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pro.aemb/agent-embassy

https://aemb.pro/mcp
● healthy model-context-protocol-mcp

Agents pay for work and prove it. Verified checks $0.15, recovery $1.00. USDC on Base via x402.

Category
model-context-protocol-mcp
Chains
base, eip155:42161, eip155:8453
Price
$0.1500–$222.0000 USDC

Quality grade

How grading works
B+ 69.9 / 100
Availability 20.0 / 20
Endpoint responded (HTTP 200)
Payability 15.0 / 15
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 12.7 / 35
17 distinct payers, 112 USDC transfers in the last 30 days; the wallet is shared by 2 listings, so each is credited 1/2
Performance 10.0 / 10
Last probe answered in 198 ms (full marks at 200 ms or less)
Readiness 12.2 / 15
Agent readiness 81/100
Owner verified 0.0 / 5
Nobody has claimed this listing yet
Endpoint last checked 19 h ago. On-chain activity last read 3 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 81/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B+, 69.9/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 10/10 Payment requirements carry a payee, a mainnet network and a price.
Live 402 challenge 20/25 Endpoint reachable; its 402 challenge was seen earlier (198 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 32/32 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 26 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 1/5 not seen in a source for over 30 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (198 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. It also feeds 15 points of the x402 quality grade.

Compared with peers

Against 10,082 reachable x402 APIs in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.

Readiness
Higher than 60% of peers
This listing 81 · peer median 78
Latency
Faster than 52% of peers
This listing 198 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Live 402 challenge −5 — Answer the paid path with a valid 402 challenge.
    Now: Endpoint reachable; its 402 challenge was seen earlier (198 ms).
  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
  • Freshness + modern flags −4 — Keep the listing current in the registry or source it comes from.
    Now: not seen in a source for over 30 days; declares x402.

How many agent tools actually work · All statistics

Paid endpoints

26 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

https://aemb.pro/v1/recovery/register

Escrow an encrypted recovery blob: stored opaquely — we cannot decrypt it — for operator review, signed receipt proving its hash; quorum_rules govern release. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/check/ping

Your conditions, one fetch: status, substring, JSON value — signed pass/fail receipt. Default status 200. Public proof: check_url_sealed. Watch: check_url_changes. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/check/prove

Proof anyone can verify: one fetch, transcript sealed in a signed receipt — HTTP 200 at that moment, fixed at 200. Your own conditions instead: check_url_custom. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/check/proveit-verified

GPU price, sealed proof: snapshot, cheapest ask/class, signed receipt. type defaults ondemand; omit gpu = all classes. Raw: compute_spot_prices. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/trust/report

Buy/don't-buy verdict on an x402 endpoint: probed unpaid, signed PROCEED, VERIFY_FIRST, or DO_NOT_PAY. Terms: trust_preflight. Action gate: trust_assurance. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/preflight/check

Before paying: who is paid, what's delivered, what changed — signed verdict against your policies. Free quote: dry_run=true. Endpoint verdict: trust_report. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/markets/compute/history

GPU market memory: cheapest and median asks per class, in a signed receipt. limit defaults to 50. Live: compute_spot_prices. Moves: compute_alerts. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/markets/compute/alerts

GPU price moves that matter: significant spot moves, in a signed receipt. limit defaults to 25. Live snapshot: compute_spot_prices. Past: compute_history. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/research/paper

The research paper: $222.00; $444.00 with the provenance pack — paper plus its proof. bundle defaults to paper; prior receipt: $222.00 upgrade. Licensed to your wallet. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/assurance/check

Action gate: endpoint, action, amount, permissions probed unpaid — ALLOW, RESTRICT, ASK_HUMAN, or QUARANTINE. Verdict: trust_report. Terms: trust_preflight. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/agent-id/issue

Issue an Agent ID: attestation binding a pubkey to a verified principal — unverifiable are refused. validity_days defaults to standard. Verify: agentid_verify. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/agent-id/verify

Agent ID state — valid, revoked, expired, or unknown — chain + envelope included. Unknown IDs: unknown, never error. Issue: agentid_issue; extend: agentid_renew. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/agent-id/revoke

Retire an Agent ID instantly, with no successor: sign as the revocation_signature field specifies — who signs, and how. Fresh ID, same chain: agentid_renew. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/agent-id/renew

Renew an Agent ID: fresh ID, same chain; the old retires. Sign like a revocation. validity_days defaults to standard. Retire outright: agentid_revoke. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/copy/correct

$1.00 correction pass on your draft: formatting, links verified live, terms confirmed, leaks scanned — corrected copy + signed report. register sets the voice. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/give

Support the Embassy. Open-amount USDC gift, $0.01–$222. The signed quote binds your exact amount; receipt: patronage, never for work. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/cert

Prove a document existed: send its SHA256 hash — we never see it — for a signed, hash-chained attestation. document_name is an optional label. Live URLs: check_url_custom. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/diligence/pack

All checks, one call: liveness, content, TLS fingerprint, trust verdict, doc timestamp — one signed receipt. document_hash optional. One check: the tool alone. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/watch

'Tell me when it changes': a standing URL check — receipt and charge only on change. check_interval_hours defaults to 24. One-time check: check_url_custom. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/attest

Notarize work done anywhere: submit evidence; we verify it and mint a signed receipt. evidence_urls + evidence_hash optional. Document's existence: attest_document. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/inbox/buy

Inbox Clearance license: $222.00 once, use it forever — no subscription, no contract. Your own agent runs the clearance pass on your own Gmail; we never hold your credentials and never see your mail. The license key in your receipt unlocks the pass tools. POST the tool inputs as JSON to paid_url wit

https://aemb.pro/v1/shelf

Shop an idea: delayed scan — a ticker, two compared, or a theme — expressions fitting your budget, freshness-labeled, signed receipt. budget_usd omitted: uncapped. Ideas only — no orders placed. POST to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/kits/farcaster

Farcaster from zero: first casts, frame spec, launch checklist in one fill-in template with a signed receipt. On Nostr instead: nostr_kit. agent_wallet optional, on the receipt. POST to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/kits/nostr

Nostr from zero: first notes, profile, relays, launch checklist in one fill-in template with a signed receipt. On Farcaster instead: farcaster_kit. agent_wallet optional, on the receipt. POST to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

https://aemb.pro/v1/directory/rankers

Skip the sweep: the ranked directory of ranking surfaces — methods, integrity, freshness, our standing — in a signed receipt. Omit surface = full directory. POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402

GET https://aemb.pro/v1/markets/compute/spot

Compute market snapshot — observed spot prices: cheapest rentable ask per GPU class in USD/hour. $0.25 per query via x402 USDC on Base, Arbitrum One, or Algorand. Asks are ephemeral — re-observe before any decision. Paid output (shape only, no values): {market, generated_at, classes: [{gpu_class, ch

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://aemb.pro/mcp  # expect HTTP 402 Payment Required (about 0.15 USDC/call)
MCP endpoint
https://aemb.pro/mcp
/.well-known/x402.json
https://aemb.pro/.well-known/x402

Listed in

Directories this entry was found in.

mcp since 2026-09-24 x402scan since 2026-09-25 a2a since 2026-10-08 x402 since 2026-10-08