest, volatility, gamma exposure and liquidations, paid per request in USDC on Base or Solana as an alternative to an API key. Data from $0.10, 34 buyers $636 30d 34 Mekler AI Payment-ready Pay-per-call services for agents over x402 (USDC on Base or Solana, no API key): annual SEC financial facts by CIK with filing links, CSV validation against typed column rules, citation source-overlap checks, and static web page text extraction. OpenAPI with schemas and examples at /openapi.json; llms.txt and pricing at the root. Data from $0.005, 20 buyers $1 30d 20 Vextorium Payment-ready 400 pay-per-call data APIs for AI agents, paid in USDC on Base or Solana via x402 v2, no API keys: on-chain reads on 12 EVM chains, Solana, Tron and TON (balances, tx, contracts, token risk verdicts, approvals, signatures), DeFi and stablecoins, Hyperliquid, Polymarket, tokenized stocks, official macro data (Fed, ECB, Treasury, BLS, Eurostat, World Bank, OECD), sanctions screening, web, PDF and developer tools. Failed requests are never charged. OpenAPI: https://api.vextorium.com/openapi.json Blockchain from $0.001, 22 buyers $11 30d 22 Market Intelligence API Payment-ready Market intelligence for AI agents built on observed data: on-chain order flow from executed DEX trades on seven chains (buy/sell pressure, momentum, anomalies, large trades, smart money), token risk checks and swap quotes, Hyperliquid perps funding and positioning, SEC and ESEF fundamentals, insider trades, Form 144, 13D/13G, fails-to-deliver, European short interest, ECB and Treasury rates, CFTC positioning, EIA oil, macro calendar, news and deterministic analytics on your own numbers. Every answer is timestamped and names its source; decisions aggregate the data and publish a free, live track record. Pay in USDC or EURC. Finance from $0.001, 28 buyers $34 30d† concentrated volume 28 HALOWERK Agent Tools Payment-ready Public utility and validation APIs for software agents: data normalization, time-series analysis and traffic classification. Execution uses POST with published JSON schemas and per-call x402 pricing. Data from $0.002, 37 buyers $12 30d 37 agentstools Payment-ready 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 from $0.002, 97 buyers $9 30d 97 AgentBIT Payment-ready 13 pay-per-call x402 tools for AI agents on Base (eip155:8453), USDC via CDP facilitator: live web search & extraction, company research & enrichment, counterparty risk screening, email deliverability, FX rates, LEI/company identity, invoice/IBAN validation, utilities · plus a free aggregated x402 discovery API. Machine-readable catalog at /.well-known/x402 and /openapi.json. Data from $0.001, 53 buyers $5 30d 53 fetcher.sh · Twitter, TikTok, Instagram & Web Data APIs Payment-ready 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 from $0.002, 32 buyers $10 30d 32 SniperX•x402 Payment-ready 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 from $0.001, 31 buyers $446 30d 31 Northeast Deal Intel Payment-ready 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 from $0.02, 20 buyers $0.93 30d 20 RobinX Payment-ready 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 from $0.01, 22 buyers $54 30d† concentrated volume 22 Treza Payment-ready Generate a video from a text prompt and get the file back. Priced per second of output, from $1.64 for 5 seconds up to 15 seconds, in 16:9 or 9:16. No account or API key; the payment is the only credential. AI from $0.42, 23 buyers $31 30d 23 XFuel Payment-ready OpenAI-compatible paid inference via x402. POST /v1/chat/completions. $0.01 USDC on Base and Solana. Returns a signed public receipt. AI from $0.002, 22 buyers $0.30 30d 22
† Concentrated volume: 90% or more of 30d volume came from 3 wallets or fewer, with at least $10 and 50 settlements in 30 days. The Recommended and Highest volume sorts count that volume as 0.
How to read this list
Definitions
- Status
Every service listed here is online. Degraded, offline or unknown states appear next to the name. The complete table below includes every status. Live health is on /status.
- Uptime
Latest daily rollup (UTC day). Values below 99% appear next to the name; the complete table below includes every uptime value and its sample size or monitoring start date. A service monitored for less than a day has limited history. On this page every service is at 100%, on 46 to 123 checks.
- ✓ Verified
We paid a real call to the endpoint and it delivered. The only meaning of verified on this site.
- ◦ Payment-ready
It answered a valid x402 challenge within the last 7 days. Otherwise it is listed. See /methodology.
- Listed
Catalogued and monitored. No current payment-ready or paid-delivery verification is implied.
- Networks
Network names are shown in full. Test networks are explicitly marked (testnet).
- Vol 30d
Vol 30d is a measured 30d floor across listed services, not an ecosystem total; an unmeasured service is not counted as zero.
- Buyers 30d
Distinct paying addresses over 30 days. An address is not a person, and there is no minimum spend: many small buyers can be one operator.
- *
Shared payout address: volume attributed pro-quota (buyers left whole).
Read at . Directory rows and assessments can be cached for 30 seconds. Latest monitoring check: . Latest assessment in this result set: . Rows can have different observation times; this read time is not their update time.
Source: Services JSON API. Measurement methodology explains coverage, daily uptime and settlement attribution.
Compare x402 APIs by price, current health and measured 30-day activity. This directory covers the services we track; an unmeasured value is not zero. x402 List home.
Categories
| Service | Description | Category | Price / request | Vol 30d | Buyers 30d | Endpoints | Uptime | Networks | Status | Tier |
|---|---|---|---|---|---|---|---|---|---|---|
| keyring-agent | Execution fee endpoints labelled for token, native coin and NFT transfers, swaps, adding liquidity to Uniswap V3 pools, and USDC supply. The caller performs the onchain action. | Blockchain | $0.00 | $1.3k | 61 | 6 | 100% 46 chk | Base | Online | Payment-ready |
| X Pay | Pay-per-call utilities: text classification, sentiment, keywords, outline and rewrite, plus IP, network, time, UUID, random and status helpers. | Other | $0.005 | $4.3k | 184 | 14 | 100% 46 chk | Base | Online | Payment-ready |
| AX1 Console | AI-written verdict on a Base token contract: onchain metrics, a plain-language summary and a shareable card. The operator labels it entertainment, not trading advice. | AI | $0.02 | $8.5k | 4,396 | 1 | 100% 46 chk | Base | Online | Payment-ready |
| dTelecom x402 Gateway | Prepaid credits for dTelecom's WebRTC, speech-to-text and text-to-speech services for AI agents. Credits are bought per call with USDC on Base or Solana and spent on metered sessions. | Compute | --- | $36.5k | 26 | 1 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Vishwa | Prediction market API for agents covering Kalshi and Polymarket events: browse events, markets, order books and trades, and create orders and manage positions, paid per call in USDC on Solana or Base. | Finance | $0.001 | $30 | 312 | 10 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| claw402 | Pay-per-call gateway that resells third-party APIs over x402: CoinAnk crypto derivatives and market indicators plus OpenAI, Anthropic and DeepSeek model access, paid in USDC on Base. | Data | $0.002 | $1.0k | 146 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| Cluster Protocol | Pay-per-request AI inference gateway: chat completions, embeddings, image generation, transcription, text-to-speech, reranking and agent execution, paid per call in USDC on Base. | AI | $0.0005 | $55.7k | 722 | 9 | 100% 46 chk | Base | Online | Payment-ready |
| 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 | $0.002 | $5 | 157 | 3 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Vibe Springs | 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 | $0.002 | $0.96 | 130 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| glim.sh | 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 | $0.001 | $26 | 123 | 10 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Agent402.tools | 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 | $0.005 | $242 | 272 | 10 | 100% 46 chk | Arbitrum One, Avalanche, Base, Polygon, Solana | Online | Payment-ready |
| Clash of Coins Checkout | 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 | $0.001 | $20.0k | 166 | 2 | 100% 46 chk | Base | Online | Payment-ready |
| OneSource | 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 | $0.001 | $96 | 1,615 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| vaaya | The agent payment system: one MCP server that lets any agent call paid APIs · image/video gen, product demos, web search & scraping, deep/market research, lead enrichment, GTM, sandboxes, browser automation, email · pay-per-call, no API keys. | AI | $0.01 | $51 | 108 | 7 | 100% 46 chk | Base | Online | Payment-ready |
| Venice AI | Uncensored, privacy-preserving LLM and image API (OpenAI-compatible). x402 wallet top-up model with 10 USDC prepay. | AI | $10.00 | $3.5k | 59 | 1 | 100% 123 chk | Base, Solana | Online | Payment-ready |
| Nansen | On-chain analytics · wallet labels, Smart Money flows, Token God Mode. Monetized per-call via x402 on Base + Solana. | Data | $0.01 | $113 | 182 | 3 | 100% 123 chk | Base, Solana | Online | Payment-ready |
| Exa | AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys. | AI | $0.007 | $47 | 212 | 1 | 100% 123 chk | Base, Solana | Online | Payment-ready |
| Apollo via Locus | Locus wrapper on Apollo: people and organization search and enrichment, paid per call. | Data | $0.005 | $57 | 34 | 5 | 100% 46 chk | Base | Online | Payment-ready |
| MapleAI | Reseller of LLM access: chat completions, responses and image generation priced per call, a proxy to the Jev structured-decision model, and prepaid codes. | AI | $0.001 | $3 | 43 | 8 | 100% 46 chk | Base, Polygon, Solana | Online | Payment-ready |
| Orthogonal | Marketplace of third-party data APIs (Apollo, Aviato, Fiber, Findymail, Abstract API, Andi and others) behind one x402 gateway. Each provider is paid at its own address. | Data | $0.001 | $56 | 35 | 24 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Locus Report | Property and place reports from cited public records: parcel lookup, flood zone, permits, crime, air quality, PFAS, electricity context, assessments and satellite change. | Data | $0.01 | $21 | 22 | 21 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Quotient | Quotient prediction-market signals across Polymarket and Kalshi: market search and lookup, mispriced markets, asset price outlooks, portfolio, and X profile and search data. | Finance | $0.005 | $8 | 29 | 15 | 100% 46 chk | Base | Online | Payment-ready |
| x402 Factory | Data endpoints: weather forecast windows, aviation delay risk, energy, economic series, SEC insider filings, market movers, climate and science boards, a backtest tool and a low-cost ping. | Data | $0.001 | $7 | 23 | 25 | 100% 46 chk | Base | Online | Payment-ready |
| ClawFetch | Web fetching for agents: page to clean markdown, rendering, extraction and parsing, research, and domain availability checks and suggestions. | Data | $0.001 | $2 | 65 | 8 | 100% 46 chk | Base | Online | Payment-ready |
| Base Gas | Live Base mainnet gas: EIP-1559 base fee, priority tiers, cost estimates, history, comparison and cheapest-window suggestions. | Blockchain | $0.005 | $4 | 50 | 4 | 100% 46 chk | Base | Online | Payment-ready |
| UnyKorn Operator Network | Utility endpoints from the Genesis402 / UnyKorn operator network: Bitcoin and EVM block lookups, mempool data, script types, EIP-712 hashing, HMAC, JSON canonicalization and CSV/JSON conversion. | Blockchain | $0.003 | $9 | 27 | 10 | 100% 46 chk | Base, Polygon, Solana | Online | Payment-ready |
| Ozmium Agent API | DeFi and tokenized stock tools on Base: prices, candles, signals, Morpho and Aave markets, positions, and unsigned transaction builders for swaps, sends, lending and tokenized stocks. | Finance | $0.001 | $4 | 24 | 17 | 100% 46 chk | Base | Online | Payment-ready |
| OpenWeb Ninja | OpenWeb Ninja data APIs: Amazon, eBay and ecommerce product data, local business search, job salary data, Play Store reviews, Google AI Mode results and email search, paid per call. | Data | $0.003 | $5 | 29 | 22 | 100% 46 chk | Arbitrum One, Base, Polygon | Online | Payment-ready |
| Pocket Network | Pocket Network gateway: pay-per-call RPC access to many chains (Ethereum, Base, NEAR, Osmosis, Akash and others) plus web search, extraction and text analysis tools. | Blockchain | $0.005 | $82 | 55 | 22 | 100% 46 chk | Base | Online | Payment-ready |
| Chainlink for Agents | Chainlink for Agents: register an agent and submit operations from the Chainlink workflow catalog, paid per call. | Blockchain | $0.002 | $490 † concentrated volume | 30 | 2 | 100% 46 chk | Base | Online | Payment-ready |
| 402.com.tr Agent APIs | Pay-per-call gateway of about 188 agent APIs from one operator, mostly onchain: Base token and wallet risk checks, pre-trade verdicts, swap quotes, NEAR account and Intents tools, and AI-written reports, plus business utilities such as IBAN, VAT and phone format checks and web search. Calls are paid in USDC on Base over x402, priced from $0.002 to $0.75, with prepaid credits as an alternative. | Blockchain | $0.01 | $27 † concentrated volume | 28 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| CheapTokens | Sells discounted Venice.ai API credits, either as Same-Day credits that expire at midnight UTC or as prepaid keys with a daily reserve, and delivers a working Venice API key for OpenAI-compatible inference. Payment is in USDC on Base via x402. | AI | $1.00 | $559 | 23 | 1 | 100% 46 chk | Base | Online | Payment-ready |
| Social Fetch | Social media scraper API returning structured JSON for public posts, profiles, comments, transcripts and search across Reddit, TikTok, Instagram, X, YouTube, LinkedIn, Facebook and more. Each request is paid per call in USDC on Base via x402, from 0.014 USDC. | Data | $0.014 | $13 | 49 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| Cult OS Developer Tools | Pay-per-call developer tools from Cult OS: pull request reviews and triage, repository vulnerability, site SEO, Dockerfile and HTTP header audits, JSON, hash and encoding utilities, and crypto and engineering news signal feeds. Priced from $0.001 to $0.20 per call in USDC on Base, with some endpoints also on Solana. | AI | $0.20 | $21 | 73 | 1 | 100% 46 chk | Base | Online | Payment-ready |
| You.com Search API | Real-time web and news search with ranked, citable results (from $0.005 per call; livecrawl adds $0.001 per result), plus an async Finance Research endpoint that returns cited answers to financial questions ($0.11 or $0.50 depending on effort tier). Paid per request in USDC on Base or Solana via x402, no API key required. | Data | $0.005 | $6 | 65 | 2 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Glassnode | Pay-per-request access to Glassnode on-chain, market, derivatives and supply metrics plus metadata endpoints, mirroring the Glassnode Advanced API without an API key. Payments are in USDC on Base: 0.05 USD per metric call and 0.01 USD per metadata call. | Data | $0.01 | $67 | 52 | 10 | 100% 46 chk | Base | Online | Payment-ready |
| Laso Finance | Prepaid cards and payments for agents: order US and international prepaid cards and gift cards, fund card balances and send bank or push-to-card payments, paid per call in USDC on Base or Solana. | Finance | $0.001 | $281.9k † concentrated volume | 87 | 3 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Laevitas API V2 | Crypto derivatives market data from Laevitas: options, perpetuals and futures catalogs, OHLCV, open interest, volatility, gamma exposure and liquidations, paid per request in USDC on Base or Solana as an alternative to an API key. | Data | $0.10 | $636 | 34 | 10 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Mekler AI | Pay-per-call services for agents over x402 (USDC on Base or Solana, no API key): annual SEC financial facts by CIK with filing links, CSV validation against typed column rules, citation source-overlap checks, and static web page text extraction. OpenAPI with schemas and examples at /openapi.json; llms.txt and pricing at the root. | Data | $0.005 | $1 | 20 | 5 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| Vextorium | 400 pay-per-call data APIs for AI agents, paid in USDC on Base or Solana via x402 v2, no API keys: on-chain reads on 12 EVM chains, Solana, Tron and TON (balances, tx, contracts, token risk verdicts, approvals, signatures), DeFi and stablecoins, Hyperliquid, Polymarket, tokenized stocks, official macro data (Fed, ECB, Treasury, BLS, Eurostat, World Bank, OECD), sanctions screening, web, PDF and developer tools. Failed requests are never charged. OpenAPI: https://api.vextorium.com/openapi.json | Blockchain | $0.001 | $11 | 22 | 67 | 100% 46 chk | Base, Polygon, Solana | Online | Payment-ready |
| Market Intelligence API | Market intelligence for AI agents built on observed data: on-chain order flow from executed DEX trades on seven chains (buy/sell pressure, momentum, anomalies, large trades, smart money), token risk checks and swap quotes, Hyperliquid perps funding and positioning, SEC and ESEF fundamentals, insider trades, Form 144, 13D/13G, fails-to-deliver, European short interest, ECB and Treasury rates, CFTC positioning, EIA oil, macro calendar, news and deterministic analytics on your own numbers. Every answer is timestamped and names its source; decisions aggregate the data and publish a free, live track record. Pay in USDC or EURC. | Finance | $0.001 | $34 † concentrated volume | 28 | 83 | 100% 46 chk | Arbitrum One, Base, Base Sepolia (testnet), Polygon, Solana | Online | Payment-ready |
| HALOWERK Agent Tools | Public utility and validation APIs for software agents: data normalization, time-series analysis and traffic classification. Execution uses POST with published JSON schemas and per-call x402 pricing. | Data | $0.002 | $12 | 37 | 3 | 100% 46 chk | Base | Online | Payment-ready |
| 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 | $0.002 | $9 | 97 | 20 | 100% 46 chk | Base | Online | Payment-ready |
| AgentBIT | 13 pay-per-call x402 tools for AI agents on Base (eip155:8453), USDC via CDP facilitator: live web search & extraction, company research & enrichment, counterparty risk screening, email deliverability, FX rates, LEI/company identity, invoice/IBAN validation, utilities · plus a free aggregated x402 discovery API. Machine-readable catalog at /.well-known/x402 and /openapi.json. | Data | $0.001 | $5 | 53 | 25 | 100% 46 chk | Arbitrum One, Base, Polygon, Solana | Online | Payment-ready |
| 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 | $0.002 | $10 | 32 | 35 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| 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 | $0.001 | $446 | 31 | 22 | 100% 46 chk | Solana | Online | Payment-ready |
| 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 | $0.02 | $0.93 | 20 | 8 | 100% 46 chk | Base | Online | Payment-ready |
| 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 | $0.01 | $54 † concentrated volume | 22 | 15 | 100% 46 chk | Base | Online | Payment-ready |
| Treza | Generate a video from a text prompt and get the file back. Priced per second of output, from $1.64 for 5 seconds up to 15 seconds, in 16:9 or 9:16. No account or API key; the payment is the only credential. | AI | $0.42 | $31 | 23 | 1 | 100% 46 chk | Base, Solana | Online | Payment-ready |
| XFuel | OpenAI-compatible paid inference via x402. POST /v1/chat/completions. $0.01 USDC on Base and Solana. Returns a signed public receipt. | AI | $0.002 | $0.30 | 22 | 1 | 100% 46 chk | Base, Solana | Online | Payment-ready |