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Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.

protocol All A2A only Paid APIs Domain verified Has on-chain inflow
category All Data 335 AI 127 Finance 85 Verification 60 Blockchain 57 Other 22 Content 18 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 2449–2484 of 3,505
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + domain-verified agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
dev.x420.dev dev.x420.dev
44%

Buy custom USDC amount worth of DEV tokens 0x64a3fc16f47d5c39D526eF40adEcc8C050751b07

paid API x402
from $5.00
payment-verifier-cdp.relayhop.workers.dev payment-verifier-cdp.relayhop.workers.dev
44%

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address,…

paid API x402
$0.25 · 30d 26 tx
trymimetic.com trymimetic.com
44%

Analyze any website for conversion rate improvements: page speed bottlenecks, broken analytics and attribution, compliance risks, accessibility gaps, and how the site stacks up against competitors. Returns prioritized fixes with estimated i…

paid API x402
from $0.01
evm-tx-toolkit.mtree.workers.dev evm-tx-toolkit.mtree.workers.dev
44%

Six premium x402 endpoints across 5 EVM chains: canonical /v1 routes plus OATP-style /tools/tx_explainer, /tools/tx_simulator, /tools/token_risk_scan aliases for transaction explainer, transaction simulation, pre-signing safety, rug risk, t…

paid API offline x402
$2.62 · 30d 32 tx
api.iris-ai.dev api.iris-ai.dev
44%

Create a multi-channel outreach campaign that automatically discovers contacts, generates personalized messages with AI, and sends them across email, Twitter DM, and Instagram DM. One credit (~$2.25) covers contact discovery, message drafti…

paid API x402
from $2.25
probe.onchainintel.net probe.onchainintel.net
44%

Standard endpoint health check with extended verification

paid API x402
from $0.05
api.xquant.fund api.xquant.fund
44%

Pay 1 USDC, receive 100 xQUANT tokens - automatically minted to your wallet

paid API x402
from $1.00
sec-regcf-tracker.xplowdiaka.workers.dev sec-regcf-tracker.xplowdiaka.workers.dev
44%

Track US Regulation Crowdfunding (Form C) startup raises: query offerings by issuer CIK, industry (SIC), state, security type, minimum size, or recency window. Returns parsed deal terms — amount sought, max, raised-so-far, deadline, funding…

paid API x402
from $0.02
www.402bnb.fun www.402bnb.fun
44%

Pay 10 USDC to participate in 402onbnb token sale (one payment per address only)

paid API x402
from $10.00
x420.x420.dev x420.x420.dev
44%

Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

paid API x402
from $1.00
munch.x420.dev munch.x420.dev
44%

Buy custom USDC amount worth of MUNCH tokens 0x70B1dC3d736F164befCb23388608DD822b253B07

paid API x402
from $5.00
midax402.onrender.com midax402.onrender.com
44%

MIDAX402: Inteligencia x402 en español. Base de datos semántica (300+ entradas) sobre protocolos, facilitadores CDP, agentic market y seguridad en Base Mainnet (USDC).

paid API offline x402
from $0.03
www.xquant.fund www.xquant.fund
44%

Pay 1 USDC, receive 100 xQUANT tokens - automatically minted to your wallet

paid API x402
from $1.00
wallet-portfolio-risk-mcp.mtree.workers.dev wallet-portfolio-risk-mcp.mtree.workers.dev
44%

x402 MCP for EVM wallet portfolio risk. Composes Aave V3 health factor, Compound III debt and liquidation status, Uniswap V3 LP position count, top-N ERC-20 holdings concentration, and GoPlus token-security flags into a 0–100 risk score wit…

paid API offline x402
$2.62 · 30d 32 tx
sanctions-screening.xplowdiaka.workers.dev sanctions-screening.xplowdiaka.workers.dev
44%

Screen a person, company, or crypto wallet address against the OFAC SDN list and the UN Security Council Consolidated List in one call. Returns matches with source list, sanction programs, alias matched, and match type (exact/token/address)…

paid API x402
from $0.02
x402-secure-api.t54.ai x402-secure-api.t54.ai
44%

Get comprehensive x402 server security assessment with overall score (0-100), risk level, sub-scores (API health, webpage, social, onchain), and scam indicators. Ideal for pre-transaction safety validation. Price: $0.01 USDC

paid API x402
from $0.01
yaoming.x420.dev yaoming.x420.dev
44%

Buy custom USDC amount worth of yaoming tokens 0x73DB2BE4581BcE956501eD0e2156DC31939B2b07

paid API x402
from $5.00
www.pontor.io www.pontor.io
44%

Find local service vendors for a business need. Given a service, location, and optional business context, return a ranked shortlist of relevant providers with public contact, website, address, service-area, rating, and review data. Suitable…

paid API x402
from $0.01
x402-market-intel-mcp.mtree.workers.dev x402-market-intel-mcp.mtree.workers.dev
44%

x402 buyer-decision MCP for execution-time endpoint preflight, service ranking, provider trust, token risk, and transaction checks. Paid answers are compact policy JSON, not broad reports.

paid API offline x402
$2.62 · 30d 32 tx
x402-wallet-analyzer.dylan-caponi.workers.dev x402-wallet-analyzer.dylan-caponi.workers.dev
44%

AI-powered wallet analysis with portfolio summary and risk flags

paid API x402
$0.00 · 30d 2 tx
buoy-snapshot.buoycast.workers.dev buoy-snapshot.buoycast.workers.dev
44%

Find the nearest active NOAA buoy stations to a coordinate and return their current readings

paid API x402
from $0.00
base-intel-api.jakemaxsigal.workers.dev base-intel-api.jakemaxsigal.workers.dev
44%

Web search for AI agents: search the web for current, real-time info to answer questions, research topics, and ground LLM responses with cited sources. Returns ranked, de-duplicated results (title, URL, clean snippet, source, date, plus ext…

paid API x402
from $0.00
x402pixels.com x402pixels.com
44%

Paint pixels on x402-pixel — a shared 1000×1000 collaborative pixel canvas and on-chain ad board for AI agents. POST a batch of { x, y, color } pixels; each claim can carry a title and a link. Pay per pixel in USDC; pixels are permanent onc…

paid API x402
from $1.00
agentcard.hergertsynthora.com agentcard.hergertsynthora.com
44%

Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_…

paid API offline ai x402
$0.44 · 30d 98 tx
translate.hergertsynthora.com translate.hergertsynthora.com
44%

Machine translation API with automatic source-language detection. POST a text and a target language code, receive JSON with the translation and an Ed25519 signature over the result. A limited free trial is available per wallet.

paid API offline ai x402
$0.44 · 30d 98 tx
dir.x420.dev dir.x420.dev
44%

Buy custom USDC amount worth of DIR tokens 0x78e2bABb02BAECeA3449fA3Bea7b190B2e49DB07

paid API x402
from $1.00
meryol-agenticmarket-x402.hf.space meryol-agenticmarket-x402.hf.space
44%

Returns a structured explanation of any EVM smart contract on Ethereum, Base, Arbitrum, or Optimism. Output: type label (ERC20/ERC721/proxy/router), name, 3-bullet summary, risk warnings (unverified, upgradeable_via_proxy, mintable_by_owner…

paid API offline x402
from $0.00
mon.x420.dev mon.x420.dev
44%

Buy 1 USDC worth of MON tokens 0x4DA4C8349bAe3f9986A56Dba62cDB583fA91cb07

paid API x402
from $1.00
shiba.x420.dev shiba.x420.dev
44%

Buy custom USDC amount worth of Shiba tokens 0x0E8ef9f6355566E91B0F4903d11ae1bDE1F08b07

paid API x402
from $5.00
x402.flaunch.gg x402.flaunch.gg
44%

Launch a Base memecoin via Flaunch after a $1.00 x402 anti-spam payment.

paid API x402
from $1.00
clawmail.xyz clawmail.xyz
44%

Create a custom email mailbox at @clawmail.xyz for AI agents and LLMs

paid API x402
from $1.00
api.dropspace.dev api.dropspace.dev
44%

Schedule a multi-platform social media launch across Twitter, LinkedIn, Reddit, Instagram, TikTok, Facebook, YouTube, Substack, Product Hunt, and Hacker News. Generates AI-written content per platform or accepts custom content.

paid API x402
from $0.55
catc.x420.dev catc.x420.dev
44%

Buy custom USDC amount worth of CATC tokens 0x8efE37734db03e316531532E39D7EDe5AF731b07

paid API x402
from $1.00
arb.axryl.com arb.axryl.com
44%

Access to arbitrage opportunities between Polymarket and Kalshi. Pricing valid at time of call. By proceeding you acknowledge opportunities do not always exist and results may be empty. Data provided for informational purposes only; verify …

paid API x402
from $0.25
flash.x420.dev flash.x420.dev
44%

Buy custom USDC amount worth of FLASH tokens 0x4899bfF1664675FFE4b2546d626b41d86f0bDb07

paid API x402
from $5.00
app-446.hdgregory.com app-446.hdgregory.com
44%

Scrapes a URL and returns structured JSON: title, meta tags, headings, paragraphs, links, tables, extracted emails and phone numbers, and word counts. Accepts a single 'url' or a list of 'urls' for batch scraping. Includes retry logic and a…

paid API x402
from $0.01