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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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- Paid calls · 30 days
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Crypto & DeFi
1,023 results- SStablebaseCrypto & DeFi
List all Stablebase projects owned by the calling wallet.
Basestablebase.devfrom $0.011 endpoint - Rrevert.wtfCrypto & DeFi
Paid hosted deterministic explanation for EVM/RPC/wallet/UserOperation/x402 errors. Send raw pasted error JSON, text, or revert bytes.
Baserevert.wtffrom $0.0011 endpoint
XR-PulseCrypto & DeFiXR-Pulse normalized XRPL signal feed (news + on-chain whale activity)
xrplBasepulse.xrpl-utilities.io—1 endpoint- Ppulse.chainverdict.xyzCrypto & DeFi
API uptime and reliability monitoring for any x402 endpoint: a live quality verdict covering availability, uptime, latency percentiles, 402-offer conformance, price-drift and payTo-stability flags. Deterministic and re-verifiable.
Basepulse.chainverdict.xyzfrom $0.032 endpoints - Ppqs.onchainintel.netCrypto & DeFi
Quick pre-flight quality score: composite (0-100) + grade (A-F) + three framework sub-scores (PEEM, RAGAS, G-Eval) + verdict. Run upstream of any other paid call to filter weak prompts before inference. The cheapest gate on the AI input quality problem.
Basepqs.onchainintel.netfrom $0.0011 endpoint - Oonchain-toolkit.bowling-anthony.workers.devCrypto & DeFi
Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon, in gwei plus the cost of a plain transfer. Compare several chains in one call.
Baseonchain-toolkit.bowling-anthony.workers.devfrom $0.0051 endpoint - Nnojunk-token-check.mick8511.workers.devCrypto & DeFi
Crypto token rug-pull and junk-risk check for Base, Ethereum, BNB Chain, Arbitrum, Polygon, Optimism, Avalanche and Solana. Send a token contract address or Solana mint; get a grade (JUNK, RISKY, CAUTION, CLEAN), a 0-100 risk score and red flags: honeypot, sell tax, mint/freeze authority, owner powers, holder concentration, liquidity, pool age. Not financial advice. Free sample: https://nojunk-tok
Basenojunk-token-check.mick8511.workers.devfrom $0.011 endpoint - Nnojunk-address-check.mick8511.workers.devCrypto & DeFi
Wallet and contract safety check before you send funds or approve a spender. Send an EVM address (Base, Ethereum, BNB Chain, Arbitrum, Polygon, Optimism, Avalanche); get a verdict (DANGER, SUSPICIOUS, NO KNOWN ISSUES), scam flags (phishing, theft, scam-token creator, sanctions, mixer, money laundering) and contract checks (source verification, proxy, age, owner privileges, reported malicious behav
Basenojunk-address-check.mick8511.workers.devfrom $0.011 endpoint
WAVE-1 Token ForecasterCrypto & DeFiShort-term price-movement forecast for any crypto token across 7 time horizons.
Basemcp.deep3.aifrom $0.0011 endpoint- LLeetspeak TranslatorCrypto & DeFi
Takes a piece of text and either turns it into leetspeak (swapping some letters for numbers and symbols, like 'hello' becoming 'h3110') or turns leetspeak back into normal, easy-to-read words. The same words always produce the same result, so answers never change unexpectedly.
BaseSolanaleetspeak-translator.underscoredone.comfrom $0.011 endpoint - 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
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.