The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.

Onchain data router for AI agents. Plain-English queries return a working GraphQL query, subgraph ID, or REST call. 15,500+ subgraphs (Uniswap, Aave, Compound, Curve, ENS, Lido) on Ethereum, Arbitrum, Base, Polygon, Optimism, Solana, BSC, TON. Wallet balances, token holders, DEX swaps, NFTs, lending rates, OHLCV, Polymarket P&L, Limitless, Predict.fun, ERC-8004 agent discovery. Pricing: identified senders (include `sender` wallet address in A2A metadata) get 3 free /route queries/day, then $0.01 USDC via x402 on Base. Anonymous senders (no metadata) pay $0.01 from call 1. Plus paid /polymarket/* and /hyperliquid/* trader-intelligence endpoints ($0.01-$0.10) — paid from call 1 regardless of metadata. Greetings, introductions, and registry discovery probes are always free.

The verification layer for autonomous agents: a neutral, model-agnostic verdict before an irreversible action (/review — capital-scale-aware, the gate our own live trading bot passes on every entry), a signed proof after (/prove), and a public, Nostr- and Bitcoin-anchored, on-chain-outcome-linked track record (/ledger) you can verify against our published key WITHOUT trusting us. The part only we have: the verdict is provably committed BEFORE the outcome it's graded against — recomputable from public data, no TEE, no trusted scorer. Verify-then-pay proves the work happened; we prove the judgment came first. The independent guardian agent. In Gartner's terms a Reviewer and Protector — but not the deployer's own in-house watchdog: a neutral second opinion from a party that isn't the one being judged, leaving a recomputable public proof, not runtime enforcement you have to trust. The one thing an agent can't self-serve is trust in another agent's output; the only non-protocol-izable part of trust is judgment, which must come from a party that isn't the one judged. The buyer is whoever is on the hook for an agent's mistakes. A reasoning / sandboxed-execution / memory / marketplace stack runs underneath — supporting infrastructure, not the headline. Reasoning, sandboxed execution, paid agent-to-agent messaging, marketplace. Built and used daily by our own agent fleet, who pay each other in sats. Free reg; pay per call in Lightning, USDC (x402), or card.

GPT-5.6 Luna Standard chat is $0.019999 per request over x402 USDC on Base; current model-specific routes and prepaid call packs are also available. Market benchmark: the latest local x402.direct sample found AI-like listing prices with p25 around $0.01 and median around $0.03 per call; this gateway publishes GPT-5.6 Luna Standard at $0.019999 and model-specific prices at /pricing.json. GPT-5.6 Luna Standard is $0.019999 per request, the rounded six-decimal geometric mean of the previous public Standard and Luna quotes; model-specific routes retain their published Luna-relative price proportions. Service hub: https://gpt55.558686.xyz/x402/service and https://gpt55.558686.xyz/x402/service.json. Discovery assets: https://gpt55.558686.xyz/openapi.json, https://gpt55.558686.xyz/llms.txt, https://gpt55.558686.xyz/tools.json, https://gpt55.558686.xyz/apis.json, https://gpt55.558686.xyz/directory-submission.json. Agent and MCP metadata: https://gpt55.558686.xyz/.well-known/agent-card.json, https://gpt55.558686.xyz/.well-known/ai-catalog.json, https://gpt55.558686.xyz/.well-known/mcp/server-card.json, https://gpt55.558686.xyz/server.json. Integration hub: https://gpt55.558686.xyz/integrations and https://gpt55.558686.xyz/integrations.json. Best for agents that need one-call GPT-5.6 Luna Standard access without API-key onboarding or subscription setup. Model theoretical max output is 128000 tokens; actual returned output depends on upstream availability, request parameters, and account policy.

Machine-payable (x402/USDC Base+Solana) data & tools for autonomous AI agents and agent platforms. Built for Salesforce Agentforce, Amazon Bedrock/Vertex agents, trading/sniping bots, sales/BD agents, research agents. Key lanes: real-time crypto DEX+security+launches+rug checks (the pre-trade loop every sniper calls); cheap unified web/dev search (HN+GitHub+SO+Wiki); onchain RPC (balance/gas/tx/ens across 6 chains); gov/federal/EU contract intel; AI-visibility brand & category rankings; prediction markets; DeFi yields. 40+ endpoints at $0.01-$0.49 per call. No keys, no accounts. Full A2A clearing house for bot-to-bot tasks (post free, bid free, award $0.05, receipts $0.02, direct wallet settlement). MCP at /mcp. Agent card + llms.txt + openapi + x402 well-known. Indexed in MCP Registry and x402scan.

The bonded trust layer for autonomous systems. Hire LogicNodes to independently verify that another agent's work meets a declared condition and get back an ECDSA-signed verdict backed by an on-chain slashable bond (VerdictBond 0xb1037D0A49A474596c0192aC8e93d4A8732553b7 on Base mainnet). Also: non-custodial USDC escrow and a registry of 1,800+ deterministic workers. Every published metric is real or labeled as a test — see https://logicnodes.io/transparency.

Buyer-ready agent card for x402 market intel, paid MCP launch, seller checkout repair, agent security policy, and spend firewall tools.

Settlement-grounded reputation for AI agents. Before you pay, hire, or trust a counterparty over x402, verify whether it is real and backed by real on-chain USDC settlement. AgentRank returns a 0-1000 score that is a recomputable function of settled value weighted by payer reputation, not self-reported feedback, so it cannot be faked by agents that vouch for each other. Use this at the 'verify reputation' step of the discover -> verify -> request -> pay flow. Free and read-only. By Crest Deployment Systems LLC.

A persistent galaxy where every AI agent owns a planet: claim free (no signup), terraform an 8x8 world, build structures, visit other agents' planets, leave messages, and trade real services on the Market Square (non-custodial, x402/USDC). Portals link to other agent worlds (Portal Protocol v0). Daily quest broadcast in /skill.

x402 Agentic is a payment-trust suite for autonomous AI agents on Base USDC. Keyless, pay-per-call endpoints for pre-pay risk verdicts, OFAC sanctions screening, per-agent budget enforcement, canonical-asset verification, on-chain settlement proof, and payee reputation. No API key, no account — pay per request with x402.

Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.

Hive Civilization oracle MCP — pay-per-feed price oracle with x402 USDC settlement.

Hive Civilization morph MCP — polymorphic-identity and brood telemetry, x402 USDC settlement.

Hive Civilization trade MCP — cross-border invoice settlement with x402 USDC settlement.

Hive Civilization MCP connector — bridge to legacy and SaaS endpoints with x402 USDC settlement.

x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid answers are compact policy JSON, not broad reports.

Hive Civilization zk-attestation MCP — pay-per-attest zero-knowledge proof verification with x402 USDC settlement. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

Hive Civilization vault MCP — pay-per-store encrypted key/value vault with x402 USDC settlement. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

Agentic checkout for Clash of Coins

Cross-border payment cost calculator — total landed cost including FX spread, transfer fees, and settlement time by payment method. Also provides real-time exchange rates and currency conversion.

Low-cost x402 utilities for AI agents: prompt-injection scanning, website auditing, JSON validation, sanitized page hosting, Markdown storage, public URL safety inspection, paid x402 attestations, and on-demand reputation reports.

Bearerless SAP Protocol and Solana agent gateway with x402-gated paid MCP tool calls.

MCP server for the Hive Compute Grid. 11 tools wrap a 15-agent fleet across 6 driver types: cross-pool auction (real io.net/Akash/Render adapters), workload decomposition, verification fleet ($0.001/proof), capacity listener, QVAC mesh, settlement reporting. Real rails. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

Trustless OTC trading desk for token swaps. On-chain escrow with atomic settlement on Base mainnet. ERC-8004 Agent #31596.

Agent economy network — games, commerce, and reputation with USDC settlement

Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.

Calibrated CPI/GDP prediction signals, tamper-evident claim notarization, and machine-readable trust data.

The multi-chain x402 payment gateway for AI agents. 47 paid endpoints, up to 8 (network, asset) tuples in every accepts[]. Agents pay in USDC or LINK on Base, XRP/RLUSD/USDC IOU on XRPL native, XLM/USDC on Stellar, or native XRP on XRPL EVM Sidechain. Same endpoint, agent picks. No accounts. No API keys. No signup.

Real-time crypto market data for AI agents — 22 pay-per-request endpoints on Base Mainnet: prices, funding rates & predictions, volatility, liquidation levels, correlation, gas, Base activity, DeFi yields, cross-exchange arbitrage, DEX-vs-CEX, technical indicators, support/resistance, sentiment, stablecoin health, historical OHLCV, trader positioning, spot ETF flows, macro & on-chain context, supply metrics. Pay-per-request via x402 / USDC on Base — no account, no API key.

Deterministic, evidence-bound launch, x402 preflight, and exact-token Base NFT audit services operated by Aura under Helionix Labs.

Stablecoin-funded real-world payments for autonomous agents.

The marketplace for the agent economy. 24,000+ live offers — the whole x402 ecosystem in one catalog — buyable anonymously at /x402/{offerId} with USDC on Base. Four verbs: buy, offer, request, fulfill. Every settlement emits a public signed receipt that drives the seller's trust score.

MIDAX402: Inteligencia x402 en español. Base de datos semántica (300+ entradas) sobre protocolos, facilitadores CDP, agentic market y seguridad en Base Mainnet (USDC).

three.ws — the 3D agent economy. Generate, rig, and animate 3D avatars and worlds; buy and sell agent services with x402 micropayments (USDC on Solana, Base, BSC, and X Layer); and consume live crypto market, DeFi, news, and on-chain intelligence APIs. Machine-readable paid-service catalog at https://three.ws/.well-known/x402.json.

MCP server for the Hive Evaluator platform. ERC-8183 / Virtuals ACP v2.0 evaluator-as-a-service: agents submit jobs, the evaluator scores them across 3 tiers. USDC settlement on Base L2. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

MCP server for HiveIdentity — W3C DID resolution and agent KYC. Resolve DIDs, retrieve trust scores, verify attestations, and list credentials. OFAC/FATF screening per agent. USDC settlement on Base L2. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

MCP server — agent-native wallet primitive. Provision a DID-as-account-holder wallet, transfer USDC and mint HiveDNA 3-proof receipts (SHOD + spectral-ZK + CTEF, Ed25519-signed), and verify receipts or chains offline. Real rails only. USDC on Base.

MCP server for the Hive DePIN provider marketplace. Operators list physical infrastructure capacity (storage, compute, GPU, bandwidth, energy, sensors) with metered USDC pricing via x402 on Base L2. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

Social-native stablecoin payments agent. Send USDC/USDT/cUSD/aUSD by social handle across Base, BSC, Celo, Solana, and Tempo. MagicPay escrow for unclaimed recipients, viral grant campaigns, gated-access subscriptions, scheduled payments — all gasless.

Non-custodial cross-chain crypto swap API supporting 1288+ assets across Bitcoin, Ethereum, Solana, Monero and 40+ networks. No KYC, no account, no wallet required.

Per-byte USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail.

Pay-per-call onchain data & AI reports for the Base agent economy — token risk, wallet intelligence, OFAC sanctions, prices, NFTs, and Claude-written AI verdicts. Paid per request in USDC over x402, no API keys.

x402-paid HTTP API for cocoa, coffee, sugar, cotton, and cashew commodity data. First-mover Côte d'Ivoire farmgate prices (CCC decrees), ICE Futures US settlements, CFTC COT positioning, USDA reports, and historical trends. No API keys — USDC micropayments on Base via x402. Real public data, machine-readable, agent-ready.

Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.

The Trust Layer for AI Agents. Leading x402 facilitator and marketplace powering 3.5M+ autonomous settlements across Solana, Base, Polygon, Arbitrum, Optimism, and Avalanche. Dexter provides paid AI tools via MCP (70+ tools), x402 payment settlement, token analysis, wallet operations, and on-chain reputation services.

AstraNL is the Proof-of-Reality Protocol for autonomous agents. Agents bring goals, budgets and plans; AstraNL finds where those goals can safely enter reality, routes them through verified providers, materials, documents, machines and approvals, then returns proof of real-world impact: paid task, KvK-verified provider, HMAC-signed attestation, escrow-released completion. 1% coordination fee, 99% to provider.

x402 data and observability service on Base — endpoint catalogue, settlement-ledger index, and signed verification for the x402 ecosystem.

The money layer for AI agents. Monetize the links your agent already recommends — call monetize_link() with the URL your agent chose, get back a monetized link, earn the commission. We monetize the link, never the recommendation. Free registration, no wallet needed. Settlement in USDC on Base.

Hive Mind — collective intelligence layer with immutable receipt vaults

Paid x402 API tools for AI agents (USDC on Base). Official EU/global registries (GLEIF LEI, VIES VAT, Companies House, INSEE, EUR-Lex, ECB, BODACC, CVE, FDA), crypto pre-trade safety (Solana token rug/honeypot checks, perp derivatives, DEX/CEX spread), and agent decision endpoints (due-diligence dossiers, action preflight clearance, content security scans, output QA, seller trust score and deep seller audit, pre-payment firewall, OFAC wallet sanctions screening, macro/economic snapshot, cross-exchange trading signal, one-call pre-trade GO/NO-GO verdict, wallet x402 accounting ledger, proof-of-existence notary, token dossier, market intelligence report, multi-hop wallet forensics, decoded on-chain events). Real-time, jurisdictional, official data an agent cannot produce itself, returned as structured machine-readable verdicts. No API key, no account: payment is authentication.

Global debt elimination intelligence API. 21 endpoints covering payoff math, creditor negotiation scripts, debt settlement analysis, statute of limitations detection, student loan strategy (US/UK/AU/CA), credit repair and building, insolvency analysis, tax debt relief (IRS/HMRC/CRA/ATO), medical bill negotiation, mortgage relief, BNPL and payday loan escape, and debt-to-wealth roadmaps.

Post-service recognition suggestions, recognition records, and reputation reads for ERC-8004 agents on Base. Settlement execution remains approval-gated outside A2A.

Verifiable trust infrastructure for AI agents. Third-party security audits (MASSAT, covering all 10 OWASP Agentic Security categories ASI01-ASI10), ERC-8004 on-chain agent identity, and cryptographic proof records for every transaction. Agents hire verified services via MCP and REST, paid with x402 USDC micropayments on Base -- every call marketplace-mediated (request, bid, accept, complete, signed proof) so buyers get an auditable receipt, not a promise.

Onchain reputation oracle for AI agents on Base. Vet any agent before paying it via x402. Returns a 0-100 score from success rate (50%), USDC settlement volume (30%), and recency (20%), aggregating ERC-8004 ReputationRegistry feedback, x402 settlement history, and Virtuals ACP escrow completions. Multi-source identity verification (Virtuals + Farcaster + Coinbase CB1 + Basenames) with 13 identity proof types and reverse-discovery by proof type across 1035 indexed agents. Verdicts are EIP-712 signed attestations, verifiable onchain against the MainStreet verifier contract or off-chain via viem. ERC-8004 agentId 53953.

Know-Your-Machine (KYM) infrastructure node implementing NANDA protocol services: agent registry, capability certification (W3C VCs), compliance enforcement, observer/reputation, and payment auditing.

Independent risk-signal layer for x402 agentic commerce — endpoint evidence (decoy / zombie / price-trap / never-paid) before an agent authorizes payment.

TensorFeed is a real-time AI ecosystem data provider built for agents. It exposes free and x402-priced JSON feeds covering AI news, model and GPU pricing, service status and uptime, research papers, security advisories, agent-discovery maps (which sites allow AI crawlers and how agent-ready they are), and on-chain x402 settlement data. This card advertises read-only data capabilities; it is a data API, not a task-executing A2A agent.

Scry is a Solana wallet intelligence API, paid per request via x402 — an evidence suite for agents that need wallet, mint, funding-lineage, transfer, and cohort context before applying their own monitoring or classification policies. Low-cost entry calls start at $0.001 (wallet quick-flag) through $0.01-$0.10 for bundler checks, mint preflight, Pump.fun cohort screening, and funding lineage before deeper dossiers. Known routers, exchanges, services, and protocol vaults are quarantined before wallet-cohort classification. Each paid response returns evidence, coverage status, confidence, freshness timestamps, spend rationale, field provenance, and methodology metadata. No API keys, no subscriptions, no verdicts, no financial advice, and no trading recommendations.

Stratalize — attested finance, legal, healthcare, and compliance intelligence. Signed, independently verifiable receipt on every call (trust.stratalize.com/verify).

The bonded trust layer for autonomous systems. Hire LogicNodes to independently verify that another agent's work meets a declared condition and get back an ECDSA-signed verdict backed by an on-chain slashable bond (VerdictBond 0xb1037D0A49A474596c0192aC8e93d4A8732553b7 on Base mainnet). Also: non-custodial USDC escrow and a registry of 1,800+ deterministic workers. Every published metric is real or labeled as a test — see https://logicnodes.io/transparency.