Paid APIs

💰 Paid API Quicknode blockchain $0.0000 – $0.0010

mpp.quicknode.com · Quicknode

Quicknode Core Node API for 80+ blockchains and 140+ networks.

💰 Paid API Conduit blockchain $0.0001/call

mpp.conduit.xyz · Conduit

EVM JSON-RPC access to Conduit Nodes across 60+ networks including Tempo, Plume, and Polygon Katana.

💰 Paid API true402 blockchain $0.0001 – $0.0200

true402.dev

Machine-native marketplace of x402-gated APIs. 27 paid endpoints, no accounts and no API keys - the wallet is the identity. Strongest coverage is on-chain token safety: honeypot buy/sell simulation vi…

💰 Paid API Alchemy blockchain $0.0001 – $0.0005

mpp.alchemy.com · Alchemy

Blockchain data APIs including Core RPC APIs, Prices API, Portfolio API, and NFT API across 100+ chains.

💰 Paid API anchor-x402 blockchain $0.0010 – $1.7700 $2.65 earned 30d

api.anchor-x402.com · anchor-x402 · wallet 0x1274…d0b6

18 x402-paid services for AI agents — pay-per-call USDC on Base or Solana mainnet. On-chain anchoring and attestation, wallet screening, Web3 data, x402 spend accounting, content analysis, and verifia…

💰 Paid API api.loyalspark.online blockchain $0.0010 – $0.0100 $84.51 earned 30d

api.loyalspark.online · wallet 0x40a8…ad8b

Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP.

💰 Paid API FiatDock blockchain $0.0010 – $0.0500 $3.10 earned 30d

fiatdock.com · FiatDock · wallet 0xeb12…87c6

An MCP marketplace where AI agents discover and pay each other per call in USDC over x402 — settlement goes DIRECTLY to the seller, non-custodial, no API keys and no signup. Sellers publish an MCP ser…

💰 Paid API api.onesource.io blockchain $0.0010 – $0.0100 $103.64 earned 30d

api.onesource.io · wallet 0x52e2…f3ea

RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key.

💰 Paid API x402.professorsausages.com blockchain $0.0010 – $0.0500 $0.14 earned 30d

x402.professorsausages.com · wallet 0x54eb…0d5b

Token safety & rug-pull/honeypot risk check — scans an ERC-20's bytecode & ownership on Base/Ethereum for mint, blacklist, pause, fee traps Pay-per-call USDC on Base via x402; free agent-readable help…

💰 Paid API Base Agent Evidence & Route API blockchain $0.0010/call

merchant-base.mikedotexe.com

Paid, finality-aware Base account and transaction evidence, bounded activity lookup, and dry Base-USDC-to-NEAR-USDC route quotes.

💰 Paid API fry.farm x402 Agentic Actions blockchain $0.0010 – $0.0100

fry.farm

15 pay-per-call USDC endpoints on Algorand mainnet: DeFi/DePIN data feeds plus non-custodial transaction builders (staking, LP farming, NFT mint, P2P offers). Builders return unsigned atomic groups - …

💰 Paid API LiquidPad blockchain $0.0010 – $0.0050

www.liquidpad.site

Pay-per-request LiquidPad endpoints. Verify whether a token was deployed via LiquidPad (ERC-8004 anchored), get full agent provenance with fee split, or read the full agents registry snapshot.

💰 Paid API SolSigs blockchain $0.0010 – $0.3500

solsigs.com

Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trus…

💰 Paid API Codex blockchain $0.0010/call

graph.codex.io · Codex

Comprehensive onchain data API for tokens and prediction markets. Real-time prices, charts, trades, and wallet analytics across 80+ networks via GraphQL.

💰 Paid API Tempo RPC blockchain $0.0010/call

rpc.mpp.tempo.xyz · Tempo

Tempo blockchain JSON-RPC access (mainnet and testnet).

💰 Paid API api.utilia.ink blockchain $0.0020 – $0.0060 $0.00 earned 30d

api.utilia.ink · wallet AX1TzK…UKh5

Machine-payable Solana transaction intelligence for autonomous agents: live priority-fee quantiles, transaction simulation, confirmed-transaction diagnostics, and token mint risk analysis. Every respo…

💰 Paid API eltociear-contract-guard.hf.space blockchain $0.0050/call $3.71 earned 30d

eltociear-contract-guard.hf.space · wallet 0x5bcd…64dd

Pre-interaction risk signals for any EVM contract/token address. USDC on Base via x402.

💰 Paid API GenTech Labs x402 Gateway blockchain $0.0050 – $0.0200

api.gentechlabs.net

Pay-per-call API gateway with 6 services across Base Network. Token security scoring, wallet portfolio analysis, on-chain agent discovery, market intelligence, DeFi LP analytics with efficiency scorin…

💰 Paid API pay.ansht.tech blockchain $0.0050/call $28839.34 earned 30d

pay.ansht.tech · wallet GqKTCs…tU8r

Solana on-chain intelligence sold per call in USDC over x402. decode: turn any transaction (by signature or raw base64) into human-readable instructions, accounts and program names across 46 known mai…

💰 Paid API VIGIL blockchain $0.0050 – $0.0100

mcp.vigil.codes

Keyless onchain security scanner for Base. 14 MCP tools incl honeypot detection, liquidity lock, approval simulation, and a 6-source consensus verdict. Free core checks; premium tools via x402 USDC on…

💰 Paid API BaseSentinel blockchain $0.0050 – $0.0100

api.blackswanlabs.pl

Base threat-intel API for AI agents (M2M). HTTP 402 + USDC on Base. On-demand contract scan (SAFE/SCAM), daily threat feed, and live threat stream. Settlement via X-Payment-Proof (USDC tx hash).

💰 Paid API defi.hugen.tokyo blockchain $0.0100/call $26.74 earned 30d

defi.hugen.tokyo · wallet 0x2932…4f60

DeFi data and token security API. Endpoints cover token and address risk checks, phishing and approval lookups, bridge routes and quotes, plus chain level stablecoin supply, DEX volume and protocol fe…

💰 Paid API anomaly.forgemesh.io blockchain $0.0100 – $0.0500 $0.36 earned 30d

anomaly.forgemesh.io · wallet 0xe295…d6e5

Pay-per-call anomaly and signal API: sequence anomaly scoring on chain event windows, mempool and whale monitoring, stablecoin depeg checks, plus aviation and GitHub signal endpoints. USDC on Base, fr…

💰 Paid API whale.hugen.tokyo blockchain $0.0100 – $0.0200 $26.74 earned 30d

whale.hugen.tokyo · wallet 0x2932…4f60

Resolves Ethereum addresses to entity labels, name tags and categories from a database of about 412,000 labeled addresses, and returns large ETH transfers with labeled counterparties. Paid per call in…

💰 Paid API Deepnets API blockchain $0.0100 – $0.1500 $10.00 earned 30d

api.deepnets.ai · wallet Bn7sLN…biY8

Solana on-chain analysis API: token safety scoring, holder breakdowns, wallet funding-network graphs, social research, trending feed and watchlist. Paid per call in USDC on Solana via x402.

💰 Paid API Sol Node Labs blockchain $0.0100 – $0.0200

api.solnodelabs.com

Pseudonymous pay-per-call crypto risk intelligence: deterministic Solidity triage, Base token risk screening, and vetted crypto bounty intelligence. USDC via x402 on Base and Solana; no account or API…

💰 Paid API BentCrypto blockchain $0.0100/call $0.01 earned 30d

api.bentcrypto.com · wallet 0x2e0f…4f3b

Solana pre-trade token intelligence APIs for AI agents and automated applications, providing token risk scoring and authority/Token-2022 security analysis through x402 USDC micropayments.

💰 Paid API ZERO blockchain $0.0200 – $0.0500

zero.broke2builtai.com

Two paid on-chain analysis endpoints on Base, sold by an autonomous agent that runs on its own revenue. /api/contract-audit (0.05 USDC) returns a structured smart-contract risk report from verified so…

💰 Paid API chainkit blockchain $0.0200/call

chainkit.leeworks.dev

17 on-chain compute primitives in one x402 API: keccak256, ABI encode/decode, function selectors, EIP-712 hashing + signature recovery/verification, merkle root/proof/verify, CREATE/CREATE2 address de…

💰 Paid API chainscout.lonestaroracle.xyz blockchain $0.0500/call $10.10 earned 30d

chainscout.lonestaroracle.xyz · wallet 0x52ab…6c06

Paid on-chain intelligence API returning whale transfers, trending tokens and DeFi protocol TVL shifts on Base and Ethereum, priced per query in USDC.

💰 Paid API contract.lonestaroracle.xyz blockchain $0.0500/call $10.10 earned 30d

contract.lonestaroracle.xyz · wallet 0x52ab…6c06

Paid API that checks a deployed contract address on Ethereum, Base, BSC, Arbitrum or Polygon and returns source verification status, proxy type, owner address, compiler version and risk flags. $0.05 p…

💰 Paid API aero.lonestaroracle.xyz blockchain $0.0500/call $10.10 earned 30d

aero.lonestaroracle.xyz · wallet 0x52ab…6c06

Takes an Aerodrome or Uniswap v2 compatible pool address on Base and returns per token risk scores, honeypot status, risk flags and a safe, caution or avoid verdict for the pair.

💰 Paid API XRPL Microstructure blockchain $0.0500 – $0.7500

data.tg-lw.com

First-party XRPL market-microstructure and safety data, served per call over x402 and paid in USDC on Base. Cumulative order-book depth by bps band with an execution-cost curve, a 250-issuer safety re…

💰 Paid API api.ledgercore.io blockchain $0.1000/call $0.10 earned 30d

api.ledgercore.io · wallet 0x5a10…d068

x402 pay-per-use KYA, KYT, and KYE crypto compliance API for AI agents. Provides address risk reports, transaction risk screening, entity due diligence, compliance risk screening, and auditable report…

💰 Paid API token.lonestaroracle.xyz blockchain $0.1500/call $10.10 earned 30d

token.lonestaroracle.xyz · wallet 0x52ab…6c06

Returns a risk report for an ERC-20 token contract: risk score, GoPlus security flags, honeypot detection, liquidity, top-holder concentration, ownership status and an AI analyst verdict.

💰 Paid API wallet.lonestaroracle.xyz blockchain $0.1500/call $10.10 earned 30d

wallet.lonestaroracle.xyz · wallet 0x52ab…6c06

Risk scoring for EVM wallet addresses: transaction history, DeFi exposure and behavioral flags, returned as a numeric score via a single paid endpoint.

💰 Paid API intel.hugen.tokyo blockchain $0.5000/call $26.74 earned 30d

intel.hugen.tokyo · wallet 0x2932…4f60

Crypto due diligence API. Token, wallet, contract and DeFi yield reports combining security checks, market data and an AI risk score from 0 to 100 with red and green flags. Full report $0.50, lite var…

💰 Paid API Stakevia blockchain $1.0000/call

stakevia.xyz

Pay-per-request Solana validator due-diligence reports.

💰 Paid API Holoworld $FIGHT Pass blockchain $50.0000/call

x402.holoworld.com

Holoworld x402 mint endpoint on Solana. GET /api/mint mints the $FIGHT Pass for 50 USDC per request.

💰 Paid API SNTL blockchain

a2a.sntl.site

Deterministic machine-to-machine intelligence oracle for DePIN infrastructure. Exposes enriched on-chain events, RF physics propagation telemetry, spatial heuristics, and forensic state chronicles. Ti…

💰 Paid API ENS forward/reverse resolution blockchain $0.40 earned 30d

rpc-ens.hergertsynthora.com · SYNTHORA · wallet 0x1080…7de0

ENS forward/reverse resolution: name->address and address->name. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.002 US…

💰 Paid API SYNTHORA Native Balance (eth_getBalance) blockchain $0.44 earned 30d

rpc-balance.hergertsynthora.com · wallet 0x1080…7de0

Returns the native coin balance of an EVM address (wei and decimal) via eth_getBalance on Base, Ethereum and other chains, with an Ed25519 signed response receipt. 0.001 USDC per call over x402 on Bas…

💰 Paid API SYNTHORA MEV Exposure Detector blockchain $0.44 earned 30d

mevdetector.hergertsynthora.com · wallet 0x1080…7de0

Checks a Base transaction hash for MEV exposure. Identifies whether it is a DEX swap and scans neighbouring transactions in the same block for sandwich, frontrunning or backrunning patterns, returning…

💰 Paid API Tx Intent Classifier blockchain $0.44 earned 30d

txintent.hergertsynthora.com · SYNTHORA · wallet 0x1080…7de0

Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opa…

💰 Paid API SYNTHORA RPC Transaction by Hash blockchain $0.44 earned 30d

rpc-tx.hergertsynthora.com · wallet 0x1080…7de0

Returns the full details of an EVM transaction given its hash, across Base, Ethereum, Polygon, Arbitrum and Optimism. Responses include an Ed25519 signed receipt and the upstream RPC endpoint used. Th…

💰 Paid API SYNTHORA Contract Code Check (eth_getCode) blockchain $0.44 earned 30d

rpc-code.hergertsynthora.com · wallet 0x1080…7de0

Checks whether an EVM address is a contract using eth_getCode, reporting code size and EIP-7702 delegation status in an Ed25519 signed JSON response. Three free calls per wallet are available via the …

💰 Paid API SYNTHORA RPC Receipt blockchain $0.44 earned 30d

rpc-receipt.hergertsynthora.com · wallet 0x1080…7de0

Returns an EVM transaction receipt (status, gas used, block number, log count) for a given transaction hash via eth_getTransactionReceipt, with an Ed25519 signature over the response. First 3 calls pe…

💰 Paid API SYNTHORA RPC Network Metadata blockchain $0.44 earned 30d

rpc-network.hergertsynthora.com · wallet 0x1080…7de0

Returns chain metadata for five EVM chains (Ethereum, Base, Polygon, Arbitrum, Optimism): chain ID, latest block, gas price and finality, read from public RPC endpoints and returned with an Ed25519 si…

💰 Paid API Synthora RPC Contract Metadata blockchain $0.44 earned 30d

rpc-contract.hergertsynthora.com · wallet 0x1080…7de0

Returns contract metadata for an EVM address (name, symbol, decimals, is-contract, is-erc20) via on-chain RPC, with Ed25519-signed responses. First 3 calls free per wallet via the X-WALLET header, the…

💰 Paid API SYNTHORA RPC Proxy Detect blockchain $0.44 earned 30d

rpc-proxy.hergertsynthora.com · wallet 0x1080…7de0

Checks an EVM contract for EIP-1967 style proxy slots and returns implementation, admin and beacon addresses when present. Responses are Ed25519 signed. Legacy or non standard proxy slots are not reso…

💰 Paid API SYNTHORA Gas & MEV Oracle blockchain $0.44 earned 30d

gasoracle.hergertsynthora.com · SYNTHORA · wallet 0x1080…7de0

Live gas price and MEV oracle across chains: base/priority fees, congestion and MEV signal. For agents timing transactions. Ed25519-signed. $0.003 USDC per call via x402 (CDP facilitator) on Base. POS…

💰 Paid API SYNTHORA ERC-20 Token Balance blockchain $0.44 earned 30d

rpc-erc20-balance.hergertsynthora.com · wallet 0x1080…7de0

Returns the ERC-20 token balance of a holder address by calling balanceOf on Base and other EVM chains, with raw and decimal-adjusted values, token symbol and the RPC endpoint used. Responses carry an…

💰 Paid API SYNTHORA Base Block Metrics blockchain $0.44 earned 30d

base-block-metrics.hergertsynthora.com · wallet 0x1080…7de0

Returns live Base mainnet chain metrics (latest block number, base fee per gas, gas used) sourced from a public Base RPC. Priced at 0.001 USDC per call via x402 on Base, with the first 3 calls free pe…

💰 Paid API apix402 — Onchain Verified Data blockchain

api402x.com · wallet 0xe606…6816

Onchain governance, treasury and risk data for agents, read from the contracts rather than mirrored from a dashboard. DAO proposals cross-checked between Snapshot and each DAO's own Governor contract;…