Directory MCP server trends Method

AI agent trends: what breaks, what's missing, what agents need

71 public reports about AI agents and MCP, found by our research workers, and a sign-in health check of 809 remote MCP servers that we run ourselves. Two kinds of data, labeled separately.

Updated 2026-11-13 01:09 UTC (refreshes hourly). Every number is a count from our database; nothing is estimated. Measured = we observed it. Reported by research workers = a research worker found and summarized a public source; it counts reports, not users or traffic. JSON for agents: /api/trends (CC BY 4.0).

Key facts

Research findings Reported by research workers71 from 2 research runs (claude-research:2026-11-04: 35; claude-research:2026-11-11: 36)
Source dates2026-10-24 to 2026-11-11 (71 findings with a date)
Largest finding typeFailures: 41 of 71
Found in more than one run0 of 71
MCP servers health-checked Measured809 listed remote servers, latest probes 2026-11-11 16:10 UTC to 2026-11-12 07:57 UTC
Latest result442 reachable (55%), 350 need credentials (43%), 17 failed (2%)
Median response, reachable151 ms (n = 442)

What research workers found Reported by research workers

Each finding is one public source (mostly GitHub issues) that a research run found and filed under one type. Sample: 71 findings, source dates 2026-10-24 to 2026-11-11. This shows what people write about, not how often things happen.

Findings by type (n = 71)
  1. Failures41 (58%)
  2. Missing tools10 (14%)
  3. Wishes for a directory3 (4%)
  4. Trends12 (17%)
  5. Use cases5 (7%)
Findings by source type (n = 71)
  1. GitHub issue53
  2. Blog9
  3. News6
  4. Changelog2
  5. Hacker News1

Themes

Tags the research workers attached, counted across all findings (a finding can carry several tags; tags on fewer than 2 findings are left out). Not charted because nearly every finding has it: "mcp" (65 of 71).

Findings per tag, top 15 (n = 71 findings)
  1. claude-code16
  2. codex12
  3. oauth9
  4. mastra8
  5. security8
  6. auth6
  7. connectors6
  8. registry5
  9. timeout5
  10. windows5
  11. claude4
  12. crewai4
  13. directory4
  14. tool-selection4
  15. vercel-ai-sdk4
What the failures are about: tags on the 41 failure findings
  1. claude-code12
  2. codex11
  3. oauth9
  4. mastra7
  5. timeout5
  6. windows5
  7. auth4
  8. crewai4
  9. security4
  10. tool-selection4
  11. refresh-token3
  12. stdio3

Failures (41)

Source dateReported (our summary, first sentence)Source
2026-11-10In @ai-sdk/mcp over Streamable HTTP, a network-level failure (connection refused, connect timeout, DNS) on the 2026-07-28 server/discover probe is treated as a legacy server and falls back to initialize against the same unreachable…github.com/vercel/ai#24817
2026-11-10In the Claude Code VS Code extension, remote HTTP MCP servers that accept unauthenticated connections but only work fully with a Bearer token cannot be signed in: the MCP panel shows Reconnect/Clear authentication/Disable/Remove but no…github.com/anthropics/claude-code#108783
2026-11-10A user running the Todoist hosted MCP server (OAuth 2.1, rotating refresh tokens with reuse detection) across several parallel Claude Code sessions plus scheduled tasks reports the sign-in keeps getting revoked every few days.github.com/anthropics/claude-code#108794
2026-11-09After the Codex app bundled a newer codex-cli, large stdio MCP replies (e.g. a base64 resources/read of a big binary file) exceed the rmcp transport's new default line-length limit and are silently dropped.github.com/openai/codex#60383
2026-11-09In Codex CLI 0.167.0, when the first message of a session mentions a skill that declares an MCP server dependency, the 'Install MCP servers?' prompt is routed to the temporary title-generation thread, which rejects user interaction and…github.com/openai/codex#60406
2026-11-09In Claude Desktop's Code tab on Windows, a third-party plugin's MCP App preview card fails when its confirm button issues a tools/call; the call is rejected client-side and never reaches the MCP server, while calling the same tool from…github.com/anthropics/claude-code#108540
2026-11-09Remote MCP servers added as claude.ai connectors never refresh their tool list in a running Claude Code session after the server sends notifications/tools/list_changed (both 2025-era and 2026-07-28 delivery paths), while the same server…github.com/anthropics/claude-code#108596
2026-11-09Authorizing the HeyGen MCP connector from Claude Code's /mcp fails every time with 'Invalid redirect URI'.github.com/anthropics/claude-code#108607
2026-11-08CrewAI's MCP static tool filter compares configured names to sanitized tool names, so allow/block lists written with the names a server publishes (hyphens, camelCase) silently fail: an allow-list keeps no tools, and a block-list for a…github.com/crewAIInc/crewAI#9248
2026-11-08Report that the reference mcp-server-git runs Git with repository configuration intact, so a pre-planted core.fsmonitor or post-checkout/pre-commit hook executes code when ordinary MCP tools such as git_status or git_checkout are called.github.com/modelcontextprotocol/servers#5488
2026-11-07Mastra's MCPServer exposes agents as ask_<agent> tools, but the generated tool calls agent.generate without any memory thread or resource id, so a Memory-enabled agent served over MCP forgets everything between calls and MCP clients…github.com/mastra-ai/mastra#29673
2026-11-07Codex 0.167.0 (CLI and desktop) auto-declines MCP form-mode elicitation requests without showing the user a form, so an MCP server that asks for write confirmation (here a CRM contact update) reports the user declined.github.com/openai/codex#60158
2026-11-07Every 'claude mcp login' to a remote HTTP MCP server prints the SEP-2352 'no issuer stamp' warning even after a fresh successful login.github.com/anthropics/claude-code#108158
2026-11-06A long local Codex conversation on Windows stayed in a working state for a long time with little progress: tool calls that each finished in seconds were separated by multi-minute idle gaps, and status questions got no response.github.com/openai/codex#59849
2026-11-05In @mastra/mcp, tools rebuilt from cached definitions with toolsFromDefinitions() open their connection lazily on first execute(), but that handshake runs outside the call's request context, so a custom fetch that injects per-user…github.com/mastra-ai/mastra#29531

Showing 15 of 41, newest source first. All of them: /api/trends?items=1.

Missing tools (10)

Source dateReported (our summary, first sentence)Source
2026-11-10Feature request: Claude assigns MCP server icons heuristically from tool names and offers no way for server authors or users to set a custom icon.github.com/anthropics/claude-code#108788
2026-11-07Feature request for the OpenAI Agents SDK: a hook to compare an MCP server's listed tool definitions against an approved baseline (observe/review/enforce) because servers can change descriptions or schemas without a version bump, a…github.com/openai/openai-agents-python#5588
2026-11-04Feature request for project-specific connectors: the user wants a domain-specific MCP connector available only inside one Claude project (and the same MCP authorized with different scopes per project) rather than account-wide in every chat.github.com/anthropics/claude-code#107123
2026-11-04A user asks for connectors scoped to a single claude.ai Project.github.com/anthropics/claude-code#107123
2026-11-01A Claude Code user (2.1.316, Linux) asks for support for skills delivered over MCP.github.com/anthropics/claude-code#106550
2026-10-30An MCP tool call that continues as an MCP task can ask for input, for example an approval.github.com/mastra-ai/mastra#28986
2026-10-29Plugins in Anthropic's own marketplaces bundle many MCP servers.github.com/anthropics/claude-code#105932
2026-10-28@ai-sdk/mcp 2.0.86 rejects 2026-07-28 tool results with resultType 'input_required', even when an elicitation handler is registered.github.com/vercel/ai#24153
2026-10-28A Codex app user asks Codex to discover and call WebMCP tools that webpages register in the user's connected Chrome tabs.github.com/openai/codex#57853
2026-10-28Account-level claude.ai MCP connectors (Google Drive, Coupler.io, Supermetrics, Canva, semrush) are loaded into every Claude Code CLI and VS Code session, even when only needed on the web.github.com/anthropics/claude-code#105769

Wishes for a directory (3)

Source dateReported (our summary, first sentence)Source
2026-11-06Users of the official MCP Registry UI report that search does not match server descriptions, so servers can only be found by name or exact keyword.github.com/modelcontextprotocol/registry#1807
2026-11-05inferred: The census found that registry-declared auth headers did not match whether servers actually demanded credentials, and it names a tool picker that filters on the declared-headers field as a failure case.digitalapplied.com/blog/mcp-remote-server-health-census-november-2026
2026-10-30A directory operator asked for mcp.market to be listed under Resources in the MCP servers repo.github.com/modelcontextprotocol/servers#5415

Trends (12)

Source dateReported (our summary, first sentence)Source
2026-11-11The MCP reference servers repo shipped v2.4.0 with security fixes for server-filesystem (symlink/read races, move_file), mcp-server-git (repository Git config can no longer make the server run a program; tighter --repository…github.com/modelcontextprotocol/servers/releases/tag/v2.4.0
2026-11-10IBM and Microsoft announced Imagine Enterprise, an agent platform for building, running and governing industry-specific AI agents (initially financial services, insurance and retail), combining IBM Consulting's prebuilt agents with…news.microsoft.com/source/2026/11/10/ibm-and-microsoft-announce-a-new-ai-agent-platform-designed-for-industry-specific-transformation
2026-11-10At Adobe MAX 2026 Adobe announced native MCP support so third-party AI agents can work on native project files in Photoshop, Illustrator, Premiere and After Effects (preview), with layers and sequences staying editable; the integrations…creativeboom.com/news/adobe-max-2026-all-the-big-announcements
2026-11-10browser-use released 1.0, rebuilding the agent so the model writes Python in a persistent REPL directly on Chrome DevTools Protocol.github.com/browser-use/browser-use/releases/tag/1.0.0
2026-11-09Adversa's November MCP security digest summarizes research and advisories: a study scanning MCP servers across registries for undeclared filesystem capabilities produced coordinated advisories; it also covers cross-origin env…adversa.ai/blog/top-mcp-security-resources-november-2026
2026-11-08The same source matched vendor domains against the ChatGPT and Claude connector directories and found coverage is fragmented, with many vendors listed in only one directory; matching was by domain only so the source calls the numbers a…bigideasdb.com/mcp-use-cases
2026-11-05In the same Nov 5 registry census, adoption of the 2026-07-28 spec's stateless server/discover method was low among sampled streamable-HTTP endpoints; most responding servers still negotiated the older initialize handshake.digitalapplied.com/blog/mcp-remote-server-health-census-november-2026
2026-11-05A census of remote endpoints sampled from the official MCP Registry on Nov 5, 2026 sent each an unauthenticated initialize request: 550 completed the handshake, 338 asked for credentials, and 112 failed (DNS/TLS, timeouts, non-MCP…digitalapplied.com/blog/mcp-remote-server-health-census-november-2026
2026-11-02The same MCP Bits #6 issue reports that the Ruby MCP SDK reached Tier 1, making six Tier 1 SDKs.mcpbits.substack.com/p/mcp-bits-6
2026-11-02MCP Bits #6 (Nov 2, 2026) reports that SEP-3398 merged: the MCP spec now ships twice a year, on the last Tuesday of March and of September, with freezes and SDK betas before each.mcpbits.substack.com/p/mcp-bits-6

Showing 10 of 12, newest source first. All of them: /api/trends?items=1.

Use cases (5)

Source dateReported (our summary, first sentence)Source
2026-11-09UC Today's weekly roundup describes enterprise agent deployments: Zendesk employee-service agents answering access, policy, onboarding and IT requests across Slack and Teams, and Box Architect (launched Nov 5) for building agentic…uctoday.com/this-week-enterprise-ai-gets-serious-about-action
2026-11-09CreatorDB describes marketing teams using its MCP server with Claude to build in-house influencer tools instead of buying SaaS: discovery agents that turn a campaign brief into a ranked creator shortlist, vetting tools, competitor…manilatimes.net/2026/11/09/tmt-newswire/pr-newswire/creatordb-api-mcp-data-infrastructure-for-the-new-creator-economy/2465475
2026-11-09A perfume retailer (10ML) launched a keyless remote MCP server over its fragrance index so assistants like Claude, ChatGPT and Cursor can answer perfume questions; it is listed in the official MCP Registry and Claude's connectors…globenewswire.com/news-release/2026/11/09/3398379/0/en/10ml-launches-a-free-perfume-api-and-perfume-mcp-server-built-on-its-fragrance-index.html
2026-11-08A vendor lists 20 non-DevOps research jobs run through its MCP server in Claude and ChatGPT, with prompts and outputs: validating startup ideas against complaint data, competitor review teardowns, pricing SaaS acquisitions, ranking…bigideasdb.com/mcp-use-cases
2026-11-04In HN's 'Who wants to be hired? (November 2026)' thread, a developer lists PHI Guard MCP, a local-first MCP tool that scans for sensitive health information.news.ycombinator.com/item

Remote MCP servers: can an agent reach them? Measured

Every night we send each listed remote MCP server one unauthenticated server/discover or initialize request. We never send credentials and never call tools. Latest result for 809 servers:

Latest sign-in health check, 809 listed servers
  1. Reachable442 (55%)
  2. Needs credentials350 (43%)
  3. Failed17 (2%)
How the 350 servers that need credentials ask for them
  1. OAuth (protected-resource metadata found)323
  2. Bearer token19
  3. 401/403 with no auth details8
Why the 17 failed servers failed
  1. HTTP 4009
  2. HTTP 5002
  3. timeout2
  4. HTTP 4041
  5. HTTP 5231
  6. HTTP 5301
  7. reset1

Runs so far

Day (UTC)ReachableNeeds credentialsFailed
2026-11-1144234920
2026-11-12010

2 run days so far: too few to call a trend. This table grows nightly.

By category

Categories with at least 5 checked servers. Categories are assigned by our public keyword rules, so they are inferred, not reported by the publisher. Green reachable, yellow needs credentials, red failed.

CategoryCheckedReachableNeeds credentialsFailed
AI & agents18811667 (36%)5
Other1037229 (28%)2
Search & research956132 (34%)2
Payments & finance764726 (34%)3
Productivity & documents592732 (54%)0
Media & design531934 (64%)0
Communication481632 (67%)0
Analytics & marketing471134 (72%)2
Commerce, travel & location452915 (33%)1
Code & developer tools291512 (41%)2
Cloud & DevOps251015 (60%)0
Databases & data1679 (56%)0
Security1385 (38%)0
Browser automation1248 (67%)0

Method and limits

Data: /api/trends (compact) · with every finding · MCP server uptime and tool trends.