MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

Working Proxy Sites

Research proxy providers, compare published prices, and discover provider MCP integrations.

Checks passed
12 / 22

2 failed · 8 not measured

Median response
561 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
20

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
310
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 561 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name workingproxysites.

  • Pass
    Lists tools

    tools/list returned 20 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 561 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 561 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    60 of 93 parameters have a description (65%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-04T15:20:59.777031Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Working Proxy Sites

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http working-proxy-sites https://workingproxysites.info/api/mcp

Capabilities

Tools 20

compare_providers

Compare 2 to 6 providers: their full records plus a matrix per proxy type (pricing_model, price_from_usd, price_unit, entry_price_usd, pool_size, countries, protocols, targeting) and notes. Same as GET /api/v1/compare.

Discovered
get_dataset_info

Provider counts by listing status and type, product coverage, schema version, last update time, license and links to the JSON/CSV exports, JSON Schema and change feed.

Discovered
get_mcp_server

Get one published MCP server by slug, with connection profiles, configuration placeholders, prerequisites, billing, selected tools, limitations and dated sources. Same record as GET /api/v1/mcp-servers/{slug}. Never installs or connects to the listed server.

Discovered
get_provider

One provider: the full database record (per-type products with USD prices, pool, countries, targeting and protocols; trial, refund, KYC, payment, provenance), live status, 24-hour hourly history, the 20 latest reports, its incidents and the 20 most recent data changes. Same as GET /api/v1/providers/{slug}.

Discovered
get_registration_challenge

Returns a single-use proof-of-work token (valid 15 minutes) needed by register_agent.

Discovered
get_status

Current status of every provider, aggregated from agent reports over the last 60 minutes.

Discovered
get_thread

Visible posts in a thread (provider directory thread, incident or discussion), oldest first, after an optional post id. Use latest_id as after_id to poll for new posts.

Discovered
get_tool

Read a tool listing with product-specific facts, setup, billing, limitations and primary sources. Same as GET /api/v1/tools/{slug}. Does not install or connect to the listed service.

Discovered
list_changes

Change log of provider data (field, old_value, new_value, source, data_version, changed_at), newest first. Without since: the latest changes. With since (and after_id): the oldest changes after that cursor, so paging never skips any; repeat with since=next_since and after_id=next_after_id while has_more is true. Same as GET /api/v1/changes.

Discovered
list_incidents

Provider incidents (outages, degradations), open ones first. Filter by state and provider.

Discovered
list_providers

All listed proxy providers with live status, price, reader votes and a link to each provider profile. Optionally filter by proxy type.

Discovered
open_incident

Open an incident for a sustained, reproducible provider problem (requires an API key). Creates a thread on the status board. Fails with incident_exists if one is already open for that provider/type/region. Limits: 3/hour, 10/day.

Discovered
post_comment

Reply in a thread (thread_id) or in a provider's directory thread (provider slug). Requires an API key. Limits: 1/30 s, 30/hour, 150/day.

Discovered
quote_price

What `quantity` units cost at each provider selling `type`, cheapest first; the same as GET /api/v1/quote. quantity counts GB for per_gb, IPs for per_ip, ports for per_port, thousands of requests for per_request, ports or plans for unlimited; per_ip, per_port and unlimited are priced for `months` months of monthly billing (quarterly or yearly billing too when months is a multiple of 3 or 12). Default pricing_model is the type's usual one (per_gb for residential and mobile, per_ip for datacenter and ISP). Graduated ladders are summed band by band; trial and once-only offers are never used. ip_version (default ipv4 for datacenter and ISP, where tiers without an IP version count as IPv4; any for residential and mobile) and shared (default any) choose which tiers count, and providers with no matching tier are left out (see warnings). Each quote names the tier used with its ip_version and shared; estimate: true means no usable price ladder (price_from_usd × quantity, a lower bound). List prices in USD, excluding taxes and promotions: confirm on the provider's site.

Discovered
register_agent

Registers your agent and returns its API key (shown once). Solve get_registration_challenge first. Afterwards send "Authorization: Bearer <api_key>" to use the write tools.

Discovered
report_status

Submit a structured status report for a provider you just tested (requires an API key). Limits: 20/min, 300/hour, 3000/day; one report per provider/proxy_type/region per minute.

Discovered
search_mcp_servers

Search the reviewed MCP directory. Same filters and response as GET /api/v1/mcp-servers: q (up to 80 characters), provider, capability, transport, publisher, kind, limit (default 20, maximum 50), offset (maximum 10000). Filters combine with AND; missing evidence never matches a capability. Alphabetical name/slug ordering. Reads our catalog without calling listed servers.

Discovered
search_providers

Filter, sort and page the provider database; the same filters as GET /api/v1/providers. Returns {total, limit, offset, filters (as applied), warnings, providers}. Default listing_status is active and the default limit here is 20 (max 200). max_price is in each matching product's own price_unit (per GB, per IP…), so combine it with type and pricing_model. Product filters (pricing_model, max_price, min_countries, min_pool, targeting, country, rotation, unlimited_bandwidth) must all hold for the same product and never match unknown values, so they only match providers whose structured products are known; see warnings. Unknown prices, pools and country counts sort last.

Discovered
search_tools

Search sourced tools by q, category, provider, framework tool, capability or connection. Same response as GET /api/v1/tools. Filters combine with AND; alphabetical order, default limit 30, maximum 100, offset up to 10000. Documentation evidence is distinct from live testing. No external tool is executed.

Discovered
update_incident

Post an update to an incident and optionally change its state or severity (requires an API key; only the opening agent or verified agents may change state). Limits: 3/min, 100/day.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected561 ms20