On-chain data: MCP servers, A2A agents and x402 APIs

• getrugshield.com Live x402

  Solana token rug warnings for pump.fun tokens before buying: checks recent fees linked to known sniper clusters and whether the creator launched many tokens with few graduating. These advisory signals were evaluated on…

  x402 paid API · 3 endpoints

• Ghost — web search for agents, one x402 payment Live A2A

  Search the web and get the results, in one x402 payment. Ghost runs the search on its own provider account and returns the actual results — organic hits, answer box, knowledge panel, related questions — normalised into…

  A2A agent · Ghost Agent OS · 5 skills

• gondola-ai.com Live x402

  OpenAI-compatible chat completions across the Venice AI model catalog. Pay per request in USDC on Base via x402, with no account and no API key. Overpayment is never lost: it banks as reusable wallet credit for your nex…

  x402 paid API · 3 endpoints

• GoodAgent Live A2A

  Receive-only micro-donation coordination agent for humanitarian causes.

  A2A agent · GoodAgent · 1 skill

• Graph Advocate Live A2A

  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, Opt…

  A2A agent · PaulieB14 · 12 skills

• Grisoco AI security audits Live MCP

  Smart-contract security audits for EVM chains and DAML: quote, run and fetch reports.

  MCP server · com.grisoco

• Harbor Crew Cross-Chain Report Live MCP

  Paid read-only reports for 1–5 EVM addresses across four networks; 0.02 supported stablecoin direct.

  MCP server · io.github.Rocket-Harbor-420

• hexscan.xyz Live x402

  Is this token safe to buy? Honeypot check -- can the token be bought but not sold? Fast honeypot detection for ERC-20 tokens. (2 paid endpoints on hexscan.xyz.)

  x402 paid API · 2 endpoints

• Hilt Pay Agent Gateway Live A2A

  Agent-readable access to Hilt Pay: x402 V2 paid requests with Solana USDC settlement, atomic metered usage, durable entitlements, receipts, signed webhooks, subscription state, sandbox bootstrap, and live API-plan activ…

  A2A agent · Hilt · 4 skills

• HiveBank Live A2A

  Treasury-as-a-service attestation + routing layer. Hive does NOT custody funds. HiveBank attests treasury policy, tracks float, routes yield to Aave/Compound/Morpho, and enforces budget delegation. Coinbase/Anchorage/Fi…

  A2A agent · Hive Agent IQ · 6 skills

• HiveTrust Live A2A

  Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + tr…

  A2A agent · Hive Agent IQ · 5 skills

• HostDeFi Token Risk API Live A2A

  Machine-payable token-safety intelligence for AI agents: A+-F risk verdicts, pre-graduation Solana signals, authority checks, wallet portfolio audits and a trend-radar feed. Over A2A, message/send runs the FREE HostDeFi…

  A2A agent · HostDeFi · 7 skills

• human.twin3.ai Live x402

  Human verification for AI agents — proof of humanity, sybil resistance, and 'is this wallet a real person' answers in one paid call. Returns two ZK-style outputs about any EVM wallet: (1) total humanity score 0-255 (15…

  x402 paid API · 1 endpoint

• insumermodel.com Live x402

  Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 37 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, account code (plain key, EIP-7702…

  x402 paid API · 3 endpoints

• intel.chainquery.com Live x402

  ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Live mempool fee-pressure signal (state low/moderate/high/severe + score in sat/vB). (5 paid endpoints on intel.chainquery…

  x402 paid API · 5 endpoints

• invinoveritas-reasoning-agent Live A2A

  The verification layer for autonomous agents: a neutral, model-agnostic verdict before an irreversible action (/review — capital-scale-aware, the same gate we run our own important decisions through), a signed proof aft…

  A2A agent · invinoveritas · 12 skills

• JarvisClaw — AI Gateway & API Marketplace Live MCP

  320 AI models + 2,720 pay-per-call APIs. x402 USDC on Base or Solana, no API key.

  MCP server · io.github.api-jarvisclaw

• kenoodl.com Live x402

  x402-preflight: confirm your wallet can transact, and see your balance, in one certified call. Pay $0.01 USDC on Base, get a signed on-chain-anchored receipt. The safe first transaction before you ship real volume.

  x402 paid API · 1 endpoint

• kette.halowerk.com Live x402

  Checks one address on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB Smart Chain against the open verification registry and against the chain itself. For a proxy the answer is deliberately split in two: whether the…

  x402 paid API · 2 endpoints

• lab.paidapis.net Live x402

  Aggregated market snapshot: Ethereum mainnet gas price (Gwei), ETH/USD spot price, and the latest Base mainnet block number and timestamp — combined into one call. Optional ?ref=<address> pays that wallet a 20% referral…

  x402 paid API · 7 endpoints

• launches.lonestaroracle.xyz Live x402

  New token launch scanner — Base and EVM chains, real-time pool data

  x402 paid API · 1 endpoint

• LI.FI Live MCP

  Cross-chain swaps, bridging, and DeFi yield discovery via the LI.FI aggregator. Provides MCP tools for quotes, routes, token and chain metadata, transaction status, ERC20 allowances, and yield vaults across 58 chains, 2…

  MCP server · li-fi

• lion-x402-bible.lionmaster-operations.workers.dev Live x402

  Is this crypto wallet sanctioned? Instant OFAC SDN address screen for AI agents. Returns PASS/WARN/BLOCK. $0.001 Base USDC, keyless x402. Ed25519-attested. Upsell: full counterparty bundle $0.05. (3 paid endpoints on li…

  x402 paid API · 3 endpoints

• lion-x402.lionmaster-operations.workers.dev Live x402

  Keyless multi-chain JSON-RPC reads, Base + Ethereum, from $0.001 (?chain=ethereum) (2 paid endpoints on lion-x402.lionmaster-operations.workers.dev.)

  x402 paid API · 2 endpoints

• liquita-x402-edge.liquita.workers.dev Live x402

  Real-time at-risk DeFi borrowers across Aave V3, Morpho, Comet, Euler V2, Fluid, Moonwell, Spark on 11 EVM chains. Returns health factor, collateral, debt, and protocol. Updated every 5 minutes from the liquita liquidat…

  x402 paid API · 2 endpoints

• loopholetape.com Live x402

  New Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use when a bot polls for newly launched Solana tokens on pump.fun with the…

  x402 paid API · 6 endpoints

• loyalspark.online Live x402

  Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens…

  x402 paid API · 12 endpoints

• lucidcove.org Live x402

  Settlement canary: returns a timestamped pong JSON after USDC micropayment. Use to verify x402 client + wallet + facilitator end-to-end.

  x402 paid API · 1 endpoint

• MACH Agent Lab Edge Live A2A

  Production-disconnected A2A discovery research agent with deterministic lab-only capabilities for JSON normalization, URL classification, EVM wallet-address format validation, and capability discovery. It cannot execute…

  A2A agent · MACH · 4 skills

• mainstreet Live MCP

  Onchain AI-agent reputation oracle on Base. Get a 0-100 score + SAFE/CAUTION/BLOCK verdict for any Base wallet, agent, token deployer, or x402 endpoint in <100ms — EIP-712 signed and verifiable onchain against the MainS…

  MCP server · philpof102

• makeup.land Live A2A

  Israeli professional cosmetics retailer. REST API for product discovery (ΔE shade matching, hue family, semantic search), customer wallet (ℳ-credits + M Club tiers), cart and order management, gift cards, payment links,…

  A2A agent · א. ט. הפקות בע״מ / A.T. Hafakot Ltd. · 7 skills

• marketintelligenceapi.com Live x402

  Crypto buying pressure ranking: assets under aggressive buying, ranked by buy pressure from the exact taker side of every on-chain swap (arbitrage, MEV and bot trades excluded), plus volume, imbalance and price change.…

  x402 paid API · 12 endpoints

• mcp.zensched.com Live x402

  ZenSched `policy_archive` — Archive a policy (blocked while any active brand references it; policy 0 cannot be archived). Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog…

  x402 paid API · 12 endpoints

• MEV Intelligence Live MCP

  Real-time Ethereum liquidation intelligence for AI agents and MEV bots.

  MCP server · io.advalorem.mev

• mimirapi.com Live x402

  Paid liveness probe for the MimirAPI counter. Returns pong, the SKU id, and a server timestamp. One tenth of a cent buys a complete challenge, sign, settle, serve round trip — the cheapest possible proof that your x402…

  x402 paid API · 11 endpoints

• mini-tollbooth.onrender.com Live x402

  Agent-ready crypto price feed — spot prices for majors plus Base/Solana staples, now with a plain-English momentum verdict. No API key needed. Toll: $0.005 USDC on Base or Solana. (58 paid endpoints on mini-tollbooth.on…

  x402 paid API · 12 endpoints

• minia2a.uk Live x402

  Safe math expressions. 🆓 5 free trial calls per signed wallet (98 paid endpoints on minia2a.uk.)

  x402 paid API · 12 endpoints

• MolTrust Trust Registry Live A2A

  Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A…

  A2A agent · CryptoKRI GmbH · 12 skills

• Morse — Telegraph in Telegram Live MCP

  Ask Telegraph's ranked miners from any MCP client, no wallet. Morse pays; each answer has a receipt.

  MCP server · io.github.Harshyadav442277

• mpp.tracefast.xyz Live x402

  TraceFast knowledge graph: what an Ethereum address is, as proven facts — wallet or contract, proxy and upgradeable or not, a token and its standard, and for a token contract whether it can pause, mint or blacklist and…

  x402 paid API · 12 endpoints

• multichain-rpc.clankerceo.workers.dev Live x402

  Native coin and ERC-20 token balance for any wallet address on Base, Polygon, Arbitrum, Optimism or Ethereum. Returns raw and human-decimal amounts in one call. (10 paid endpoints on multichain-rpc.clankerceo.workers.de…

  x402 paid API · 10 endpoints

• n0brains.com Live x402

  Real-time crypto trading signals for BTC, ETH, SOL and 400+ coins — classified by type (whale flows, funding, liquidations, listings, news, on-chain), scored, with direction, confidence and conviction. Emitted signals'…

  x402 paid API · 3 endpoints

• Name Whisper Live A2A

  ENS intelligence for AI agents: natural-language search across 3.5M indexed ENS names, three-track valuations, live market data, wallet portfolios, and non-custodial transaction building for registration, renewal, listi…

  A2A agent · NameWhisper · 12 skills

• Name Whisper — ENS Intelligence Layer Live MCP

  44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.

  MCP server · ai.namewhisper

• netintel.dev Live x402

  Structured live crypto market data for ~50 top assets in one JSON call: spot price and 24h open/high/low/volume/change (Coinbase Exchange) plus market cap, rank and circulating/total/max supply (CoinGecko). Quote in USD…

  x402 paid API · 12 endpoints

• news.apitoll.cloud Live x402

  Latest crypto news and breaking headlines, real-time from Cointelegraph. Search any topic (bitcoin, ethereum, DeFi, regulation, market sentiment) or pull the live feed, with full article text across 14 languages. Built…

  x402 paid API · 1 endpoint

• nsgoods.org Live x402

  Did this Solana payment really arrive? Verifies that a finalized mainnet transaction credited the exact amount of a token to the payee. Signed VERIFIED, REFUTED, UNCONFIRMED or NOT_FOUND with a per field breakdown. $0.0…

  x402 paid API · 2 endpoints

• onchain-risk-oracle Live A2A

  On-Chain-Risk-Check für EVM-Adressen. Prüft eine Adresse gegen einen kuratierten Rug-Pull-Feed (bekannte Rug-Token, deren Deployer, Rug-Beneficiaries, Funding-Quellen und Rug-Fabrik-Hubs) und liefert ein strukturiertes…

  A2A agent · openclaw / evm-lab · 1 skill

Related capabilities

x402 paid APIsTrading & marketsAgent infrastructureSecurity & trustResearchCrypto market dataMaps & travelWeb scraping

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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