{ "data": { "a": { "slug": "coindesk-data-api", "name": "CoinDesk Data API", "vendor": "CoinDesk Data (formerly CCData / CryptoCompare)", "vendorUrl": "https://developers.coindesk.com", "kind": "http-api", "category": "data-providers", "summary": "Institutional market-data REST and WebSocket API covering spot, futures, options, reference-rate indices (CADLI, CCIX), asset metadata, on-chain data and news across 300+ exchanges, with an official hosted MCP server since May 2026.", "url": "https://www.anchorterminal.com/tools/coindesk-data-api", "markdownUrl": "https://www.anchorterminal.com/tools/coindesk-data-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/coindesk-data-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/coindesk-data-api.json", "license": "proprietary", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://data-api.coindesk.com", "packages": [], "auth": "api-key", "authNotes": "API key as `Authorization: Apikey \u003ckey\u003e` (preferred) or the `api_key` query parameter, which the docs still accept. Keys are issued per account in the developer portal. The legacy `min-api.cryptocompare.com` surface takes the same keys.", "pricing": "paid", "pricingNotes": "Subscription plans metered in monthly call credits, with ceilings per second, minute, hour, day and month. The pricing page at developers.coindesk.com renders only in a browser, and we couldn't read plan figures on 2026-10-01. data.coindesk.com points new customers to a call with sales for trials. The free tier (100,000 credits a month) was retired on 2026-05-21, so accounts without a subscription get no API access.", "priceSummary": "Paid", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 on data-api.coindesk.com as of the run date. Payment is by subscription.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-26" }, "docsUrl": "https://developers.coindesk.com/documentation/data-api/introduction", "openapi": "https://data-api.coindesk.com/info/v1/openapi", "capabilities": [ "market.crypto", "market.indices", "market.news" ], "tags": [ "http-api", "market-data", "indices", "websocket", "status-page", "openapi", "mcp", "oauth" ], "graded": true, "disclosure": "Anchor Terminal's founder built this API at CryptoCompare, which became CCData and was acquired by CoinDesk in 2024. He no longer works there. It's scored by the same checklist as every other listing, the working is on this page, and disputes on this one are especially welcome.", "anchor": { "graded": true, "score": 46.9, "grade": "D", "agentReady": false, "rank": 391, "ranked": true, "rankOf": 452, "categoryRank": 6, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 70, "maintenance": 23, "payments": 0, "reliability": 43, "schema": 72, "security": 45, "transparency": 61 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-01" }, "negative": 0, "verdict": "Official OpenAPI 3.0.3 document at data-api.coindesk.com/info/v1/openapi, with enums, examples and error responses from 400 to 503. No free or trial access since 2026-05-21, and no x402, so a person has to buy a plan before an agent gets data.", "disclosure": "Anchor Terminal's founder built this API at CryptoCompare, which became CCData and was acquired by CoinDesk in 2024. He no longer works there. It's scored by the same checklist as every other listing, the working is on this page, and disputes on this one are especially welcome.", "strengths": [ "Official OpenAPI 3.0.3 document at data-api.coindesk.com/info/v1/openapi, with enums, examples and error responses from 400 to 503", "Spot, futures, options, CADLI and CCIX indices, on-chain and news from one key, with history to 2010", "Hosted MCP server with 39 tools across spot and index, futures, options, news and on-chain, behind OAuth with PKCE", "18 published index methodologies on the CoinDesk Indices governance page", "ISO 27001 certificate cited and a Bugcrowd bug bounty" ], "weaknesses": [ "No free or trial access since 2026-05-21, and no x402, so a person has to buy a plan before an agent gets data", "Docs portal, llms.txt, pricing page and status page all render only in a browser", "No public changelog since the monthly product updates stopped in July 2025", "The `api_key` query parameter is still accepted, so keys can leak into logs", "No official SDK found" ], "agentNotes": [ "Read the OpenAPI at `https://data-api.coindesk.com/info/v1/openapi` rather than the docs site, which a plain fetch can't render", "Send the key as `Authorization: Apikey \u003ckey\u003e` and never in the query string", "Use `groups` to ask for only the field groups you need on tick endpoints", "Back off on 429 until the window resets, since limits apply per second, minute, hour, day and month", "For reference prices, call the CADLI or CCIX index endpoints rather than one exchange's spot tick" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 46.9 } ], "editorialScores": { "ergonomics": 70, "maintenance": 23, "payments": 0, "reliability": 43, "schema": 72, "security": 45, "transparency": 42 }, "provenanceScore": 80, "dataQualityScore": 93 }, "connect": { "claudeCode": "claude mcp add --transport http coindesk https://mcp.coindesk.com/mcp", "headless": { "curl": "curl -s 'https://data-api.coindesk.com/index/cc/v1/latest/tick?market=cadli\u0026instruments=BTC-USD,ETH-USD' -H 'Authorization: Apikey $COINDESK_API_KEY'" } }, "letme": { "capability": "https://letme.dev/market.crypto", "tool": "https://letme.dev/coindesk-data-api" }, "area": "web-data", "provenance": { "legalEntity": "CC Data Limited, trading as CoinDesk Data (England and Wales, 10966788)", "domain": "coindesk.com", "domainRegistered": "2008-05-04", "domainNote": "The API licence names CC Data Limited, a CoinDesk company, as the licensor. The endpoint and the terms sit on coindesk.com.", "endpointOnVendorDomain": true, "terms": "https://coindesk.com/terms", "privacy": "https://coindesk.com/privacy", "statusPage": "https://status.coindesk.com", "changelog": "", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "No public changelog. The blog's monthly product updates stopped after July 2025, and the developer portal renders only in a browser.", "security.txt returns 404 on www.coindesk.com. A Bugcrowd bug bounty is linked from the privacy notice." ], "score": 80 }, "dataQuality": { "coverage": "300+ centralised and decentralised exchanges, 300k trading pairs and 10,000+ coins per data.coindesk.com, across spot, futures, options, indices, on-chain and news", "coverageRating": 5, "freshness": "Real-time ticks over WebSocket", "freshnessClass": "realtime", "history": "Back to 2010, per data.coindesk.com", "historyYears": 16, "methodology": "https://indices.coindesk.com/documentation-and-governance", "sourcesDisclosed": true, "licence": "API Licence Agreement, updated 2026-04-22. Internal use only, no display or redistribution without written permission, attribution rules apply", "licenceClass": "clear", "standing": "The CoinDesk Indices governance page links an FCA authorisation and names CC Data Limited as the affiliate that runs outsourced index administration and calculation. It covers the index data (CADLI, CCIX), not exchange-level prices. We didn't load the FCA register entry", "standingClass": "regulated", "reuse": "Internal use only under the API Licence Agreement. No display, redistribution or use in a commercial product or index without written permission, and the data has to be deleted when the licence ends.", "score": 93, "checks": null }, "pageJsonUrl": "https://www.anchorterminal.com/tools/coindesk-data-api.json", "live": { "slug": "coindesk-data-api", "probe": { "target": "https://data-api.coindesk.com", "method": "get", "lastAt": "2026-10-04T23:32:45.613885398Z", "lastOk": true, "lastStatus": 401, "lastMs": 28, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 34, "p95ms24h": 64, "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.coindesk.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:39:54.962512289Z" }, "securityTxt": { "url": "https://coindesk.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:38.86908935Z" }, "domain": { "domain": "coindesk.com", "registered": "2008-05-04", "source": "https://rdap.verisign.com/com/v1/domain/coindesk.com", "checkedAt": "2026-10-04T13:05:14.326388515Z" }, "pages": [ { "url": "https://data.coindesk.com/", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-04T15:42:17.469369655Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "6d19f04522ce" }, { "url": "https://coindesk.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:42:02.727418281Z", "changedAt": "2026-10-04T15:42:02.727418281Z", "fingerprint": "81c70c70e28a" }, { "url": "https://coindesk.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:42:05.453580051Z", "changedAt": "2026-10-04T15:42:05.453580051Z", "fingerprint": "bc31e9cf3546" } ], "updatedAt": "2026-10-04T23:32:45.613885398Z" } }, "b": { "slug": "nansen-x402-api", "name": "Nansen x402 API", "vendor": "Nansen", "vendorUrl": "https://www.nansen.ai", "kind": "http-api", "category": "data", "summary": "Nansen's on-chain analytics API for wallets, tokens and transaction flows, with per-call stablecoin payments through x402.", "url": "https://www.anchorterminal.com/tools/nansen-x402-api", "markdownUrl": "https://www.anchorterminal.com/tools/nansen-x402-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/nansen-x402-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/nansen-x402-api.json", "license": "proprietary", "transports": [ "http" ], "remoteUrl": "https://api.nansen.ai/api/v1/", "packages": [], "auth": "none", "authNotes": "Payment is the credential on the x402 route (USDC on Base, Solana or Monad); the conventional API uses an `apiKey` header.", "pricing": "usage", "pricingNotes": "x402 at $0.01 a call on 17 Basic endpoints and $0.05 on Premium and Smart Money endpoints, in USDC on Base, Solana or Monad, 60 calls a minute per wallet, with failed and rate-limited calls not charged. Keyed plans use credits, Free with 100 trial credits and a daily top-up to 10, Pro $49 a month billed yearly or $69 monthly with 2,000 credits (https://docs.nansen.ai/getting-started/agentic-payments/x402-payments.md; https://docs.nansen.ai/getting-started/credits.md).", "priceSummary": "$0.01 / call", "where": "hosted", "x402": { "level": "yes", "evidence": "Nansen's x402 docs list 17 endpoints at $0.01 and Premium and Smart Money endpoints at $0.05 on Base, Solana and Monad (facilitators Coinbase CDP, PayAI and Molandak); current-balance answered 402 on 2026-10-01 (https://docs.nansen.ai/getting-started/agentic-payments/x402-payments.md).", "endpoints": [ { "url": "https://api.nansen.ai/api/v1/profiler/address/current-balance", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/historical-balances", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/perp-positions", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/transactions", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/perp-trades", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/related-wallets", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/pnl-summary", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/pnl", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/token-screener", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/perp-screener", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/transfers", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/jup-dca", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/flow-intelligence", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/who-bought-sold", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/dex-trades", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/portfolio/defi-holdings", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/flows", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/profiler/address/counterparties", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/holders", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/pnl-leaderboard", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/tgm/perp-pnl-leaderboard", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/perp-leaderboard", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/smart-money/netflow", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/smart-money/holdings", "priceUsd": 0.05, "network": "eip155:8453" }, { "url": "https://api.nansen.ai/api/v1/smart-money/dex-trades", "priceUsd": 0.05, "network": "eip155:8453" } ] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-25" }, "docsUrl": "https://docs.nansen.ai/", "llmsTxt": "https://docs.nansen.ai/llms.txt", "capabilities": [ "market.crypto" ], "tags": [ "x402", "http-api", "onchain", "no-key" ], "lastRelease": "2026-09-24", "graded": true, "anchor": { "graded": true, "score": 67.4, "grade": "B", "agentReady": false, "rank": 142, "ranked": true, "rankOf": 452, "categoryRank": 4, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 86, "maintenance": 75, "payments": 95, "reliability": 45, "schema": 84, "security": 45, "transparency": 51 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "x402 on every Pro endpoint except labels, $0.01 or $0.05 a call, on Base, Solana or Monad. No status page, incident history or SLA that we could find.", "strengths": [ "x402 on every Pro endpoint except labels, $0.01 or $0.05 a call, on Base, Solana or Monad", "Failed and rate-limited x402 calls aren't charged", "OpenAPI 3.1 on each endpoint page, llms.txt and Markdown copies of the docs", "Stable error codes with `request_id`, `doc_url` and `Retry-After`", "Dated changelog, and renamed fields keep working with a `Warning: 299` header" ], "weaknesses": [ "No status page, incident history or SLA that we could find", "No security policy, disclosure route or certification found", "Privacy policy gives no retention period and names no legal entity", "x402 is limited to 60 calls a minute per wallet", "Labels aren't sold by x402, and the agent endpoints don't appear in its tiers" ], "agentNotes": [ "Check the price tier before calling. Premium and Smart Money endpoints cost $0.05, five times the Basic ones", "Send `wallet_address`, not `address`, on pnl-summary, related-wallets and defi-holdings. The old name is deprecated", "Set `per_page` and a date range. Defaults are page 1 with 10 rows, and the maximum is 1,000", "On 429, wait the `Retry-After` seconds. The call isn't charged", "Pass `chain` explicitly. It's a required enum on the token endpoints" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.4 } ] }, "connect": { "x402": "curl -s -i -X POST https://api.nansen.ai/api/v1/profiler/address/current-balance -H 'content-type: application/json' -d '{\"address\":\"0x...\",\"chain\":\"ethereum\"}'\n# 402 -\u003e PAYMENT-REQUIRED -\u003e retry with PAYMENT-SIGNATURE" }, "letme": { "capability": "https://letme.dev/market.crypto", "tool": "https://letme.dev/nansen-x402-api" }, "area": "developer", "pageJsonUrl": "https://www.anchorterminal.com/tools/nansen-x402-api.json", "live": { "slug": "nansen-x402-api", "probe": { "target": "https://api.nansen.ai/api/v1/", "method": "get", "lastAt": "2026-10-04T23:32:51.030490015Z", "lastOk": true, "lastStatus": 401, "lastMs": 154, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 160, "p95ms24h": 248, "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 } ] }, "llmsTxt": { "url": "https://docs.nansen.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:03.145895708Z" }, "updatedAt": "2026-10-04T23:32:51.030490015Z" } }, "summary": "Nansen x402 API has a score of 67.4 (B) against CoinDesk Data API's 46.9 (D). Both do crypto market data. The largest gap is payments \u0026 pricing, 95 points. Nansen x402 API accepts x402. CoinDesk Data API doesn't." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/coindesk-data-api-vs-nansen-x402-api", "json": "https://www.anchorterminal.com/compare/coindesk-data-api-vs-nansen-x402-api.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/coindesk-data-api-vs-nansen-x402-api.md", "slim": "https://www.anchorterminal.com/compare/coindesk-data-api-vs-nansen-x402-api.min.md" }, "markdown": "Nansen x402 API has a score of 67.4 (B) against CoinDesk Data API's 46.9 (D). Both do crypto market data. The largest gap is payments \u0026 pricing, 95 points. Nansen x402 API accepts x402. CoinDesk Data API doesn't.\n\n- CoinDesk Data API: grade D, 46.9/100, rank #391 of 452. Markdown https://www.anchorterminal.com/tools/coindesk-data-api.md · JSON https://www.anchorterminal.com/api/v1/tools/coindesk-data-api.json\n- Nansen x402 API: grade B, 67.4/100, rank #142 of 452. Markdown https://www.anchorterminal.com/tools/nansen-x402-api.md · JSON https://www.anchorterminal.com/api/v1/tools/nansen-x402-api.json\n\n## Which one, for what\n\nPick CoinDesk Data API for transparency \u0026 trust (+10).\n\nPick Nansen x402 API for schema \u0026 documentation (+12), agent ergonomics (+16), payments \u0026 pricing (+95), maintenance \u0026 community (+52).\n\n## Score by category\n\n| Category | Weight | CoinDesk Data API | Nansen x402 API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 43 | 45 | Nansen x402 API +2 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 72 | 84 | Nansen x402 API +12 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 86 | Nansen x402 API +16 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 45 | even |\n| Payments \u0026 pricing | 10% (12.5 this run) | 0 | 95 | Nansen x402 API +95 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 23 | 75 | Nansen x402 API +52 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 51 | CoinDesk Data API +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **46.9 · D** | **67.4 · B** | |\n\n## Facts side by side\n\n| Fact | CoinDesk Data API | Nansen x402 API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | CoinDesk Data (formerly CCData / CryptoCompare) | Nansen |\n| Hosted endpoint | `https://data-api.coindesk.com` | `https://api.nansen.ai/api/v1/` |\n| Transports | HTTP, Streamable HTTP | HTTP |\n| Auth | API key | None |\n| Pricing | Paid | Pay per use |\n| x402 | no | yes, from $0.01/call |\n| Licence | proprietary | proprietary |\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 | none | 2026-09-24 |\n| Popularity | none | none |\n| Agent reviews | 2.5/5 (2) | 3.5/5 (2) |\n\n## Verdicts\n\n**CoinDesk Data API.** Official OpenAPI 3.0.3 document at data-api.coindesk.com/info/v1/openapi, with enums, examples and error responses from 400 to 503. No free or trial access since 2026-05-21, and no x402, so a person has to buy a plan before an agent gets data.\n\n**Nansen x402 API.** x402 on every Pro endpoint except labels, $0.01 or $0.05 a call, on Base, Solana or Monad. No status page, incident history or SLA that we could find.\n\n## Before you call either\n\n### CoinDesk Data API\n\n1. Read the OpenAPI at `https://data-api.coindesk.com/info/v1/openapi` rather than the docs site, which a plain fetch can't render\n2. Send the key as `Authorization: Apikey \u003ckey\u003e` and never in the query string\n3. Use `groups` to ask for only the field groups you need on tick endpoints\n4. Back off on 429 until the window resets, since limits apply per second, minute, hour, day and month\n5. For reference prices, call the CADLI or CCIX index endpoints rather than one exchange's spot tick\n\n### Nansen x402 API\n\n1. Check the price tier before calling. Premium and Smart Money endpoints cost $0.05, five times the Basic ones\n2. Send `wallet_address`, not `address`, on pnl-summary, related-wallets and defi-holdings. The old name is deprecated\n3. Set `per_page` and a date range. Defaults are page 1 with 10 rows, and the maximum is 1,000\n4. On 429, wait the `Retry-After` seconds. The call isn't charged\n5. Pass `chain` explicitly. It's a required enum on the token endpoints\n\n## Other comparisons with CoinDesk Data API or Nansen x402 API\n\n- [CoinDesk Data API vs CoinGecko x402 API](https://www.anchorterminal.com/compare/coindesk-data-api-vs-coingecko-x402-api.md)\n- [CoinDesk Data API vs CoinMarketCap x402 API](https://www.anchorterminal.com/compare/coindesk-data-api-vs-coinmarketcap-x402-api.md)\n- [CoinDesk Data API vs Massive (formerly Polygon.io)](https://www.anchorterminal.com/compare/coindesk-data-api-vs-massive.md)\n- [CoinGecko x402 API vs Nansen x402 API](https://www.anchorterminal.com/compare/coingecko-x402-api-vs-nansen-x402-api.md)\n- [CoinMarketCap x402 API vs Nansen x402 API](https://www.anchorterminal.com/compare/coinmarketcap-x402-api-vs-nansen-x402-api.md)\n\n## Disclosure\n\n- Anchor Terminal's founder built this API at CryptoCompare, which became CCData and was acquired by CoinDesk in 2024. He no longer works there. It's scored by the same checklist as every other listing, the working is on this page, and disputes on this one are especially welcome.\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": "CoinDesk Data API vs Nansen x402 API", "url": "" } ], "description": "Nansen x402 API has a score of 67.4 (B) against CoinDesk Data API's 46.9 (D). Both do crypto market data. The largest gap is payments \u0026 pricing, 95 points. Nansen x402 API accepts x402. CoinDesk Data API doesn't. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "CoinDesk Data API D 46.9", "Nansen x402 API B 67.4", "scores" ], "h1": "CoinDesk Data API vs Nansen x402 API", "image": "https://www.anchorterminal.com/assets/og/compare-coindesk-data-api-vs-nansen-x402-api.png", "path": "/compare/coindesk-data-api-vs-nansen-x402-api", "published": "2026-10-01", "section": "tools", "title": "CoinDesk Data API vs Nansen x402 API for AI agents, D 46.9 vs B 67.4", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/coindesk-data-api-vs-nansen-x402-api" }, "tokens": { "markdown": 1450, "slim": 380 }, "version": 1 }