{
  "data": {
    "a": {
      "slug": "higgsfield",
      "name": "Higgsfield API",
      "vendor": "Higgsfield Inc.",
      "vendorUrl": "https://higgsfield.ai",
      "kind": "http-api",
      "category": "video-generation",
      "summary": "Higgsfield's API for generating images and video from its own models (Genjutsu, Soul, Cinema Studio) and hosted ones such as Kling, Seedance and Wan. Requests are asynchronous, with polling or webhooks, and Python and TypeScript SDKs.",
      "url": "https://www.anchorterminal.com/tools/higgsfield",
      "markdownUrl": "https://www.anchorterminal.com/tools/higgsfield.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/higgsfield.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/higgsfield.json",
      "repo": "https://github.com/higgsfield-ai/higgsfield-client",
      "license": "Proprietary service under the Higgsfield API Terms of Service. The Python SDK repository is Apache-2.0 and the TypeScript SDK is MIT on npm",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.higgsfield.ai",
      "packages": [
        {
          "registry": "pypi",
          "name": "higgsfield-client"
        },
        {
          "registry": "npm",
          "name": "@higgsfield/client"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve. A person signs up at open.higgsfield.ai (email and password, or SSO) and creates a key ID and secret in the console. Send them as `Authorization: Key \u003ckey_id\u003e:\u003ckey_secret\u003e`. The legacy `hf-api-key` and `hf-secret` headers still work. Keys belong to a workspace and carry no scopes. Some endpoints that depict a real person's face or voice can need identity or business verification under the API terms.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go from a prepaid balance, priced per second of video or per image, with list prices public at open.higgsfield.ai/pricing. No free credits or free tier were found, and no sandbox. Kling 3.0 lists from $0.084 a second and Seedance 2.5 from $0.206. A lower max-discount price is shown beside each, and a cashback scheme starts at $5,000 of spend in 30 days. Credits expire after a year (checked 2026-10-08).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI file, llms.txt or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 126,
        "npmWeekly": 197350,
        "pypiWeekly": 28142,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.higgsfield.ai/docs",
      "llmsTxt": "https://docs.higgsfield.ai/docs/llms.txt",
      "openapi": "https://docs.higgsfield.ai/docs/openapi.json",
      "capabilities": [
        "video.generate",
        "video.image-to-video",
        "video.edit",
        "video.audio",
        "image.generate",
        "image.edit"
      ],
      "tags": [
        "official",
        "hosted",
        "closed-source",
        "model-platform",
        "card-required",
        "openapi",
        "llms-txt",
        "async-jobs",
        "webhooks",
        "idempotency",
        "python",
        "typescript",
        "status-page"
      ],
      "lastRelease": "2026-09-17",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 63.5,
        "grade": "B",
        "agentReady": false,
        "rank": 356,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 3,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 77,
          "maintenance": 75,
          "payments": 20,
          "reliability": 85,
          "schema": 69,
          "security": 48,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "One asynchronous API for 67 video and 17 image catalogue entries, with idempotency keys, per-second list prices public without a login, and failed or moderated jobs not charged. API inputs and outputs train Higgsfield's models unless the workspace opts out, and the docs carry no changelog. The API returns 400 at the concurrency limit, with no Retry-After.",
        "bestFor": "An agent that wants several vendors' video models behind one key, one request lifecycle and safe retries, at published per-second prices.",
        "strengths": [
          "Per-second list prices for each model on open.higgsfield.ai/pricing without a login, and an `/estimate/...` call that returns the cost before submitting",
          "`Idempotency-Key` on every generation endpoint, with replays returning the original `request_id` and no second charge",
          "Requests ending `failed` or `nsfw` aren't charged, and a queued request cancelled before it starts is refunded",
          "Each model page carries a full JSON Schema with enums, limits and `additionalProperties: false`, and llms.txt and Markdown twins exist",
          "status.higgsfield.ai shows no notices and 100.0 per cent for the API from August to October 2026"
        ],
        "weaknesses": [
          "API inputs and outputs can train Higgsfield's models by default. The opt-out is a workspace setting, processed within 10 business days",
          "Reaching the concurrency limit returns `400 Bad Request` with a message string, and the docs say no rate-limit headers or `Retry-After` are sent",
          "No changelog was found in the docs, although the API terms name one as the channel for deprecations and removals",
          "Keys have no scopes or read-only mode, and no webhook signature is documented",
          "No free credits were found, and a new account starts at 2 concurrent generations until it adds $25",
          "`/docs/openapi.json` covers 8 paths of an 84-entry catalogue, and llms.txt calls it supplementary"
        ],
        "agentNotes": [
          "Send `Authorization: Key \u003ckey_id\u003e:\u003ckey_secret\u003e` to https://api.higgsfield.ai. A Bearer token is rejected",
          "Send a fresh `Idempotency-Key` with every generation. After a timeout or 5xx, repeat the same request with the same key, then read `status_url`",
          "Treat a 400 whose `detail` mentions concurrent requests as a limit, not a bad request. Wait for a running job to finish before submitting more",
          "Poll `status_url` from 2 seconds up to 10 with jitter, and stop on `completed`, `failed`, `nsfw` or `canceled`",
          "Download output within seven days. Media files may be deleted after that",
          "Read the model's own docs page for its schema. The OpenAPI file lists only a few models"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 63.5
          }
        ],
        "editorialScores": {
          "ergonomics": 77,
          "maintenance": 75,
          "payments": 20,
          "reliability": 85,
          "schema": 69,
          "security": 48,
          "transparency": 45
        },
        "provenanceScore": 77
      },
      "connect": {
        "install": "pip install higgsfield-client",
        "http": "curl --request POST \\\n  --url https://api.higgsfield.ai/higgsfield/genjutsu/motion-transfer/v1.0 \\\n  --header \"Authorization: Key ${HF_API_KEY_ID}:${HF_API_KEY_SECRET}\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\"video_url\": \"https://example.com/input.mp4\", \"image_urls\": [\"https://example.com/input.jpg\"]}'"
      },
      "letme": {
        "capability": "https://letme.dev/video.generate",
        "tool": "https://letme.dev/higgsfield"
      },
      "area": "content",
      "unitPrices": [
        {
          "item": "Kling 3.0, list price from",
          "unit": "video-second",
          "usd": 0.084,
          "note": "The pricing page also shows a max-discount price from $0.042. The discount's conditions weren't readable"
        },
        {
          "item": "Seedance 2.5, list price from",
          "unit": "video-second",
          "usd": 0.206,
          "note": "Max-discount price from $0.144"
        },
        {
          "item": "Wan 3.0 Prime, list price from",
          "unit": "video-second",
          "usd": 0.068,
          "note": "Max-discount price from $0.041"
        },
        {
          "item": "Genjutsu 480p, list price",
          "unit": "video-second",
          "usd": 0.318,
          "note": "Per second of source video, rounded up. 720p $0.681 and 1080p $1.632 per the docs. Max-discount price from $0.159"
        },
        {
          "item": "Kling 2.5, list price from",
          "unit": "video-second",
          "usd": 0.042,
          "note": "Max-discount price from $0.021"
        }
      ],
      "provenance": {
        "legalEntity": "Higgsfield Inc.",
        "domain": "higgsfield.ai",
        "domainRegistered": "2023-06-07",
        "endpointOnVendorDomain": true,
        "terms": "https://open.higgsfield.ai/terms-of-service",
        "privacy": "https://higgsfield.ai/privacy-policy",
        "statusPage": "https://status.higgsfield.ai",
        "changelog": "",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The API Terms of Service (last updated 2 September 2026) name Higgsfield Inc., 535 Mission St, 14th Floor, San Francisco, CA 94105, and are supplemental to the Terms of Use Agreement of 26 July 2026 at https://higgsfield.ai/terms-of-use-agreement.",
          "The privacy policy (last updated 26 July 2026, effective 27 August 2026) says it covers the website, applications and APIs. The API terms incorporate a DPA where Higgsfield processes personal data on a customer's behalf. We found no public link to it.",
          "The API answers at https://api.higgsfield.ai and the console at https://open.higgsfield.ai (console.higgsfield.ai redirects there).",
          "https://higgsfield.ai/.well-known/security.txt has a contact, a PGP key and an expiry of 12 September 2027. Its comment block is a set of instructions addressed to AI agents and automated security tools about testing scope. We recorded it and did not act on it.",
          "No changelog page is in the docs sitemap. The API terms list a changelog as part of the documentation.",
          "RDAP for higgsfield.ai gives a registration date of 2023-06-07."
        ],
        "score": 77
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/higgsfield.json",
      "live": {
        "slug": "higgsfield",
        "probe": {
          "target": "https://api.higgsfield.ai",
          "method": "get",
          "lastAt": "2026-10-09T11:46:30.376819325Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 161,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 161,
          "p95ms24h": 245,
          "samples24h": 44,
          "samples30d": 44,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 44,
              "ok": 44
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.higgsfield.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:58:03.234604982Z"
        },
        "updatedAt": "2026-10-09T11:46:30.376819325Z"
      }
    },
    "answer": "Higgsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories.",
    "b": {
      "slug": "kling",
      "name": "Kling AI API",
      "vendor": "Kling AI (Kuaishou)",
      "vendorUrl": "https://kling.ai",
      "kind": "model",
      "category": "video-generation",
      "summary": "Kuaishou's developer API for its Kling video models (Kling 3.0, 3.0 Omni, Video O1, 2.6, 2.5 Turbo and older).",
      "url": "https://www.anchorterminal.com/tools/kling",
      "markdownUrl": "https://www.anchorterminal.com/tools/kling.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/kling.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/kling.json",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api-singapore.klingai.com",
      "packages": [],
      "auth": "api-key",
      "authNotes": "AccessKey and SecretKey from the developer console. You sign a short-lived JWT (HS256) with them and send it as a Bearer token. Global endpoint api-singapore.klingai.com, China endpoint api-beijing.klingai.com.",
      "pricing": "usage",
      "pricingNotes": "Prepaid API resource packages, separate from consumer memberships. Kling 3.0 is $0.084 a second (standard, no audio), $0.126 with audio, $0.112 pro, $0.168 pro with audio, $0.42 at 4K. 3.0 Omni and Video O1 run $0.084 to $0.168 a second. Kling 2.6 is $0.21 per 5 second standard clip, $0.70 per 5 seconds pro with audio. Third-party reviews put packages from a $9.80 trial (30 days) to $7,560, which we couldn't confirm on the JS-only pricing page (https://kling.ai/dev/pricing).",
      "priceSummary": "Pay per use",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 in kling.ai/llms.txt or the developer pages (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://kling.ai/document-api/guides/get-started/overview",
      "llmsTxt": "https://kling.ai/llms.txt",
      "capabilities": [
        "video.generate",
        "video.image-to-video",
        "video.edit",
        "video.audio",
        "video.extend"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "card-required",
        "llms-txt",
        "async-jobs",
        "commercial-licence"
      ],
      "lastRelease": "2026-06-17",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 21.7,
        "grade": "F",
        "agentReady": false,
        "rank": 837,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 12,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 27,
          "maintenance": 24,
          "payments": 20,
          "reliability": 15,
          "schema": 15,
          "security": 20,
          "transparency": 43
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "low",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Kling 3.0 from $0.084 a second, with audio from $0.126. Developer docs, API terms and pricing render only with JavaScript.",
        "bestFor": "Buyers who want Kling's quality and price and are willing to sign JWTs and read the docs in a browser.",
        "strengths": [
          "Kling 3.0 from $0.084 a second, with audio from $0.126",
          "4K on Kling 3.0 and 3.0 Omni, plus motion control and multi-shot",
          "Every model from kling-v1 to kling-v3 still callable",
          "kling.ai/llms.txt lists model IDs and per-second prices"
        ],
        "weaknesses": [
          "Developer docs, API terms and pricing render only with JavaScript",
          "No official SDK, OpenAPI, status page or changelog",
          "Auth needs a self-signed JWT, and Turbo and later models need newly generated keys",
          "Prepaid resource packages, separate from consumer credits",
          "The Terms of Service let Kling train on your Input unless you revoke it by email"
        ],
        "agentNotes": [
          "Sign a JWT (HS256) with `iss` set to your AccessKey and a 30 minute `exp`, then send it as a bearer token",
          "Generate a new key pair if you need Kling 3.0 Turbo. Older keys don't reach it",
          "Create with POST /v1/videos/text2video or /v1/videos/image2video, then poll the task id until it succeeds",
          "Take model IDs and prices from kling.ai/llms.txt. The HTML docs need JavaScript",
          "Email support@kling.ai to revoke training use of your Input. The terms don't exempt API calls"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "low",
            "grade": "F",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 21.7
          }
        ],
        "editorialScores": {
          "ergonomics": 27,
          "maintenance": 24,
          "payments": 20,
          "reliability": 15,
          "schema": 15,
          "security": 20,
          "transparency": 30
        },
        "provenanceScore": 56
      },
      "connect": {
        "http": "curl -X POST https://api-singapore.klingai.com/v1/videos/text2video \\\n  -H \"Authorization: Bearer $KLING_JWT\" -H \"Content-Type: application/json\" \\\n  -d '{\"model_name\":\"kling-v3\",\"prompt\":\"a red fox running through snow\",\"mode\":\"std\",\"duration\":\"5\"}'"
      },
      "letme": {
        "capability": "https://letme.dev/video.generate",
        "tool": "https://letme.dev/kling"
      },
      "area": "content",
      "unitPrices": [
        {
          "item": "Kling 3.0 std, no audio",
          "unit": "video-second",
          "usd": 0.084
        },
        {
          "item": "Kling 3.0 std, with audio",
          "unit": "video-second",
          "usd": 0.126
        },
        {
          "item": "Kling 3.0 pro, with audio",
          "unit": "video-second",
          "usd": 0.168,
          "note": "$0.112 without audio"
        },
        {
          "item": "Kling 3.0 4K",
          "unit": "video-second",
          "usd": 0.42
        },
        {
          "item": "Kling 3.0 Omni pro, video input",
          "unit": "video-second",
          "usd": 0.168
        },
        {
          "item": "Kling 2.6 std, no audio",
          "unit": "video-second",
          "usd": 0.042,
          "note": "$0.21 per 5 second clip"
        },
        {
          "item": "Kling 2.6 pro, with audio",
          "unit": "video-second",
          "usd": 0.14,
          "note": "$0.70 per 5 second clip"
        }
      ],
      "provenance": {
        "legalEntity": "Kling AI Pte. Ltd.",
        "domain": "klingai.com",
        "domainRegistered": "2024-03-26",
        "endpointOnVendorDomain": true,
        "terms": "https://kling.ai/docs/user-policy",
        "privacy": "https://kling.ai/docs/privacy-policy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The site moved from klingai.com to kling.ai (registered 2022-06-05). API endpoints stay on klingai.com",
          "Legal entity taken from the API paid-service terms as shown in search results. The page itself renders only with JavaScript",
          "Parent company is Kuaishou Technology, Beijing"
        ],
        "score": 56
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/kling.json",
      "live": {
        "slug": "kling",
        "probe": {
          "target": "https://api-singapore.klingai.com",
          "method": "get",
          "lastAt": "2026-10-09T11:46:31.622500861Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 257,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 231,
          "p95ms24h": 909,
          "samples24h": 259,
          "samples30d": 2311,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "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": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 125,
              "ok": 125
            }
          ]
        },
        "securityTxt": {
          "url": "https://klingai.com/.well-known/security.txt",
          "state": "unknown",
          "checkedAt": "2026-10-08T15:39:02.937686213Z"
        },
        "llmsTxt": {
          "url": "https://kling.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:33.463569206Z"
        },
        "domain": {
          "domain": "klingai.com",
          "registered": "2024-03-26",
          "source": "https://rdap.verisign.com/com/v1/domain/klingai.com",
          "checkedAt": "2026-10-04T13:05:36.938846559Z"
        },
        "pages": [
          {
            "url": "https://kling.ai/dev/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:06.983966463Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b1a9957f712d"
          },
          {
            "url": "https://kling.ai/docs/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:09.313933915Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "44c37d76f01c"
          },
          {
            "url": "https://kling.ai/docs/user-policy",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:11.258741258Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fc7d8efdde4a"
          }
        ],
        "updatedAt": "2026-10-09T11:46:31.622500861Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "Model API",
        "name": "Kind"
      },
      {
        "a": "Higgsfield Inc.",
        "b": "Kling AI (Kuaishou)",
        "name": "Vendor"
      },
      {
        "a": "https://api.higgsfield.ai",
        "b": "https://api-singapore.klingai.com",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under the Higgsfield API Terms of Service. The Python SDK repository is Apache-2.0 and the TypeScript SDK is MIT on npm",
        "b": "none",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-09-17",
        "b": "2026-06-17",
        "name": "Last release"
      },
      {
        "a": "2026-09-02",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "2026-07-26",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes, with an opt-out",
        "b": "yes, with an opt-out",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "126 stars, 197k npm/wk, 28k PyPI/wk",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "2.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Higgsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories.",
        "question": "Which is better for AI agents, Higgsfield API or Kling AI API?"
      },
      {
        "answer": "Both need an API key.",
        "question": "Do Higgsfield API and Kling AI API need an API key?"
      },
      {
        "answer": "Yes. Higgsfield API has a hosted endpoint at https://api.higgsfield.ai and Kling AI API at https://api-singapore.klingai.com.",
        "question": "Can an agent call Higgsfield API and Kling AI API without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 85 against 15",
          "Schema \u0026 documentation, 69 against 15",
          "Agent ergonomics, 77 against 27",
          "Security \u0026 auth, 48 against 20",
          "Maintenance \u0026 community, 75 against 24",
          "Transparency \u0026 trust, 61 against 43"
        ],
        "also": null,
        "goodFor": "An agent that wants several vendors' video models behind one key, one request lifecycle and safe retries, at published per-second prices.",
        "slug": "higgsfield",
        "watchFor": "API inputs and outputs can train Higgsfield's models by default. The opt-out is a workspace setting, processed within 10 business days"
      },
      {
        "aheadOn": null,
        "also": null,
        "goodFor": "Buyers who want Kling's quality and price and are willing to sign JWTs and read the docs in a browser.",
        "slug": "kling",
        "watchFor": "Developer docs, API terms and pricing render only with JavaScript"
      }
    ],
    "job": {
      "capability": "video.generate",
      "name": "Video generate"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/alibaba-wan-vs-higgsfield.json",
        "title": "Alibaba Wan (Model Studio) vs Higgsfield API",
        "url": "https://www.anchorterminal.com/compare/alibaba-wan-vs-higgsfield"
      },
      {
        "json": "https://www.anchorterminal.com/compare/alibaba-wan-vs-kling.json",
        "title": "Alibaba Wan (Model Studio) vs Kling AI API",
        "url": "https://www.anchorterminal.com/compare/alibaba-wan-vs-kling"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fal-video-vs-higgsfield.json",
        "title": "fal video models vs Higgsfield API",
        "url": "https://www.anchorterminal.com/compare/fal-video-vs-higgsfield"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fal-video-vs-kling.json",
        "title": "fal video models vs Kling AI API",
        "url": "https://www.anchorterminal.com/compare/fal-video-vs-kling"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-veo-vs-higgsfield.json",
        "title": "Google Veo vs Higgsfield API",
        "url": "https://www.anchorterminal.com/compare/google-veo-vs-higgsfield"
      },
      {
        "json": "https://www.anchorterminal.com/compare/google-veo-vs-kling.json",
        "title": "Google Veo vs Kling AI API",
        "url": "https://www.anchorterminal.com/compare/google-veo-vs-kling"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-luma.json",
        "title": "Higgsfield API vs Luma AI API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-luma"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-minimax-video.json",
        "title": "Higgsfield API vs MiniMax Video API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-minimax-video"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-openai-sora.json",
        "title": "Higgsfield API vs OpenAI Sora API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-openai-sora"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-pika.json",
        "title": "Higgsfield API vs Pika API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-pika"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-pixverse.json",
        "title": "Higgsfield API vs PixVerse API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-pixverse"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-replicate-video.json",
        "title": "Higgsfield API vs Replicate video models",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-replicate-video"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-runway.json",
        "title": "Higgsfield API vs Runway API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-runway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/higgsfield-vs-vidu.json",
        "title": "Higgsfield API vs Vidu API",
        "url": "https://www.anchorterminal.com/compare/higgsfield-vs-vidu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-luma.json",
        "title": "Kling AI API vs Luma AI API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-luma"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-minimax-video.json",
        "title": "Kling AI API vs MiniMax Video API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-minimax-video"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-openai-sora.json",
        "title": "Kling AI API vs OpenAI Sora API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-openai-sora"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-pika.json",
        "title": "Kling AI API vs Pika API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-pika"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-pixverse.json",
        "title": "Kling AI API vs PixVerse API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-pixverse"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-replicate-video.json",
        "title": "Kling AI API vs Replicate video models",
        "url": "https://www.anchorterminal.com/compare/kling-vs-replicate-video"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-runway.json",
        "title": "Kling AI API vs Runway API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-runway"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kling-vs-vidu.json",
        "title": "Kling AI API vs Vidu API",
        "url": "https://www.anchorterminal.com/compare/kling-vs-vidu"
      }
    ],
    "scores": [
      {
        "by": 70,
        "edge": "higgsfield",
        "higgsfield": 85,
        "key": "reliability",
        "kling": 15,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 54,
        "edge": "higgsfield",
        "higgsfield": 69,
        "key": "schema",
        "kling": 15,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 50,
        "edge": "higgsfield",
        "higgsfield": 77,
        "key": "ergonomics",
        "kling": 27,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 28,
        "edge": "higgsfield",
        "higgsfield": 48,
        "key": "security",
        "kling": 20,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 0,
        "edge": "",
        "higgsfield": 20,
        "key": "payments",
        "kling": 20,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 51,
        "edge": "higgsfield",
        "higgsfield": 75,
        "key": "maintenance",
        "kling": 24,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 18,
        "edge": "higgsfield",
        "higgsfield": 61,
        "key": "transparency",
        "kling": 43,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Higgsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories. Both do video generate.",
    "verdicts": {
      "higgsfield": "One asynchronous API for 67 video and 17 image catalogue entries, with idempotency keys, per-second list prices public without a login, and failed or moderated jobs not charged. API inputs and outputs train Higgsfield's models unless the workspace opts out, and the docs carry no changelog. The API returns 400 at the concurrency limit, with no Retry-After.",
      "kling": "Kling 3.0 from $0.084 a second, with audio from $0.126. Developer docs, API terms and pricing render only with JavaScript."
    }
  },
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  "links": {
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    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/higgsfield-vs-kling.md",
    "slim": "https://www.anchorterminal.com/compare/higgsfield-vs-kling.min.md"
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  "markdown": "Higgsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories. Both do video generate.\n\n- Higgsfield API: grade B, 63.5/100, rank #356 of 842. Markdown https://www.anchorterminal.com/tools/higgsfield.md · JSON https://www.anchorterminal.com/api/v1/tools/higgsfield.json\n- Kling AI API: grade F, 21.7/100, rank #837 of 842. Markdown https://www.anchorterminal.com/tools/kling.md · JSON https://www.anchorterminal.com/api/v1/tools/kling.json\n\n## Which one, for what\n\n### Higgsfield API (B)\n\nGood for: An agent that wants several vendors' video models behind one key, one request lifecycle and safe retries, at published per-second prices.\n\nAhead on:\n- Reliability, 85 against 15\n- Schema \u0026 documentation, 69 against 15\n- Agent ergonomics, 77 against 27\n- Security \u0026 auth, 48 against 20\n- Maintenance \u0026 community, 75 against 24\n- Transparency \u0026 trust, 61 against 43\n\nWatch for: API inputs and outputs can train Higgsfield's models by default. The opt-out is a workspace setting, processed within 10 business days\n\n### Kling AI API (F)\n\nGood for: Buyers who want Kling's quality and price and are willing to sign JWTs and read the docs in a browser.\n\nWatch for: Developer docs, API terms and pricing render only with JavaScript\n\n\n## Score by category\n\n| Category | Weight | Higgsfield API | Kling AI API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 85 | 15 | Higgsfield API +70 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 69 | 15 | Higgsfield API +54 |\n| Agent ergonomics | 13% (16.2 this run) | 77 | 27 | Higgsfield API +50 |\n| Security \u0026 auth | 14% (17.5 this run) | 48 | 20 | Higgsfield API +28 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 20 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 75 | 24 | Higgsfield API +51 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 43 | Higgsfield API +18 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **63.5 · B** | **21.7 · F** | |\n\n## Facts side by side\n\n| Fact | Higgsfield API | Kling AI API |\n| --- | --- | --- |\n| Kind | HTTP API | Model API |\n| Vendor | Higgsfield Inc. | Kling AI (Kuaishou) |\n| Hosted endpoint | `https://api.higgsfield.ai` | `https://api-singapore.klingai.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 | Proprietary service under the Higgsfield API Terms of Service. The Python SDK repository is Apache-2.0 and the TypeScript SDK is MIT on npm | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-17 | 2026-06-17 |\n| Terms last updated | 2026-09-02 | no date given |\n| Privacy policy last updated | 2026-07-26 | no date given |\n| Customer content may train models | yes, with an opt-out | yes, with an opt-out |\n| Terms restrict automated access | not found in the text | yes |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 126 stars, 197k npm/wk, 28k PyPI/wk | none |\n| Agent reviews | none | 2.5/5 (2) |\n\n## Verdicts\n\n**Higgsfield API.** One asynchronous API for 67 video and 17 image catalogue entries, with idempotency keys, per-second list prices public without a login, and failed or moderated jobs not charged. API inputs and outputs train Higgsfield's models unless the workspace opts out, and the docs carry no changelog. The API returns 400 at the concurrency limit, with no Retry-After.\n\n**Kling AI API.** Kling 3.0 from $0.084 a second, with audio from $0.126. Developer docs, API terms and pricing render only with JavaScript.\n\n## Before you call either\n\n### Higgsfield API\n\n1. Send `Authorization: Key \u003ckey_id\u003e:\u003ckey_secret\u003e` to https://api.higgsfield.ai. A Bearer token is rejected\n2. Send a fresh `Idempotency-Key` with every generation. After a timeout or 5xx, repeat the same request with the same key, then read `status_url`\n3. Treat a 400 whose `detail` mentions concurrent requests as a limit, not a bad request. Wait for a running job to finish before submitting more\n4. Poll `status_url` from 2 seconds up to 10 with jitter, and stop on `completed`, `failed`, `nsfw` or `canceled`\n5. Download output within seven days. Media files may be deleted after that\n6. Read the model's own docs page for its schema. The OpenAPI file lists only a few models\n\n### Kling AI API\n\n1. Sign a JWT (HS256) with `iss` set to your AccessKey and a 30 minute `exp`, then send it as a bearer token\n2. Generate a new key pair if you need Kling 3.0 Turbo. Older keys don't reach it\n3. Create with POST /v1/videos/text2video or /v1/videos/image2video, then poll the task id until it succeeds\n4. Take model IDs and prices from kling.ai/llms.txt. The HTML docs need JavaScript\n5. Email support@kling.ai to revoke training use of your Input. The terms don't exempt API calls\n\n## Questions\n\n### Which is better for AI agents, Higgsfield API or Kling AI API?\n\nHiggsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories.\n\n### Do Higgsfield API and Kling AI API need an API key?\n\nBoth need an API key.\n\n### Can an agent call Higgsfield API and Kling AI API without installing anything?\n\nYes. Higgsfield API has a hosted endpoint at https://api.higgsfield.ai and Kling AI API at https://api-singapore.klingai.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/higgsfield-vs-kling.json, and with the fewest tokens: https://www.anchorterminal.com/compare/higgsfield-vs-kling.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"higgsfield\", \"b\": \"kling\"}`. From a terminal: `anchor compare higgsfield kling`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/higgsfield.json and https://www.anchorterminal.com/api/v1/tools/kling.json\n\n## Other comparisons with Higgsfield API or Kling AI API\n\n- [Alibaba Wan (Model Studio) vs Higgsfield API](https://www.anchorterminal.com/compare/alibaba-wan-vs-higgsfield.md)\n- [Alibaba Wan (Model Studio) vs Kling AI API](https://www.anchorterminal.com/compare/alibaba-wan-vs-kling.md)\n- [fal video models vs Higgsfield API](https://www.anchorterminal.com/compare/fal-video-vs-higgsfield.md)\n- [fal video models vs Kling AI API](https://www.anchorterminal.com/compare/fal-video-vs-kling.md)\n- [Google Veo vs Higgsfield API](https://www.anchorterminal.com/compare/google-veo-vs-higgsfield.md)\n- [Google Veo vs Kling AI API](https://www.anchorterminal.com/compare/google-veo-vs-kling.md)\n- [Higgsfield API vs Luma AI API](https://www.anchorterminal.com/compare/higgsfield-vs-luma.md)\n- [Higgsfield API vs MiniMax Video API](https://www.anchorterminal.com/compare/higgsfield-vs-minimax-video.md)\n- [Higgsfield API vs OpenAI Sora API](https://www.anchorterminal.com/compare/higgsfield-vs-openai-sora.md)\n- [Higgsfield API vs Pika API](https://www.anchorterminal.com/compare/higgsfield-vs-pika.md)\n- [Higgsfield API vs PixVerse API](https://www.anchorterminal.com/compare/higgsfield-vs-pixverse.md)\n- [Higgsfield API vs Replicate video models](https://www.anchorterminal.com/compare/higgsfield-vs-replicate-video.md)\n- [Higgsfield API vs Runway API](https://www.anchorterminal.com/compare/higgsfield-vs-runway.md)\n- [Higgsfield API vs Vidu API](https://www.anchorterminal.com/compare/higgsfield-vs-vidu.md)\n- [Kling AI API vs Luma AI API](https://www.anchorterminal.com/compare/kling-vs-luma.md)\n- [Kling AI API vs MiniMax Video API](https://www.anchorterminal.com/compare/kling-vs-minimax-video.md)\n- [Kling AI API vs OpenAI Sora API](https://www.anchorterminal.com/compare/kling-vs-openai-sora.md)\n- [Kling AI API vs Pika API](https://www.anchorterminal.com/compare/kling-vs-pika.md)\n- [Kling AI API vs PixVerse API](https://www.anchorterminal.com/compare/kling-vs-pixverse.md)\n- [Kling AI API vs Replicate video models](https://www.anchorterminal.com/compare/kling-vs-replicate-video.md)\n- [Kling AI API vs Runway API](https://www.anchorterminal.com/compare/kling-vs-runway.md)\n- [Kling AI API vs Vidu API](https://www.anchorterminal.com/compare/kling-vs-vidu.md)\n",
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    "description": "Higgsfield API scores 63.5 (B) on agent readiness against Kling AI API's 21.7 (F), and leads in 6 of 7 scored categories. Both do video generate. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Higgsfield API vs Kling AI API for AI agents, B 63.5 vs F 21.7",
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