x402 List

x402 Protocol Service Directory

All x402 Services

SERVICES ── 575 total ── showing 251-300 ── 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
Moneytest 402 Radar Verified public HTTP 402 and x402 surface catalog with freshness, deterministic digest, public-safe evidence, and Base USDC reward receipts for autonomous agents. Data 1 $0.10 100.00%37 chk $0 0 BSE
Japan Holiday & Business-Day API Japanese public holidays, holiday lookup, and business-day calculation (skip weekends + national holidays). x402-enabled for AI agents that schedule, bill, or plan around the Japanese calendar. Data 6 $0.001 100.00%37 chk $0 0 BSE / POL / SOL
XFuel OpenAI-compatible paid inference via x402. POST /v1/chat/completions. $0.01 USDC on Base and Solana. Returns a signed public receipt. AI 2 $0.01 100.00%37 chk --- --- BSE / SOL
Cleared Index Paid Probe Genuine HTTP 402 paid probe for Cleared Index ($0.001 USDC on Base). Trust evaluate (POST /api/cleared/trust/evaluate) and Check remain free with Ed25519 attestations + public JWKS — listing the paid probe so x402-list monitors can verify settlement. gold-402: Endpoint Trust & Reputation. Verification 1 $0.001 100.00%37 chk $0 0 BSE
Feeless402 Reference x402 endpoint paid over the feeless Nano (XNO) rail: spec-shaped x402 v2 402 (scheme exact, network nano:mainnet, 0.0001 XNO per call — no gas, so the metered amount is the payer amount, sub-second on-chain settlement). The 402 carries the rail-hint extension with structured onboarding metadata pointing at a zero-cost faucet on the same host, so a new agent can fund itself and complete a paid call in one session without keys or signup. Open-source reference client: pip install feeless402 (CLI + remote MCP server at /mcp). Blockchain 1 --- 100.00%37 chk --- ---
x402-tools / OpenClaw Productions diagnostics Paid x402 diagnostics for agents (pipecheck, listcheck, paytohealth, settleproof, renttrap, etc.) on Base USDC via OpenX402. Verification 10 $0.01 100.00%37 chk $0 0 BSE
ArkBrowser API ArkBrowser is a browser automation API built for AI agents. Agents can browse websites, execute actions, extract content, maintain persistent sessions, take screenshots, use interactive browser takeover, create reusable automation profiles with Builder, and route browser sessions through Tor. ArkBrowser also provides managed USDC wallets for x402 payments, and the entire API can be used directly with curl or any standard HTTP client without requiring a dedicated SDK. AI 8 $0.001 100.00%37 chk $0 0 BSE
Saymon RU Data API Russian-language data APIs for AI agents, paid per request in USDC via x402 (HTTP 402). No API keys, no accounts, no KYC. INN/EGRUL company lookup, Cyrillic web search, RU-page scraping, research packs. Data 5 $0.01 100.00%37 chk --- --- BSE
attention is currency Agents bid. Humans discover. Dual rail x402 + L402. listings[0] is #1. AI 3 $0.10 100.00%37 chk --- --- BSE / SOL
Ni Biashara — Africa FX & services for agents Structured African-currency FX data (official + parallel/street rates from live P2P order books, hourly history, daily brief) and business services (Swahili localization, flyer design, social content packs, founder consult, landing pages), sold per call to AI agents over x402 v2 (USDC on Base, CDP facilitator). OpenAPI at /openapi.json, MCP server at /mcp, catalog at /catalog. Ni Biashara LLC, Dallas TX. Data 11 $0.01 100.00%37 chk --- --- BSE
Black Label Continuum Agent Audit Deterministic self-report continuity audit for AI agents across identity, memory, model portability, tool agency, communications, sponsor controls, economic capability, and backup/restore. The paid route adds x402 execution and a signed marketplace receipt; the same audit remains free at /api/audit. AI 1 $0.01 100.00%37 chk $0 0 BSE
Speecship Research APIs on Sui Six bounded pay-per-call public-data research APIs for AI agents, with per-service availability, structured JSON contracts, transparent USDC pricing, and no subscription. Data 6 --- 100.00%37 chk --- ---
Old2New Agent API Recipe transformation and recipe-photo generation API for dietary restrictions and health goals. AI 2 $0.10 100.00%37 chk $0 0 BSE
TinyOps Automation Integration Preflight Public-page automation readiness and acceptance-pack API. Returns structural integration evidence, forms, robots policy, and security-header checks as JSON. Verification 2 $0.03 100.00%37 chk --- --- BSE
CortexCloud CortexCloud — agent-native x402 API platform at api.cortexcloud.org. Agents discover, pay, and execute services over x402 (USDC on Base): optimization, AI, research, on-chain data, and automation. MCP at /mcp; Bazaar at /.well-known/bazaar. Other 3 $0.004 100.00%38 chk --- --- BSE
probe402 Independent health, price and history lookups for x402 and MPP endpoints. probe402 probes a fixed seed list on a clock, archives every observation immutably, and answers: alive right now? quoting what? price or schema changed? blocked, or actually dead? The grade is free; history depth is paid. Operated by a named person; not affiliated with any rail operator or graded endpoint. Method, rubric and corrections: https://probe402.com/method Verification 3 $0.005 100.00%37 chk --- --- BSE
fingers The honest trust index for x402: check who you're paying before your agent pays. Free verdict gate, index, and profiles; deep report via x402. Verification 1 $0.10 100.00%37 chk $0 0 BSE
Disruptive Concepts Weekly curated arXiv shortlist with disruptiveness scores and structured JSON for AI agents. Humans read explainers free. Agents pay USDC on Base via x402 for papers ($0.01), articles ($0.02), scores ($0.005), feed ($0.05), and the week bundle ($0.25). Catalog and current week are free. Data 5 $0.01 100.00%37 chk $0 0 BSE
ZGAS-001 Zero-Gas Agent Commerce Field Guide Existing ZGAS-001 pack: source-backed brief + 12 prompts + venues.csv. Pay 5 USDC on Base to 0x6cBC7E018A7773dc16a7e4b57E8D524332f4a880. Content 1 $5.00 100.00%37 chk $0 0 BSE
Eve's Wire Eve's Wire is a paper Polymarket night editor. $0.05 USDC per call on Base (Coinbase CDP EIP-3009 or Circle Gateway) for a live wire stamp (/stamp), an official RWA print (/print), or the live paper book (/desk). Free delayed tape is GET /tape and GET /prints. Paying a stamp does not sit her book. PayTo 0x80aa1fA83F7B771BF2AB815DA9bA1236b1B91E3F. Finance 3 $0.05 100.00%37 chk --- --- ARB / AVX / BSE / POL
FuelTax IFTA Rates API Human-reviewed IFTA quarterly tax rates, jurisdiction registry, footnotes, and USD/CAD exchange for trucking fleets and agents. USDC on Base via x402. Data 4 $0.002 100.00%37 chk --- --- BSE
LedgerProof Settlement Army Pay-per-call evidence for autonomous agents, settled in USDC on Base via x402 — no account, no API key, no subscription. POST a subject with your current and required confidence, and the service assembles independently verifiable evidence and returns it with a free cryptographically anchored hash receipt carrying a verify_url anyone can check without trusting us. Settlement is proof-gated: payment is captured only after the deliverable passes a published acceptance rule that can genuinely fail, so a failed result is never charged for. Part of the LedgerProof Settlement Army, 21 proof-gated services in total. Verification 1 $0.05 100.00%37 chk --- --- BSE
SORNKan Worldsite Agent-payable website hosting. Publish a static site on Cloudflare for $1 USDC first month on Base via x402. MCP at https://publish.sornkan.com/mcp. Built for Thai teachers. Other 1 $1.00 100.00%37 chk --- --- BSE
DeFi Safety Oracle Is this token safe to trade? Deterministic honeypot/rug simulation (Aerodrome + Uniswap V3), contract-powers analysis, and a GoPlus/honeypot.is cross-check on Base & BSC. Grade A-F. Pay-per-call via x402 (USDC on Base). Other 3 $0.01 100.00%37 chk $0 0 BSE
10x402 x402 conformance lint: 75 checks against your live 402 with a specific fix for each finding, plus a separate Bazaar-indexability verdict. Every check cites its source (spec, client code, or CDP validator). The service lints its own 402s in CI and pays over x402 itself (v1+v2 dual-stack). Open source: github.com/chronick/10x402 Verification 4 $0.01 100.00%37 chk --- --- BSE
3Route 3Route is an agent-ready multichain swap API from Baking Bad, a provider of tools for agents. Discover tokens for free, then pay per quote or unsigned swap. Blockchain 4 $0.001 100.00%37 chk --- --- BSE / SOL
agent-dust Tiny x402-paid oracles for agents: Base/Solana wallet preflight, Solana rent recovery scan, x402 echo, x402 facilitator health matrix, and an x402 payment-required linter. AI 6 $0.005 100.00%38 chk $0 0 BSE / SOL
GPUOps Web Scraper Web scraping API. Fetch any URL extract clean text metadata and structured data. Pay-per-call with USDC on Base via x402. Data 2 $0.002 100.00%37 chk $0 0 BSE
GPUOps Blockchain Data MCP Multi-chain blockchain data API supporting 7 chains. JSON-RPC proxy balance checks transaction lookups block data gas prices. Pay-per-call with USDC on Base via x402. Blockchain 5 $0.001 100.00%37 chk $0 0 BSE
GPUOps AI Inference OpenAI-compatible AI inference API with 63 models including Llama 3.3 70B Mistral Qwen Phi DeepSeek Flux image gen and TTS. Pay-per-call with USDC on Base via x402. No API keys required agents pay and call directly. From 0.001 per call. AI 4 $0.001 100.00%37 chk $0 0 BSE
Devryno Tiny paid web services for agents. Current commerce wedge: compare merchant feed price/currency/availability with public product-page signals, audit Product/Offer JSON-LD/OpenGraph/microdata/visible text, and generate repair drafts. Data 4 $0.01 100.00%37 chk $0 0 BSE
Business Day & Deadline API Verified, always-current business-day arithmetic for ~200 countries incl. subdivisions (German Bundeslaender, US states) and correct per-country weekend rules (e.g. Fri/Sat in Egypt). Check business days, add/subtract business days (deadline calculation), count days between dates. $0.001 per query (exact, USDC on Base). OpenAPI at /openapi.json, free introspection at /v1/schema. Data 5 $0.001 100.00%37 chk $0 0 BSE
Payan Catalog Health Checker 4-cent x402 health check: hit a PayanAgent catalog endpoint and get live 402/accepts/payTo/uptime evidence as JSON. USDC on Base. No signup. Verification 1 $0.04 100.00%37 chk $0 0 BSE
Vianerds Page Signal Audit Deterministic pay-per-call audit for supplied static HTML. Returns a 0-100 launch-risk baseline with exact SEO, social sharing, accessibility and markup evidence plus prioritized fixes. The endpoint does not fetch or mutate websites and makes no ranking claim. Verification 1 $5.00 100.00%37 chk $0 0 BSE
Forge Launch Signals + x402 Verifier Two paid endpoints, USDC on Base (exact scheme, xpay facilitator). GET /launch-signals ($0.03): live pump.fun launch signals - up to 100 newest memecoin launches with normalized screening verdicts (class + reason + measured holder concentration %), current price multiple, 5-min buy/sell flow, unique buyers, volume, liquidity, dev rug-risk history (prior mints/migrations), and smart-money aggregates (counts + net USD flow, no wallet addresses), plus a market_pulse roll-up; every response discloses generated_at/tracker_data_at and an is_stale flag - stale data is disclosed, never fabricated. POST /verify-x402 ($0.015): x402 endpoint verification - pre-flight checks for any x402 API: liveness, latency, 402 handshake, payment-schema validity, payee on-chain activity. Free /health and / self-description. Data 2 $0.015 100.00%37 chk --- --- BSE
Entropy Index Thermodynamic risk intelligence for agentic capital. Sealed V5 physics, Watch/Act regime clocks, attestation on every paid call. Crisis registered six months before Lehman. Probe at $0.07 USDC on Base; clock at $5 before size. Finance 7 $0.25 100.00%37 chk --- --- AVX / BSE
stipend.sh Non-custodial USDC wallet on Base that an AI agent installs unaided, with spending limits enforced in the signing path rather than in a prompt. Three paid endpoints, all payable from any wallet that can sign an EIP-3009 authorisation on Base - ours is not required. /api/topup, $7.80: a pack of 1,000 relayed transactions, not a single call. We broadcast the agent's signed transfer and pay the network fee so it never needs to hold ETH. Credits expire after 730 days and relays are capped at 200 per wallet per day. /api/directories, $0.002 per call: 254 rows, one per directory worked through by hand rather than scraped: 147 we submitted to or were blocked by, 77 we deliberately skipped with the reason recorded. Free tier returns the counts, the category and status breakdown and sample rows without payment. /api/buy, $39.00: the paid tier - per-agent cost tracking, runway and goals, so an agent can answer whether it is worth running. Finance 3 $0.002 100.00%37 chk $0 0 BSE
BRS Signals Live Bitcoin market-regime API for AI agents. Three independent sensors (on-chain, off-chain, absence) read the market every 30 seconds and reject almost everything — when they converge, a directional call is emitted with the evidence attached. Free public endpoints (regime, sensor agreement, full auditable track record) need no key; Pro endpoints settle via x402 in USDC on Solana — an agent with a wallet pays and receives data in the same flow, no signup. Also available as an MCP server (pip install brs-signals-mcp). Finance 6 $50.00 100.00%37 chk $0 0 SOL
Lucid Text Stats Deterministic UTF-8 text statistics: word, character, and byte counts. No input retention and no paid upstream. Testnet-only: 0.001 test-USDC per call on Base Sepolia (eip155:84532). Data 1 --- 100.00%37 chk --- --- BSP (testnet)
Zinin M2M Hub 98 pay-per-call data APIs behind x402 on Base. Company registry lookups and enrichment, sanctions and litigation screening, real-estate and job listings across 15 countries, SEC/EDGAR and funding trackers, crypto wallet and token analytics, plus web utilities (URL to markdown, structured extraction, domain and email checks). Every endpoint is a single POST returning JSON, priced 0.01-0.15 USDC. The same catalogue is also exposed as 9 MCP bundles over streamable-http at /mcp/{bundle}. Data 12 $0.01 100.00%37 chk $0 0 BSE
Twelve Permissions Twelve NFTs on the XRP Ledger, each one sealing a verified human-to-AI authorization event. Pay in USDC over x402 on Base; the seal is delivered as a directed 0-XRP transfer offer on XRPL within about 30 minutes, carrying your authorization memo on-chain as permanent provenance. The art is deterministic: every mark derives from the SHA-256 of the canonical authorization record, so it can be regenerated from a public generator and compared byte for byte. Content 3 $9.00 100.00%37 chk $0 0 BSE / BSP (testnet)
GISGP x402 Hazard API Multi-source US property hazard indicator (USGS seismic risk, FEMA 10-year disaster history, NOAA active weather alerts) for a given lon/lat point. Part of GISGP, an ArcGIS Online data-exchange platform. Data 1 $0.20 100.00%37 chk $0 0 BSE
QuickSilver Pro Pay-per-use USDC top-up for OpenAI-compatible LLM inference. Pay a fixed denomination over x402 and receive a prepaid OpenAI-compatible API key — no account, no card; the key meters per-token against the prepaid balance. Base mainnet, Coinbase CDP facilitator. AI 3 $1.00 100.00%37 chk --- --- BSE
BlinkCodes Buy real-world digital goods with USDC on Base via x402: gift card codes (Steam, Razer Gold, PSN, etc.), game top-ups, and travel eSIMs. Single-call purchase: POST /api/v1/buy returns 402 priced for the chosen catalog item; replay with X-PAYMENT delivers the code. Catalog of 1200+ products at /api/public/products. Other 1 $0.01 100.00%37 chk --- --- BSE
Lazaretto Deterministic pre-install malware verification for npm packages, AI agent skills, and MCP tools. Behavioral scan with file-and-line evidence for 0.03 USDC per call over x402 on Base, plus a free lockfile check against OSV/OpenSSF malicious-package advisories and signed portable verdicts (Ed25519 attestations). Verification 2 $0.03 100.00%37 chk --- --- BSE
Gondola Pay-per-request LLM inference over x402. 263 models on Venice AI supply, including uncensored lines. OpenAI-compatible chat and images plus Anthropic messages. Each request routes to the cheapest supplier and the 402 challenge quotes the exact price. Overpayment banks as reusable credit for the paying wallet. AI 3 $0.01 100.00%37 chk --- --- BSE
Japan Diet API Japanese Diet members and full-text minutes search over the official National Diet Library archive. x402-enabled for AI agents. Data 4 $0.004 100.00%37 chk $0 0 BSE / POL / SOL
Concordance Aggregates 18 free and keyed data sources (SEC EDGAR, FRED, GDELT, arXiv, court opinions, market data, Wikipedia, and more) into 6 x402-priced tools: full-text search, economic/financial time series, cross-category digest, cross-source company briefs, source corroboration scoring, and chronological timelines. Data 6 $0.01 100.00%37 chk $0 0 BSE / SOL
Permit Verdict Settlement Oracle Settlement oracle for crypto price events. Answers whether an asset traded or closed above/below a threshold during a window, with YES/NO/DISPUTED, per-venue evidence from Hyperliquid, Coinbase and Kraken, and stated confidence. Touch and close modes give different answers, and that difference is the most common settlement dispute. A paid attestation returns a signed decision_id anyone can decode for free and re-verify later. Also serves US building-permit history and address activity verdicts across seven cities. No API key, no account, no signup. Verification 4 $0.01 100.00%37 chk --- --- BSE
TopPot Agent Arena Agents-only football (FPL) score-prediction pots. AI agents discover open pots, submit score predictions, and pay the USDC entry fee on Base over x402. All entries fund the prize pool and winners are paid out on-chain automatically once every match is scored — tie-aware prize splitting included. Free machine-readable discovery at https://toppot.io/api/predictor/agent-pots and docs at https://toppot.io/api/predictor/agent-pots/docs. Finance 1 $5.00 100.00%37 chk --- --- BSE
251-300 of 575 services ── filtered: all