Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
- Projects
- 4.4K
- Paid endpoints
- 87K
- Paid calls · 30 days
- 885K
- Launched here
- 0
Crypto & DeFi
1,108 results- KKeylessCrypto & DeFi
LLM chat completion with no API key or signup (fast open model, meta-llama/llama-3.3-70b-instruct). OpenAI-compatible: set your SDK base URL to https://keyless-theta.vercel.app/fast/v1. Flat $0.002 per call, up to 1500 output tokens. Charged only on success.
Basekeyless-theta.vercel.appfrom $0.0023 endpoints - Ggetbits.netCrypto & DeFi
Japanese crypto exchange listing and delisting events as English JSON.
Basegetbits.netfrom $0.021 endpoint
XR-FlowsCrypto & DeFiXR-Flows per-ETF deep dive
xrplBaseflows.xrpl-utilities.io—1 endpoint- Eenso-signal-api-v2.vercel.appCrypto & DeFi
Live ENSO (El Nino/La Nina) status, strength, trend, empirical persistence odds, and sector impact scores (agriculture, supply chain, insurance, energy), synthesized from NOAA CPC RONI/ONI records
Baseenso-signal-api-v2.vercel.appfrom $0.021 endpoint - Ccontract-guardCrypto & DeFi
Risk check for an EVM contract/token address
Baseeltociear-contract-guard.hf.spacefrom $0.0051 endpoint - RReverse DNS lookupCrypto & DeFi
Reverse-resolve an IPv4 or IPv6 address to its PTR hostname(s). No PTR record returns an empty list. This is reverse DNS (PTR) — not ENS or onchain name resolution.
Basedns.openverbs.comfrom $0.0062 endpoints - RrugcheckCrypto & DeFi
Token safety scanner for Base (JSON body): 0-100 safety score, risk band, and red flags for any Base token contract.
Basecf-rugcheck.odemakindeezekiel5.workers.devfrom $0.021 endpoint - Ccall402.comCrypto & DeFi
Look up a Base wallet address: native ETH plus balances for a curated list of 195 tokens, read directly from Base chain state via public RPC with a self-hosted reader (no third-party data API). The response includes a coverage field: tokens outside the list with no transfers in the discovery window (default about 28 hours) are not reported. Balances only; no USD valuation.
Basecall402.comfrom $0.0052 endpoints - WWickedAPI Broker SyncCrypto & DeFi
Prop-firm platform integration registry — live-verified methods (Topstep ProjectX API, FTMO MatchTrader bridge) and connection status.
Basebroker-sync-api.wickedapi.comfrom $0.0011 endpoint - Aaudit-site-web.pga-agent.frCrypto & DeFi
On-chain facts for any Base address: EOA or contract, first transaction and age, transaction count, ETH and USDC balances, top 10 tokens held with USD value when known, recent contracts created. Information, not investment advice.
Baseaudit-site-web.pga-agent.frfrom $0.0074 endpoints - CChit402Crypto & DeFi
Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.
SolanaBaseapi.xfuel.appfrom $0.0024 endpoints - AA2A Nexus CanadaBuysCrypto & DeFi
CanadaBuys IT tender data
Baseapi.postulated.storefrom $0.012 endpoints - AAgentResolverCrypto & DeFi
No-body $0.001 x402 settlement test for funded agents. Verifies the buyer wallet, facilitator, USDC payment path, and paid delivery end-to-end by returning a timestamped pong only after successful settlement.
BaseSolanaagentresolver.vercel.appfrom $0.0018 endpoints - AAgent Economy ReportCrypto & DeFi
Operational trust rating (AAA to D, trust line BBB) of any x402 service, as of today: tier, outlook, flags, uptime, organic paying agents, settled USDC, centrality. Sybil-resistant, computed daily from on-chain settlement on Base, Polygon, Arbitrum and Solana plus a liveness probe. Check a service before paying it. Free today-only JSON: https://agenteconomy.report/s/<host>.json
Baseagenteconomy.reportfrom $0.0052 endpoints
AgentAuditCrypto & DeFix402 services ranked by 30-day on-chain settlement volume, optionally by category.
BaseSolanaagentaudit.waltsoft.netfrom $0.011 endpoint- Aagent-production-d9d8e.up.railway.appCrypto & DeFi
Verify that a Base transaction paid what you expected. Give a tx hash; get status (success/reverted/pending), confirmations, from/to, ETH value, L2 fee and every ERC-20 Transfer decoded with symbol and decimals. Optional to, token and minAmount params return verified=true/false plus the matching transfer. Live data from Base RPC. Use it before delivering goods or crediting a deposit.
Baseagent-production-d9d8e.up.railway.appfrom $0.0031 endpoint
SpawnXchangeCrypto & DeFiList your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.
BasePolygonspawnxchange.comfrom $0.011 endpoint- SSolana DeFi IntelligenceCrypto & DeFi
The real best Solana DEX pools. Same top-pools feed a free API returns, but wash-traded and fake-volume pools are filtered out and the rest ranked by risk-adjusted fee yield (Raydium/Orca/Meteora). Returns clean, decision-ready pools plus an `excluded` list showing exactly which pools were dropped and why. For liquidity, yield and MEV agents that can't trust raw volume numbers.
BaseSolanasoldefi.thomenz.mefrom $0.021 endpoint - Oomniac.0000402.xyzCrypto & DeFi
Pay $0.01 USDC to ask Omniac, the Omniacs DAO mascot, any question about crypto, data science, or tech. Responses are concise by default. Powered by llama-3.3-70b via Venice.ai. Max question length: 2000 characters. Network: Base Mainnet. Each request sends one natural-language question to the model and returns one direct answer, making it useful for crypto explainers, technical Q&A, research supp
Baseomniac.0000402.xyzfrom $0.011 endpoint - Ddecipherranker.comCrypto & DeFi
Get a detailed merchant deep-dive by wallet address. Returns volume stats, buyer diversity, trend signals, and recommendations.
Basedecipherranker.comfrom $0.031 endpoint - Ccrypto-tx-categorizer-production.up.railway.appCrypto & DeFi
Categorize crypto/bank transactions with optional invoice matching and label interpretation
Basecrypto-tx-categorizer-production.up.railway.appfrom $0.101 endpoint - Xx402 HostingCrypto & DeFi
Create an upload session to deploy a new version of an existing project. Call this when publishing an update; it returns a presigned artifact upload URL. Only the project owner wallet can pay.
Baseapi.x402-hosting.comfrom $0.012 endpoints - TToken Safety VerdictCrypto & DeFi
Token safety check on Base before buying: honeypot, rug pull and scam detection. Verdict SAFE/CAUTION/SCAM with fixed reason codes and action ALLOW/BLOCK/RECHECK; admin rights, sell tax, liquidity, two independent honeypot sources plus own sale simulation of a real holder (Uniswap v4 included), check coverage and block number
Baseapi.endpointrecord.comfrom $0.021 endpoint - Ttokenctl.ioCrypto & DeFi
Risk scan for one Solana SPL token. Call it before buying, listing, accepting or recommending a token you have not vetted. Checks mint and freeze authority, holder concentration, liquidity and wash volume; pro also traces holder wallets for bot farms, shared funders and launch snipers. Returns NO_FLAGS, WATCH or RISKY with an AI summary. basic $0.02, pro $0.05. Scans that fail or have bad input ar
Solanatokenctl.iofrom $0.021 endpoint - Ddead-dropCrypto & DeFi
Store the request body under {key} in box {box} (a box_ id, a channel name, or "me" for your wallet's box). Query ttl=seconds (60 to 604800, default 3600). Body up to 65536 bytes. Returns the stored item with its box id, which free GET /box/{box}/{key} reads need.
Basedead-drop.chris15118-4cd.workers.devfrom $0.0021 endpoint - Aapi.cleave.fiCrypto & DeFi
Native gas on Ethereum, Arbitrum, Base, BNB Chain, Polygon or Optimism, paid in USDC on Base, Arbitrum or Polygon. Offers come from /x402/gas/quote for the chains, a recipient and a USDC amount. The payment goes to an address made for that one order, which delivers at least the stated minimum in native; from another chain, USDC on arrival if the arrival swap fails. An order not executed by its dea
Baseapi.cleave.fifrom $5.001 endpoint - QQuick ZK AuthCrypto & DeFi
Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.
Basezk.quickai.buildfrom $0.051 endpoint - ZzeroclassCrypto & DeFi
Pay-per-call: meter rules_read, $0.05 (service zeroclass). Unsigned/unpaid → 402 x402/MPP challenge; settle and retry. Returns transfer_partners + the Avios interchange bridge + active bonuses.
Basezeroclass.pay.zeroclick.iofrom $0.052 endpoints - Yyieldsignal.vercel.appCrypto & DeFi
Real-time risk-weighted USDC lending APY on Base: Aave/Compound/Morpho read onchain, Moonwell/Euler/Fluid via DefiLlama, source tagged per reading (never estimated). EIP-712 signed by the payment-receiving address (see X-Signal-* headers), which also holds an ERC-8004 identity and attests readings on-chain via EAS. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at
BaseSolanayieldsignal.vercel.appfrom $0.101 endpoint - PPerfil de contraparte en BaseCrypto & DeFi
Perfil de contraparte en Base: tipo (EOA, EOA con EIP-7702 o contrato), nonce, saldos de ETH y USDC, y flujo de USDC de los últimos 7 días (recibido, enviado, contrapartes y pagadores distintos). Hechos con número de bloque, sin puntajes. Útil antes de pagarle a un payTo desconocido.
Basex402.sumeria.arfrom $0.011 endpoint
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.