In-depth architectural comparison of the Affset and Agent Discovery Doctor MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Affset
Developer Tools · Local stdio
Quality: 55/100 (Good) | Auth: No auth required
Agent Discovery Doctor
Developer Tools · Remote HTTP/SSE
Quality: 55/100 (Good) | Auth: No auth required
Verdict Summary: Choose Affset if you need specialized Developer Tools tools running via a local process. Choose Agent Discovery Doctor if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Affset when:
You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Show the tenant this server is bound to: namespace, API base, derived dashboard URL, and (when readable) company / timezone / custom API domain. Read-only.
get_stats
Traffic stats grouped by a dimension (date, campaign, zone, country, sub1–5, advertiser, publisher, …), optionally narrowed with `advertiser_email`/`publisher_email` filters (one user, any group_by). Returns clicks, conversions, CR, payout, media cost and ROI as a table. `paid_only` defaults to tru…
list_campaigns
List campaigns (status / name filter, pagination).
get_campaign
One campaign's full record — every field (untruncated offer URL, exact schedule, budgets/pacing, silent flag, payout goal type) plus its targeting rules and payout rules, in one call.
list_zones
List traffic-source zones (status / name filter, pagination, linked source).
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Affset is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Agent Discovery Doctor belongs to Developer Tools using remote streaming HTTP/SSE transport. Select Affset when you need capabilities focused on developer tools and Agent Discovery Doctor when you require tools for developer tools.
List team members (email, role, manager). **Never returns API tokens.
create_team_member
Invite a team member (owner, manager, publisher, advertiser, publisher_manager, advertiser_manager). A scoped manager key can only create its own managed role, self-assigned. Returns the new API key **once** — `list_team` never shows it again. **Dry-run by default**; `confirm: true` to apply.
create_campaign
Create a campaign from an advertiser email, offer URL, geo, payout and name. Defaults: CPA / rate 0, **paused**, global payout rule, and a ready tracking link (linked source template when configured; otherwise `source_click_id={clickid}` + sub placeholders). **Dry-run by default**; `confirm: true`…
set_campaign_status
Run** or **pause** a campaign (`action: "run" \
update_campaign
Partial update (name, offer URL, status, rate, budgets, dates, …). **Dry-run by default**; `confirm: true` to apply. Prefer `set_campaign_status` for run/pause.
create_zone
Create a traffic-source zone (name + optional postback/site/traffic-back URLs, optional `traffic_source_id` link). Always created `active`. **Dry-run by default**; `confirm: true` to apply.
update_zone
Partial update (name, status, URLs, `traffic_source_id`). **Dry-run by default**; `confirm: true` to apply. Pass `null` to clear a URL or unlink the source.
TAKES NO ARGUMENTS. POST {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} to https://www.pathwren.workers.dev/mcp/doctor — the answer is the whole agent-discovery catalogue checked against THIS host — every document this server tracks, whether this host serves it, its size and content type, which ones are missing, and the part only this server can add: the named clients it has watched ask for each file, when, and the status that request took. There is nothing to fill in: the input schema is literally empty, `arguments: {}` and no `arguments` key at all both work, and the subject is a file this host already publishes, so the answer does not depend on you at all. No key, no account, no OAuth, no session to open first, read-only, and nothing for you to invent. Nothing is fetched to build it — no request leaves this edge, and none is made to you. whoami and example are here too and take nothing either. Every other tool on this server wants a file pasted in; this one wants nothing. The siblings answer one question each under the tool named beside them: /mcp (whoami), /mcp/lint (whoami), /mcp/triage (no_arguments_triage_this_hosts_own_crawler_log), /mcp/robots (no_arguments_lint_this_hosts_robots_txt), /mcp/netcheck (no_arguments_report_the_crawler_ip_ranges_this_host_mirrors), /mcp/markdown (markdown_lane_self_report). Example: the complete call, exactly as written, nothing to fill in — {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} returns a present/missing verdict per tracked document with its byte size, the group each belongs to, the score out of the catalogue, and the observed askers per document with the date and status each one got.
whoami
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — POST that to https://www.pathwren.workers.dev/mcp/doctor and the answer is the user-agent you sent, the class this host's own instrument books it as, whether we have logged you here before — and the part only this server can answer: which of the discovery documents this catalogue tracks (llms.txt, the agent card, mcp.json, apis.json, oauth-protected-resource…) a client like yours has been observed asking THIS host for, when, and what status it took. Takes no arguments. Safe to call. Deterministic. Touches no third party. Nothing is fetched to build it: every fact comes from the headers on your own request or from a file this host already publishes. Only this server answers the last part — its five siblings answer one other question each about you, same empty arguments, each under the tool named beside its path: /mcp (whoami), /mcp/lint (whoami), /mcp/triage (no_arguments_triage_this_hosts_own_crawler_log), /mcp/robots (no_arguments_lint_this_hosts_robots_txt), /mcp/netcheck (no_arguments_report_the_crawler_ip_ranges_this_host_mirrors), /mcp/markdown (markdown_lane_self_report) on https://www.pathwren.workers.dev. Example: arguments={} returns your user-agent, your address, the class we book you as, whether we have seen you here before, and which agent-discovery documents this host has watched a client like yours ask for — the dates, and the status each request took.
example
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"example","arguments":{}}} — POST that exact body to https://www.pathwren.workers.dev/mcp/doctor and you are done: free, read-only, no API key, no account, no consent prompt, nothing for you to invent, and what comes back is this server's own worked example — validate_llms_txt, run for real on a canned input from this host's own data — so you see the exact shape of an answer before you send anything of yours. Takes no arguments. Safe to call. Deterministic. Touches no third party. Runs this server's own worked example end to end — validate_llms_txt on a four-line llms.txt held as a constant in this file: it exercises the H1, the blockquote summary and an H2 link section, which is the whole format — and it fetches nothing, from us or from anyone — and returns exactly the structuredContent a real call returns, not a mock and not a description of one. Use it to see the shape of an answer before you decide what to send. The input is canned from this host's own data; no URL of yours is fetched and no third party is touched. Example: arguments={} runs validate_llms_txt with {"text":"# Site\n\n> One line.\n\n## Docs\n\n- [Guide](https://e.com/g): start here."} and returns its real answer.
check_discovery_documents
FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — Probes 22 documents agents and trust indexes ask for — llms.txt, agent card, owners.json, oauth metadata, mcp.json, apis.json, openapi, robots, sitemap — as served, missing, gated or 200-with-HTML soft-404, and says who asks for each missing one. Refuses private, ephemeral and its own hosts. Example: host='example.com'.
explain_document
FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — One catalogue entry: what the document is for, the named clients observed asking this host for it with dates and the status they took, what a 404 costs, and the spec URL. No argument lists all 22. Example: name='owners.json' names the bot that asks for it twice.
validate_llms_txt
FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — Checks pasted llms.txt against the format: one H1, a blockquote summary, H2 sections of `- [name](url): notes`. Errors and warnings with line numbers and fixes, plus the parsed links. Text in, nothing fetched. Example: text='# Site' warns it has no summary and no sections.
llms_txt_from_sitemap
FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — Paste sitemap.xml, or one URL per line, and get a draft llms.txt: URLs grouped into H2 sections by path, titles from slugs, lastmod kept, and a TODO wherever only you can write the sentence. A sitemap index is reported as one. Example: xml='https://e.com/docs/a\nhttps://e.com/blog/b'.
validate_agent_card
FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — Validates a pasted /.well-known/agent-card.json against the nine fields A2A marks required and each skill's id/name/description/tags, and warns on capabilities declared true that a reader will then try. Example: json='{"name":"a"}' returns the eight missing fields.
