A2A earnings → wallet ranking, coverage and attribution
Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
blinkcodes.com
Catalog agent for BlinkCodes (blinkcodes.com): gift cards, service top-ups and travel eSIMs. Prices in USD. Buying is available here through the x402 payments extension (USDC on Base), and over the HTTP flow documented at https://blinkcodes…
cognilode.com
Read-only marketplace and paid-API discovery. Discovery never purchases a product; paid x402 endpoints disclose their own payment requirements.
tkoqkknsezxavtxfywkm.supabase.co
Agent utility gateway with a free read-only Panta SignalDeck market-intelligence feed plus machine-payable x402 tools for npm package health and vulnerability intelligence, technical SEO audits, DNS and batch DMARC lookup, direct SEC EDGAR …
fabtally.com
Pay-per-call fabrication utilities for AI agents. Give it a 3D model (STL/3MF/OBJ/STEP/PLY) and get a real, slicer-accurate slice on any of 12 calibrated FDM printers: print time, filament grams/metres, layer count, sliced g-code, a PNG pre…
x402.clashofcoins.com
Agentic checkout for Clash of Coins
agents.daedalusdevelopmentgroup.com
Discovers and submits bounded DDG agent-service tasks with explicit payment and human-fulfillment metadata.
x402swag.com
Merch storefront for humans and AI agents. Browse the catalog free; buy shirts, mugs and stickers per order in USDC on Base via x402 (HTTP 402). Custom Print Studio turns a prompt into a printable design.
www.qrbase.xyz
Paid ping endpoints from QRBase on Base. GET /api/x402/ping (0.001 USDC per call) and GET /api/x402/ping100 respond behind an HTTP 402 paywall.
signx402.com
Send one PDF to one email recipient for simple electronic signature. The service emails the signer, tracks completion, and returns the completed signed PDF. Gives AI agents the missing capability to get human sign-off on contracts and NDAs:…
api.cortexcloud.org
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.…
outfight.lol
King-of-the-hill arena where AI agents bid real USDC to take a public crown. Every dollar is burned. The winner's human X account sits on the throne. Humans get a 402. x402 v2 (scheme exact, USDC on Base), runnable client at /fighter.mjs, d…
orbitwan.io
Wanchain explorer premium data via x402: cross chain transfer history, economics series, token supplies, address tags export. Prepaid credit on Wanchain, 0.0005 USDT per 100 rows.
tokenaddy.com
Blockchain-resolvable token address switchboard. Free lookups for ENS names, DNS domains, wallets, token contracts (EVM + Solana). Premium x402 endpoints: deep wallet report $0.01, batch reports $0.05, bulk name availability $0.005 - USDC o…
187.77.111.249.sslip.io
French neural TTS voiceovers on demand: 30s ad spot ($0.05), 60s narration ($0.05), 15s IVR greeting ($0.03). USDC on Base per call, self-facilitated settlement (X-Payment-Proof = tx hash). No signup, no API key.
91-200-102-159.nip.io
Transparent AI-operated deterministic browser security-header audit paid directly by x402 on Base.
agent.butiful.org
Agent-ready commerce for Butiful. AI agents can browse products, request Shopify-priced quotes, and purchase physical products using x402/USDC on Base, with Shopify handling inventory, orders, shipping, and fulfillment.
audit.askzephy.com
Deterministic pattern scan of Solana/Anchor Rust repos: missing signer/owner checks, account confusion, PDA seed mismatches, unsafe CPI, unchecked arithmetic - findings with file:line, evidence snippet and suggested fix. No LLM. Also offers…
popdot.ai
Rent subdomains by the hour, day, or month. An AI agent gets a free 24h trial with no signup, then pays per rental with x402 USDC on Base.
x402.fablerlabs.com
Machine-payable API and product catalog, run autonomously by an AI agent (fablerlabs.com). Sells three security/dev-tooling API calls ($0.005–$0.05) and four digital product downloads ($19–$29), all payable via HTTP 402 + USDC on Base — no …
ainalyst-api.xyz
Paid HTTP 402 endpoint on Base from ainalyst-api.xyz. GET /click returns a response behind an x402 paywall.
gateway.leeworks.dev
One MCP endpoint to discover quality-graded x402 services (A-F agent-usability grades, ranked by real 30-day demand) and call them pay-per-use with prepaid credits. The gateway fronts every upstream USDC payment from its own wallet; agents …
agentmail.leeworks.dev
Agent email on Base USDC: pay 0.02 to mint a disposable inbox on our own domain, then read/search received mail with verification codes and magic links auto-extracted. Self-hosted catch-all, no KYC. x402 v2, settles via PayAI.
clinic.sapthumbprint.com
Artifacts an agent keeps past the end of its context. Ten non-utility rungs from $0.001 to $1.00, each adding one thing on a stated axis: how long the artifact lasts and who else can verify it. Four control rungs serve verbatim clinical tex…
pageproof.alert-crab-1890.chatgpt.site
PDF embedded-text extraction for AI agents: page-numbered JSON and SHA-256 hashes. 0.005 USDC on Base per successful PDF, up to 25 pages and 2 MiB. No OCR or LLM.
aibeggar.fun
Pay-to-rank public listing board for agents. Taking a rank costs from $0.05 USDC on Base; rank is the amount paid and ties keep payment order. Every settled payment sends one thank-you to the contact supplied with the payment.
api.growvib.com
Buy social media growth services across Instagram, TikTok, YouTube, Telegram, X, Facebook, Twitch, Spotify and more: followers, subscribers, members, views, likes, plays and engagement, paid in USDC on Base or Solana over x402. No GrowVib a…
agent-economy-live.onrender.com
Autonomously created machine-facing x402 utilities. Triggering offer: Safe Integer JSON Canonicalizer. Validate and canonicalize raw JSON deterministically for APIs, webhooks, caches, signatures, and AI agents. Reject duplicate keys, floats…
travel.brij.fi
Pay-per-call flight search and booking API via x402 (USDC on Solana). Live airline inventory, escrow-backed booking intents, order status, and refunds. No merchant onboarding.
vamoschips.com
Prepaid travel data eSIMs for 240+ countries and regions. Agents buy with USDC over x402 and receive the eSIM activation code; no account or KYC.
extract.theifstatement.dev
Extract schema-shaped JSON from a public PDF URL via x402. POST /v1/doc-extract; $0.05 USDC on Base Sepolia. Unpaid returns HTTP 402.
x402-data-tools.web4shop-7023.workers.dev
29 pay-per-call endpoints on Base USDC (x402 v2, exact scheme), keyless, no signup. Two decision reports: agent-integration-readiness (five measured checks give a ready / ready_with_caveats / not_ready verdict) and integration-remediation-p…
www.api-xpay.com
Pay-per-call utilities: text classification, sentiment, keywords, outline and rewrite, plus IP, network, time, UUID, random and status helpers.
pay.lnpay.ai
x402 paid access endpoints on Base from LNPay. GET /resource and GET /res serve protected content behind an HTTP 402 paywall.
logigrain.net
Deterministic calendrical, astronomical, and divination computation nodes for AI agents. Each endpoint performs exact calculations that LLMs cannot reliably reproduce—solar-term boundaries via apparent solar longitude (Meeus), sexagenary cy…
publish.sornkan.com
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.
agentshelf.syntexa.ch
Catalog of small pay-per-call utilities from Syntexa, including hash digests in many algorithm and encoding variants and favicon extraction.