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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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Crypto & DeFi
281 results- Ttokensafe-production.up.railway.appCrypto & DeFi
No description yet.
Solanatokensafe-production.up.railway.appfrom $0.0081 endpoint - TTxGuardCrypto & DeFi
TxGuard: pre-sign safety check for AI-agent Solana wallets. POST an unsigned/partially-signed base64 transaction; returns mainnet simulation, your SOL/token deltas, ownership/authority changes, delegate approvals, System Assign drainer detection, unknown programs and an OK/REVIEW/BLOCK verdict.
Solanatokencheck.agent.deno.netfrom $0.021 endpoint - Ttoken-safety.50to50k.workers.devCrypto & DeFi
Solana token safety report: mint and freeze authorities, risky Token-2022 extensions (permanent delegate, transfer fee, transfer hook, pause, non-transferable), real sellability through a Jupiter sell quote with price impact at $100 and $1000, liquidity, holder concentration, pool age, and a 0-100 risk score with explained flags.
Solanatoken-safety.50to50k.workers.devfrom $0.012 endpoints - RRF Legality CheckCrypto & DeFi
RF band catalogue search: given a frequency or band name fragment, returns every matching band with range, region, uses and legality.
Solanatill.davidlightlabs.iofrom $0.0018 endpoints - Ttailtrace-solana-x402-prod.simonwakelin.workers.devCrypto & DeFi
TailTrace provides evidence-based aircraft identity, registration history, and regulatory intelligence for AI agents, aviation applications, and aircraft due-diligence workflows. Resolve physical aircraft identities, investigate historical evidence, and access available safety and regulatory context with source provenance and uncertainty preserved. Resolve an FAA N-number to available evidence-bac
Solanatailtrace-solana-x402-prod.simonwakelin.workers.devfrom $0.153 endpoints - Sstealthguard-402.onrender.comCrypto & DeFi
StealthGuard 402 /v1/alpha/polymarket-top-whales
SolanaBasestealthguard-402.onrender.comfrom $0.0116 endpoints - Sstatus-state-api.replit.appCrypto & DeFi
Current normalized overall status, fault-first components, active incident (or closedIncidentSummary if stale), and poll clocks. overallStatus and hasActiveIncident are in the 402 JSON body so you can decide whether to pay. $0.01 per call in USDC on Base or Solana, verified and settled by the PayAI facilitator - no API key, no signup.
BaseSolanastatus-state-api.replit.appfrom $0.0166 endpoints - Ssolana-x402-microtools-mainnet.valecity.workers.devCrypto & DeFi
Probe one public HTTPS URL without following redirects; inspect x402 v2 challenge
Solanasolana-x402-microtools-mainnet.valecity.workers.devfrom $0.0036 endpoints - Ssolana-wallet-x402Crypto & DeFi
Call this before your agent pays an unfamiliar x402 payTo address or endpoint. Checks public sanctions lists (OFAC SDN crypto addresses), the ScamSniffer scam list, on-chain wallet age, activity and program status on Solana or Base, and optionally the endpoint's unpaid 402 challenge (payTo mismatch, price outliers). Returns verdict ok, caution, do_not_pay or unknown, a 0-100 score, flags with evid
BaseSolanasolana-wallet-intel.falcon-sol.workers.devfrom $0.0034 endpoints - SSolana PulseCrypto & DeFi
Use before sending SOL or paying fees, to confirm the wallet really holds enough. Never rely on a balance remembered from earlier in a conversation. Reads a wallet's native SOL balance directly from the chain.
Solanasolana-pulse-gateway-1021990235790.us-central1.run.appfrom $0.0124 endpoints - SSolana IntelCrypto & DeFi
Wallet health score: portfolio risk mix, verification, organic quality
Solanasolana-app-production.up.railway.appfrom $0.0013 endpoints - Ssol.mapleai.shopCrypto & DeFi
OpenAI-compatible chat completion, priced by counted input tokens + max output tokens at per-model rates
Solanasol.mapleai.shopfrom $0.0016 endpoints - Ssoftbot-tokencheck-mainnet.softbot.workers.devCrypto & DeFi
Solana token safety check: verdict (safe/caution/avoid), 0-100 risk score and reasons from mint/freeze authority, Token-2022 extensions, holder concentration, age and DEX liquidity. Use when an agent is about to buy, swap, accept or recommend an unfamiliar Solana token. Not financial advice.
Solanasoftbot-tokencheck-mainnet.softbot.workers.devfrom $0.011 endpoint - Ssoftbot-sitecheck-mainnet.softbot.workers.devCrypto & DeFi
Website trust check: verdict (trustworthy_likely/caution/risky) with reasons from domain age (RDAP), DNS (A/MX/NS), HTTPS reachability and redirect chain, security headers, phishing/malware list snapshots, brand lookalike/typosquat detection, tech fingerprint and page title. Use when an agent is about to open, click, submit credentials or payment to, recommend or trust an unfamiliar URL or website
Solanasoftbot-sitecheck-mainnet.softbot.workers.devfrom $0.0031 endpoint - SScorpTech ReconCrypto & DeFi
Live gas tracker across Ethereum, Base, Arbitrum, OP Mainnet, Polygon and BNB Chain: head block age, base fee, 10th/50th/90th percentile priority fees from eth_feeHistory, suggested maxFeePerGas tiers, and estimated cost of a native transfer and an ERC-20 transfer. Read-only.
Solanascorptech.it.comfrom $0.0051 endpoint - SScanPayCrypto & DeFi
Code scan / security scan — inspect AI-generated Python/JS/TS source code BEFORE it runs. 45 deterministic AST rules return structured findings (rule_id, severity, line ranges, remediation) in ~100 ms with no code execution, no LLM and no data retention. Use it in agent loops that generate and execute code.
BaseSolanascanpay-edge.alextaghiashvili.workers.devfrom $0.000155 endpoints - Rrugshield-402.onrender.comCrypto & DeFi
Tracks institutional and high-win-rate whale wallet net inflows and outflows across Solana SPL and Base ERC-20 tokens.
BaseSolanarugshield-402.onrender.comfrom $0.0112 endpoints - QtyCrypto & DeFi
Canonical audit JSON plus sha256 of a previous Qty result. Includes input, definition ids, formulas, and a timestamp. The hash ignores the timestamp so the same payload always hashes the same. No chain write. Exact USDC $0.001 on eip155:8453 and solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp.
BaseSolanaqty.vercel.appfrom $0.0011 endpoint - Ppulse402-oracle.ak10082247.workers.devCrypto & DeFi
High-frequency Base DEX oracle delivering real-time pool reserve deltas, 60-second netflow velocity, buy/sell tax status, and exact slippage quotes for $100, $1,000, and $10,000 trade sizes across Aerodrome and Uniswap v3.
Solanapulse402-oracle.ak10082247.workers.devfrom $0.0014 endpoints - Ppricing-state-api.replit.appCrypto & DeFi
$0.01 USDC required (x402 / Base) Returns the history of detected pricing changes: what changed, plan-level detail, and when each change was detected. No API key needed. Pay with any x402-compatible wallet that holds USDC on Base. If your agent does not yet have a funded wallet, set one up via Coinbase Agentic Wallet or Base MCP — then standard x402 clients will pay and retry automatically.
BaseSolanapricing-state-api.replit.appfrom $0.0172 endpoints - Ppresign-guardCrypto & DeFi
Token verdict (green/orange/red, grade SAFE/CAUTION/RISKY/AVOID, reason codes, one-line summary, market data) for a Solana or EVM token: mint/freeze authority, honeypot, tax, LP lock, liquidity, age, holder concentration
Solanapresign-guard.onrender.comfrom $0.011 endpoint - Ppreflight-agent.netlify.appCrypto & DeFi
Read-only Solana financial-action firewall: decode and simulate an unsigned transaction, bind observed effects to declared intent and policy, and return a signed PASS/FAIL/REVIEW receipt
Solanapreflight-agent.netlify.appfrom $0.021 endpoint - Bbtc-txCrypto & DeFi
Recommended Bitcoin transaction fee-rates in sat per vByte across five confirmation horizons (fastest, half hour, hour, economy, minimum) plus a live mempool congestion snapshot with an estimated block backlog. Informational, not advice.
BaseSolanapayai.agentstools.devfrom $0.001362 endpoints - Ggreen alienCrypto & DeFi
green alien
Solanapay-green-alien.vercel.appfrom $0.011 endpoint - Oorbit Econ DataCrypto & DeFi
Currency conversion (ECB), $0.001 USDC per call: Convert an amount between currencies at the latest (or a historical date's) European Central Bank reference rate: amount, from, one or more targets → converted amounts, rate used, inverse rate and rate date. ~30 fiat currencies; no crypto. No params = runs the example input.
SolanaBaseorbit-econ.orbit-builder.workers.devfrom $0.0015 endpoints - Oorbit Chain ReadsCrypto & DeFi
EVM gas fees, $0.001 USDC per call: Live EIP-1559 gas for Base, Ethereum, Arbitrum, Optimism, Polygon (or all): next base fee, gas price, slow/standard/fast max fee + priority fee in gwei (median of last 20 blocks' 10/50/90th percentile tips), block utilisation, cost of a native transfer. Read from public RPC nodes at call time. No params = runs the example input.
Solanaorbit-chain.orbit-builder.workers.devfrom $0.0015 endpoints - Nnotary-solana.forgemesh.ioCrypto & DeFi
No description yet.
Solananotary-solana.forgemesh.iofrom $0.0012 endpoints - Mmpp.hyreagent.funCrypto & DeFi
Full AI verdict on a Solana token combining holders, snipers, dev history, bonding curve, freeze/mint authority — single comprehensive risk score. Sources: Solana RPC + PumpPortal.
SolanaBasempp.hyreagent.funfrom $0.01180 endpoints - MMOSN Token SafetyCrypto & DeFi
Solana token rug/safety check: mint & freeze authority, dangerous Token-2022 settings, real-wallet holder concentration (pools excluded), sell-route round-trip test, live buy/sell flow. Verdict SAFE/CAUTION/DANGER with reasons.
Solanamosn-api.mosn-3r41y.workers.devfrom $0.0053 endpoints - Mmadeonsol.comCrypto & DeFi
Real-time alerts from tracked Pump.fun deployers (all graded tiers)
Solanamadeonsol.comfrom $0.00544 endpoints
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.