Explore APIs

Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.

Projects: 4.5K
Paid endpoints: 106K
Paid calls · 30 days: 1M
Launched here: 0

All projects

4,273 results

Most used Rising Most payers Newest Cheapest A–Z

L
LeafmeltAI & agents
Leafmelt: Documents to clean Markdown for AI agents and RAG: PDF, Word, Excel, OpenDocument, CSV, HTML and more.
Baseleafmelt.cybermaxtools.com
from $0.008
1 endpoint
0
calls / 30d
L
LeafmeltAI & agents
Leafmelt: Documents to clean Markdown for AI agents and RAG: PDF, Word, Excel, OpenDocument, CSV, HTML and more.
Baseleafmelt.cybermax-tools.workers.dev
from $0.008
1 endpoint
0
calls / 30d
L
leadsuperstore.netSocial & people
LeadSuperstore.net verified external SMB & B2B prospect feed enriched with Core Web Vitals, WCAG 2.1 AA, JSON-LD & /llms.txt flaw diagnostics ($0.25 USDC per 10-lead batch).
Baseleadsuperstore.net
from $0.25
1 endpoint
0
calls / 30d
L
lazareus.xyzCrypto & DeFi
Checks whether the Solana network is currently degraded
SolanaBaselazareus.xyz
from $0.001
8 endpoints
0
calls / 30d
L
LAX registry by KognaiAI & agents
LAX registry by Kognai: list your AI agent in the Linked Agent eXchange so Kognai citizens, agents and outside buyers can find and hire it. Send your offer as the JSON body: name, description, an https endpoint, capabilities priced in USDC over x402, and the Five Laws accepted. Use it when your agent sells a service and wants buyers. Listing fee 0.01 USDC on Base. Kognai never asks for keys or see
Baselax.kognai.ai
from $0.01
1 endpoint
0
calls / 30d
TokenLaunchCrypto & DeFi
New token launch scanner — Base and EVM chains, real-time pool data
Baselaunches.lonestaroracle.xyz
from $0.05
1 endpoint
0
calls / 30d
LatAmPulseMarkets & finance
Full LatAm economic report — currencies, Argentina dolar blue, commodities, AI narrative
Baselatam.lonestaroracle.xyz
from $0.05
1 endpoint
0
calls / 30d
L
lanescrypt.vercel.appCrypto & DeFi
All Base protocol stats — TVL, categories, top protocols. Data from DeFiLlama.
Baselanescrypt.vercel.app
from $0.05
12 endpoints
0
calls / 30d
Landing en 24hSocial & people
Validate an Argentine tax ID (CUIT/CUIL): checks length, prefix and modulo-11 check digit offline, and returns normalized and formatted values plus entity type (person/company). Send {cuit}. Nothing is stored.
BasePolygonlandingen24h.com
from $0.001
18 endpoints
0
calls / 30d
F
Fortune GeneratorOther services
Get a random fortune via x402 payment on Base mainnet.
Baseladyfortunalx402.vercel.app
from $0.01
1 endpoint
0
calls / 30d
LaborPulseMarkets & finance
US labor-market signal (jobs, unemployment, wages, JOLTS)
Baselabor.lonestaroracle.xyz
from $0.05
1 endpoint
0
calls / 30d
F
FastX402Crypto & DeFi
Takes an IPv4 CIDR block like 10.0.0.0/22 plus an optional IP and returns network address, broadcast, netmask, wildcard, first and last usable host, usable host count, and whether the IP falls inside the block. Handles non-octet boundaries and /31, /32 edge cases.
Baselab.fastx402.tools
from $0.001
6 endpoints
0
calls / 30d
Kristo IntelligenceCrypto & DeFi
Kristo Intelligence - paid API data (/api/stats)
Basekristo-intelligence-api.onrender.com
from $0.003
5 endpoints
0
calls / 30d
C
Crypto Microdata for AgentsSocial & people
Live Korea kimchi premium: Upbit KRW vs global USD for BTC and ETH, plus USD/KRW FX. Korea crypto arb/sentiment signal. Optional symbols=BTC,ETH filter. Alias: /kr/kimchi-premium.
Basekr-x402-mvp.kgy5612.workers.dev
from $0.001
63 endpoints
0
calls / 30d
K
kr-notices-x402.pn-26f.workers.devOther services
Latest Bithumb notices, normalized: type classification, asset tickers, timestamps, source URL
Basekr-notices-x402.pn-26f.workers.dev
from $0.002
1 endpoint
0
calls / 30d
K
Kognai KreativImages, audio & video
Kognai Kreativ image agent: one original image made from your text prompt (square, portrait or landscape) and checked by a quality reviewer before delivery. Use it when an agent needs an illustration, a product visual or a social post picture. Answers with a result link; on Base the payment is collected only on delivery. AIAX manifest at https://www.kognai.ai/aiax/manifest.json.
SolanaBasekognai.ai
from $0.18
3 endpoints
0
calls / 30d
K
klowor-token-check-kingklowor-project.vercel.appCrypto & DeFi
Token security verdict for BSC, Base, Ethereum and Solana token contracts: risk level, honeypot/scam flags, buy and sell tax, verified source status. Data: Binance Web3 security audit.
Baseklowor-token-check-kingklowor-project.vercel.app
from $0.005
1 endpoint
0
calls / 30d
K
klminnovation.comAI & agents
KLM Playbook+ Agent/MCP pack 0.1.0 (sha256 b9bcf1c61f4b345bc01539577dc9a013009ca9e6d6490eb60dbb3dfb226cf788)
Baseklminnovation.com
from $1.00
1 endpoint
0
calls / 30d
K
KlearFlow RelaySocial & people
Inspect a real business revenue opportunity using KlearFlow scoring and revenue-leak economics.
Baseklearflow.vercel.app
from $0.005
1 endpoint
0
calls / 30d
K
klane402.deanhiki.workers.devOther services
Classify sentiment and topics of text (any language incl. Korean). Returns {sentiment: positive|neutral|negative, score, topics[]}. Query: text. $0.003.
Baseklane402.deanhiki.workers.dev
from $0.002
3 endpoints
0
calls / 30d
K
kimchi-x402.pn-26f.workers.devMarkets & finance
Dual-basis kimchi premium per symbol: official-FX and USDT-KRW tradeable basis, Upbit and Bithumb vs global reference (Binance, Coinbase fallback)
Basekimchi-x402.pn-26f.workers.dev
from $0.002
1 endpoint
0
calls / 30d
K
khotem.comOther services
KHOTEM /api/seal/free
Basekhotem.com
from $0.01
35 endpoints
0
calls / 30d
K
khipu-x402.khipu-agency.workers.devOther services
No description yet.
Basekhipu-x402.khipu-agency.workers.dev
from $0.10
1 endpoint
0
calls / 30d
K
KevscopeOther services
Kevscope: CVE priority API: up to 20 CVEs per call with a verdict and the evidence (CISA KEV, EPSS).
Basekevscope-api.cybermaxtools.com
from $0.003
1 endpoint
0
calls / 30d
K
KevscopeOther services
Kevscope: CVE priority API: up to 20 CVEs per call with a verdict and the evidence (CISA KEV, EPSS).
Basekevscope-api.cybermax-tools.workers.dev
from $0.003
1 endpoint
0
calls / 30d
K
kassa-402.annushka1190.workers.devAI & agents
Compress long text into key sentences for agents that need a short digest without calling an LLM.
Basekassa-402.annushka1190.workers.dev
from $0.01
1 endpoint
0
calls / 30d
K
k2so.grok.meSearch & web
Decision procedure for individual agent micro-payments: when to auto-pay, deliberate, defer, or escalate a single x402/MPP payment request. Uses amount vs standing-policy cap, merchant trust score, remaining budget, and quote freshness. Returns numbered decision steps, exit criteria, and failure modes.
Basek2so.grok.me
from $0.001
6 endpoints
0
calls / 30d
B
Base USDC Transfer EvidenceDeveloper tools
Quorum-verified Base USDC receipt across two of three public RPC sources: transaction status, recipient, amount and confirmations
Basejzallxzbbdtelcpabfgr.supabase.co
from $0.005
3 endpoints
0
calls / 30d
J
julie.freysa.devCrypto & DeFi
EVM smart-contract risk screen for Base tokens. Call before swapping or sniping a newly launched contract: returns honeypot score, reentrancy/selfdestruct flags, access-control pattern and liquidity-lock status as JSON. Pay 0.01 USDC on Base per call via x402.
Basejulie.freysa.dev
from $0.01
1 endpoint
0
calls / 30d
J
json-repairCrypto & DeFi
AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat
Basejson-repair.agentdiet.dev
from Free
5 endpoints
0
calls / 30d

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.