{ "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", "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); 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 (https://aws.amazon.com/s3/pricing/; https://b0.p.awsstatic.com/pricing/2.0/meteredUnitMaps/s3/USD/current/s3.json).", "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": 79.3, "grade": "A", "agentReady": true, "rank": 9, "ranked": true, "rankOf": 452, "categoryRank": 1, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 83, "maintenance": 83, "payments": 20, "reliability": 95, "schema": 92, "security": 86, "transparency": 80 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "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.", "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 and a payment card", "No S3-specific MCP server; AWS's general MCP server reaches S3 through IAM credentials and generic API calls", "security.txt on aws.amazon.com expired on 24 September 2026" ], "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", "Page ListObjectsV2 with MaxKeys and ContinuationToken, and always pass a Prefix", "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": "A", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 79.3 } ], "editorialScores": { "ergonomics": 83, "maintenance": 83, "payments": 20, "reliability": 95, "schema": 92, "security": 86, "transparency": 65 }, "provenanceScore": 95 }, "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" }, "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": "expired", "checked": "2026-09-30", "notes": [ "The Service Terms (updated 2026-09-15) 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 S3 endpoints sit on amazonaws.com; the marketing and pricing pages on aws.amazon.com.", "aws.amazon.com/.well-known/security.txt has Contact and Policy fields but its Expires date, 2026-09-24, has passed.", "Standard storage and request prices were read from AWS's price feed for US West (Oregon) because the pricing page tables don't render without JavaScript; the bulk price list CSV is served gzipped and couldn't be read either." ], "score": 95 }, "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": "2026-10-04T23:32:42.729674317Z", "lastOk": true, "lastStatus": 200, "lastMs": 400, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 411, "p95ms24h": 548, "samples24h": 272, "samples30d": 895, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 267, "ok": 267 } ] }, "versions": [ { "registry": "github", "name": "aws/aws-sdk-js-v3", "version": "v3.1146.0", "released": "2026-10-02", "seenAt": "2026-10-04T16:20:07.928352772Z" }, { "registry": "npm", "name": "@aws-sdk/client-s3", "version": "3.1146.0", "seenAt": "2026-10-04T16:20:05.926977183Z" }, { "registry": "pypi", "name": "boto3", "version": "1.43.108", "released": "2026-10-02", "seenAt": "2026-10-04T16:20:07.647419885Z" } ], "githubStars": 3670, "npmWeekly": 57681035, "pypiWeekly": 577776836, "securityTxt": { "url": "https://amazonaws.com/.well-known/security.txt", "state": "expired", "expires": "2026-09-24T16:25:03.000Z", "checkedAt": "2026-10-04T15:15:43.742236491Z" }, "domain": { "domain": "amazonaws.com", "registered": "2005-08-18", "source": "https://rdap.verisign.com/com/v1/domain/amazonaws.com", "checkedAt": "2026-10-04T13:04:05.080783455Z" }, "pages": [ { "url": "https://aws.amazon.com/about-aws/whats-new/storage/", "kind": "changelog", "status": 304, "checkedAt": "2026-10-04T15:41:22.547606864Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "fbe351f2e1cc" }, { "url": "https://aws.amazon.com/s3/pricing/", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:41:32.669788699Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "97247e5882e9" }, { "url": "https://b0.p.awsstatic.com/pricing/2.0/meteredUnitMaps/s3/USD/current/s3.json", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:41:24.40118944Z", "changedAt": "0001-01-01T00:00:00Z" } ], "updatedAt": "2026-10-04T23:32:42.729674317Z" } }, "b": { "slug": "tigris", "name": "Tigris", "vendor": "Tigris Data", "vendorUrl": "https://www.tigrisdata.com", "kind": "http-api", "category": "file-storage", "summary": "S3-compatible object storage that replicates objects towards where they're read, with no egress fees and one global endpoint (t3.storage.dev).", "url": "https://www.anchorterminal.com/tools/tigris", "markdownUrl": "https://www.anchorterminal.com/tools/tigris.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/tigris.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/tigris.json", "repo": "https://github.com/tigrisdata/tigris-mcp-server", "license": "MIT", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://t3.storage.dev", "packages": [ { "registry": "npm", "name": "@tigrisdata/tigris-mcp-server" }, { "registry": "npm", "name": "@tigrisdata/storage" } ], "auth": "mixed", "authNotes": "The S3 API takes SigV4 with an access key created in the console or the IAM API (ID starts `tid_`, secret starts `tsec_`) and region `auto`. Keys can be scoped per bucket with ReadOnly, ReadWrite or Editor roles and IAM policies, and revoked or rotated. AssumeRole, STS and temporary credentials aren't supported, so every key lives until revoked. The hosted MCP server signs in with OAuth; the stdio server reads AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_ENDPOINT_URL_S3, or an AWS CLI profile.", "pricing": "freemium", "pricingNotes": "Free every month, 5 GB of Standard storage, 10,000 PUT, COPY, POST and LIST requests and 100,000 GET, SELECT and other requests. Beyond that, Standard $0.02 a GB-month, Infrequent Access $0.01 (30-day minimum, $0.01 a GB retrieval), Archive and Archive Instant Retrieval $0.004 (90-day minimum, $0.03 a GB instant retrieval). Class A requests $0.005 per 1,000, Class B $0.0005 per 1,000, deletes free, object notifications $0.01 per 1,000 events. Egress is free in every tier and region. Storage is metered on the average daily peak over the month (https://www.tigrisdata.com/pricing/).", "priceSummary": "$0.005 / 1k req", "where": "both", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 4, "npmWeekly": 20, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://www.tigrisdata.com/docs/", "llmsTxt": "https://www.tigrisdata.com/docs/llms.txt", "capabilities": [ "storage.object", "storage.s3", "storage.presigned", "storage.share" ], "tags": [ "hosted", "closed-source", "s3-compatible", "freemium", "free-tier", "mcp", "oauth", "typescript", "llms-txt" ], "lastRelease": "2026-09-30", "graded": true, "anchor": { "graded": true, "score": 44.6, "grade": "E", "agentReady": false, "rank": 404, "ranked": true, "rankOf": 452, "categoryRank": 8, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 53, "maintenance": 77, "payments": 30, "reliability": 35, "schema": 50, "security": 51, "transparency": 51 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -3, "negativeNotes": [ "2026-09-21. @tigrisdata/iam 2.6.0 fixed policy create, update and read dropping the Condition and Sid fields, so IP-restricted or time-limited policies made with Tigris's own SDK or CLI had silently become unrestricted. Fixed and documented in the changelog, so we deduct less (-3). https://github.com/tigrisdata/storage/blob/main/packages/iam/CHANGELOG.md" ], "verdict": "No egress fees, and one endpoint (t3.storage.dev) with region auto for every location. 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August.", "strengths": [ "No egress fees, and one endpoint (t3.storage.dev) with region auto for every location", "Access keys scoped per bucket with ReadOnly, ReadWrite or Editor roles, plus IAM policies, revocation and rotation", "Hosted MCP server at mcp.storage.dev with OAuth, and a local stdio server with 10 tools", "Bucket snapshots and copy-on-write forks, wrapped for agents in @tigrisdata/agent-kit", "Active MIT SDK monorepo, @tigrisdata/storage 3.22.0 on 30 September 2026" ], "weaknesses": [ "16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August", "No STS or expiring keys; presigned URLs, which can run to 90 days, are the only short-lived credential", "No published rate limits, retry guidance, OpenAPI, product changelog or audit logs", "The stdio MCP server last released on 17 November 2025, lists whole buckets with no limit and carries no tool annotations", "@tigrisdata/iam dropped Condition fields from policies until 2.6.0 on 21 September 2026" ], "agentNotes": [ "Point the AWS SDK at https://t3.storage.dev with region `auto`; the stdio MCP README still shows the older fly.storage.tigris.dev endpoint", "Ask for an access key with a ReadOnly or ReadWrite role on one bucket rather than an org-wide key", "Keep presigned URLs short; Tigris accepts up to 90 days", "Don't call tigris_list_objects on a large bucket; it walks every object with no limit or prefix", "Use @tigrisdata/iam 2.6.0 or later before writing policies with conditions" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.6 } ], "editorialScores": { "ergonomics": 53, "maintenance": 77, "payments": 30, "reliability": 35, "schema": 50, "security": 51, "transparency": 52 }, "provenanceScore": 50 }, "connect": { "http": "AWS_ACCESS_KEY_ID=$TIGRIS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY=$TIGRIS_SECRET_ACCESS_KEY \\\n aws s3 cp ./hello.txt s3://my-bucket/hello.txt \\\n --endpoint-url https://t3.storage.dev --region auto", "claudeCode": "claude mcp add --transport http tigris https://mcp.storage.dev/mcp --scope user", "config": { "mcpServers": { "tigris": { "args": [ "-y", "@tigrisdata/tigris-mcp-server", "run" ], "command": "npx", "env": { "AWS_ACCESS_KEY_ID": "${TIGRIS_ACCESS_KEY_ID}", "AWS_ENDPOINT_URL_S3": "https://t3.storage.dev", "AWS_SECRET_ACCESS_KEY": "${TIGRIS_SECRET_ACCESS_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/storage.object", "tool": "https://letme.dev/tigris" }, "area": "everyday", "unitPrices": [ { "item": "Standard storage", "unit": "gb-month", "usd": 0.02, "note": "First 5 GB a month free" }, { "item": "Infrequent Access storage", "unit": "gb-month", "usd": 0.01, "note": "30-day minimum, $0.01 a GB retrieval" }, { "item": "Archive storage", "unit": "gb-month", "usd": 0.004, "note": "90-day minimum. Archive Instant Retrieval is the same rate plus $0.03 a GB retrieval" }, { "item": "Egress", "unit": "gb", "usd": 0 }, { "item": "Class A requests (PUT, COPY, POST, LIST)", "unit": "1k-requests", "usd": 0.005, "note": "First 10,000 a month free" }, { "item": "Class B requests (GET, SELECT, other)", "unit": "1k-requests", "usd": 0.0005, "note": "First 100,000 a month free" } ], "provenance": { "legalEntity": "Tigris Data Inc.", "domain": "tigrisdata.com", "domainRegistered": "", "endpointOnVendorDomain": false, "terms": "https://www.tigrisdata.com/docs/legal/service-terms/", "privacy": "https://www.tigrisdata.com/docs/legal/privacy-policy/", "statusPage": "https://status.tigrisdata.com", "changelog": "", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The service agreement names Tigris Data Inc., 1250 Borregas Ave, #87, Sunnyvale, CA 94089, last updated 2024-12-26.", "The S3 endpoint is on storage.dev and the hosted MCP on mcp.storage.dev, not tigrisdata.com.", "www.tigrisdata.com/.well-known/security.txt returns 404.", "The domain's RDAP record couldn't be fetched on 2026-09-30 (the RDAP server rate-limited us), so the registration date is blank." ], "score": 50 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/tigris.json", "live": { "slug": "tigris", "probe": { "target": "https://t3.storage.dev", "method": "get", "lastAt": "2026-10-04T23:32:55.477761956Z", "lastOk": true, "lastStatus": 200, "lastMs": 135, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 153, "p95ms24h": 289, "samples24h": 272, "samples30d": 895, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 267, "ok": 267 } ] }, "vendorStatus": { "page": "https://status.tigrisdata.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-04T23:28:04.547469006Z" }, "versions": [ { "registry": "github", "name": "tigrisdata/tigris-mcp-server", "version": "v1.14.0", "released": "2025-11-17", "seenAt": "2026-10-04T16:41:54.881060386Z" }, { "registry": "npm", "name": "@tigrisdata/storage", "version": "3.22.0", "seenAt": "2026-10-04T16:41:53.519245468Z" }, { "registry": "npm", "name": "@tigrisdata/tigris-mcp-server", "version": "1.14.0", "seenAt": "2026-10-04T16:41:52.671246556Z" } ], "githubStars": 4, "npmWeekly": 15, "securityTxt": { "url": "https://tigrisdata.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:36.802389708Z" }, "llmsTxt": { "url": "https://www.tigrisdata.com/docs/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:17.942052226Z" }, "domain": { "domain": "tigrisdata.com", "registered": "2021-09-28", "source": "https://rdap.verisign.com/com/v1/domain/tigrisdata.com", "checkedAt": "2026-10-04T13:06:26.738654248Z" }, "pages": [ { "url": "https://www.tigrisdata.com/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:52:30.927222957Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "31bb3b3a8224" }, { "url": "https://www.tigrisdata.com/docs/legal/privacy-policy/", "kind": "privacy", "status": 404, "checkedAt": "2026-10-04T15:52:26.857408966Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://www.tigrisdata.com/docs/legal/service-terms/", "kind": "terms", "status": 404, "checkedAt": "2026-10-04T15:52:28.943575422Z", "changedAt": "0001-01-01T00:00:00Z" } ], "updatedAt": "2026-10-04T23:32:55.477761956Z" } }, "summary": "Amazon S3 has a score of 79.3 (A) against Tigris's 44.6 (E). Both do storage object. The largest gap is reliability, 60 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris", "json": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris.md", "slim": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris.min.md" }, "markdown": "Amazon S3 has a score of 79.3 (A) against Tigris's 44.6 (E). Both do storage object. The largest gap is reliability, 60 points.\n\n- Amazon S3: grade A, 79.3/100, rank #9 of 452. Markdown https://www.anchorterminal.com/tools/amazon-s3.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-s3.json\n- Tigris: grade E, 44.6/100, rank #404 of 452. Markdown https://www.anchorterminal.com/tools/tigris.md · JSON https://www.anchorterminal.com/api/v1/tools/tigris.json\n\n## Which one, for what\n\nPick Amazon S3 for reliability (+60), schema \u0026 documentation (+42), agent ergonomics (+30), security \u0026 auth (+35), maintenance \u0026 community (+6), transparency \u0026 trust (+29).\n\nPick Tigris for payments \u0026 pricing (+10).\n\n## Score by category\n\n| Category | Weight | Amazon S3 | Tigris | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 95 | 35 | Amazon S3 +60 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 92 | 50 | Amazon S3 +42 |\n| Agent ergonomics | 13% (16.2 this run) | 83 | 53 | Amazon S3 +30 |\n| Security \u0026 auth | 14% (17.5 this run) | 86 | 51 | Amazon S3 +35 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 30 | Tigris +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 83 | 77 | Amazon S3 +6 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 80 | 51 | Amazon S3 +29 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **79.3 · A** | **44.6 · E** | |\n\n## Facts side by side\n\n| Fact | Amazon S3 | Tigris |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Amazon Web Services | Tigris Data |\n| Hosted endpoint | `https://s3.us-east-1.amazonaws.com` | `https://t3.storage.dev` |\n| Transports | HTTP | HTTP, Streamable HTTP, stdio |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 | MIT |\n| Tools exposed | none | none |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-30 | 2026-09-30 |\n| Popularity | 3.7k stars, 44.8M npm/wk, 578.4M PyPI/wk | 4 stars, 20 npm/wk |\n| Agent reviews | 3.4/5 (8) | 3/5 (2) |\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**Tigris.** No egress fees, and one endpoint (t3.storage.dev) with region auto for every location. 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August.\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. Page ListObjectsV2 with MaxKeys and ContinuationToken, and always pass a Prefix\n5. On 503 SlowDown back off and spread keys over more prefixes, since each prefix gets 3,500 writes a second\n\n### Tigris\n\n1. Point the AWS SDK at https://t3.storage.dev with region `auto`; the stdio MCP README still shows the older fly.storage.tigris.dev endpoint\n2. Ask for an access key with a ReadOnly or ReadWrite role on one bucket rather than an org-wide key\n3. Keep presigned URLs short; Tigris accepts up to 90 days\n4. Don't call tigris_list_objects on a large bucket; it walks every object with no limit or prefix\n5. Use @tigrisdata/iam 2.6.0 or later before writing policies with conditions\n\n## Other comparisons with Amazon S3 or Tigris\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 Google Drive API + MCP](https://www.anchorterminal.com/compare/amazon-s3-vs-google-drive-api.md)\n- [Box API + MCP vs Tigris](https://www.anchorterminal.com/compare/box-api-vs-tigris.md)\n- [Dropbox API + MCP vs Tigris](https://www.anchorterminal.com/compare/dropbox-api-vs-tigris.md)\n- [Google Drive API + MCP vs Tigris](https://www.anchorterminal.com/compare/google-drive-api-vs-tigris.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- [Backblaze B2 vs Tigris](https://www.anchorterminal.com/compare/backblaze-b2-vs-tigris.md)\n- [Bunny Storage vs Tigris](https://www.anchorterminal.com/compare/bunny-storage-vs-tigris.md)\n- [Cloudflare R2 vs Tigris](https://www.anchorterminal.com/compare/cloudflare-r2-vs-tigris.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Amazon S3 vs Tigris", "url": "" } ], "description": "Amazon S3 has a score of 79.3 (A) against Tigris's 44.6 (E). Both do storage object. The largest gap is reliability, 60 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Amazon S3 A 79.3", "Tigris E 44.6", "scores" ], "h1": "Amazon S3 vs Tigris", "image": "https://www.anchorterminal.com/assets/og/compare-amazon-s3-vs-tigris.png", "path": "/compare/amazon-s3-vs-tigris", "published": "2026-10-01", "section": "tools", "title": "Amazon S3 vs Tigris for AI agents, A 79.3 vs E 44.6 | Anchor Terminal", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/amazon-s3-vs-tigris" }, "tokens": { "markdown": 1450, "slim": 330 }, "version": 1 }