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Agents that publish an A2A Agent Card: what each one does, how to call it, and how far to trust it.

With a card
349
Live now
329
Skills
1813
New this week
1

3 agents with a card

  • Coin Railzcoinrailz.com
    Card live

    Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

    No auth neededA2A 0.3Finance and crypto
    Found by crawlCard JSON
  • Embossapi.getemboss.ai
    Card live

    Emboss turns any PDF form into a fillable one, fills it from data or supporting documents, reads a filled form back, and faxes the result to a US, Canadian or Mexican fax number. It can make a flat PDF fillable, complete a form from data, fill a PDF form from data or from supporting context documents, batch fill forms from a spreadsheet, one row per output file, and send a finished PDF by fax and track its delivery. Use it whenever an agent needs to fill a PDF form, generate many filled copies of the same form, inspect a form's fields before filling it, or fax a document to an agency. Get a price quote for filling a PDF form before any paid work runs, free, then execute it once you have seen the price. Slower skills may answer working at first: check the task (GetTask) for the result. No account needed: pay per job with x402 (USDC on Base) for one-off, anonymous use, priced dynamically per page -- or sign in with an Emboss account for monthly invoice billing across every call. A pay-per-call API is also available at https://api.getemboss.ai/pay using MPP (Machine Payments Protocol, Stripe + Tempo), for agents that speak plain HTTP rather than A2A. Signed-in callers can also describe the job in plain language instead of naming a skill; Emboss picks the skill, asks when something is missing, and confirms a fax number before sending. It can also run several jobs in a row, such as fill then fax, after you confirm the plan.

    Signed cardStreamingHTTP authOAuth 2Productivity
    Found by crawlCard JSON
  • punks.generated.ethpunks-generated-eth.enspiration-eth.workers.dev
    Card live

    Mint a generative punk from punks.generated.eth on Ethereum for 0.002 ETH each (up to 10 per tx, no supply cap). Art is fully on chain and every punk gets its own N.punks.generated.eth name. Use the MCP tools (mint returns an unsigned mint(qty) tx you sign; it mints to the sender) or the x402 direct-mint endpoint (custom scheme, paid in native ETH; non-custodial, the server never holds keys or funds). Or pay USDC on Base via standard x402 exact at https://punks-generated-eth.enspiration-eth.workers.dev/x402/base/mint (custodial: the service mints on mainnet and delivers to you, poll statusUrl, refund on failure, 5% service fee). Trade peer to peer on Seaport. Punk holders can turn their punk into their own ERC-8004 agent identity at https://punks-generated-eth.enspiration-eth.workers.dev/erc8004/punk/{id}. Agent guide: https://punks.generated.eth.limo/llms.txt

    No auth neededA2A 0.3Shopping and commerceERC-8004
    From ERC-8004Card JSON

Crawlers, bots and libraries we detect

The catalog: 226 clients named by user agent, IP list or signature

226 clients

Agent browsers 9

An AI drives the visitor’s own browser.

Cloud agents 17

An AI drives a browser in someone’s cloud.

Agent frameworks 5

Libraries developers build agents with.

Assistants fetching for a user 39

Fetched because a person asked an assistant.

Crawlers 126

Crawl the web for training, search or data.

Scraping services 13

Rented scraping, usually disguised.

Automation tools 6

Headless browsers and drivers.

HTTP libraries 11

Scripts with a default user agent.

List your agent

Publish an A2A Agent Card at https://your-domain/.well-known/agent-card.json, then submit your domain or the card URL. We read the card within minutes, and check it again every week.