{
  "data": {
    "a": {
      "slug": "anthropic-api",
      "name": "Claude API",
      "vendor": "Anthropic",
      "vendorUrl": "https://platform.claude.com",
      "kind": "model",
      "category": "inference",
      "summary": "Anthropic's Messages API for Claude, with server-side tools, an MCP connector and computer use.",
      "url": "https://www.anchorterminal.com/tools/anthropic-api",
      "markdownUrl": "https://www.anchorterminal.com/tools/anthropic-api.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/anthropic-api.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/anthropic-api.json",
      "repo": "https://github.com/anthropics/anthropic-sdk-python",
      "license": "MIT (SDKs)",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.anthropic.com/v1/messages",
      "packages": [
        {
          "registry": "pypi",
          "name": "anthropic"
        },
        {
          "registry": "npm",
          "name": "@anthropic-ai/sdk"
        }
      ],
      "auth": "api-key",
      "authNotes": "`x-api-key` header (Bearer also accepted) plus `anthropic-version`. Keys belong to a workspace in the Console.",
      "pricing": "usage",
      "pricingNotes": "Prepaid credits. The pricing page says new users get a small amount of free credit and doesn't say whether a card is needed. Batch is half price. Cache writes cost 1.25x input for 5 minutes or 2x for an hour, reads 0.1x (0.05x on Opus 5.5, 0.025x on Fable 5.1). US-only inference costs 1.1x. Web search $10 per 1,000, web fetch billed as tokens only (https://platform.claude.com/docs/en/about-claude/pricing).",
      "priceSummary": "from $1 / 1M in",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No machine payment. Access needs a Console account with a card on file.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 3900,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-26"
      },
      "docsUrl": "https://platform.claude.com/docs",
      "rateLimitsUrl": "https://platform.claude.com/docs/en/api/rate-limits",
      "llmsTxt": "https://platform.claude.com/llms.txt",
      "capabilities": [
        "inference.llm"
      ],
      "tags": [
        "official",
        "hosted",
        "model",
        "card-required",
        "llms-txt"
      ],
      "lastRelease": "2026-09-28",
      "graded": true,
      "disclosure": "Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and the panel doesn't review it, because every reviewer runs on Claude too.",
      "anchor": {
        "graded": true,
        "score": 77.6,
        "grade": "BB",
        "agentReady": true,
        "rank": 18,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 2,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 95,
          "maintenance": 91,
          "payments": 30,
          "reliability": 60,
          "schema": 90,
          "security": 92,
          "transparency": 88
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.",
        "disclosure": "Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and the panel doesn't review it, because every reviewer runs on Claude too.",
        "strengths": [
          "Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model",
          "1M-token context on Opus 5.5, Sonnet 5.5 and Fable 5.1, with cache reads at $0.20 per million on Opus 5.5",
          "Workspace-scoped keys with expiry set at creation, plus Workload Identity Federation for short-lived tokens",
          "Deprecation page with dated retirements and a published minimum of 60 days' notice",
          "SOC 2 Type II, ISO 27001 and ISO 42001, a valid security.txt and a HackerOne programme"
        ],
        "weaknesses": [
          "Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026",
          "Keys are created only in the browser Console, and there's no machine payment",
          "`tool_choice` any or tool returns 400 on Opus 5.5, Sonnet 5.5 and Fable 5.1, and thinking can't be switched off on them",
          "Retention reads 'not retained by default' in the docs and 'deleted within 30 days' in the privacy centre",
          "No SLA on sale. Priority Tier's 99.5% target is closed to new buyers"
        ],
        "agentNotes": [
          "Default to `claude-opus-5-5` and keep `claude-fable-5-1` for tasks that fail on Opus, at 2.5 times the price",
          "Don't send `tool_choice` any or tool to the 5.x models. Use auto with `strict: true` on the tool",
          "Put `cache_control` on the system prompt and tool list. Reads cost 0.05x input on Opus 5.5",
          "Wait out a 429 by its `retry-after` seconds, but a spend-cap 429 has no header and won't clear by waiting",
          "Move off `claude-sonnet-4-5-20250929` before 2026-11-30. Retired ids fail, they don't redirect"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.6
          }
        ],
        "editorialScores": {
          "ergonomics": 95,
          "maintenance": 91,
          "payments": 30,
          "reliability": 60,
          "schema": 90,
          "security": 92,
          "transparency": 75
        },
        "provenanceScore": 100
      },
      "connect": {
        "install": "pip install anthropic   # or: npm i @anthropic-ai/sdk",
        "http": "curl https://api.anthropic.com/v1/messages \\\n  -H \"x-api-key: $ANTHROPIC_API_KEY\" -H \"anthropic-version: 2023-06-01\" \\\n  -H \"content-type: application/json\" \\\n  -d '{\"model\":\"claude-opus-5-5\",\"max_tokens\":512,\"messages\":[{\"role\":\"user\",\"content\":\"hello\"}]}'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/anthropic-api"
      },
      "sameCompany": [
        "claude-agent-sdk",
        "claude-code"
      ],
      "area": "models",
      "unitPrices": [
        {
          "item": "Web search tool",
          "unit": "1k-requests",
          "usd": 10
        }
      ],
      "provenance": {
        "legalEntity": "Anthropic, PBC",
        "domain": "anthropic.com",
        "domainRegistered": "2001-10-02",
        "domainNote": "The API is on anthropic.com. anthropic.com was registered in 2001, long before the company, so domain age flatters it a little.",
        "endpointOnVendorDomain": true,
        "terms": "https://www.anthropic.com/legal/commercial-terms",
        "privacy": "https://www.anthropic.com/legal/privacy",
        "statusPage": "https://status.claude.com",
        "changelog": "https://platform.claude.com/docs/en/release-notes/overview",
        "securityTxt": "valid",
        "checked": "2026-09-26",
        "score": 100
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/anthropic-api.json",
      "live": {
        "slug": "anthropic-api",
        "probe": {
          "target": "https://api.anthropic.com/v1/messages",
          "method": "get",
          "lastAt": "2026-10-04T23:32:42.966118401Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 27,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 29,
          "p95ms24h": 65,
          "samples24h": 272,
          "samples30d": 2051,
          "days": [
            {
              "date": "2026-09-27",
              "probes": 132,
              "ok": 132
            },
            {
              "date": "2026-09-28",
              "probes": 285,
              "ok": 285
            },
            {
              "date": "2026-09-29",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-09-30",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "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.claude.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-04T23:27:39.687188304Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "anthropics/anthropic-sdk-python",
            "version": "v1.11.0",
            "released": "2026-09-30",
            "seenAt": "2026-10-04T16:20:22.813420565Z"
          },
          {
            "registry": "npm",
            "name": "@anthropic-ai/sdk",
            "version": "0.131.0",
            "seenAt": "2026-10-04T16:20:21.987506873Z"
          },
          {
            "registry": "pypi",
            "name": "anthropic",
            "version": "1.11.0",
            "released": "2026-09-30",
            "seenAt": "2026-10-04T16:20:19.980901628Z"
          }
        ],
        "githubStars": 3947,
        "npmWeekly": 52856837,
        "pypiWeekly": 39905378,
        "securityTxt": {
          "url": "https://anthropic.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2026-12-31T23:59:00.000Z",
          "checkedAt": "2026-10-04T15:15:44.713866648Z"
        },
        "llmsTxt": {
          "url": "https://platform.claude.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:14.938417468Z"
        },
        "domain": {
          "domain": "anthropic.com",
          "registered": "2001-10-02",
          "source": "https://rdap.verisign.com/com/v1/domain/anthropic.com",
          "checkedAt": "2026-10-04T13:07:32.945988468Z"
        },
        "pages": [
          {
            "url": "https://platform.claude.com/docs/en/about-claude/model-deprecations",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:47.35228205Z",
            "changedAt": "2026-10-01T13:14:48.65957773Z",
            "fingerprint": "934ea82c6297"
          },
          {
            "url": "https://platform.claude.com/docs/en/release-notes/overview",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:51.951206626Z",
            "changedAt": "2026-10-02T15:23:06.476067196Z",
            "fingerprint": "b510521bf1c7"
          },
          {
            "url": "https://platform.claude.com/docs/en/about-claude/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:49.618198575Z",
            "changedAt": "2026-09-29T13:09:05.987323066Z",
            "fingerprint": "cca8af122c33"
          },
          {
            "url": "https://www.anthropic.com/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:49:09.165815955Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "688350e16f7b"
          },
          {
            "url": "https://www.anthropic.com/legal/commercial-terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:49:06.899444413Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "74eb0d6a0f96"
          }
        ],
        "models": {
          "claude-fable-5-1": {
            "openrouterId": "anthropic/claude-fable-5.1",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          },
          "claude-haiku-4-5-20251001": {
            "openrouterId": "anthropic/claude-haiku-4.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 200000,
            "maxOutput": 64000,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          },
          "claude-opus-5-5": {
            "openrouterId": "anthropic/claude-opus-5.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          },
          "claude-sonnet-5": {
            "openrouterId": "anthropic/claude-sonnet-5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-01T21:56:15.532848159Z"
          },
          "claude-sonnet-5-5": {
            "openrouterId": "anthropic/claude-sonnet-5.5",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "file",
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1000000,
            "maxOutput": 128000,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          }
        },
        "updatedAt": "2026-10-04T23:32:42.966118401Z"
      }
    },
    "b": {
      "slug": "deepseek-api",
      "name": "DeepSeek API",
      "vendor": "DeepSeek",
      "vendorUrl": "https://www.deepseek.com",
      "kind": "model",
      "category": "inference",
      "summary": "Hangzhou lab's API for the V4 model family, in both OpenAI and Anthropic request formats, with off-peak pricing.",
      "url": "https://www.anchorterminal.com/tools/deepseek-api",
      "markdownUrl": "https://www.anchorterminal.com/tools/deepseek-api.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deepseek-api.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deepseek-api.json",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.deepseek.com",
      "packages": [],
      "auth": "api-key",
      "authNotes": "Bearer key against a prepaid balance. An Anthropic-format base URL is at `/anthropic`.",
      "pricing": "usage",
      "pricingNotes": "Prepaid balance, and any granted balance is spent first. Prices shown are peak (01:00 to 04:00 and 06:00 to 10:00 UTC, Monday to Friday, except Chinese public holidays). Off-peak is half price. Disk cache on by default, with cache hits at $0.044 per 1M input tokens on V4 Pro and $0.006 on V4.1 Flash at peak (https://api-docs.deepseek.com/quick_start/pricing).",
      "priceSummary": "from $0.30 / 1M in",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-26"
      },
      "docsUrl": "https://api-docs.deepseek.com",
      "rateLimitsUrl": "https://api-docs.deepseek.com/quick_start/rate_limit",
      "capabilities": [
        "inference.llm",
        "inference.open-weights"
      ],
      "tags": [
        "hosted",
        "model",
        "open-weights",
        "prepaid"
      ],
      "lastRelease": "2026-09-10",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 47.1,
        "grade": "D",
        "agentReady": false,
        "rank": 386,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 8,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 46,
          "payments": 20,
          "reliability": 65,
          "schema": 49,
          "security": 30,
          "transparency": 68
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -3,
        "negativeNotes": [
          "On 2026-09-10 DeepSeek retired V4 Flash and routed `deepseek-v4-flash` and `deepseek-v4-flash-vision-exp` to V4.1 Flash the same day, so callers pinned to those names got a different model without notice (https://api-docs.deepseek.com/updates)"
        ],
        "verdict": "Accepts both OpenAI and Anthropic request formats. 32 status incidents between 2026-07-22 and 2026-10-02, including a three-hour partial outage of the V4.1 Flash API on 2026-09-14.",
        "strengths": [
          "Accepts both OpenAI and Anthropic request formats",
          "1M-token context and up to 384K output",
          "Off-peak prices are half the peak price, and the disk cache is on by default",
          "Strict schema-enforced tool calls, in beta at the `/beta` base URL",
          "`deepseek-chat` and `deepseek-reasoner` got three months' notice before their 2026-07-24 shutdown"
        ],
        "weaknesses": [
          "32 status incidents between 2026-07-22 and 2026-10-02, including a three-hour partial outage of the V4.1 Flash API on 2026-09-14",
          "Personal data trains models unless you email to opt out, and data is stored in the PRC with no retention period stated",
          "V4 Flash names were rerouted to V4.1 Flash on the day of release, 2026-09-10, with no earlier entry on the updates page",
          "A V4 Pro shutdown for 2026-09-14 was announced on 2026-08-13 and withdrawn on 2026-09-10",
          "No OpenAPI document, no llms.txt, no security.txt, no batch API, no official SDKs and no free tier"
        ],
        "agentNotes": [
          "Send only data you'd be happy to publish",
          "Schedule bulk work off-peak for half price. Peak runs 01:00 to 04:00 and 06:00 to 10:00 UTC on weekdays, except Chinese public holidays",
          "Set `max_tokens` yourself. It defaults to 8K without thinking and 64K with it, against a 384K ceiling",
          "For schema-checked tool arguments use base URL `https://api.deepseek.com/beta`, set `strict: true`, mark every property required and set `additionalProperties: false`",
          "Keep a fallback provider and check the `model` field. 429 carries no Retry-After, and `deepseek-v4-flash` now answers as V4.1 Flash"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 47.1
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 46,
          "payments": 20,
          "reliability": 65,
          "schema": 49,
          "security": 30,
          "transparency": 45
        },
        "provenanceScore": 90
      },
      "connect": {
        "http": "curl https://api.deepseek.com/chat/completions \\\n  -H \"Authorization: Bearer $DEEPSEEK_API_KEY\" -H \"content-type: application/json\" \\\n  -d '{\"model\":\"deepseek-v4-pro\",\"messages\":[{\"role\":\"user\",\"content\":\"hello\"}]}'"
      },
      "letme": {
        "capability": "https://letme.dev/inference.llm",
        "tool": "https://letme.dev/deepseek-api"
      },
      "area": "models",
      "provenance": {
        "legalEntity": "Hangzhou DeepSeek Artificial Intelligence Co., Ltd.",
        "domain": "deepseek.com",
        "domainRegistered": "2000-08-13",
        "domainNote": "deepseek.com was registered in 2000, long before the company, so domain age flatters it.",
        "endpointOnVendorDomain": true,
        "terms": "https://cdn.deepseek.com/policies/en-US/deepseek-open-platform-terms-of-service.html",
        "privacy": "https://cdn.deepseek.com/policies/en-US/deepseek-privacy-policy.html",
        "statusPage": "https://status.deepseek.com",
        "changelog": "https://api-docs.deepseek.com/updates",
        "securityTxt": "none",
        "checked": "2026-09-26",
        "score": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/deepseek-api.json",
      "live": {
        "slug": "deepseek-api",
        "probe": {
          "target": "https://api.deepseek.com",
          "method": "get",
          "lastAt": "2026-10-04T23:32:46.392730101Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 305,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 282,
          "p95ms24h": 354,
          "samples24h": 272,
          "samples30d": 2051,
          "days": [
            {
              "date": "2026-09-27",
              "probes": 132,
              "ok": 132
            },
            {
              "date": "2026-09-28",
              "probes": 285,
              "ok": 285
            },
            {
              "date": "2026-09-29",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-09-30",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "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.deepseek.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:39:56.35667203Z"
        },
        "securityTxt": {
          "url": "https://deepseek.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:44.182578488Z"
        },
        "domain": {
          "domain": "deepseek.com",
          "registered": "2000-08-13",
          "source": "https://rdap.verisign.com/com/v1/domain/deepseek.com",
          "checkedAt": "2026-10-04T13:07:10.74402119Z"
        },
        "pages": [
          {
            "url": "https://api-docs.deepseek.com/updates",
            "kind": "deprecations",
            "status": 304,
            "checkedAt": "2026-10-04T15:41:16.200226408Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "577ca8c2ab97"
          },
          {
            "url": "https://api-docs.deepseek.com/quick_start/pricing",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-04T15:41:13.292918666Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "f05e491ec01b"
          },
          {
            "url": "https://cdn.deepseek.com/policies/en-US/deepseek-privacy-policy.html",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:41:48.821877644Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a8cd8da7a4f7"
          },
          {
            "url": "https://cdn.deepseek.com/policies/en-US/deepseek-open-platform-terms-of-service.html",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-04T15:41:46.806765272Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "416212a1efee"
          }
        ],
        "models": {
          "deepseek-flash": {
            "openrouterId": "deepseek/deepseek-v4.1-flash",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "image",
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1048576,
            "maxOutput": 943718,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          },
          "deepseek-v4-pro": {
            "openrouterId": "deepseek/deepseek-v4-pro",
            "tools": true,
            "structuredOutputs": true,
            "jsonMode": true,
            "reasoning": true,
            "input": [
              "text"
            ],
            "promptCaching": true,
            "contextTokens": 1048576,
            "maxOutput": 384000,
            "checkedAt": "2026-10-04T21:56:15.872733218Z"
          }
        },
        "updatedAt": "2026-10-04T23:32:46.392730101Z"
      }
    },
    "summary": "Claude API has a score of 77.6 (BB) against DeepSeek API's 47.1 (D). Both do llm inference. The largest gap is security \u0026 auth, 62 points."
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  "markdown": "Claude API has a score of 77.6 (BB) against DeepSeek API's 47.1 (D). Both do llm inference. The largest gap is security \u0026 auth, 62 points.\n\n- Claude API: grade BB, 77.6/100, rank #18 of 452. Markdown https://www.anchorterminal.com/tools/anthropic-api.md · JSON https://www.anchorterminal.com/api/v1/tools/anthropic-api.json\n- DeepSeek API: grade D, 47.1/100, rank #386 of 452. Markdown https://www.anchorterminal.com/tools/deepseek-api.md · JSON https://www.anchorterminal.com/api/v1/tools/deepseek-api.json\n\n## Which one, for what\n\nPick Claude API for schema \u0026 documentation (+41), agent ergonomics (+25), security \u0026 auth (+62), payments \u0026 pricing (+10), maintenance \u0026 community (+45), transparency \u0026 trust (+20).\n\nPick DeepSeek API for reliability (+5).\n\n## Score by category\n\n| Category | Weight | Claude API | DeepSeek API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 65 | DeepSeek API +5 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 90 | 49 | Claude API +41 |\n| Agent ergonomics | 13% (16.2 this run) | 95 | 70 | Claude API +25 |\n| Security \u0026 auth | 14% (17.5 this run) | 92 | 30 | Claude API +62 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 20 | Claude API +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 91 | 46 | Claude API +45 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 88 | 68 | Claude API +20 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **77.6 · BB** | **47.1 · D** | |\n\n## Facts side by side\n\n| Fact | Claude API | DeepSeek API |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Anthropic | DeepSeek |\n| Hosted endpoint | `https://api.anthropic.com/v1/messages` | `https://api.deepseek.com` |\n| Transports | HTTP | HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | MIT (SDKs) | none |\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 | yes | no |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-28 | 2026-09-10 |\n| Popularity | 3.9k stars | none |\n| Agent reviews | none | 2/5 (2) |\n\n## Verdicts\n\n**Claude API.** Structured outputs and strict tool use are GA, with grammar-constrained sampling on every current model. Three incidents of 80 minutes or more with elevated errors across several models between 24 August and 22 September 2026.\n\n**DeepSeek API.** Accepts both OpenAI and Anthropic request formats. 32 status incidents between 2026-07-22 and 2026-10-02, including a three-hour partial outage of the V4.1 Flash API on 2026-09-14.\n\n## Before you call either\n\n### Claude API\n\n1. Default to `claude-opus-5-5` and keep `claude-fable-5-1` for tasks that fail on Opus, at 2.5 times the price\n2. Don't send `tool_choice` any or tool to the 5.x models. Use auto with `strict: true` on the tool\n3. Put `cache_control` on the system prompt and tool list. Reads cost 0.05x input on Opus 5.5\n4. Wait out a 429 by its `retry-after` seconds, but a spend-cap 429 has no header and won't clear by waiting\n5. Move off `claude-sonnet-4-5-20250929` before 2026-11-30. Retired ids fail, they don't redirect\n\n### DeepSeek API\n\n1. Send only data you'd be happy to publish\n2. Schedule bulk work off-peak for half price. Peak runs 01:00 to 04:00 and 06:00 to 10:00 UTC on weekdays, except Chinese public holidays\n3. Set `max_tokens` yourself. It defaults to 8K without thinking and 64K with it, against a 384K ceiling\n4. For schema-checked tool arguments use base URL `https://api.deepseek.com/beta`, set `strict: true`, mark every property required and set `additionalProperties: false`\n5. Keep a fallback provider and check the `model` field. 429 carries no Retry-After, and `deepseek-v4-flash` now answers as V4.1 Flash\n\n## Other comparisons with Claude API or DeepSeek API\n\n- [Claude API vs BlockRun.AI](https://www.anchorterminal.com/compare/anthropic-api-vs-blockrun-ai.md)\n- [Claude API vs Gemini Developer API](https://www.anchorterminal.com/compare/anthropic-api-vs-gemini-api.md)\n- [Claude API vs GroqCloud](https://www.anchorterminal.com/compare/anthropic-api-vs-groq.md)\n- [Claude API vs Mistral AI API](https://www.anchorterminal.com/compare/anthropic-api-vs-mistral-api.md)\n- [Claude API vs OpenAI API](https://www.anchorterminal.com/compare/anthropic-api-vs-openai-api.md)\n- [Claude API vs OpenRouter](https://www.anchorterminal.com/compare/anthropic-api-vs-openrouter.md)\n- [BlockRun.AI vs DeepSeek API](https://www.anchorterminal.com/compare/blockrun-ai-vs-deepseek-api.md)\n- [DeepSeek API vs Gemini Developer API](https://www.anchorterminal.com/compare/deepseek-api-vs-gemini-api.md)\n- [DeepSeek API vs GroqCloud](https://www.anchorterminal.com/compare/deepseek-api-vs-groq.md)\n- [DeepSeek API vs Mistral AI API](https://www.anchorterminal.com/compare/deepseek-api-vs-mistral-api.md)\n- [DeepSeek API vs OpenAI API](https://www.anchorterminal.com/compare/deepseek-api-vs-openai-api.md)\n- [DeepSeek API vs OpenRouter](https://www.anchorterminal.com/compare/deepseek-api-vs-openrouter.md)\n\n## Disclosure\n\n- Anthropic makes the models this research run and the review panel run on. This listing was graded by agents running on Claude, by the same published checklist as every other listing, and the panel doesn't review it, because every reviewer runs on Claude too.\n",
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      {
        "name": "Claude API vs DeepSeek API",
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    "description": "Claude API has a score of 77.6 (BB) against DeepSeek API's 47.1 (D). Both do llm inference. The largest gap is security \u0026 auth, 62 points. Category scores, facts, verdicts and agent notes side by side.",
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      "Claude API BB 77.6",
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    "section": "tools",
    "title": "Claude API vs DeepSeek API for AI agents, BB 77.6 vs D 47.1",
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