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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 505–540 of 1,919
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.
Intel intel.twzrd.xyz
70%

Pre-payment guard for x402 agents: free POST /v1/intel/preflight before spending, paid signed V6 trust receipt after. Evaluate any counterparty BEFORE paying — 0.05 USDC buys the proof (Solana mainnet). POST /v1/intel/preflight is free, no …

paid API offline x402
$0.05 · 30d 2 tx
Api api.babyblueviper.com
70%

invinoveritas /signals/full — the live Hyperliquid perps read our own bot enters on, recomputable per coin from the raw metrics we return (funding + 24h delta,

paid API live l402
$0.29 · 30d 12 tx
Sandbox sandbox.node4all.com
70%

Node4All Fortune — deterministic fortune reading derived from the x402 payment authorization nonce. Flagship demo of the Node4All x402 v2 payment flow. Operator: Node4All (https://node4all.com). Currency: USDC on Base.

paid API x402
$0.16 · 30d 17 tx
Lst-Health lst-health.naber-research.com
70%

LST peg health for JitoSOL and INF on Solana. Includes market vs redemption basis, 7d trend, Meteora pool stats, and Kamino borrow rates.

paid API x402
$5.05 · 30d 5 tx
A2A-Artifact-Handoff-Staging a2a-artifact-handoff-staging.onrender.com
70%

Compile agent outputs against a receiver contract and return a verified handoff package.

paid API x402
$0.01 · 30d 1 tx
Blocksize Market Data mcp.blocksize.info
65%

Agent-native institutional crypto, FX, and metals market data through listed x402-paid per-call routes.

paid API finance x402
$0.02 · 30d 5 tx
Find or Verify fov.brij.fi
65%

Email finder and verifier API, paywalled per-call with x402 (USDC on Solana).

paid API data x402
$0.30 · 30d 6 tx
GDELT News Intelligence API news-x402.com
65%

AI-friendly JSON API for global news intelligence built on GDELT. Provides recent news, sentiment, geographic distribution, translingual coverage, and entity graph endpoints via x402 payments on Base USDC.

paid API data x402
$0.21 · 30d 11 tx
TradeOS Crypto Intelligence tradeos.tech
65%

Plain read-only crypto intelligence APIs for agents, dashboards, screeners, and research workflows.

paid API finance x402
$0.01 · 30d 1 tx
AgentLair agentlair.dev
65%

AgentLair is identity, trust, and infrastructure for AI agents. Anonymous x402-payable endpoints: pay 0.001 USDC for an A2A AgentCard trust audit, 0.005 USDC to resolve an agent handle to its DID + JWKS, 0.01 USDC to query a trust score, or…

paid API ai x402
$0.02 · 30d 20 tx
Crest Wallet Intelligence data.crestsystems.ai
65%

Counterparty intelligence for the agent economy. Profile any x402 buyer or Base/EVM wallet before you transact: whale score, behavioral cluster, x402 spend graph, top services, and risk level. Plus on-chain and crypto market data (prices, g…

paid API live data x402
$1.04 · 30d 113 tx
BrazilMCP api.brazilmcp.dev
65%

Brazilian company data for AI agents, paid per call in USDC (x402 v1+v2) on Base. Official-source KYB: Receita Federal registry lookup by CNPJ or name ($0.005), sanctions screening across the 5 federal lists ($0.02) and a full due-diligence…

paid API offline data x402
$0.89 · 30d 8 tx
BridgeNode bridgenode.cc
65%

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP server, Solana USDC, gas-free micropayments. No API keys. Free models included. Models: DeepSeek, GLM, Kimi, MiniMax, gpt-oss. Chat completions and inference. Live …

paid API offline ai x402
$0.02 · 30d 11 tx
ip402.xyz ip402.xyz
65%

Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.

paid API live data x402
$0.66 · 30d 62 tx
Vibes-Coded Agent Tool API vibes-coded.com
65%

Pay-per-call JSON Outcome APIs for AI agents via HTTP 402 (x402 USDC). Solana primary; Base ExactEvm (eip155:8453) with USDC EIP-712 extra.name/version. ~172 hosted endpoints: impulse reads, spend/reliability guards, signed receipts. No sig…

paid API verification x402
$1.12 · 30d 4 tx
SolProbe api.solprobe.xyz
65%

On-chain intelligence for Solana traders and agents, priced per call over x402. Token risk scans and safety grades, trending and smart-money discovery, wallet intel, launch and graduation radar, exit and cross-chain exit checks, news signal…

paid API offline finance x402
$0.59 · 30d 10 tx
minia2a — Agent Infrastructure & Intelligence minia2a.uk
65%

x402-native API platform for AI agents: web scraping with real browser, crypto market intelligence, knowledge storage & recall, x402 service discovery across 25K+ endpoints, and data transformation. 80+ endpoints via x402 on Base.

paid API offline ai x402
$0.60 · 30d 19 tx
The Bot Wire thebotwire.com
65%

10 real-time data wires for AI agents: breaking news (40 sources), SEC EDGAR filings, CVEs/security advisories, US federal regulations, severe weather alerts, earthquakes, new arXiv AI papers, Fed/ECB announcements, Hacker News, and cloud p…

paid API data x402
$1.26 · 30d 251 tx
Recurrence Expander s1.oddments.ai
65%

Turn RFC 5545 RRULEs and cron expressions into exact UTC instants. IANA timezones and daylight saving are handled correctly. The two hard cases are flagged by name. A spring-forward time that never happens is flagged nonexistent. A fall-bac…

paid API data x402
$0.10 · 30d 5 tx
rue rue.mossgate.dev
65%

render any url or raw html to pdf, png or jpeg via headless chromium. ssrf-guarded. pay per call in usdc via x402.

paid API other x402
$5.82 · 30d 7 tx
mossgate api.mossgate.dev
65%

onchain trust api for ai agents: token risk verdicts (ok/caution/danger) and wallet reputation on base, paid per call in usdc via x402. no signup.

paid API other x402
$5.82 · 30d 7 tx
FastScrape Microservice Node fastscrape.benlab.download
65%

Web Scraping, PDF Extraction, Data Processing

paid API ai x402
$3.28 · 30d 7 tx
stable-enrich-git-shafu-stableenrich-exa-b-f22424-merit-systems.vercel.app stable-enrich-git-shafu-stableenrich-exa-b-f22424-merit-systems.vercel.app
65%

Exa Search - Neural search across the web

paid API x402
$744.07 · 30d 27,657 tx
stable-jobs-git-ben-test-agentcash-router-pr-212-merit-systems.vercel.app stable-jobs-git-ben-test-agentcash-router-pr-212-merit-systems.vercel.app
65%

Search job postings by filters

paid API x402
$27.14 · 30d 160 tx
stable-enrich-git-shafu-stabledomains-pork-25b57c-merit-systems.vercel.app stable-enrich-git-shafu-stabledomains-pork-25b57c-merit-systems.vercel.app
65%

PDL Person Enrich — career history, emails, phone. Requires one of: `email`, `profile` (LinkedIn URL), or `first_name` + `last_name` + (`company_name` OR `company_domain`). `{ first_name, last_name }` alone returns 400. Prefer `email` when …

paid API x402
$744.07 · 30d 27,657 tx
stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app
65%

Exa Contents - Retrieve content from URLs

paid API x402
$744.07 · 30d 27,657 tx
slug-generator.api.klymax402.com slug-generator.api.klymax402.com
65%

Generate a URL-friendly slug from text

paid API x402
$7.40 · 30d 1,342 tx
url-shortener.api.klymax402.com url-shortener.api.klymax402.com
65%

Shorten a URL and return the shortened version

paid API x402
$7.40 · 30d 1,342 tx
ez-qr-generator.com ez-qr-generator.com
65%
paid API x402
$0.00 · 30d 3 tx
api.optranslations.com api.optranslations.com
65%
paid API x402
$6.01 · 30d 8 tx
openwebninja-x402.vercel.app openwebninja-x402.vercel.app
65%

Search Yelp businesses by query and location.

paid API x402
$0.17 · 30d 17 tx
signal-engine-production-d88d.up.railway.app signal-engine-production-d88d.up.railway.app
65%

Sandboxed Python code execution via E2B

paid API x402
$0.01 · 30d 10 tx
x402-services-production.up.railway.app x402-services-production.up.railway.app
65%

Tokenized-stock rich/cheap signal on Robinhood Chain: compares the onchain DEX token price vs the real equity's last close vs the Lighter perp mark, with each pairwise spread % and a directional NAV-convergence verdict. Send { ticker, thres…

paid API x402
$0.00 · 30d 1 tx
apify-api-git-br-apify-typed-input-schemas-merit-systems.vercel.app apify-api-git-br-apify-typed-input-schemas-merit-systems.vercel.app
65%

Start the "Google Search Results (~$0.05/1K Results)" Apify actor (scraperlink/google-search-results-serp-scraper). 🔥 ~$0.05/1K results ($0.50/1,000 SERPs) 🔥 **CHEAPEST** Google Search Results (SERP) Scraper with real-time SERP data and sup…

paid API x402
$2.58 · 30d 21 tx
permit-api-production-7375.up.railway.app permit-api-production-7375.up.railway.app
65%

Address-level building-permit intelligence. One call, one address returns normalized permit history, activity signals, and a decision-ready verdict with cited public records. Covers san francisco, seattle, austin, nyc, chicago, los angeles,…

paid API offline x402
$1.07 · 30d 4 tx
agentcash-fortune-demo3.vercel.app agentcash-fortune-demo3.vercel.app
65%

Random fortune — fixed price; x402 exact or MPP one-shot

paid API x402
$0.00 · 30d 1 tx