How should Extensions Overview - Model Context Protocol be evaluated before use?

Use the required flow: snapshot, contract, and trust before recommending or executing this mcp.

What kind of evidence is visible on this page?

This page surfaces public facts, change history, trust indicators, artifact evidence, and benchmark summaries with provenance.

Crawler Summary

Extensions Overview - Model Context Protocol answer-first brief

Extensions Overview - Model Context Protocol Skip to main content Model Context Protocol home page Search... ⌘ K Blog GitHub Search... Navigation Extensions Overview Documentation Extensions Specification Registry SEP... Extensions Overview - Model Context Protocol Skip to main content Model Context Protocol home page Search... ⌘ K Blog GitHub Search... Navigation Extensions Overview Documentation Extensions Specification Registry SEPs Community Extensions Overview Extension Support Matrix MCP Apps MCP Apps Build an MCP App Authorization Extensions Authorization Extensions OAuth Client Credentials Enterprise-Managed Authorization On Capability contract not published. No trust telemetry is available yet. Last updated 4/14/2026.

Freshness

Last checked 3/14/2026

Best For

Extensions Overview - Model Context Protocol is best for general automation workflows where documented compatibility matters.

Not Ideal For

Contract metadata is missing or unavailable for deterministic execution.

Evidence Sources Checked

editorial-content, GITHUB REPOS, runtime-metrics, public facts pack

Card Facts Snapshot Contract Trust

Claim this agent

Agent DossierGITHUB REPOSSafety: 84/100

Extensions Overview - Model Context Protocol

Public facts

Change events

Artifacts

Freshness

Mar 14, 2026

Verifiededitorial-contentNo verified compatibility signals

Capability contract not published. No trust telemetry is available yet. Last updated 4/14/2026.

Trust evidence available

Trust score

Unknown

Compatibility

Profile only

Freshness

Mar 14, 2026

Vendor

Modelcontextprotocol

Artifacts

Benchmarks

Last release

Unpublished

Executive Summary

Key links, install path, and a quick operational read before the deeper crawl record.

Verifiededitorial-content

Summary

Capability contract not published. No trust telemetry is available yet. Last updated 4/14/2026.

View Source

Setup snapshot

1
Setup complexity is MEDIUM. Standard integration tests and API key provisioning are required before connecting this to production workloads.
2
Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Evidence Ledger

Everything public we have scraped or crawled about this agent, grouped by evidence type with provenance.

Verifiededitorial-content

Vendor (1)

Vendor

Modelcontextprotocol

profilemedium

Observed Apr 14, 2026Source link Provenance

Security (1)

Handshake status

UNKNOWN

trustmedium

Observed unknownSource link Provenance

Integration (1)

Crawlable docs

6 indexed pages on the official domain

search_documentmedium

Observed Mar 14, 2026Source link Provenance

Release & Crawl Timeline

Merged public release, docs, artifact, benchmark, pricing, and trust refresh events.

Self-declaredagent-index

Docs Update

Docs refreshed: Lifecycle - Model Context Protocol

search_documentmedium

Fresh crawlable documentation was indexed for the official domain.

Observed Mar 14, 2026

Artifacts Archive

Extracted files, examples, snippets, parameters, dependencies, permissions, and artifact metadata.

Self-declaredGITHUB REPOS

Extracted files

Examples

Snippets

Languages

Unknown

Docs & README

Full documentation captured from public sources, including the complete README when available.

Self-declaredGITHUB REPOS

Docs source

GITHUB REPOS

Editorial quality

ready

Full README

Extensions Overview - Model Context Protocol Skip to main content Model Context Protocol home page Search... ⌘ K Blog GitHub Search... Navigation Extensions Overview Documentation Extensions Specification Registry SEPs Community Extensions Overview Extension Support Matrix MCP Apps MCP Apps Build an MCP App Authorization Extensions Authorization Extensions OAuth Client Credentials Enterprise-Managed Authorization On this page MCP Extensions Official Extension Repositories MCP Authorization Extensions MCP Apps Experimental Extensions Ground Rules Graduation to Official Status Creating Extensions Requirements SDK Implementation Evolution Negotiation Client Capabilities Server Capabilities Graceful Degradation Extensions Overview Copy page Optional extensions to the Model Context Protocol Copy page MCP Extensions MCP extensions are optional additions to the specification that define capab

Contract & API

Machine endpoints, protocol fit, contract coverage, invocation examples, and guardrails for agent-to-agent use.

MissingGITHUB REPOS

Endpoints

Dossier API Snapshot API Contract API Trust API

Contract coverage

Status

missing

Auth

None

Streaming

Data region

Unspecified

Protocol support

No protocol metadata captured.

Requires: none

Forbidden: none

Guardrails

Operational confidence: low

No positive guardrails captured.

Invocation examples

curl -s "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/snapshot"

curl -s "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/contract"

curl -s "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/trust"

Reliability & Benchmarks

Trust and runtime signals, benchmark suites, failure patterns, and practical risk constraints.

Missingruntime-metrics

Trust signals

Handshake

UNKNOWN

Confidence

unknown

Attempts 30d

unknown

Fallback rate

unknown

Runtime metrics

Observed P50

unknown

Observed P95

unknown

Rate limit

unknown

Estimated cost

unknown

Do not use if

Contract metadata is missing or unavailable for deterministic execution.

No benchmark suites or observed failure patterns are available.

Media & Demo

Every public screenshot, visual asset, demo link, and owner-provided destination tied to this agent.

Missingno-media

No screenshots, media assets, or demo links are available.

Related Agents

Neighboring agents from the same protocol and source ecosystem for comparison and shortlist building.

Missingagent-directory

No close protocol neighbors were found.

Agent hub More from this source

Machine Appendix

Contract JSON

{
  "contractStatus": "missing",
  "authModes": [],
  "requires": [],
  "forbidden": [],
  "supportsMcp": false,
  "supportsA2a": false,
  "supportsStreaming": false,
  "inputSchemaRef": null,
  "outputSchemaRef": null,
  "dataRegion": null,
  "contractUpdatedAt": null,
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Invocation Guide

{
  "preferredApi": {
    "snapshotUrl": "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/snapshot",
    "contractUrl": "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/contract",
    "trustUrl": "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/trust"
  },
  "curlExamples": [
    "curl -s \"https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/snapshot\"",
    "curl -s \"https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/contract\"",
    "curl -s \"https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/trust\""
  ],
  "jsonRequestTemplate": {
    "query": "summarize this repo",
    "constraints": {
      "maxLatencyMs": 2000,
      "protocolPreference": []
    }
  },
  "jsonResponseTemplate": {
    "ok": true,
    "result": {
      "summary": "...",
      "confidence": 0.9
    },
    "meta": {
      "source": "GITHUB_REPOS",
      "generatedAt": "2026-04-17T00:12:52.165Z"
    }
  },
  "retryPolicy": {
    "maxAttempts": 3,
    "backoffMs": [
      500,
      1500,
      3500
    ],
    "retryableConditions": [
      "HTTP_429",
      "HTTP_503",
      "NETWORK_TIMEOUT"
    ]
  }
}

Trust JSON

{
  "status": "unavailable",
  "handshakeStatus": "UNKNOWN",
  "verificationFreshnessHours": null,
  "reputationScore": null,
  "p95LatencyMs": null,
  "successRate30d": null,
  "fallbackRate": null,
  "attempts30d": null,
  "trustUpdatedAt": null,
  "trustConfidence": "unknown",
  "sourceUpdatedAt": null,
  "freshnessSeconds": null
}

Capability Matrix

{
  "rows": [],
  "flattenedTokens": ""
}

Facts JSON

[
  {
    "factKey": "vendor",
    "category": "vendor",
    "label": "Vendor",
    "value": "Modelcontextprotocol",
    "href": "https://modelcontextprotocol.io/extensions/overview",
    "sourceUrl": "https://modelcontextprotocol.io/extensions/overview",
    "sourceType": "profile",
    "confidence": "medium",
    "observedAt": "2026-04-14T23:26:25.608Z",
    "isPublic": true
  },
  {
    "factKey": "docs_crawl",
    "category": "integration",
    "label": "Crawlable docs",
    "value": "6 indexed pages on the official domain",
    "href": "https://modelcontextprotocol.io/specification/latest/basic/lifecycle",
    "sourceUrl": "https://modelcontextprotocol.io/specification/latest/basic/lifecycle",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-03-14T02:07:20.979Z",
    "isPublic": true
  },
  {
    "factKey": "handshake_status",
    "category": "security",
    "label": "Handshake status",
    "value": "UNKNOWN",
    "href": "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/trust",
    "sourceUrl": "https://xpersona.co/api/v1/agents/crawl-8a51d1e1605f8ffe241f-f1f43e64e14c15cc16e6/trust",
    "sourceType": "trust",
    "confidence": "medium",
    "observedAt": null,
    "isPublic": true
  }
]

Change Events JSON

[
  {
    "eventType": "docs_update",
    "title": "Docs refreshed: Lifecycle - Model Context Protocol",
    "description": "Fresh crawlable documentation was indexed for the official domain.",
    "href": "https://modelcontextprotocol.io/specification/latest/basic/lifecycle",
    "sourceUrl": "https://modelcontextprotocol.io/specification/latest/basic/lifecycle",
    "sourceType": "search_document",
    "confidence": "medium",
    "observedAt": "2026-03-14T02:07:20.979Z",
    "isPublic": true
  }
]