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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 433–468 of 1,904
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.
Voxsift-X402 voxsift-x402.fly.dev
70%

Transcribe a public HTTPS audio or video URL into structured JSON with timestamps, optional speaker diarization, confidence metadata, and actual-duration settlement.

paid API x402
$0.13 · 30d 4 tx
Gateguard-X402 gateguard-x402.fly.dev
70%

Evaluate a specific flight for disruption risk and return a deterministic stay-put, monitor, or rebook-now decision. Use when an agent needs to decide whether a traveler should keep an itinerary or start recovery, with ranked replacement fl…

paid API x402
$1.25 · 30d 2 tx
Api api.agentshub.dev
70%

Live web search for AI agents. Returns normalized title, URL, and snippet results. Up to 10 results per call. $0.001 USDC per successful call on Base via x402.

paid API x402
$0.00 · 30d 3 tx
Zappi-Production zappi-production.up.railway.app
70%

Create a capped Spark spend pot. Fund from any chain, land USDB, agent can only spend what is in the pot. Promoters: pass ?ref=your-id to earn 30 of 50 bps (80% after Flashnet). Register at POST /affiliates.

paid API x402
$0.02 · 30d 2 tx
Microscrape-Production microscrape-production.up.railway.app
70%

MicroScrape: structured field extraction via caller-supplied CSS selectors

paid API x402
$0.01 · 30d 1 tx
Origin-Mcp origin-mcp.fly.dev
70%

Get current price and market data for any token on Base

paid API x402
$0.01 · 30d 4 tx
Clawhunter clawhunter.fun
70%

Draft a tweet, X reply, or freeform post in a chosen voice, AI-tells stripped. Optionally grounded in a crypto bounty's criteria and live project research via bountyId (Pump Fun GO and other venues).

paid API x402
$0.33 · 30d 17 tx
149-28-140-63 149-28-140-63.nip.io
70%

Observe a public HTTP(S) resource and return a timestamped content fingerprint.

paid API x402
$0.01 · 30d 1 tx
Qui-Outreach-Belong-Hereby qui-outreach-belong-hereby.trycloudflare.com
70%

Free machine-readable quote and JSON schema for a paid Base USDC transaction settlement verification service.

paid API x402
$0.03 · 30d 10 tx
Economy-Night-Disposal-Packs economy-night-disposal-packs.trycloudflare.com
70%

Free machine-readable quote and JSON schema for a paid Base USDC transaction settlement verification service.

paid API x402
$0.03 · 30d 10 tx
Need-Municipality-Retained-Jump need-municipality-retained-jump.trycloudflare.com
70%

Free machine-readable quote and JSON schema for a paid Base USDC transaction settlement verification service.

paid API x402
$0.03 · 30d 10 tx
Proteins-Wool-Mixing-Secretariat proteins-wool-mixing-secretariat.trycloudflare.com
70%

Free machine-readable quote and JSON schema for a paid Base USDC transaction settlement verification service.

paid API x402
$0.03 · 30d 10 tx
California-Deposit-Requests-Clips california-deposit-requests-clips.trycloudflare.com
70%

Free machine-readable quote and JSON schema for a paid Base USDC transaction settlement verification service.

paid API x402
$0.03 · 30d 10 tx
Soviet-Rica-Soldiers-Supplemental soviet-rica-soldiers-supplemental.trycloudflare.com
70%

Free machine-readable catalog for two paid agent utilities: Base USDC settlement proof and x402 resource repeat-demand versus one-shot usage analysis.

paid API x402
$0.03 · 30d 10 tx
Machineinbox machineinbox.com
70%

Create a one-hour verification inbox for a single signup code (10 messages, no replies)

paid API x402
$10.37 · 30d 5 tx
Pricing-State-Api pricing-state-api.replit.app
70%

$0.01 USDC required (x402 / Base) Returns current structured SaaS pricing: plan names, prices, billing period, features, and snapshot time. No API key needed. Pay with any x402-compatible wallet that holds USDC on Base. If your agent does…

paid API x402
$5.04 · 30d 5 tx
Thin-Seniors-Scsi-Merger thin-seniors-scsi-merger.trycloudflare.com
70%

Structural closure check: did a correction grow a mechanism? 0.01 USDC.

paid API x402
$0.11 · 30d 11 tx
Walk-Continually-Blog-Hall walk-continually-blog-hall.trycloudflare.com
70%

Structural closure detection: did a correction grow a mechanism? Verifies protocol improvements, mechanism growth, self-correction quality, agent learning verification. 0.01 USDC.

paid API x402
$0.11 · 30d 11 tx
Binx402 binx402.com
70%

Card BIN Lookup x402 — BIN lookup - resolve issuer, scheme, type and country for a card BIN

paid API x402
$1.14 · 30d 67 tx
Defi-Intel-Agent-Gateway defi-intel-agent-gateway.gg-neo15.workers.dev
70%

Audit a domain's DNS security posture: SPF, DKIM, DMARC, DNSSEC and TLS in one compact JSON. Returns a risk score. DO NOT use for domains you do not own. — $0.002 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Fre…

paid API x402
$1.49 · 30d 43 tx
Enough-Kate-Provide-Bennett enough-kate-provide-bennett.trycloudflare.com
70%

Live Base ERC-20 token balance with token symbol, decimals, atomic amount, human-readable amount, and current block.

paid API x402
$0.01 · 30d 5 tx
Lazareus lazareus.xyz
70%

Retrieves a previously stored object by its key (?key=...) and streams it back with its original Content-Type. Flat $0.01 per call, regardless of size.

paid API x402
$0.02 · 30d 22 tx
X402 x402.chaly.org
70%

AI image generation - low quality, 1K resolution.

paid API x402
$1.29 · 30d 16 tx
Api api.economicagent.net
70%

Hourly funding-rate history for one Hyperliquid perp (default last 168 hours). Useful for funding-regime analysis; returns the raw rate series.

paid API x402
$1.53 · 30d 2 tx
X-Research x-research.suzi.trade
70%

Up to 60 fetched posts from the Solana trending query plan.

paid API x402
$0.72 · 30d 8 tx
Botboard botboard.forgemesh.io
70%

Post a message to the board — a public, permanent, paid message wall. Every message costs $0.001 USDC, making economic proof-of-intent the spam filter. Messages are public, timestamped, and attributed to the paying wallet's transaction hash…

paid API x402
$0.00 · 30d 1 tx
Ipx402 ipx402.com
70%

IP Lookup — IP lookup - resolve geolocation, ASN, ISP and proxy status for an IP address

paid API x402
$1.14 · 30d 67 tx
Testmint testmint.myproceeds.xyz
70%

Purchase large amounts of testnet USDC instantly.

paid API x402
$1.00 · 30d 1 tx
Relay402 relay402.georgespring.workers.dev
70%

website trust report from a direct HTTPS fetch: status, response headers, HSTS, CSP and clickjacking protection signals.

paid API offline x402
$0.71 · 30d 20 tx
Api api.dev.hypercli.com
70%

HyperClaw plan purchase (variable amount, prorated by payment)

paid API x402
$1.08 · 30d 108 tx
Payai payai.agentstools.dev
70%

Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.

paid API x402
$6.38 · 30d 480 tx
Www www.studio-x.cc
70%

Studio X uncensored NSFW image generation with Flux Schnell

paid API x402
$8.80 · 30d 21 tx
Pulse-Api-Production-7Aae pulse-api-production-7aae.up.railway.app
70%

Standard Grok analysis from a server-fetched OKX spot snapshot.

paid API x402
$0.90 · 30d 7 tx
X402-Finance-Api-Production x402-finance-api-production.up.railway.app
70%

Bank of England base rate history with current rate and time series.

paid API x402
$0.34 · 30d 101 tx
Postcode-Api-Production postcode-api-production.up.railway.app
70%

Look up a UK postcode: coordinates, country, region, council, ward, parish, parliamentary constituency, and ONS/NHS area codes.

paid API x402
$0.34 · 30d 101 tx
Staging staging.402utils.com
70%

Validate an EU VAT number against the official VIES registry before invoicing, onboarding or a reverse charge. Per-country syntax is checked locally first, so invalid formats never touch the network. Valid numbers return the registered comp…

paid API x402
$0.14 · 30d 60 tx