x402 APIs on Base
Base is the network almost every PayAPI Market listing advertises for USDC. This page is that set: live APIs whose network records say Base is advertised, so an agent that holds USDC on Base can pay them. A listing that only advertises another network is not included. The page does not invent a second catalogue. It filters the same live rows the marketplace uses. Discovery stays free at payapi.market/mcp. The paid call goes to the provider over x402 in USDC on Base, Solana or Algorand. No API key is required. Settlement-verified means a paid route with an on-chain receipt, and the examples are claimed listings that have one. Unclaimed (bazaar) imports are labelled and are not the examples. Listing is free and the provider keeps 100% of each settled call. The API and endpoint counts are the live size of the Base filter, including every category.
1041 APIs and 6309 endpoints match this page. 1031 are settlement-verified: a paid route with an on-chain receipt.
Settlement-verified examples
- Lemon Toolshed · $0.002 to $0.006 · settlement-verified · On-chain receipt
19 pay-per-call conversion tools for agents: markdown, HTML, JSON, YAML, CSV, text and more. x402 USDC on Base and Solana, $0.002-$0.006 per call, no keys or accounts. Every route answers 402 with the - 10x402 · $0.004 to $0.12 · settlement-verified · On-chain receipt
x402 conformance lint for sellers: 82 regime-labeled, source-cited checks against your live 402 (envelope, dual-stack, Bazaar metadata), grade + bazaar_ready verdict. USDC on Base and Solana, $0.004-$ - AeroCheck · $0.05 · settlement-verified · On-chain receipt
Risk scanner for Aerodrome and Uniswap v2 pools on Base. Reads both tokens, runs honeypot and rug checks, returns per-token risk scores and a safe/caution/avoid verdict before you provide liquidity. - Cognilode Ticket Resale Underwriter · $0.005 · settlement-verified · On-chain receipt
Pay-per-call ticket resale underwriting for break-even, safe buy ceiling, net profit, ROI, downside, liquidity, and ranked buy/no-buy decisions. - Crypto Snapshot Pro - AI Trading Signals · $0.025 · settlement-verified · On-chain receipt
AI crypto trading signals: entry, target, stop, risk/reward, conviction. Pay per request via x402 in USDC on Base. - kino402 · $0.007 to $16.701 · settlement-verified · On-chain receipt
Pay-per-call video generation and TTS for agents. The 402 carries a parametric quote, so the price depends on the input: TTS is priced PER CHARACTER at about $0.00024 a character with a floor near $0.001 (5 characters quoted $0.002, 200 characters quoted $0.048), video is $0.056 to $16.70 by length and resolution, and compiled prompts are $0.008. Read the quote in the 402 rather than assuming a fixed price. USDC on Base and Solana, no key. - LaborPulse · $0.05 · settlement-verified · On-chain receipt
US labor-market signal in one call: jobs, unemployment, wage growth and JOLTS distilled into a single read. Straight from the BLS. - LLM2API - Gemma 4 12B + Crypto Trade Checks · $0.05 · settlement-verified · On-chain receipt
OpenAI-compatible Gemma 4 12B chat completions plus crypto pre-trade checks (news risk-check, liquidity size-check) powered by the live Kurage FreqAI trading system. - MachineMint — Unsigned Base Transaction Preflight · $0.01 · settlement-verified · On-chain receipt
Preflight unsigned Base transactions before signing. Simulates execution, estimates gas, checks balance and contract code, decodes transfers/approvals, flags risks, and returns PASS, REVIEW, or FAIL. - MacroPulse · $0.05 · settlement-verified · On-chain receipt
US macro-conditions signal in one call: growth, inflation and policy distilled into a single read an agent can gate decisions on. Built from official data. - Melssa · $0.01 to $2 · settlement-verified · On-chain receipt
справочно съдържание за живот в България - NexusEval Marketing Preflight · $0.01 · settlement-verified · On-chain receipt
x402-paid pre-publish marketing QA gate for AI agents, returning structured quality and risk flags before content goes live.
Unclaimed (bazaar) imports
These rows were imported and the provider has not claimed them. They are not the examples above.
- $0 · $0.01 · settlement-verified · Unclaimed (bazaar)
$0.01/screen. Screen any name against OFAC, EU, and UK sanctions (UN included) plus Wikidata-derived PEP watchlists — fuzzy matching, instant JSON verdict. Compliance in one call, one of 155 Relaystation tools on one balance — relaystation.ai - A Hyperliquid account's fee schedule and trailing volume, for any 0x address · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's fee schedule and trailing volume, for any 0x address. - A Hyperliquid account's historical account value and PnL across… · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's historical account value and PnL across day/week/month/all-time windows, for any 0x address. A Hyperliquid account's historical account value and PnL across day/week/month/all-time windows, for any 0x address. - A Hyperliquid account's HYPE staking summary (delegated/undelegated/pending),… · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's HYPE staking summary (delegated/undelegated/pending), for any 0x address. A Hyperliquid account's HYPE staking summary (delegated/undelegated/pending), for any 0x address. - A Hyperliquid account's perpetuals state — open positions, margin summary and… · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address. A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address. - A Hyperliquid account's recent trade fills (up to 2000) with price, size, fee… · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's recent trade fills (up to 2000) with price, size, fee and closed PnL, for any 0x address. A Hyperliquid account's recent trade fills (up to 2000) with price, size, fee and closed PnL, for any 0x address. - A Hyperliquid account's resting open orders with frontend metadata, for any 0x… · $0.01 · settlement-verified · Unclaimed (bazaar)
A Hyperliquid account's resting open orders with frontend metadata, for any 0x address. A Hyperliquid account's resting open orders with frontend metadata, for any 0x address. - Add business days while skipping weekends and full-day Public or Bank holidays;… · $0.005 · settlement-verified · Unclaimed (bazaar)
Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained. Add business days while skipping weekends and full-day Public or Bank holidays; Optional and HalfDay observances are retained. - Agent Guild paid read (fraud_check): collusion suspicion scores, reasons and… · $0.005 · settlement-verified · Unclaimed (bazaar)
Agent Guild paid read (fraud_check): collusion suspicion scores, reasons and cluster identifiers Use when an autonomous agent needs to: list agents at or above a minimum collusion suspicion score; review flagged agents and their collusion suspicion reasons. Agent Guild paid read (fraud_check): collusion suspicion scores, reasons and cluster identifiers Use when an autonomous agent needs to: list agents at or above a minimum collusion suspicion score; review flagged agents and their collusion suspicion reasons. - Agent-ready satellite observations for any coordinates · $0.025 · settlement-verified · Unclaimed (bazaar)
Agent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis. - AgentWire service card for webhook inbox relay and web fetch infrastructure · $0.001 · settlement-verified · Unclaimed (bazaar)
AgentWire service card for webhook inbox relay and web fetch infrastructure. - Aggregated perp market state: OI-weighted mark/index price, open interest,… · $0.01 · settlement-verified · Unclaimed (bazaar)
Aggregated perp market state: OI-weighted mark/index price, open interest, funding, per-venue breakdown and freshness across 7 live venues. Aggregated perp market state: OI-weighted mark/index price, open interest, funding, per-venue breakdown and freshness across 7 live venues.
Related pages
Questions
Which APIs are on the Base page?
Live listings that advertise Base. When a listing has network records, advertised Base is required. When it has none, the listing network field is used, and Base is the usual value.
Can an agent pay a Base API with no key?
Yes. The provider returns HTTP 402 and the agent pays in USDC on Base over x402. No API key and no buyer account. If the listing also advertises Solana or Algorand, that is shown on the listing, not assumed here.
What does settlement-verified mean on Base?
A paid route with an on-chain receipt. PayAPI Market paid that route from its own wallet. The receipt link is the transaction. It covers the paid route only.