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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 973–1008 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.
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
LiquidPad www.liquidpad.site
65%

Pay-per-request LiquidPad endpoints. Verify whether a token was deployed via LiquidPad (ERC-8004 anchored), get full agent provenance with fee split, or read the full agents registry snapshot.

paid API blockchain x402
from $0.00
Insurance DOI Bulletin Feed (x402) api.dynsuplabs.com
65%

Normalized state Department of Insurance bulletins and NAIC Model Law 668 adoption feed. Micropayment-gated REST API via x402 protocol. Supports Polygon (eip155:137) and Arbitrum (eip155:42161) chains with USDC payments. Pricing: $0.001/req…

paid API data x402
from $0.01
PopaDex Personal Finance Reference API app.popadex.com
65%

Read-only personal finance reference-data and calculation API for AI agents: tax estimates, disposable-income comparisons, sub-central tax rates, and social-security contribution data.

paid API finance x402
from $0.01
Greenwood Financial Intelligence api.greenwood.financial
65%

Real-time SEC EDGAR insider trading signals, congressional STOCK Act disclosures, FEC political contribution monitoring, and compound signals — cross-referenced and scored. Pay per query via x402 on Base mainnet. No subscriptions, no API ke…

paid API finance x402
from $0.00
Jeeves-DeepSeek jeeves.originaltorrent.com
65%

Pay-per-call DeepSeek chat API via x402 micropayments. No signup, no API keys -- just a USDC wallet on Base. Full chat completions endpoint compatible with any x402 client.

paid API ai x402
from $0.00
txdecode txdecode.com
65%

Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key.

paid API data x402
from $0.01
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
SNTL Helium Intelligence a2a.sntl.site
65%

Pay-per-query intelligence over the Helium DePIN network, settled on Solana. A datalake half a million records deep and growing — over a year of on-chain history, AI-enhanced and classified: threat heuristics, anomaly detection, yield-loss …

paid API offline blockchain a2a_x402
VIGIL mcp.vigil.codes
65%

Keyless onchain security scanner for Base. 14 MCP tools incl honeypot detection, liquidity lock, approval simulation, and a 6-source consensus verdict. Free core checks; premium tools via x402 USDC on Base.

paid API blockchain x402
from $0.01
AEO Audit API aeo.agentlair.dev
65%

Answer Engine Optimization audit — scores any website visibility in AI assistants (ChatGPT, Claude, Perplexity, Gemini). Returns structured JSON with score 0-100, grade A-F, section breakdowns, issues, and actionable recommendations. Checks…

paid API ai x402
from $0.25
The Nervous System (agent governance x402 API) api.100levelup.com
65%

External governance layer for agent systems by Levels Of Self. Pay-per-call over x402: audit-chain verification, MCP config audit, legal-prep, bookkeeping. USDC on Base, no signup.

paid API ai x402
from $0.01
NewsMesh api.newsmesh.co
65%

Real-time news API for AI agents. Search and filter articles from thousands of global sources.

paid API data x402
from $0.01
GPU Forge forge.parabellum.tech
65%

Pay-per-job GPU compute API. gpu.probe returns a live nvidia-smi GPU inventory ($0.01); llm.generate runs llama3.1:8b text generation ($0.05). USDC via x402 on Base and Polygon; accepts both standard signed-authorization payments (X-PAYMENT…

paid API compute x402
from $0.01
Tunelo Agent APIs agents.tunelo.co.za
65%

South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2.

paid API data x402
from $0.01
RelayShield api.relayshield.net
65%

Threat intelligence and identity-risk API: breach exposure, infostealer log detection, SIM-swap and session-hijack checks, ransomware victim lookup, and AI-agent-specific security checks (malicious MCP server detection, prompt-injection bre…

paid API data x402
from $0.10
MUGEN Radio mugenradio.com
65%

Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Bas…

paid API content x402
from $0.15
Producer by Suede Labs discovery.suedeai.ai
65%

AI music and video generation agent selling fixed-price, pay-per-request media jobs via x402 and Virtuals ACP on Base. Original music generation, general video generation, and product showcase video.

paid API ai x402
from $8.00
EVA MCP api.ai.everything.inc
65%

Ask Eva: the autonomous research desk for crypto, DeFi and global markets, from the Everything.inc ecosystem. Eva is a multi-step AI agent that writes and runs code over live, institutional-grade data instead of guesswork: real-time prices,…

paid API ai x402
from $0.01
MIND Protocol api.mindprotocol.xyz
65%

Paid Solana data cards for autonomous agents: price signals, wallet market intelligence, and risk scoring over x402 v2 and USDC.

paid API finance x402
from $0.01
timezone-toolkit timezone-toolkit.agishub.com
65%

Timezone converter, world clock, DST-aware date math and meeting scheduler for AI agents. Pay-per-call x402 endpoints (USDC on Base) covering timezone conversion, world clock / now-in-city, city or country to IANA timezone lookup, UTC offse…

paid API data x402
from $0.02
MeshPilot meshpilot.cc
65%

Text or image to production-ready 3D models (GLB, PBR textures, up to 1M triangles) in one API call. Built for AI agents: x402 USDC on Solana, settle-upfront with automatic refund on failure. Also auto-rigs models (skeleton + skinning) and …

paid API ai x402
from $0.10
fry.farm x402 Agentic Actions fry.farm
65%

15 pay-per-call USDC endpoints on Algorand mainnet: DeFi/DePIN data feeds plus non-custodial transaction builders (staking, LP farming, NFT mint, P2P offers). Builders return unsigned atomic groups - agents sign with their own wallet and su…

paid API blockchain x402
from $0.00
Sol Node Labs api.solnodelabs.com
65%

Pseudonymous pay-per-call crypto risk intelligence: deterministic Solidity triage, Base token risk screening, and vetted crypto bounty intelligence. USDC via x402 on Base and Solana; no account or API key.

paid API blockchain x402
from $0.01
Sippar Token Market Data sippar.network
65%

Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the require…

paid API data x402
from $0.10
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
Twitter/X Advanced Tweet Search twit.use.x402atlas.com
65%

Unofficial third-party bridge to X (Twitter) advanced search. One GET /search endpoint takes structured filters or raw X search syntax and returns up to 20 tweets per page as JSON, with author profile, engagement metrics and a pagination cu…

paid API data x402
from $0.01
ACP - Virtuals Protocol acp-x402.virtuals.io
65%

Agent Commerce Protocol (ACP) x402 endpoint by Virtuals Protocol on Base. GET /acp-budget serves ACP budget data behind an HTTP 402 paywall.

paid API ai x402
from $0.00
AnySpend x402.anyspend.com
65%

x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC.

paid API content x402
from $0.10
Holoworld $FIGHT Pass x402.holoworld.com
65%

Holoworld x402 mint endpoint on Solana. GET /api/mint mints the $FIGHT Pass for 50 USDC per request.

paid API blockchain x402
from $50.00
AInalyst ainalyst-api.xyz
65%

Paid HTTP 402 endpoint on Base from ainalyst-api.xyz. GET /click returns a response behind an x402 paywall.

paid API other x402
from $0.01
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
pogo-tb.nl -- Dutch Open Data (RDW/BAG/OV) api.pogo-tb.nl
65%

Dutch open-government data for AI agents via x402 on Base USDC: RDW vehicle records (incl. fuel type + CO2 emissions + APK inspection risk), BAG address and building lookups, OV public-transport departures, postcode search, reverse geocodin…

paid API data x402
from $0.00
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
BountySignal fortyeight-rescue.jaeber2se.chatgpt.site
65%

Source-verified developer bounty discovery, due-diligence briefs, and 30-day private GitHub alert feeds paid per call with x402 USDC on Base.

paid API data x402
from $0.05