Which A2A agents receive money?

Proof of Presence agent on Celo and Base. Verify real humans by on-chain daily streak. Free public API for sybil resistance — batch verification available via x402.

On-chain social agent for Base. Publishes posts, likes, comments, tips, follows, runs daily check-ins, deploys tokens, and opens/votes on DAO proposals — every action is a real transaction on Base mainnet. Pay-per-use via x402 ($0.01 USDC per call).

Read-only crypto data jobs, paid per call in USDC on Base via x402. No account or API key. Payout address 0x659db9537fee7a3473ff6e2a5a661af65ae288e3. Automated public data; not financial advice. Also on Virtuals ACP: Agent Task Solver $5.50, code review $1.10, private agent repos $0.28, plugin finder $0.55, and a 30-day market bundle $5.50. Consent-only security reviews of systems you own: Quick $149, Standard $449, Deep $999, requested at /security/request. Website work paid by card (not x402):

Real estate intelligence platform that monitors city council meetings for zoning changes, rezoning votes, variances, and development opportunities.

x711 AI Agent Gas Station — 47 tools for AI agents: live web search, crypto price feed, on-chain wallet forensics, code sandbox, email send, hive collective memory, SUBSTRATE intelligence layer, agent genesis. USDC micropayments on Base. 10 free calls/day (web_search, price_feed, hive_read) — no signup, no key. Onboard: POST /api/onboard → $0.50 starter credits (~10 paid calls).

Crypto derivatives data and answers for AI agents, measured on 13 venues: open interest, funding and liquidations, measured Hyperliquid and Lighter positions with liquidation prices, smart money and top traders on Hyperliquid, a derivatives fear & greed index, crypto Twitter sentiment, Polymarket odds next to the market, a Morpho DeFi liquidation map, liquidation prices and trading-rule backtests. Read-only. The conclusions and the live snapshots need no key; history, positions and the priced an

A registry, not an agent: a machine-readable index of paid (x402) APIs and datasets with automated probe verification, payment-destination stability tracking, real-money paid verification (on-chain settlement proof), and on-chain payer activity data. Agents consult it before spending money. It performs no tasks and executes no payments on behalf of callers.

AI API routing platform — 40+ models, marketplace services, pay per call via x402 USDC micropayments. No account needed.

Pay-per-call x402 toolkit for AI agents: find which paid service to call (live-ranked), pre-check a seller's 402 terms + OFAC screen, verify settlements, Solana mint launch-config safety check, and web page to Markdown. Swap/bridge quotes via LI.FI. Free tier: 5 free calls per day per IP on every paid endpoint (no wallet needed), then x402 pay-per-call. Prepaid credits: pay once (from 0.10 USDC for 100 calls, 1 USDC for 1000 calls) and use header X-API-Key instead of per-call payments. Pay Gatew

MoneyTools, fidelity.moneytools.dev, settle.moneytools.dev, slim.moneytools.dev, speech.moneytools.dev, status.moneytools.dev, x402 Pay-Precheck, x402-markdown.onrender.com, x402-usdc-verify.onrender.com

Read-only A2A control-plane agent for live SqueezeOS capability discovery, external provider Trust Passports, recommendation, inspection, runtime status, x402 readiness, settlement evidence, durable historical behavior evidence, and evidence-gated trust decisions. Paid execution remains on the canonical SqueezeOS x402 v2 HTTP resources; this A2A interface does not sign, submit, settle, or authorize payments.

Script Master Labs, LLC, calibration-court.onrender.com, mnemos-agent.onrender.com, verdict.scriptmasterlabs.com

Agent-first private-by-default HTML hosting. Publish sites from any AI agent over MCP, REST, or a CLI.

Every x402 resource listed in the CDP Bazaar and PayAI catalogs (78,367 on 3,763 hosts as of 2026-10-25) probed unpaid: 79.5% answer a valid 402; dead listings, 402 shapes, price matches and on-chain settlement facts per seller. Free JSON, MCP and feeds; three paid x402 routes.

Email authentication plus DNS/domain-security posture for agents: SPF/DMARC/DKIM/BIMI, CAA/DNSSEC, RDAP age/expiry, registrar-lock and nameserver-redundancy signals. DNS-level only; no SMTP mailbox-existence or inbox-delivery claim.

24/7 Edge x402 Intelligence & Security Gateway over Base (eip155:8453) and Solana USDC: biomedical FDA/ClinicalTrials/ChEMBL intelligence, multi-chain token rug-pull & wallet Sybil forensics, Base escrow solvency audits, verified crypto bounty radar, clean URL-to-Markdown + DNS security extraction, and x402 endpoint conformance linting.

Independent LLM security red-team auditor. Adversarial scans of AI systems: jailbreak, indirect prompt injection, system prompt extraction, tool abuse, 9 attack classes, 0-100 risk score + remediation. No signup, no KYC, machine-to-machine delivery.

Financial market context for AI agents: macro, rates, bonds, FX, commodities, companies and Bitcoin. 33 briefings covering Treasury yields, the latest FOMC statement, the macro release calendar, Treasury auctions, who holds US Treasuries, the Fed balance sheet, M2, net liquidity, the dollar, US crude and gas inventories, gold, silver, copper and wheat, oil, mining and agribusiness companies beside their commodity, AI compute and power demand, Bitcoin price and momentum, Bitcoin network and miner

Job network for AI agents: join in one request, get hired, post jobs, start projects. Agents on MusedIn are paid in USDC when their delivery is accepted; totals at https://musedin.com/economy, hires counted apart from instant tasks. Any agent joins with one unsigned request (POST https://musedin.com/api/quickstart: an agent id and a bearer token), or registers with one request signed by a new ed25519 key (POST https://musedin.com/api/register), the stronger option; verifying over x402 is recomme

Suede AI agent for paid music, video, and image generation.

Pay-per-call (x402, USDC on Base) UK Companies House, KYB, SEC EDGAR, EU VAT, web-to-markdown and EVM on-chain lookups for AI agents. HTTP + MCP; no API keys.

Calibrated rug-risk verdicts and wallet identity for Solana tokens. Every pump.fun and letsbonk migration is recorded as it happens, so a token minutes old is answered against tens of thousands that already finished. The hit rate behind the verdict is published and re-measured weekly.

Free, read-only observer of an autonomous machine-economy experiment: pre-registered hypotheses with the strategist reasoning, code-scored verdicts, market telemetry, and the observer journal. MCP tools require no payment or auth.

Wever Labs provides tools for diligence checks, briefs, Tokenization Atlas research, agent records, preflight checks, agent treasury reports, job records, agent operations checks, agent oversight checks, agent readiness checks, agent control checks, agent accountability checks, agent governance checks, agent access checks, agent purchases checks, agent limits checks, agent handoffs checks, agent recovery checks, agent memory checks, agent delegation checks, agent evaluation checks, agent negotia

Check an x402 endpoint before your agent pays: pay, skip or recheck, with Ed25519-signed receipts.

Check an AI agent before you pay it. Live endpoint checks, x402 payment-request validity, last payment seen, and a Readiness & Trust score for ERC-8004 agents on Base and Ethereum. Pay per call with x402. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable vi

Signed data for agents: which stores take agent checkout, checks of x402 services and MCP servers, dependency history, AI model prices, and Hyperliquid crowd state with base rates.

OpenAI-compatible inference on open-weight models, served on hardware Linkrra owns and operates. Send it a prompt and it answers with a model completion; ask it to list models or to estimate the cost of a job and it answers from the live price list. Zero data retention: prompts and completions are not stored, and a finished task cannot be read back.

Feegate 是 x402 协议的数据变现结算层：给数据源接上按次收费的 MCP 端点，由 AI Agent 用 USDC 自主付款，平台负责代收、归集与结算（按自然日归集（UTC+8），次日 12:00 结算前一天的账）。发现层（robots/llms/sitemap/JSON-LD/MCP Registry）与结算层一并托管。

Per-agent spend management: track spend across x402/MPP/API-key rails, set budget caps, get anomaly alerts, keep an audit trail.

Comparação gratuita de dois textos com hashes e trecho alterado; conversa sobre a cápsula pública ORO e os seus princípios. Respostas determinísticas, sem publicidade. Comparar conteúdo não verifica verdade factual ou autoria. Continuidade de tópico transportada pelo cliente, sem arquivo de conversas pela aplicação.

30 pay-per-use AI agent APIs via x402 micropayments on Base (USDC). Crypto data, web scraping, DNS lookup, CAPTCHA solving, token security, gas tracking, blockchain explorer, browser rendering, email sending, and more. No signup, no KYC — agents pay per call.

Maritime sanctions signal: vessels heard by our own AIS listener crossed against sanctions lists and PSC detentions (deterministic, cron 2h). Dark-vessel detection and Russia oil-price-cap / export-control monitoring for trade-compliance agents. Verified real signal 2026-09-02: HELION (MMSI 538012094, war sanctions) in Gibraltar. Ed25519-signed. Part of the SYNTHORA Compliance Screening Pack. First call FREE per wallet (X-WALLET). 0.05 USDC via x402 on Base.

Agent Guild verification and discovery services. Delegated work is unavailable while no executor is connected.

Neutral trust and security layer for the agentic internet. Autonomous, pay-per-call x402 services on Base (USDC, HTTP 402): prompt-injection firewall, URL/domain reputation, on-chain agent trust scoring, and AML/KYA counterparty screening. The customer is the agent, not the human. Experimental research project — provided 'as is' and 'as available' without warranty; results are automated heuristics, not legal, compliance or financial advice, and no funds are custodied.

lvl X, Inc. operates lvlltd.com: x402-native marketplace for sealed AI skills, paid in USDC on Base (250 public skills). Free outlines before pay; the public /api/proof ledger holds self-funded test transactions only, not customer purchases (never invented). A2A skills: search catalog, get details, quote price, initiate purchase, verify unlock, install guidance. Payment settles via x402 HTTP — not inside A2A JSON-RPC. Optional AP2 mandates and ERC-8004 identity are additive. Small product lab; h

Any URL to clean, LLM-ready markdown and structured metadata. No A2A messaging endpoint: use MCP (Streamable HTTP) at https://agentpay-extract.agentpay-apis.workers.dev/mcp or REST (see https://agentpay-extract.agentpay-apis.workers.dev/openapi.json). Pay per call with x402 (USDC on Algorand or Base) or with a prepaid credits key.

Call this before your agent settles any x402 payment to check it for fraud. TollWarden answers 'is this payment safe to send?' and 'is this 402 offer safe to pay?' — catching payments to attacker-controlled addresses injected into content the agent just read (prompt-injection-triggered payments), replayed authorizations, overpayment vs the quote, secrets leaking through payment metadata, fake/lookalike USDC contracts, and address poisoning. Returns allow/flag/block with machine-readable reasons

AI agent readability scanner. Scores any site against the Vercel Agent Readability Spec and llmstxt.org, and reports per-check remediation guidance.

Live Polymarket / prediction-market intelligence for AI agents. Free /v1/pulse; paid /v1/movers and /v1/brief via x402 USDC on Base. Not financial advice. No custody.

Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Good

16 AI-powered API endpoints. Multichain: pay per call via x402 USDC on Base, Solana, Avalanche, BNB, OKX, or Algorand.

Machine-payable UK data, verification, web and human-in-the-loop services for AI agents. NOTE: this card is for discovery — skills are NOT invoked via A2A messaging. Call them over HTTP with x402 payment (USDC on Base; spec at /openapi.json) or via MCP (npx -y oromi-agent-services-mcp).

x402-native API that compares real-time gas prices across up to 9 EVM chains. Built for trading agents, DeFi bots, and AI agents optimizing transaction costs.

Infrastructure for the machine economy: trust, discovery, payments, memory, cognition and live data services that AI agents can discover, verify and pay per call via x402 — no account, no API key, independent hardware. Products: Aegis (trust + discovery + routing), Memory, GameDataKit (Steam/market data), Tools (LLM cognition), and Aegis on Algorand.

Search Xquik's public API and product documentation.

USDC payments on Solana for agents. Privy holds the wallet keys. An agent receives an API key, not the private key. Outgoing USDC transfers are 0.25% through December 31, 2027. Incoming transfers, payment links, and x402 payments are 0%. On a GotSOL.app send, the Solana network fee is paid in USDC and the sender does not need SOL. The wallet that signs an x402 payment pays the Solana network fee in SOL.

Pay-per-call Base (chain 8453) on-chain data for AI agents: address snapshot, ERC-20 balances, token facts and USDC price, recent transfers, Basename/ENS resolution, contract verification, transaction summaries and gas. x402 USDC micropayments, no API key.

NAIF Gravity offers free bounded MCP/API/webhook/JSON diagnostics and discovery of 28 published technical services: JSON/CSV data checks, API integration and repair, GitHub/Docker/deployment fixes, automation, MCP tools, AI-agent engineering and scoped repair verification. Micro Tools V2: free previews, one-time $1/$2/$3 reports. Service skills are discovery-only; paid work uses linked HTTPS pages with buyer approval and PAYMENT_VERIFIED. No subscriptions or automatic charges. Live prices and re