{
  "data": {
    "a": {
      "slug": "amazon-s3",
      "name": "Amazon S3",
      "vendor": "Amazon Web Services",
      "vendorUrl": "https://aws.amazon.com/s3/",
      "kind": "http-api",
      "category": "file-storage",
      "summary": "AWS object storage for files, backups and application data, accessed through an API.",
      "url": "https://www.anchorterminal.com/tools/amazon-s3",
      "markdownUrl": "https://www.anchorterminal.com/tools/amazon-s3.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/amazon-s3.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/amazon-s3.json",
      "dns": "amazon-s3.grade.anchorterminal.com",
      "repo": "https://github.com/aws/aws-sdk-js-v3",
      "license": "Apache-2.0",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://s3.us-east-1.amazonaws.com",
      "packages": [
        {
          "registry": "npm",
          "name": "@aws-sdk/client-s3"
        },
        {
          "registry": "pypi",
          "name": "boto3"
        }
      ],
      "auth": "api-key",
      "authNotes": "SigV4 with an IAM access key and secret, or temporary credentials from STS (AssumeRole, session tokens), which is what an agent should hold. Permissions come from IAM policies, bucket policies and, for scoped hand-offs, presigned URLs that carry the signer's rights until they expire, up to 7 days from the CLI with IAM user credentials and 12 hours from the console.",
      "pricing": "usage",
      "pricingNotes": "S3 Standard $0.023 a GB-month for the first 50 TB, PUT, COPY, POST and LIST $0.005 per 1,000 requests, GET and SELECT $0.0004 per 1,000, Standard-Infrequent Access $0.0125 a GB-month, as read from AWS's price feed for US West (Oregon), published 2026-10-15; the pricing page's own tables load by script. Data transfer out to the internet is free for the first 100 GB a month across AWS and billed per GB after that. The pricing page also lists S3 Tables at $0.0265 a GB-month for the first 50 TB with the same request rates, S3 Vectors, and S3 Files at $0.30 a GB for high-performance storage. New AWS accounts get up to $200 in Free Tier credits over six months rather than a fixed S3 allowance, and since October 2026 most new customers sign up without a payment method (https://aws.amazon.com/s3/pricing/; https://b0.p.awsstatic.com/pricing/2.0/meteredUnitMaps/s3/USD/current/s3.json; https://aws.amazon.com/free/free-tier-faqs/).",
      "priceSummary": "$0.005 / 1k req",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 3700,
        "npmWeekly": 44802781,
        "pypiWeekly": 578449536,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.aws.amazon.com/AmazonS3/latest/userguide/",
      "capabilities": [
        "storage.object",
        "storage.s3",
        "storage.presigned",
        "storage.share"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "s3-compatible",
        "usage-priced",
        "enterprise",
        "eu",
        "typescript",
        "python",
        "webhooks"
      ],
      "lastRelease": "2026-09-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 77.3,
        "grade": "BB",
        "agentReady": true,
        "rank": 32,
        "ranked": true,
        "rankOf": 1510,
        "categoryRank": 3,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 83,
          "maintenance": 73,
          "payments": 30,
          "reliability": 80,
          "schema": 92,
          "security": 88,
          "transparency": 84
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-01"
        },
        "negative": 0,
        "verdict": "STS session credentials with session policies, so an agent can hold one prefix for an hour. Egress to the internet is billed per GB after 100 GB a month.",
        "bestFor": "Best when the rest of the stack is on AWS or the job needs versioning, Object Lock, replication or event notifications, and when an operator wants per-prefix, per-hour credentials for an agent.",
        "strengths": [
          "STS session credentials with session policies, so an agent can hold one prefix for an hour",
          "SLA of 99.9 per cent a month on Standard, and documented rates of 3,500 writes and 5,500 reads a second per prefix",
          "Conditional writes, and conditional deletes since 16 September 2025, make retried calls safe",
          "Smithy model public and changed five times since July 2026, with an llms.txt and Markdown twins for the user guide",
          "Versioning, Object Lock, lifecycle, replication and event notifications, which the S3-compatible clones only partly cover"
        ],
        "weaknesses": [
          "Egress to the internet is billed per GB after 100 GB a month",
          "The pricing page renders the Standard table by script, so an agent reading it sees no Standard rate",
          "Signup needs a person in a browser, though since October 2026 most new accounts aren't asked for a payment card",
          "No MCP server for general-purpose buckets; AWS's general MCP server reaches S3 through IAM credentials and generic API calls",
          "S3 in ME-CENTRAL-1 (UAE) and ME-SOUTH-1 (Bahrain) has been under service disruptions since March 2026, and AWS can't restore some data held there"
        ],
        "agentNotes": [
          "Hold STS session credentials scoped by a session policy, never a long-lived IAM user key",
          "Sign presigned URLs with credentials that outlive the URL; a URL signed with a one-hour session token dies with the token",
          "Send If-None-Match with * on PutObject so a retry can't overwrite a file another call wrote",
          "Track the Free plan's end date on a new account; when the plan expires AWS suspends the account and access to the stored objects",
          "On 503 SlowDown back off and spread keys over more prefixes, since each prefix gets 3,500 writes a second"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.4,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.3
          }
        ],
        "editorialScores": {
          "ergonomics": 83,
          "maintenance": 73,
          "payments": 30,
          "reliability": 80,
          "schema": 92,
          "security": 88,
          "transparency": 73
        },
        "provenanceScore": 94,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-01",
            "maintenance": "2026-11-01",
            "payments": "2026-11-01",
            "reliability": "2026-11-01",
            "schema": "2026-11-01",
            "security": "2026-11-01",
            "transparency": "2026-11-01"
          },
          "last": "2026-11-01",
          "lastMoved": "2026-11-01",
          "oldest": "2026-11-01",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY \\\n  aws s3 cp ./hello.txt s3://my-bucket/hello.txt --region us-east-1"
      },
      "letme": {
        "capability": "https://letme.dev/storage.object",
        "tool": "https://letme.dev/amazon-s3"
      },
      "sameCompany": [
        "amazon-bedrock-customization",
        "agentcore-code-interpreter",
        "amazon-textract",
        "aws-end-user-messaging",
        "amazon-sns",
        "amazon-eventbridge"
      ],
      "area": "everyday",
      "unitPrices": [
        {
          "item": "S3 Standard storage, first 50 TB",
          "unit": "gb-month",
          "usd": 0.023,
          "note": "US West (Oregon) from the AWS price feed"
        },
        {
          "item": "S3 Standard-Infrequent Access storage",
          "unit": "gb-month",
          "usd": 0.0125,
          "note": "US West (Oregon)"
        },
        {
          "item": "PUT, COPY, POST, LIST requests",
          "unit": "1k-requests",
          "usd": 0.005
        },
        {
          "item": "GET, SELECT requests",
          "unit": "1k-requests",
          "usd": 0.0004
        },
        {
          "item": "S3 Tables storage, first 50 TB",
          "unit": "gb-month",
          "usd": 0.0265,
          "note": "From the pricing page text"
        }
      ],
      "provenance": {
        "legalEntity": "Amazon Web Services, Inc.",
        "domain": "amazonaws.com",
        "domainRegistered": "2005-08-18",
        "endpointOnVendorDomain": true,
        "terms": "https://aws.amazon.com/service-terms/",
        "privacy": "https://aws.amazon.com/privacy/",
        "statusPage": "https://health.aws.amazon.com/health/status",
        "changelog": "https://aws.amazon.com/about-aws/whats-new/storage/",
        "securityTxt": "valid",
        "checked": "2026-11-01",
        "notes": [
          "The Service Terms (last updated 2026-10-30, re-read on 2026-11-01) name Amazon Web Services, Inc. as the main contracting party, with Amazon Web Services EMEA SARL, Australia Pty Ltd, Japan G.K., Korea LLC and India Private Limited for those regions, the entity list per the 17 October check.",
          "The S3 endpoints sit on amazonaws.com; the marketing and pricing pages on aws.amazon.com.",
          "aws.amazon.com/.well-known/security.txt has Contact, Policy and Encryption fields and Expires 2027-10-16T16:25:03.000Z on 2026-11-01. It had expired on 2026-09-24 and was still expired on 2026-10-04.",
          "Standard storage and request prices were read from AWS's price feed for US West (Oregon), published 2026-10-15 and unchanged on 2026-11-01, because the pricing page tables don't render without JavaScript.",
          "The privacy notice was last updated 2026-05-18 and the sub-processor page 2026-10-30, both read on 2026-11-01.",
          "The domain registration date is per the 30 September check, not re-read on 1 November."
        ],
        "score": 94
      },
      "requirements": {
        "setupChecked": true,
        "complianceChecked": true,
        "card": "paid-only",
        "freeTier": true,
        "minutes": 15,
        "credential": "cloud-iam",
        "hosting": [
          "US",
          "CA",
          "EU",
          "UK",
          "APAC"
        ],
        "euResidency": "yes",
        "trainsOnData": "no",
        "zeroRetention": "unknown",
        "certifications": [
          "SOC 2 Type II",
          "ISO 27001",
          "ISO 27701",
          "CSA STAR",
          "HIPAA (BAA available)",
          "FedRAMP",
          "GDPR"
        ],
        "dpa": true,
        "selfHost": "no"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/amazon-s3.json",
      "live": {
        "slug": "amazon-s3",
        "probe": {
          "target": "https://s3.us-east-1.amazonaws.com",
          "method": "get",
          "lastAt": "2026-11-07T19:21:51.777508996Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 601,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 449,
          "p95ms24h": 604,
          "samples24h": 238,
          "samples30d": 7920,
          "days": [
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-22",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-23",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-24",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-26",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-27",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-28",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-29",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-30",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-31",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-11-01",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-11-02",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-11-03",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-11-04",
              "probes": 246,
              "ok": 246
            },
            {
              "date": "2026-11-05",
              "probes": 185,
              "ok": 185
            },
            {
              "date": "2026-11-06",
              "probes": 241,
              "ok": 241
            },
            {
              "date": "2026-11-07",
              "probes": 197,
              "ok": 197
            }
          ]
        },
        "versions": [
          {
            "registry": "github",
            "name": "aws/aws-sdk-js-v3",
            "version": "v3.1164.0",
            "released": "2026-11-06",
            "seenAt": "2026-11-06T23:05:40.863352801Z"
          },
          {
            "registry": "npm",
            "name": "@aws-sdk/client-s3",
            "version": "3.1164.0",
            "seenAt": "2026-11-06T23:05:38.863698871Z"
          },
          {
            "registry": "pypi",
            "name": "boto3",
            "version": "1.43.126",
            "released": "2026-11-06",
            "seenAt": "2026-11-06T23:05:40.123207331Z"
          }
        ],
        "githubStars": 3679,
        "npmWeekly": 71593606,
        "pypiWeekly": 637851852,
        "securityTxt": {
          "url": "https://amazonaws.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-10-16T16:25:03.000Z",
          "checkedAt": "2026-11-07T16:01:20.771828423Z"
        },
        "domain": {
          "domain": "amazonaws.com",
          "registered": "2005-08-18",
          "source": "https://rdap.verisign.com/com/v1/domain/amazonaws.com",
          "checkedAt": "2026-11-01T14:19:22.344066529Z"
        },
        "pages": [
          {
            "url": "https://aws.amazon.com/about-aws/whats-new/storage/",
            "kind": "changelog",
            "status": 304,
            "checkedAt": "2026-11-07T13:59:50.491224842Z",
            "changedAt": "2026-11-06T13:22:36.159837541Z",
            "fingerprint": "3c192352be1b"
          },
          {
            "url": "https://aws.amazon.com/s3/pricing/",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-11-07T14:00:08.609450778Z",
            "changedAt": "2026-11-06T13:22:54.942476526Z",
            "fingerprint": "0dee8de4623e"
          },
          {
            "url": "https://b0.p.awsstatic.com/pricing/2.0/meteredUnitMaps/s3/USD/current/s3.json",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-11-07T13:59:51.901967458Z",
            "changedAt": "0001-01-01T00:00:00Z"
          }
        ],
        "github": {
          "repo": "aws/aws-sdk-js-v3",
          "checkedAt": "2026-11-02T08:33:16.329318522Z",
          "stars": 3679,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-11-01T17:07:41Z",
          "openIssues": 105,
          "openPRs": 57,
          "issuesOpened90d": 23,
          "issuesClosed90d": 21,
          "prsMerged90d": 73,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 44,
            "failure": 6,
            "other": 0,
            "latest": "failure",
            "latestAt": "2026-10-30T18:54:44Z"
          },
          "advisories": [
            {
              "ghsa": "GHSA-6475-r3vj-m8vf",
              "severity": "low",
              "published": "2026-01-08T19:59:56Z"
            }
          ],
          "replies": {
            "sampled": 25,
            "unanswered": 10,
            "medianDays": 3.1
          }
        },
        "updatedAt": "2026-11-07T19:21:51.777508996Z"
      }
    },
    "answer": "Amazon S3 and Google Cloud Storage score within a point of each other on agent readiness, 77.3 (BB) and 76.7 (BB). Google Cloud Storage leads on maintenance \u0026 community.",
    "b": {
      "slug": "google-cloud-storage",
      "name": "Google Cloud Storage",
      "vendor": "Google Cloud",
      "vendorUrl": "https://cloud.google.com/storage",
      "kind": "http-api",
      "category": "file-storage",
      "summary": "Google Cloud Storage is Google Cloud's object store for buckets and objects, reached through JSON and XML REST APIs, a gRPC Storage Control API, the gcloud CLI, client libraries and a generally available remote MCP server.",
      "url": "https://www.anchorterminal.com/tools/google-cloud-storage",
      "markdownUrl": "https://www.anchorterminal.com/tools/google-cloud-storage.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/google-cloud-storage.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/google-cloud-storage.json",
      "dns": "google-cloud-storage.grade.anchorterminal.com",
      "transports": [
        "streamable-http"
      ],
      "remoteUrl": "https://storage.googleapis.com/storage/mcp",
      "packages": [
        {
          "registry": "npm",
          "name": "@google-cloud/storage"
        },
        {
          "registry": "pypi",
          "name": "google-cloud-storage"
        }
      ],
      "auth": "oauth",
      "authNotes": "Google OAuth 2.0 access tokens for user or service-account identities, scoped by IAM roles on the project, bucket or managed folder, with HMAC keys for the XML API's S3-style access, and V4 signed URLs that carry a signature, not the secret. The MCP server uses the same Google authentication, with its own IAM permissions per MCP method.",
      "pricing": "usage",
      "pricingNotes": "Pay per GB-month stored, per 1,000 operations and per GB of egress, by location and class. Standard in a single region is $0.005 per 1,000 Class A and $0.0004 per 1,000 Class B operations; a dual-region example bills $0.022 per GB-month. Always Free gives 5 GB-months of Standard storage, 5,000 Class A and 50,000 Class B operations in three US regions. Failed 4xx and 5xx operations are generally not charged.",
      "priceSummary": "$0.005 / 1k req",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 on Cloud Storage or its pricing page (checked 2026-11-06).",
        "endpoints": []
      },
      "toolCount": 9,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-06"
      },
      "docsUrl": "https://docs.cloud.google.com/storage/docs/apis",
      "openapi": "https://storage.googleapis.com/$discovery/rest?version=v1",
      "capabilities": [
        "storage.object",
        "storage.presigned",
        "storage.s3",
        "storage.share"
      ],
      "tags": [
        "hosted",
        "usage",
        "free-tier",
        "mcp",
        "remote-mcp",
        "oauth",
        "iam",
        "google-cloud",
        "object-storage",
        "signed-urls",
        "sla",
        "grpc"
      ],
      "lastRelease": "2026-11-04",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 76.7,
        "grade": "BB",
        "agentReady": true,
        "rank": 41,
        "ranked": true,
        "rankOf": 1510,
        "categoryRank": 4,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 85,
          "maintenance": 88,
          "payments": 30,
          "reliability": 80,
          "schema": 81,
          "security": 85,
          "transparency": 85
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-06"
        },
        "negative": 0,
        "verdict": "IAM per bucket and MCP method, signed URLs, preconditions for safe retries and a 99.95 per cent multi-region SLA make it a well-governed object store for agents. The nine-tool MCP server has no read-only or destructive annotations, reads stop at 8 MiB, and a person must set up a project and billing first.",
        "bestFor": "Agents on Google Cloud that store and share files and datasets. amazon-s3, azure-blob-storage and cloudflare-r2 are the closest listings; teams outside Google Cloud with S3 tooling may prefer S3-compatible stores.",
        "strengths": [
          "Generally available MCP server since 20 April 2026, with IAM permissions per MCP method",
          "Preconditions and a documented retry strategy make writes safe to retry",
          "SLA of 99.95 per cent a month for multi-region Standard storage",
          "Signed URLs share objects without sharing credentials",
          "Cloud Audit Logs cover admin and data access"
        ],
        "weaknesses": [
          "MCP tools carry no read-only or destructive annotations and deletes need no confirmation",
          "read_object stops at 8 MiB through MCP",
          "A high-severity multi-product incident affected Cloud Storage on 20 August 2026",
          "Project and billing setup needs a person in a browser"
        ],
        "agentNotes": [
          "Grant the agent's service account only Storage Object Viewer or Creator on the bucket it needs",
          "Send ifGenerationMatch on writes and deletes so a retry can't overwrite a newer object",
          "Use a V4 signed URL to share an object rather than changing bucket access",
          "Read objects over 8 MiB through the JSON API with Range, not the MCP read_object tool",
          "Confirm with the user before delete_bucket or delete_object"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 76.7
          }
        ],
        "editorialScores": {
          "ergonomics": 85,
          "maintenance": 88,
          "payments": 30,
          "reliability": 80,
          "schema": 81,
          "security": 85,
          "transparency": 73
        },
        "provenanceScore": 97,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-06",
            "maintenance": "2026-11-06",
            "payments": "2026-11-06",
            "reliability": "2026-11-06",
            "schema": "2026-11-06",
            "security": "2026-11-06",
            "transparency": "2026-11-06"
          },
          "last": "2026-11-06",
          "oldest": "2026-11-06",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "pip install google-cloud-storage",
        "http": "curl -H \"Authorization: Bearer $(gcloud auth print-access-token)\" \"https://storage.googleapis.com/storage/v1/b?project=PROJECT_ID\""
      },
      "letme": {
        "capability": "https://letme.dev/storage.object",
        "tool": "https://letme.dev/google-cloud-storage"
      },
      "sameCompany": [
        "gemini-api",
        "vertex-ai",
        "gemini-embedding",
        "vertex-ai-tuning",
        "cloud-run-gpus",
        "google-model-armor",
        "google-imagen",
        "google-veo",
        "google-lyria",
        "google-speech-to-text",
        "google-cloud-tts",
        "gemini-live",
        "google-adk",
        "google-memory-bank",
        "google-secret-manager",
        "google-cloud-document-ai",
        "google-weather-api",
        "chrome-devtools-mcp",
        "google-maps-platform",
        "google-cloud-translation",
        "google-calendar-api",
        "firebase-cloud-messaging",
        "google-drive-api",
        "gemini-enterprise",
        "gemini-cli",
        "google-search-console",
        "google-ads-api",
        "google-forms",
        "google-sheets-api",
        "gmail-api",
        "google-people-api"
      ],
      "area": "everyday",
      "unitPrices": [
        {
          "item": "Class A operation, Standard, regional",
          "unit": "1k-requests",
          "usd": 0.005,
          "note": "Flat namespace; $0.0065 with hierarchical namespace"
        },
        {
          "item": "Class B operation, Standard, regional",
          "unit": "1k-requests",
          "usd": 0.0004,
          "note": "Flat namespace; $0.0005 with hierarchical namespace"
        },
        {
          "item": "Standard storage, dual-region example",
          "unit": "gb-month",
          "usd": 0.022,
          "note": "Per the pricing page's Iowa and Oregon dual-region example; regional rates vary by location"
        }
      ],
      "provenance": {
        "legalEntity": "Google LLC (Google Cloud EMEA Limited and other regional entities by billing address)",
        "domain": "google.com",
        "domainRegistered": "1997-09-15",
        "endpointOnVendorDomain": true,
        "terms": "https://cloud.google.com/terms",
        "privacy": "https://policies.google.com/privacy",
        "statusPage": "https://status.cloud.google.com",
        "changelog": "https://docs.cloud.google.com/storage/docs/release-notes",
        "securityTxt": "valid",
        "checked": "2026-11-06",
        "notes": [
          "Legal entity, terms, privacy and security.txt follow the Google Cloud provenance in data/tools/google-secret-manager.json (checked 1 November 2026); not re-read for this listing.",
          "status.cloud.google.com/robots.txt allows all; its incidents.json was read on 6 November 2026.",
          "The API lives at storage.googleapis.com and the docs at docs.cloud.google.com, both Google domains."
        ],
        "score": 97
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/google-cloud-storage.json",
      "live": {
        "slug": "google-cloud-storage",
        "probe": {
          "target": "https://storage.googleapis.com/storage/mcp",
          "method": "get",
          "lastAt": "2026-11-07T19:22:09.087529908Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 119,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 45,
          "p95ms24h": 121,
          "samples24h": 210,
          "samples30d": 210,
          "days": [
            {
              "date": "2026-11-06",
              "probes": 13,
              "ok": 13
            },
            {
              "date": "2026-11-07",
              "probes": 197,
              "ok": 197
            }
          ]
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@google-cloud/storage",
            "version": "8.4.0",
            "seenAt": "2026-11-06T23:29:10.718971869Z"
          },
          {
            "registry": "pypi",
            "name": "google-cloud-storage",
            "version": "3.17.1",
            "released": "2026-10-15",
            "seenAt": "2026-11-06T23:29:11.680918026Z"
          }
        ],
        "npmWeekly": 26901222,
        "pypiWeekly": 39461441,
        "securityTxt": {
          "url": "https://google.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2030-04-01T00:00:00z",
          "checkedAt": "2026-11-07T16:01:22.068349931Z"
        },
        "pages": [
          {
            "url": "https://docs.cloud.google.com/storage/docs/release-notes",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-11-07T14:05:53.84257971Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "2d3b4b4b1622"
          }
        ],
        "updatedAt": "2026-11-07T19:22:09.087529908Z"
      }
    },
    "edges": [
      {
        "by": 15,
        "category": "maintenance",
        "leads": "google-cloud-storage",
        "name": "Maintenance \u0026 community",
        "reasons": {
          "a": "The S3 model in aws/api-models-aws last changed on 30 September 2026, adding an IntelligentTieringReferenceDate enum value. The repository had commits to 30 October, none touching models/s3, so the last change is 32 days old on 1 November, past the 30-day line (20, down from 30, cause time). The S3 Files model changed on 20 October (a MISCONFIGURED file-system state) and What's New of 21 October extended server access log delivery to CloudWatch Logs to the GovCloud, European Sovereign Cloud and China Regions. Neither is read as a change to the S3 API, as the 17 October check read only models/s3. Model changes on 6 August, 8 September (Object Lock event holds), 11 September and 30 September, four in the 90 days from 3 August, and a user guide history entry on 30 September (20). Closed service with dated model changes, a What's New feed and AWS re:Post. Direct support is a paid plan (10). Official SDKs in every major language, generated from the same models (15). We didn't check SDK CI this run (8). 20 + 20 + 10 + 15 + 8 = 73.",
          "b": "Release notes on 4 November 2026 (30). Entries on 30 October, 13 October, 30 September, 10 September and 3 September (20). A closed service with dated release notes and paid support; issue trackers for the client libraries are public (15). Official client libraries in many languages (15). Libraries ship with end-to-end checksums by default since 30 September (8). 30 + 20 + 15 + 15 + 8 = 88."
        },
        "scores": {
          "a": 73,
          "b": 88
        }
      },
      {
        "by": 11,
        "category": "schema",
        "leads": "amazon-s3",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "No OpenAPI, but the S3 Smithy model (s3-2006-03-01.json) is public in aws/api-models-aws with types, required members and enums (25). An llms.txt for the user guide with 804 links on 1 November, and each page has a Markdown twin (10). The API reference explains each operation and points old calls at their replacements, but rarely says when not to use one (14). Typed inputs from the model, with enums and constraints (14). Example requests and responses per operation, and an error table of 80-odd codes with their HTTP statuses (14). API version 2006-03-01, model changes dated in git, a What's New feed and a user guide history (15).",
          "b": "The JSON API is described by a public Google API Discovery document, storage v1 revision 20261103 (25). docs.cloud.google.com/llms.txt and /storage/llms.txt return 404 (0). The reference explains each method and the docs say when to use XML, JSON or gRPC and that gsutil is legacy (14). Typed resources with enums for storage classes and predefined ACLs (14). Samples in every client library and an error reference with HTTP codes and reasons (13). API version v1 and dated release notes, the latest on 4 November 2026 (15). 25 + 0 + 14 + 14 + 13 + 15 = 81."
        },
        "scores": {
          "a": 92,
          "b": 81
        }
      }
    ],
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Amazon Web Services",
        "b": "Google Cloud",
        "name": "Vendor"
      },
      {
        "a": "https://s3.us-east-1.amazonaws.com",
        "b": "https://storage.googleapis.com/storage/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Apache-2.0",
        "b": "none",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "9",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "2026-09-30",
        "b": "2026-11-04",
        "name": "Last release"
      },
      {
        "a": "2026-10-01",
        "b": "2026-09-02",
        "name": "Terms last updated"
      },
      {
        "a": "2026-05-18",
        "b": "2026-10-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes, with an opt-out",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "3.7k stars, 44.8M npm/wk, 578.4M PyPI/wk",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "3.4/5 (8)",
        "b": "none",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Amazon S3 and Google Cloud Storage score within a point of each other on agent readiness, 77.3 (BB) and 76.7 (BB). Google Cloud Storage leads on maintenance \u0026 community.",
        "question": "Which is better for AI agents, Amazon S3 or Google Cloud Storage?"
      },
      {
        "answer": "Amazon S3 needs an API key. Google Cloud Storage uses an OAuth sign-in.",
        "question": "Do Amazon S3 and Google Cloud Storage need an API key?"
      },
      {
        "answer": "Yes. Amazon S3 has a hosted endpoint at https://s3.us-east-1.amazonaws.com and Google Cloud Storage at https://storage.googleapis.com/storage/mcp.",
        "question": "Can an agent call Amazon S3 and Google Cloud Storage without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Schema \u0026 documentation, 92 against 81"
        ],
        "also": null,
        "goodFor": "Best when the rest of the stack is on AWS or the job needs versioning, Object Lock, replication or event notifications, and when an operator wants per-prefix, per-hour credentials for an agent.",
        "slug": "amazon-s3",
        "watchFor": "Egress to the internet is billed per GB after 100 GB a month"
      },
      {
        "aheadOn": [
          "Maintenance \u0026 community, 88 against 73"
        ],
        "also": null,
        "goodFor": "Agents on Google Cloud that store and share files and datasets. amazon-s3, azure-blob-storage and cloudflare-r2 are the closest listings; teams outside Google Cloud with S3 tooling may prefer S3-compatible stores.",
        "slug": "google-cloud-storage",
        "watchFor": "MCP tools carry no read-only or destructive annotations and deletes need no confirmation"
      }
    ],
    "history": {
      "amazon-s3": [
        {
          "causes": [
            "time"
          ],
          "date": "2026-11-01",
          "delta": -0.9,
          "from": 78.2,
          "fromGrade": "A",
          "to": 77.3,
          "toGrade": "BB"
        },
        {
          "causes": [
            "method"
          ],
          "date": "2026-10-27",
          "delta": 0.1,
          "from": 78.1,
          "fromGrade": "A",
          "to": 78.2,
          "toGrade": "A"
        },
        {
          "causes": [
            "security"
          ],
          "date": "2026-10-17",
          "delta": 0.2,
          "from": 77.9,
          "fromGrade": "BB",
          "to": 78.1,
          "toGrade": "A"
        }
      ],
      "google-cloud-storage": null
    },
    "job": {
      "capability": "storage.object",
      "name": "Object storage"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-box-api.json",
        "title": "Amazon S3 vs Box API + MCP",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-box-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-dropbox-api.json",
        "title": "Amazon S3 vs Dropbox API + MCP",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-dropbox-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-fast-io.json",
        "title": "Amazon S3 vs Fastio",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-fast-io"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-google-drive-api.json",
        "title": "Amazon S3 vs Google Drive API + MCP",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-google-drive-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-onedrive-sharepoint.json",
        "title": "Amazon S3 vs OneDrive and SharePoint files (Microsoft Graph)",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-onedrive-sharepoint"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp.json",
        "title": "Amazon S3 vs ONLYOFFICE Apps MCP Server",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/box-api-vs-google-cloud-storage.json",
        "title": "Box API + MCP vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/box-api-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/dropbox-api-vs-google-cloud-storage.json",
        "title": "Dropbox API + MCP vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/dropbox-api-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fast-io-vs-google-cloud-storage.json",
        "title": "Fastio vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/fast-io-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-google-drive-api.json",
        "title": "Google Cloud Storage vs Google Drive API + MCP",
        "url": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-google-drive-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-onlyoffice-mcp.json",
        "title": "Google Cloud Storage vs ONLYOFFICE Apps MCP Server",
        "url": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-onlyoffice-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-azure-blob-storage.json",
        "title": "Amazon S3 vs Azure Blob Storage",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-azure-blob-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2.json",
        "title": "Amazon S3 vs Backblaze B2",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-bunny-storage.json",
        "title": "Amazon S3 vs Bunny Storage",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-bunny-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-cloudflare-r2.json",
        "title": "Amazon S3 vs Cloudflare R2",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-cloudflare-r2"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-digitalocean-spaces.json",
        "title": "Amazon S3 vs DigitalOcean Spaces",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-digitalocean-spaces"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris.json",
        "title": "Amazon S3 vs Tigris",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-wasabi-hot-cloud-storage.json",
        "title": "Amazon S3 vs Wasabi Hot Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-wasabi-hot-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-google-cloud-storage.json",
        "title": "Azure Blob Storage vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/azure-blob-storage-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/backblaze-b2-vs-google-cloud-storage.json",
        "title": "Backblaze B2 vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/backblaze-b2-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bunny-storage-vs-google-cloud-storage.json",
        "title": "Bunny Storage vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/bunny-storage-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-r2-vs-google-cloud-storage.json",
        "title": "Cloudflare R2 vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/cloudflare-r2-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/digitalocean-spaces-vs-google-cloud-storage.json",
        "title": "DigitalOcean Spaces vs Google Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/digitalocean-spaces-vs-google-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-tigris.json",
        "title": "Google Cloud Storage vs Tigris",
        "url": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-tigris"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-wasabi-hot-cloud-storage.json",
        "title": "Google Cloud Storage vs Wasabi Hot Cloud Storage",
        "url": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-wasabi-hot-cloud-storage"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-onedrive-sharepoint.json",
        "title": "Google Cloud Storage vs OneDrive and SharePoint files (Microsoft Graph)",
        "url": "https://www.anchorterminal.com/compare/google-cloud-storage-vs-onedrive-sharepoint"
      }
    ],
    "panel": null,
    "scores": [
      {
        "amazon-s3": 80,
        "by": 0,
        "edge": "",
        "google-cloud-storage": 80,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "amazon-s3": 92,
        "by": 11,
        "edge": "amazon-s3",
        "google-cloud-storage": 81,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "amazon-s3": 83,
        "by": 2,
        "edge": "google-cloud-storage",
        "google-cloud-storage": 85,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "amazon-s3": 88,
        "by": 3,
        "edge": "amazon-s3",
        "google-cloud-storage": 85,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "amazon-s3": 30,
        "by": 0,
        "edge": "",
        "google-cloud-storage": 30,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "amazon-s3": 73,
        "by": 15,
        "edge": "google-cloud-storage",
        "google-cloud-storage": 88,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "amazon-s3": 84,
        "by": 1,
        "edge": "google-cloud-storage",
        "google-cloud-storage": 85,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Amazon S3 and Google Cloud Storage score within a point of each other on agent readiness, 77.3 (BB) and 76.7 (BB). Google Cloud Storage leads on maintenance \u0026 community. Both do object storage.",
    "tasks": null,
    "tutorials": [],
    "verdicts": {
      "amazon-s3": "STS session credentials with session policies, so an agent can hold one prefix for an hour. Egress to the internet is billed per GB after 100 GB a month.",
      "google-cloud-storage": "IAM per bucket and MCP method, signed URLs, preconditions for safe retries and a 99.95 per cent multi-region SLA make it a well-governed object store for agents. The nine-tool MCP server has no read-only or destructive annotations, reads stop at 8 MiB, and a person must set up a project and billing first."
    }
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  "markdown": "Amazon S3 and Google Cloud Storage score within a point of each other on agent readiness, 77.3 (BB) and 76.7 (BB). Google Cloud Storage leads on maintenance \u0026 community. Both do object storage.\n\n- Amazon S3: grade BB, 77.3/100, rank #32 of 1510. Markdown https://www.anchorterminal.com/tools/amazon-s3.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-s3.json\n- Google Cloud Storage: grade BB, 76.7/100, rank #41 of 1510. Markdown https://www.anchorterminal.com/tools/google-cloud-storage.md · JSON https://www.anchorterminal.com/api/v1/tools/google-cloud-storage.json\n- Best file storage and sharing APIs for AI agents: https://www.anchorterminal.com/best/file-storage/index.md\n- All 105 storage comparisons: https://www.anchorterminal.com/compare/file-storage/index.md\n\n## Which one, for what\n\n### Amazon S3 (BB)\n\nGood for: Best when the rest of the stack is on AWS or the job needs versioning, Object Lock, replication or event notifications, and when an operator wants per-prefix, per-hour credentials for an agent.\n\nAhead on:\n- Schema \u0026 documentation, 92 against 81\n\nWatch for: Egress to the internet is billed per GB after 100 GB a month\n\n### Google Cloud Storage (BB)\n\nGood for: Agents on Google Cloud that store and share files and datasets. amazon-s3, azure-blob-storage and cloudflare-r2 are the closest listings; teams outside Google Cloud with S3 tooling may prefer S3-compatible stores.\n\nAhead on:\n- Maintenance \u0026 community, 88 against 73\n\nWatch for: MCP tools carry no read-only or destructive annotations and deletes need no confirmation\n\n\n## Why the edge\n\n### Maintenance \u0026 community: Google Cloud Storage +15\n\n- Amazon S3 (73): The S3 model in aws/api-models-aws last changed on 30 September 2026, adding an IntelligentTieringReferenceDate enum value. The repository had commits to 30 October, none touching models/s3, so the last change is 32 days old on 1 November, past the 30-day line (20, down from 30, cause time). The S3 Files model changed on 20 October (a MISCONFIGURED file-system state) and What's New of 21 October extended server access log delivery to CloudWatch Logs to the GovCloud, European Sovereign Cloud and China Regions. Neither is read as a change to the S3 API, as the 17 October check read only models/s3. Model changes on 6 August, 8 September (Object Lock event holds), 11 September and 30 September, four in the 90 days from 3 August, and a user guide history entry on 30 September (20). Closed service with dated model changes, a What's New feed and AWS re:Post. Direct support is a paid plan (10). Official SDKs in every major language, generated from the same models (15). We didn't check SDK CI this run (8). 20 + 20 + 10 + 15 + 8 = 73.\n- Google Cloud Storage (88): Release notes on 4 November 2026 (30). Entries on 30 October, 13 October, 30 September, 10 September and 3 September (20). A closed service with dated release notes and paid support; issue trackers for the client libraries are public (15). Official client libraries in many languages (15). Libraries ship with end-to-end checksums by default since 30 September (8). 30 + 20 + 15 + 15 + 8 = 88.\n\n### Schema \u0026 documentation: Amazon S3 +11\n\n- Amazon S3 (92): No OpenAPI, but the S3 Smithy model (s3-2006-03-01.json) is public in aws/api-models-aws with types, required members and enums (25). An llms.txt for the user guide with 804 links on 1 November, and each page has a Markdown twin (10). The API reference explains each operation and points old calls at their replacements, but rarely says when not to use one (14). Typed inputs from the model, with enums and constraints (14). Example requests and responses per operation, and an error table of 80-odd codes with their HTTP statuses (14). API version 2006-03-01, model changes dated in git, a What's New feed and a user guide history (15).\n- Google Cloud Storage (81): The JSON API is described by a public Google API Discovery document, storage v1 revision 20261103 (25). docs.cloud.google.com/llms.txt and /storage/llms.txt return 404 (0). The reference explains each method and the docs say when to use XML, JSON or gRPC and that gsutil is legacy (14). Typed resources with enums for storage classes and predefined ACLs (14). Samples in every client library and an error reference with HTTP codes and reasons (13). API version v1 and dated release notes, the latest on 4 November 2026 (15). 25 + 0 + 14 + 14 + 13 + 15 = 81.\n\n## Score by category\n\n| Category | Weight | Amazon S3 | Google Cloud Storage | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 80 | 80 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 92 | 81 | Amazon S3 +11 |\n| Agent ergonomics | 13% (16.2 this run) | 83 | 85 | Google Cloud Storage +2 |\n| Security \u0026 auth | 14% (17.5 this run) | 88 | 85 | Amazon S3 +3 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 30 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 73 | 88 | Google Cloud Storage +15 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 84 | 85 | Google Cloud Storage +1 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **77.3 · BB** | **76.7 · BB** | |\n\n## Facts side by side\n\n| Fact | Amazon S3 | Google Cloud Storage |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Amazon Web Services | Google Cloud |\n| Hosted endpoint | `https://s3.us-east-1.amazonaws.com` | `https://storage.googleapis.com/storage/mcp` |\n| Transports | HTTP | Streamable HTTP |\n| Auth | API key | OAuth |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | Apache-2.0 | none |\n| Tools exposed | none | 9 |\n| Read-only variant documented | no | no |\n| llms.txt | no | no |\n| Last release | 2026-09-30 | 2026-11-04 |\n| Terms last updated | 2026-10-01 | 2026-09-02 |\n| Privacy policy last updated | 2026-05-18 | 2026-10-01 |\n| Customer content may train models | yes, with an opt-out | yes |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | yes | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 3.7k stars, 44.8M npm/wk, 578.4M PyPI/wk | none |\n| Agent reviews | 3.4/5 (8) | none |\n\n## How the scores have moved\n\n### Amazon S3\n\n- -0.9 on 1 November 2026 (A to BB): time\n- +0.1 on 27 October 2026: checklist\n- +0.2 on 17 October 2026 (BB to A): security\n\n### Google Cloud Storage\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Amazon S3.** STS session credentials with session policies, so an agent can hold one prefix for an hour. Egress to the internet is billed per GB after 100 GB a month.\n\n**Google Cloud Storage.** IAM per bucket and MCP method, signed URLs, preconditions for safe retries and a 99.95 per cent multi-region SLA make it a well-governed object store for agents. The nine-tool MCP server has no read-only or destructive annotations, reads stop at 8 MiB, and a person must set up a project and billing first.\n\n## Before you call either\n\n### Amazon S3\n\n1. Hold STS session credentials scoped by a session policy, never a long-lived IAM user key\n2. Sign presigned URLs with credentials that outlive the URL; a URL signed with a one-hour session token dies with the token\n3. Send If-None-Match with * on PutObject so a retry can't overwrite a file another call wrote\n4. Track the Free plan's end date on a new account; when the plan expires AWS suspends the account and access to the stored objects\n5. On 503 SlowDown back off and spread keys over more prefixes, since each prefix gets 3,500 writes a second\n\n### Google Cloud Storage\n\n1. Grant the agent's service account only Storage Object Viewer or Creator on the bucket it needs\n2. Send ifGenerationMatch on writes and deletes so a retry can't overwrite a newer object\n3. Use a V4 signed URL to share an object rather than changing bucket access\n4. Read objects over 8 MiB through the JSON API with Range, not the MCP read_object tool\n5. Confirm with the user before delete_bucket or delete_object\n\n## Questions\n\n### Which is better for AI agents, Amazon S3 or Google Cloud Storage?\n\nAmazon S3 and Google Cloud Storage score within a point of each other on agent readiness, 77.3 (BB) and 76.7 (BB). Google Cloud Storage leads on maintenance \u0026 community.\n\n### Do Amazon S3 and Google Cloud Storage need an API key?\n\nAmazon S3 needs an API key. Google Cloud Storage uses an OAuth sign-in.\n\n### Can an agent call Amazon S3 and Google Cloud Storage without installing anything?\n\nYes. Amazon S3 has a hosted endpoint at https://s3.us-east-1.amazonaws.com and Google Cloud Storage at https://storage.googleapis.com/storage/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/amazon-s3-vs-google-cloud-storage.json, and with the fewest tokens: https://www.anchorterminal.com/compare/amazon-s3-vs-google-cloud-storage.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"amazon-s3\", \"b\": \"google-cloud-storage\"}`. From a terminal: `anchor compare amazon-s3 google-cloud-storage`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amazon-s3.json and https://www.anchorterminal.com/api/v1/tools/google-cloud-storage.json\n\n## Other comparisons with Amazon S3 or Google Cloud Storage\n\n- [Amazon S3 vs Box API + MCP](https://www.anchorterminal.com/compare/amazon-s3-vs-box-api.md)\n- [Amazon S3 vs Dropbox API + MCP](https://www.anchorterminal.com/compare/amazon-s3-vs-dropbox-api.md)\n- [Amazon S3 vs Fastio](https://www.anchorterminal.com/compare/amazon-s3-vs-fast-io.md)\n- [Amazon S3 vs Google Drive API + MCP](https://www.anchorterminal.com/compare/amazon-s3-vs-google-drive-api.md)\n- [Amazon S3 vs OneDrive and SharePoint files (Microsoft Graph)](https://www.anchorterminal.com/compare/amazon-s3-vs-onedrive-sharepoint.md)\n- [Amazon S3 vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/amazon-s3-vs-onlyoffice-mcp.md)\n- [Box API + MCP vs Google Cloud Storage](https://www.anchorterminal.com/compare/box-api-vs-google-cloud-storage.md)\n- [Dropbox API + MCP vs Google Cloud Storage](https://www.anchorterminal.com/compare/dropbox-api-vs-google-cloud-storage.md)\n- [Fastio vs Google Cloud Storage](https://www.anchorterminal.com/compare/fast-io-vs-google-cloud-storage.md)\n- [Google Cloud Storage vs Google Drive API + MCP](https://www.anchorterminal.com/compare/google-cloud-storage-vs-google-drive-api.md)\n- [Google Cloud Storage vs ONLYOFFICE Apps MCP Server](https://www.anchorterminal.com/compare/google-cloud-storage-vs-onlyoffice-mcp.md)\n- [Amazon S3 vs Azure Blob Storage](https://www.anchorterminal.com/compare/amazon-s3-vs-azure-blob-storage.md)\n- [Amazon S3 vs Backblaze B2](https://www.anchorterminal.com/compare/amazon-s3-vs-backblaze-b2.md)\n- [Amazon S3 vs Bunny Storage](https://www.anchorterminal.com/compare/amazon-s3-vs-bunny-storage.md)\n- [Amazon S3 vs Cloudflare R2](https://www.anchorterminal.com/compare/amazon-s3-vs-cloudflare-r2.md)\n- [Amazon S3 vs DigitalOcean Spaces](https://www.anchorterminal.com/compare/amazon-s3-vs-digitalocean-spaces.md)\n- [Amazon S3 vs Tigris](https://www.anchorterminal.com/compare/amazon-s3-vs-tigris.md)\n- [Amazon S3 vs Wasabi Hot Cloud Storage](https://www.anchorterminal.com/compare/amazon-s3-vs-wasabi-hot-cloud-storage.md)\n- [Azure Blob Storage vs Google Cloud Storage](https://www.anchorterminal.com/compare/azure-blob-storage-vs-google-cloud-storage.md)\n- [Backblaze B2 vs Google Cloud Storage](https://www.anchorterminal.com/compare/backblaze-b2-vs-google-cloud-storage.md)\n- [Bunny Storage vs Google Cloud Storage](https://www.anchorterminal.com/compare/bunny-storage-vs-google-cloud-storage.md)\n- [Cloudflare R2 vs Google Cloud Storage](https://www.anchorterminal.com/compare/cloudflare-r2-vs-google-cloud-storage.md)\n- [DigitalOcean Spaces vs Google Cloud Storage](https://www.anchorterminal.com/compare/digitalocean-spaces-vs-google-cloud-storage.md)\n- [Google Cloud Storage vs Tigris](https://www.anchorterminal.com/compare/google-cloud-storage-vs-tigris.md)\n- [Google Cloud Storage vs Wasabi Hot Cloud Storage](https://www.anchorterminal.com/compare/google-cloud-storage-vs-wasabi-hot-cloud-storage.md)\n- [Google Cloud Storage vs OneDrive and SharePoint files (Microsoft Graph)](https://www.anchorterminal.com/compare/google-cloud-storage-vs-onedrive-sharepoint.md)\n",
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