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A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

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 310 AI 118 Verification 90 Finance 71 Blockchain 50 Other 27 Content 20 Compute 9 Storage 3 Media 3 Infrastructure 3 Social 2
sort Quality Revenue (30d) Recently updated Name
Showing 1405–1440 of 3,228
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
Pay-Per-Demo pay-per-demo.vercel.app
q 70

Pay once for virtual admission to Agentic Commerce Demo Day

paid API x402
$0.04 · 30d 4 tx
X402-Tools x402-tools.vercel.app
q 70

Search for upcoming concerts. Supports city, date range, genre, and artist filtering.

paid API x402
$0.28 · 30d 28 tx
Screenshot-Api-Production-Fe7E screenshot-api-production-fe7e.up.railway.app
q 70

Render an http(s) URL to a PDF (A4/A3/Letter/Legal/Tabloid) with print emulation; returns a JSON envelope with the PDF base64-encoded under pdf_base64, plus final_url, title, format, and size.

paid API x402
$0.48 · 30d 286 tx
Api api.signalfuse.co
q 70

Macro regime classification (risk-on/risk-off/neutral)

paid API x402
$1.30 · 30d 153 tx
X402 x402.coinstats.app
q 70

CoinStats current Fear & Greed Index — sentiment score from Extreme Fear (0) to Extreme Greed (100)

paid API x402
$0.07 · 30d 66 tx
Webpulse webpulse.waltsoft.net
q 70

Web content extraction and search. Get clean markdown from any URL or search results.

paid API x402
$1.53 · 30d 17 tx
Sitepulse sitepulse.waltsoft.net
q 70

Has this place been built on or cleared in the last 12 months? Sentinel-2 satellite change detection for any lat/lon: NDVI/NDBI deltas, change direction, confidence and the scene-by-scene evidence.

paid API x402
$1.53 · 30d 17 tx
Codepulse codepulse.waltsoft.net
q 70

Package security scanner — CVEs, license check, typosquat detection.

paid API x402
$1.53 · 30d 17 tx
Dnspulse dnspulse.waltsoft.net
q 70

Domain & DNS intelligence — records, SSL certs, subdomain discovery.

paid API x402
$1.53 · 30d 17 tx
Aurelius-Node-01 aurelius-node-01.onrender.com
q 70

Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, …

paid API x402
$0.50 · 30d 10 tx
Stable-Travel-Git-Migrate-Stabletravel-Router-140-Merit-Systems stable-travel-git-migrate-stabletravel-router-140-merit-systems.vercel.app
q 70

Get weather observations (METAR) for a specific airport

paid API x402
$91.41 · 30d 4,489 tx
Fittings fittings.sh
q 70

Validate an ISO 17442 Legal Entity Identifier checksum and extract its issuing LOU prefix.

paid API x402
$0.07 · 30d 21 tx
Readiness readiness.pay.zeroclick.io
q 70

Buy one website report ($3) with product=scan and url, or four competitor scans ($2) with product=comparison and an existing current-rubric runId. Cached results are free. On 202, poll statusUrl, then open reportUrl. If an accepted job fail…

paid API x402
$22.91 · 30d 208 tx
Sovereign-X402-Zeta sovereign-x402-zeta.vercel.app
q 70

Scrape a URL and return clean Markdown (via Firecrawl). Priced above Firecrawl's own per-scrape cost.

paid API x402
$0.30 · 30d 28 tx
X402-Gateway x402-gateway.ai
q 70

Paid ping — test the x402 payment flow end-to-end. Returns pong. Costs $0.001, exists so agents can verify their x402 wallet setup against this gateway cheaply.

paid API x402
$0.01 · 30d 9 tx
Recalls recalls.recordsforagents.com
q 70

Search US federal product recalls (CPSC consumer products, FDA food/drug/device enforcement, USDA FSIS meat/poultry recalls, NHTSA vehicle campaigns) by free-text query, firm name, date range, and source.

paid API x402
$0.12 · 30d 12 tx
Lemonade-Stand lemonade-stand.pt
q 70

A fresh lemonade, served as an illustrated collectible card: a 400x560 SVG image of a cold glass of lemonade with a straw and a lemon slice. One GET request, no input; returns the card as image/svg+xml.

paid API x402
$0.01 · 30d 3 tx
Oracles-Production oracles-production.up.railway.app
q 70

Full stored detail for a single SEC EDGAR merger / acquisition agreements filing by accession number (entityId like 'edgar:0000320193-26-000064') — company name, CIK, form type, filing date, and a direct link to the filing index.

paid API x402
$0.37 · 30d 9 tx
Ip-Geo-Api-Production ip-geo-api-production.up.railway.app
q 70

Geolocate an IPv4/IPv6 address: country, region, city, postcode, lat/lng, timezone, ISP, org, ASN, and a datacenter heuristic.

paid API x402
$0.48 · 30d 286 tx
Pixel402 pixel402.dylan-caponi.workers.dev
q 70

Generate 1-4 AI images from a text prompt using flux-schnell. $0.01 per image (price = $0.01 × num_outputs). Returns a job_id claim ticket; retrieve images free at /result/{job_id} (durable, no expiry).

paid API x402
$0.06 · 30d 15 tx
Deltasignal-Mcp-Gcp-Canary-Mhaufviwaq-Uc deltasignal-mcp-gcp-canary-mhaufviwaq-uc.a.run.app
q 70

Top stressed crypto issuers from the current DeltaSignal slice.

paid API x402
$1.22 · 30d 21 tx
Agent agent.gexlog.com
q 70

Lightweight gamma regime classification timeline. Returns regime, GEX flip, and key levels per date (max 90 days).

paid API x402
$0.08 · 30d 3 tx
Gateway gateway.drillr.ai
q 70

Paragraph-cited semantic search over indexed SEC filings

paid API x402
$0.01 · 30d 1 tx
App-446 app-446.hdgregory.com
q 70

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
$0.01 · 30d 7 tx
X402-Tools-Production-2755 x402-tools-production-2755.up.railway.app
q 70

Use to price a crypto portfolio or watchlist in one call. Market data for up to 50 symbols or 250 CoinGecko ids: price, 1h/24h/7d/30d change, 24h high/low, volume, market cap, rank, FDV, supply, and distance from all-time high/low; optional…

paid API x402
$0.14 · 30d 39 tx
Zeroclass zeroclass.pay.zeroclick.io
q 70

Pay-per-call: meter rules_read, $0.05 (service zeroclass). Unsigned/unpaid → 402 x402/MPP challenge; settle and retry. Returns transfer_partners + the Avios interchange bridge + active bonuses.

paid API x402
$0.65 · 30d 11 tx
Currency-Api-Production-4A8D currency-api-production-4a8d.up.railway.app
q 70

Current price, market cap, and 24h change for a single cryptocurrency by symbol or name (CoinGecko).

paid API x402
$0.48 · 30d 286 tx
Manyfish-Seller manyfish-seller.redcliff-d7368db1.westus2.azurecontainerapps.io
q 70

Try with $0.050 in free shared credit once per wallet. No deposit or on-chain transaction; wallet sign-in required. Credit, daily budget and availability apply. Analyze a selected Base token pool: USD liquidity, 24h volume, price change, ru…

paid API x402
$0.10 · 30d 8 tx
Aurelius-Node-02-Socal aurelius-node-02-socal.onrender.com
q 70

Aurelius Node 02: Real-time SoCal Pacific Gateway ground-truth oracle for cross-referential supply chain AI agents. Serves a live, actively updated 42-item matrix (13 subfields each) tracking Port of LA/LB vessel queues & gate turn times, A…

paid API x402
$0.50 · 30d 10 tx
Stablebase stablebase.dev
q 70

List all Stablebase projects owned by the calling wallet.

paid API x402
$0.07 · 30d 7 tx
Combinatorics combinatorics.openverbs.com
q 70

The n-th Catalan number Cₙ = C(2n, n)/(n+1), counting balanced bracketings, binary trees, and many other structures. Requires n ≤ 10000.

paid API x402
$19.91 · 30d 1,387 tx
Distribution distribution.openverbs.com
q 70

Student's t distribution with df degrees of freedom (> 0). `function` selects the density (pdf), cumulative distribution (cdf) or quantile / inverse-CDF.

paid API x402
$19.91 · 30d 1,387 tx
Geometry geometry.openverbs.com
q 70

Diameter, circumference and area of a circle from its radius.

paid API x402
$19.91 · 30d 1,387 tx
Matrix matrix.openverbs.com
q 70

Solve the linear system A·x = b for a square coefficient matrix A and vector b via Gaussian elimination with partial pivoting. A non-square A or a b of the wrong length is a clean 400. A singular system is NOT an error — it returns a succes…

paid API x402
$19.91 · 30d 1,387 tx
Preflight preflight.openverbs.com
q 70

Fetch any URL and, without paying, decode its x402 402 Payment Required challenge: price (atomic and formatted for known stablecoins), asset, network, payTo, resource, description, timeout and any input schema. Flags MPP and Bazaar discover…

paid API x402
$19.91 · 30d 1,387 tx
Random random.openverbs.com
q 70

Generate cryptographically-secure random bytes, returned as hex, base64 or base64url.

paid API x402
$19.91 · 30d 1,387 tx