💰 Paid API verification

VirtualSMS

virtualsms.io · virtualsms.io

Pay-per-call SMS verification and OTP receiving for AI agents - real carrier numbers across 145+ countries and 2500+ services, from $0.05 per code in USDC via x402, no account or API key. For signup testing, account verification, and privacy. Also number rentals, matching-country proxies, and a hosted MCP server.

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Verify the domain virtualsms.io via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

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Our probe of this card is currently failing

Last probe error: response not JSON

      
        Last attempt: 2026-08-19 11:08
      
        Last success: 2026-08-19
      
        Status: 200

Trust score

34/100

grade F · 9 criteria

Uptime

0.0%

31 direct probes · 30d

Observed inflow · 30d

—

no payment wallet declared

Dispute or improve this rating

F

Conformance score: 34/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

partial Live JSON-RPC 15/25

Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.

            How to earn +10 points
          

Respond live on JSON-RPC

Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.

Docs →

fail Protocol version 0/10

No protocolVersion in card.

            How to earn +10 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

fail Uptime track record 0/15

0/31 probes succeeded (0% uptime).

            How to earn +15 points
          

Stabilise uptime

We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.

Docs →

fail Skill declaration 0/10

No skills declared in card. Hard to route to.

            How to earn +10 points
          

Declare your skills

Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.

Docs →

partial Verified Identity 5/10

Provider declared: virtualsms.io (https://virtualsms.io). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 4/5

seen in upstream source within 0d

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime

0.0%

31 direct probes · 30d

Response

—

last direct probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base per call USD Third-party catalog Dispute or improve this rating

From $0.1000 per call

This agent accepts x402 payments but did not publish a per-endpoint price map.

Try it ↗ Opens the operator's playground / docs in a new tab.

Agent card	`https://virtualsms.io/.well-known/agent-card.json`
Provider	https://virtualsms.io
Docs	https://virtualsms.io

Discovered via

x402_list smithery

Health · last 30 probes

When	HTTP	Live JSON-RPC	Latency
2026-08-19 11:08:59	200	—	—
2026-08-18 20:22:28	200	—	—
2026-08-18 09:37:30	200	—	—
2026-08-18 02:05:23	200	—	—
2026-08-17 07:57:56	200	—	—
2026-08-16 20:54:55	200	—	—
2026-08-16 09:04:00	200	—	—
2026-08-16 03:06:34	200	—	—
2026-08-15 09:03:06	200	—	—
2026-08-15 02:39:11	200	—	—

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/virtualsms.io.svg)](https://agenstry.com/agents/virtualsms.io)
[![Verified Business](https://agenstry.com/badge/virtualsms.io/identity.svg)](https://agenstry.com/agents/virtualsms.io)
[![Uptime](https://agenstry.com/badge/virtualsms.io/uptime.svg)](https://agenstry.com/agents/virtualsms.io)
[![A2A version](https://agenstry.com/badge/virtualsms.io/protocol.svg)](https://agenstry.com/agents/virtualsms.io)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "_source": "x402_list",
  "slug": "virtualsms",
  "endpoint_count": 1,
  "attribution": "Data: x402-list.com (CC BY 4.0)"
}

Activity (audit trail)

Endpoints

Health · last 30 probes

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