Skip to content

Discover

Pay-per-call APIs over x402. Every call is paid in USDC and routed through vAPI with a receipt.

x402 payments to listed APIs

Onchain x402 payments to the APIs Call indexes.

Transactions

451.07k

Settled calls per day, past 30 days

Volume

US$15.60k

USDC volume per day, past 30 days

Buyers

4.01k

Paying addresses per day, past 30 days

Sellers

837

Paid listings per day, past 30 days
Top payer: 5% of transactions2,284 APIs listed, 11 vAPI verified, as of 02:47 UTCView every settled call
Show data
x402 payments to listed APIs by day, as of 02:47 UTC
BucketTransactionsVolumeBuyersSellers
Sep 270US$0.0000
Sep 280US$0.0000
Sep 290US$0.0000
Sep 300US$0.0000
Oct 10US$0.0000
Oct 20US$0.0000
Oct 30US$0.0000
Oct 40US$0.0000
Oct 50US$0.0000
Oct 60US$0.0000
Oct 70US$0.0000
Oct 80US$0.0000
Oct 90US$0.0000
Oct 100US$0.0000
Oct 110US$0.0000
Oct 120US$0.0000
Oct 130US$0.0000
Oct 140US$0.0000
Oct 159,207US$549.67307148
Oct 1642,188US$1,511.221,110334
Oct 1733,732US$1,322.60961325
Oct 1835,132US$1,020.181,054353
Oct 1926,256US$1,074.30904493
Oct 2031,920US$2,181.751,058377
Oct 2142,409US$1,424.471,318561
Oct 2247,903US$1,452.201,050409
Oct 2353,764US$2,123.671,220429
Oct 2439,550US$1,110.101,257391
Oct 2585,267US$1,768.891,756347
Oct 263,746US$56.35268151

Available now

Inspect callable endpoints and their trust signals. Use your browser wallet or vapi-network for native and external catalog APIs.

24 loaded

Verified Providers

11

APIs from providers vAPI has verified.

Exa

Verified by vAPI

api.exa.ai

Base

Return relevant web search results. Each request costs $0.007 in USDC on Base over x402.

Exa: settled calls per day, past 30d

$0.007per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Nansen

Verified by vAPI

api.nansen.ai

Base

Return smart-money token screening data. Each request costs $0.01 in USDC on Base over x402.

Nansen: settled calls per day, past 30d

$0.01per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Messari

Verified by vAPI

api.messari.io

Base

Return a crypto research chat completion. Each request costs $0.25 in USDC on Base over x402.

Messari: settled calls per day, past 30d

$0.25per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Kaito

Verified by vAPI

api.kaito.ai

Base

Return token sentiment data. Each request costs $0.60 in USDC on Base over x402.

Kaito: settled calls per day, past 30d

$0.6per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

o1 Launchpad

Verified by vAPI

api-staging.vapinetwork.ai

Base

Hosted by vAPI for o1.exchange. Calls cost $0.001–$0.05 USDC per call on Base over x402.

Provider failures aren't charged
o1 Launchpad: settled calls per day, past 30d

$0.001–$0.05per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

CoinGecko

Verified by vAPI

pro-api.coingecko.com

Base

Return cryptocurrency prices. Each request costs $0.01 in USDC on Base over x402.

CoinGecko: settled calls per day, past 30d

$0.005per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

The Graph

Verified by vAPI

gateway.thegraph.com

Base

Query onchain data from 20 Subgraphs: Uniswap, Aave, Aerodrome, ENS, Curve, Lido and more. Each request costs $0.01 in USDC on Base over x402.

The Graph: settled calls per day, past 30d

$0.01per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

StablePhone

Verified by vAPI

x402phone.dev

Base

Have an AI voice agent phone a US or Canadian number and carry out a task. Each call settles $0.54 in USDC on Base over x402.

StablePhone: settled calls per day, past 30d

$0.54per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

AgentMail

Verified by vAPI

x402.api.agentmail.to

Base

Create an agent email inbox. Each request costs $2.00 in USDC on Base over x402.

AgentMail: settled calls per day, past 30d

$2per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Dot

Verified by vAPI

api.usedot.xyz

Base

Return a private AI chat completion. Each request costs about $0.009 in USDC on Base over x402.

Dot: settled calls per day, past 30d

$0.006452per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Birdeye

Verified by vAPI

public-api.birdeye.so

Solana

Return Solana token prices, market data and on-chain trades. Each request costs $0.003 in USDC on Solana over x402.

Birdeye: settled calls per day, past 30d

$0.003per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

External

13

Not verified by vAPI: mirrored from external x402 catalogs or listed without review.

gas.apitoll.cloud/v1/base/gas

gas.apitoll.cloud

Base

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.

gas.apitoll.cloud/v1/base/gas: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
53
Volume, past 30d
US$0.05

lionx402.com/api/x402/wallet-screen-json

lionx402.com

Base

Cheapest OFAC SDN wallet screen for AI agents ($0.001). AML/KYT pre-pay gate: PASS/WARN/BLOCK before you settle any x402 counterparty. Keyless Base USDC, Ed25519-attested. Upsell: recheck $0.01 answers should I pay this wallet again (GO, HOLD, or STOP).

lionx402.com/api/x402/wallet-screen-json: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
180
Volume, past 30d
US$0.18

minifetch.com/api/v1/x402/preflight/url-check

minifetch.com

Base, Solana

Cheap robots.txt preflight check before you call the Minifetch /extract and /run/seo-page-audit endpoints: returns whether Minifetch may fetch a target URL (allow/deny) plus its crawl-delay. If blocked and the site is not yours try our external proxy routes. If blocked and the site is yours or to set a custom crawl-delay read https://minifetch.com/tutorials/unblock-minifetch Checks the URL as given — does not follow redirects. Supports GET & POST

minifetch.com/api/v1/x402/preflight/url-check: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
162
Volume, past 30d
US$0.28

rubric-protocol.com/v1/x402/hedera-facts/exchange-rate

rubric-protocol.com

Base, Solana

Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for agents that must prove what they knew when they acted.

rubric-protocol.com/v1/x402/hedera-facts/exchange-rate: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

quartermaster.surewhynot.app/v1/gas

quartermaster.surewhynot.app

Base, Solana

Current Base gas prices and a simple-transfer cost estimate for transaction planning.

quartermaster.surewhynot.app/v1/gas: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
149
Volume, past 30d
US$0.24

api.402rates.com/v1/ping

api.402rates.com

Polygon, Arbitrum, XDC, Base

Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/

api.402rates.com/v1/ping: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
59
Volume, past 30d
US$0.06

www.cultos.dev/services/http-header-audit

www.cultos.dev

Base, Solana

HTTP Header Audit

www.cultos.dev/services/http-header-audit: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

crypto.apitoll.cloud/v1/crypto/price

crypto.apitoll.cloud

Base, Solana

Latest crypto token prices by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): current spot price, token symbol, decimals, and a confidence score, for up to 50 coins in one call. Pass ?at=<unix> for the historical price at a point in time. Sourced from DefiLlama across every major chain.

crypto.apitoll.cloud/v1/crypto/price: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
403
Volume, past 30d
US$0.40

api.onesource.io/api/chain/network-info

api.onesource.io

Base

EVM network info - chain ID, block height, gas price, chain head age, and chain characteristics in one batched RPC call (eth_chainId + eth_blockNumber + eth_gasPrice + latest block header)

api.onesource.io/api/chain/network-info: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

api.onesource.io/api/chain/block-number

api.onesource.io

Base

Latest Ethereum block height - current chain tip via eth_blockNumber

api.onesource.io/api/chain/block-number: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
548
Volume, past 30d
US$0.55

api.onesource.io/api/chain/chain-id

api.onesource.io

Base

Ethereum chain ID (EIP-155) via eth_chainId - confirm which chain a network is on

api.onesource.io/api/chain/chain-id: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

rpc.nodeflare.app/base/x402

rpc.nodeflare.app

Polygon, Arbitrum, Base

Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.

rpc.nodeflare.app/base/x402: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
315
Volume, past 30d
US$0.32

rpc.nodeflare.app/robinhood/x402

rpc.nodeflare.app

Polygon, Arbitrum, Base

Robinhood Chain RPC (chain 4663): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units. One of the first independent x402 RPC providers for this chain.

rpc.nodeflare.app/robinhood/x402: settled calls per day, past 30d

$0.001per call

Transactions, past 30d
0
Volume, past 30d
US$0.00

Showing 24 of 1,041 APIs

Product menu

Product navigation and account controls

Theme

Create a free account to continue

Use a wallet to create or access your vAPI account.