{ "data": { "a": { "slug": "breakcold", "name": "Breakcold", "vendor": "Logike SAS", "vendorUrl": "https://www.breakcold.com", "kind": "http-api", "category": "crm", "summary": "Breakcold is a CRM for small sales teams that syncs email, LinkedIn, WhatsApp and Telegram conversations into one pipeline. Agents reach its records, tasks, notes and inbox through a REST API and a hosted MCP server.", "url": "https://www.anchorterminal.com/tools/breakcold", "markdownUrl": "https://www.anchorterminal.com/tools/breakcold.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/breakcold.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/breakcold.json", "dns": "breakcold.grade.anchorterminal.com", "transports": [ "streamable-http" ], "remoteUrl": "https://mcp.breakcold.com/mcp/v1", "packages": [], "auth": "mixed", "authNotes": "API keys (`bc_live_` prefix) are created in Settings \u003e API keys with chosen scopes (records, tasks, notes, inbox, inbox send, CRM metadata and others, read and write separate), an optional workspace limit and an expiry, shown once and revocable, with activity history. MCP clients can instead sign in by OAuth with PKCE through WorkOS AuthKit and dynamic client registration. Multi-organisation users send `X-Breakcold-Organization-Id`.", "pricing": "paid", "pricingNotes": "One plan in three sizes: X1 $99 a month (1 seat), X5 $199 (5 seats) and X20 $499 (20 seats), each with MCP access, 10% off quarterly and 20% off yearly. Extra seats $10 a month. A 14-day trial needs a card. API and MCP calls draw on a weekly AI usage allowance at 0.2 tokens a read and 0.4 a write; a weekly reset costs $50.", "priceSummary": "$99 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the OpenAPI spec, auth.md, the docs or the pricing page (checked 2026-11-06). Calls draw on a plan's weekly usage allowance.", "endpoints": [] }, "toolCount": 72, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://docs.breakcold.com/api/overview", "llmsTxt": "https://docs.breakcold.com/llms.txt", "openapi": "https://docs.breakcold.com/api/openapi.json", "capabilities": [ "crm.records", "crm.pipeline", "crm.activities", "crm.search", "crm.webhooks", "email.send", "email.threads" ], "tags": [ "official", "hosted", "mcp", "remote-mcp", "oauth", "openapi", "llms-txt", "paid", "trial", "webhooks", "idempotency", "eu" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 58, "grade": "C", "agentReady": false, "rank": 766, "ranked": true, "rankOf": 1486, "categoryRank": 9, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 67, "maintenance": 60, "payments": 15, "reliability": 45, "schema": 90, "security": 60, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-06" }, "negative": 0, "verdict": "Breakcold's API and hosted MCP server are built for agents, with an OpenAPI contract, scoped and expiring keys, published rate limits, idempotency keys and message sends that stay drafts until confirmed. No status page, SLA or security certification was found, and the only trial needs a card on a plan from $99 a month.", "bestFor": "Small sales teams who run outreach on email and social channels and want an agent to keep records, tasks and replies in order.", "strengths": [ "API keys take scopes, a workspace limit and an expiry, and MCP also accepts OAuth with PKCE", "Compose and send tools draft by default and send only with an explicit `sendMode`", "OpenAPI 3.1 contract of 70 described operations, llms.txt and Markdown docs", "Rate limits published per organisation, workspace, identity and route, with Retry-After and `retryAfterMs`", "Public DPA with a provider inventory and 30 days' notice of new subprocessors" ], "weaknesses": [ "No status page or SLA was found; status.breakcold.com did not answer", "72 MCP tools by default, and their annotations are not published", "The only trial needs a card, and plans start at $99 a month", "No security.txt, bug bounty or security certification found", "No official SDK, and the CRM MCP server is not in the official MCP registry" ], "agentNotes": [ "Call `capabilities_list` or `tools_search` first to see which tools the granted scopes allow", "Send an Idempotency-Key on REST creates and a stable idempotency key on `records_create`, so retries return the original result", "Leave `sendMode` unset on compose and send tools until the user has confirmed the message", "Pass `fields` on record lists to cut the response to the fields you need", "On 429 wait for Retry-After or `retryAfterMs`; over MCP the error code is -32029" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 58 } ], "editorialScores": { "ergonomics": 67, "maintenance": 60, "payments": 15, "reliability": 45, "schema": 90, "security": 60, "transparency": 69 }, "provenanceScore": 64, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl \"https://rest.breakcold.com/api/v1/workspaces\" -H \"Authorization: Bearer YOUR_API_KEY\"", "claudeCode": "claude mcp add --transport http breakcold https://mcp.breakcold.com/mcp/v1", "config": { "mcpServers": { "breakcold": { "url": "https://mcp.breakcold.com/mcp/v1" } } } }, "letme": { "capability": "https://letme.dev/crm.records", "tool": "https://letme.dev/breakcold" }, "area": "business", "unitPrices": [ { "item": "X1 plan (1 seat)", "unit": "month", "usd": 99, "note": "Billed monthly; 10% off quarterly, 20% off yearly" }, { "item": "X5 plan (5 seats)", "unit": "month", "usd": 199, "note": "AI usage five times X1" }, { "item": "X20 plan (20 seats)", "unit": "month", "usd": 499, "note": "AI usage twenty times X1" }, { "item": "Extra seat or connected account", "unit": "seat-month", "usd": 10, "note": "On every plan" } ], "provenance": { "legalEntity": "Logike SAS", "domain": "breakcold.com", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.breakcold.com/legal/terms-and-conditions", "privacy": "https://www.breakcold.com/legal/privacy", "statusPage": "", "changelog": "https://docs.breakcold.com/api/changelog", "securityTxt": "none", "checked": "2026-11-06", "notes": [ "The terms and conditions (19 October 2026) name Logike SAS, SIREN 902303395, RCS Paris, share capital EUR 1,000, 128 rue de la Boétie, 75008 Paris, under French law. A services agreement, developer terms (3 September 2026), DPA (27 October 2026) and vulnerability disclosure policy (3 September 2026) sit in the legal centre.", "The developer terms ask integrations to respect published rate limits and not rotate keys to evade them; no clause against reading public pages was found.", "www.breakcold.com/robots.txt allows all but /admin and /api with Content-Signal ai-train=no, search=yes, ai-input=yes; docs.breakcold.com allows all; rest.breakcold.com and mcp.breakcold.com carry only content-signal comments. One unauthenticated GET to rest.breakcold.com/api/v1/openapi.json, sent before its robots.txt was read, answered 401.", "/.well-known/security.txt returns 404. status.breakcold.com failed the TLS handshake. Domain registration date not checked.", "WebFetch received 404 for the pricing and legal pages, which answered 200 to a plain request, so those were read with curl." ], "score": 64 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/breakcold.json", "live": { "slug": "breakcold", "probe": { "target": "https://mcp.breakcold.com/mcp/v1", "method": "get", "lastAt": "2026-11-07T18:20:14.868914805Z", "lastOk": true, "lastStatus": 401, "lastMs": 133, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 62, "p95ms24h": 146, "samples24h": 200, "samples30d": 200, "days": [ { "date": "2026-11-06", "probes": 13, "ok": 13 }, { "date": "2026-11-07", "probes": 187, "ok": 187 } ] }, "securityTxt": { "url": "https://breakcold.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:00:18.103639801Z" }, "llmsTxt": { "url": "https://docs.breakcold.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:31:44.782472776Z" }, "pages": [ { "url": "https://docs.breakcold.com/api/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:05:21.53355824Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "f02d2d2285f0" }, { "url": "https://www.breakcold.com/legal/privacy", "kind": "privacy", "status": 404, "checkedAt": "2026-11-07T14:26:05.166026349Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://www.breakcold.com/legal/terms-and-conditions", "kind": "terms", "status": 404, "checkedAt": "2026-11-07T14:26:07.751718301Z", "changedAt": "0001-01-01T00:00:00Z" } ], "mcpTools": { "url": "https://mcp.breakcold.com/mcp/v1", "checkedAt": "2026-11-07T01:42:53.267576496Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-11-07T01:42:53.267576496Z" }, "updatedAt": "2026-11-07T18:20:14.868914805Z" } }, "answer": "Breakcold scores 58 (C) on agent readiness against Copper API's 47.1 (D), and leads in 4 of 7 scored categories. Copper API leads on reliability, payments \u0026 pricing and transparency \u0026 trust.", "b": { "slug": "copper", "name": "Copper API", "vendor": "Copper", "vendorUrl": "https://www.copper.com", "kind": "http-api", "category": "crm", "summary": "REST API for Copper, the CRM built around Google Workspace.", "url": "https://www.anchorterminal.com/tools/copper", "markdownUrl": "https://www.anchorterminal.com/tools/copper.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/copper.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/copper.json", "dns": "copper.grade.anchorterminal.com", "transports": [ "http" ], "remoteUrl": "https://api.copper.com/developer_api/v1", "packages": [], "auth": "mixed", "authNotes": "Personal API key sent in the `X-PW-AccessToken` header together with `X-PW-Application: developer_api` and `X-PW-UserEmail` (the email of the key's owner). Keys are generated under System settings, API Keys, and admins can see every user's keys. OAuth 2.0 (added 2023-08-11) is the route for partner integrations.", "pricing": "paid", "pricingNotes": "No free plan, only a trial, and the pricing page says no card is needed. The security page gives the trial as 14 days. Basic $29 a seat a month billed monthly or $23 billed yearly (2,500 contacts), Professional $69 or $59 (15,000 contacts), Business $134 or $99 (unlimited contacts). API access is documented for Professional, Business and the trial, not Basic (https://www.copper.com/pricing).", "priceSummary": "$59 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No payments. API access follows the Copper subscription.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developer.copper.com", "capabilities": [ "crm.records", "crm.pipeline", "crm.activities", "crm.search", "crm.webhooks" ], "tags": [ "hosted", "closed-source", "webhooks", "no-card" ], "lastRelease": "2026-07-02", "graded": true, "anchor": { "graded": true, "score": 47.1, "grade": "D", "agentReady": false, "rank": 1145, "ranked": true, "rankOf": 1486, "categoryRank": 15, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 40, "maintenance": 16, "payments": 30, "reliability": 79, "schema": 48, "security": 28, "transparency": 79 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-05" }, "negative": 0, "verdict": "Published limits of 180 requests a minute and 3 a second for bulk endpoints, and a change policy with at least six months of support for deprecated APIs. No official MCP server or OpenAPI file, and API keys carry their owner's full rights with no scopes.", "bestFor": "Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.", "strengths": [ "Published limits of 180 requests a minute and 3 a second for bulk endpoints", "Change policy promises notice by email and docs, and at least six months of support, before breaking changes", "No status incidents between 7 August and 5 November 2026, with a Developer API component on the status page", "Privacy policy states US-only hosting, a 180-day purge after expiry and no AI training on Workspace API data", "Trial with no card, per the pricing page" ], "weaknesses": [ "No official MCP server or OpenAPI file, and the website's llms.txt doesn't link the API docs", "API keys carry the owner's full rights, and admins can see every user's key", "No documented error format, Retry-After or idempotency", "Basic plan has no API access, so the first plan with it costs $59 a seat a month yearly", "Three changelog entries in 2026, the newest API change on 2 July, and bulk endpoints still beta since 2023" ], "agentNotes": [ "Send `X-PW-AccessToken`, `X-PW-Application: developer_api` and `X-PW-UserEmail` on every call, or it fails", "Set `page_size` to 200 and stop when a page comes back short, since `X-PW-TOTAL` is only an upper bound", "Back off on 429 on your own clock, since no Retry-After is documented", "Narrow searches that would pass 100,000 records, which is where results stop", "Read connect fields before you update a record, because an update that omits them can delete connections" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 1.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 47.1 } ], "editorialScores": { "ergonomics": 40, "maintenance": 16, "payments": 30, "reliability": 79, "schema": 48, "security": 28, "transparency": 72 }, "provenanceScore": 86, "checked": { "categories": { "ergonomics": "2026-11-05", "maintenance": "2026-11-05", "payments": "2026-11-05", "reliability": "2026-11-05", "schema": "2026-11-05", "security": "2026-11-05", "transparency": "2026-11-05" }, "last": "2026-11-05", "lastMoved": "2026-11-05", "oldest": "2026-11-05", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl https://api.copper.com/developer_api/v1/account \\\n -H \"X-PW-AccessToken: $COPPER_API_KEY\" -H \"X-PW-Application: developer_api\" \\\n -H \"X-PW-UserEmail: $COPPER_USER_EMAIL\" -H \"Content-Type: application/json\"" }, "letme": { "capability": "https://letme.dev/crm.records", "tool": "https://letme.dev/copper" }, "area": "business", "unitPrices": [ { "item": "Professional (first plan with API access)", "unit": "seat-month", "usd": 59, "note": "billed yearly; $69 billed monthly" }, { "item": "Business", "unit": "seat-month", "usd": 99, "note": "billed yearly; $134 billed monthly" }, { "item": "Basic (no API access)", "unit": "seat-month", "usd": 23, "note": "billed yearly; $29 billed monthly" } ], "provenance": { "legalEntity": "Copper CRM, Inc.", "domain": "copper.com", "domainRegistered": "1994-02-07", "domainNote": "copper.com was registered in 1994, long before the company renamed itself from ProsperWorks.", "endpointOnVendorDomain": true, "terms": "https://www.copper.com/terms", "privacy": "https://www.copper.com/privacy", "statusPage": "https://status.copper.com", "changelog": "https://developer.copper.com/introduction/changelog.html", "securityTxt": "none", "checked": "2026-11-05", "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/copper.json", "live": { "slug": "copper", "probe": { "target": "https://api.copper.com/developer_api/v1", "method": "get", "lastAt": "2026-11-07T18:20:18.714784499Z", "lastOk": true, "lastStatus": 404, "lastMs": 361, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 283, "p95ms24h": 384, "samples24h": 239, "samples30d": 7910, "days": [ { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 251, "ok": 251 }, { "date": "2026-10-29", "probes": 248, "ok": 248 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 248, "ok": 248 }, { "date": "2026-11-04", "probes": 246, "ok": 246 }, { "date": "2026-11-05", "probes": 185, "ok": 185 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 187, "ok": 187 } ] }, "vendorStatus": { "page": "https://status.copper.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T18:20:59.381290023Z" }, "securityTxt": { "url": "https://copper.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T15:59:55.740585211Z" }, "domain": { "domain": "copper.com", "registered": "1994-02-07", "source": "https://rdap.verisign.com/com/v1/domain/copper.com", "checkedAt": "2026-11-01T14:22:19.335982652Z" }, "pages": [ { "url": "https://developer.copper.com/introduction/changelog.html", "kind": "changelog", "status": 304, "checkedAt": "2026-11-07T14:03:02.035030077Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3189aee56061" }, { "url": "https://www.copper.com/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-11-07T14:27:26.340538898Z", "changedAt": "2026-10-27T03:59:36.989502577Z", "fingerprint": "aeddeadc00c8" }, { "url": "https://www.copper.com/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-11-07T14:27:28.414330533Z", "changedAt": "2026-10-27T03:59:39.052898555Z", "fingerprint": "f9e257003a2a" }, { "url": "https://www.copper.com/terms", "kind": "terms", "status": 304, "checkedAt": "2026-11-07T14:27:35.89794144Z", "changedAt": "2026-10-27T03:59:41.10357547Z", "fingerprint": "65e534407bd6" } ], "updatedAt": "2026-11-07T18:20:18.714784499Z" } }, "edges": [ { "by": 44, "category": "maintenance", "leads": "breakcold", "name": "Maintenance \u0026 community", "reasons": { "a": "API changelog entry on 6 November 2026 (30). More than 60 dated entries since 8 August 2026 (20). Closed service with a public API changelog, an RSS feed, a help centre and support by email; no public issue tracker (10 of 15). The CRM MCP server is not in the official MCP registry (the registry's io.github.breakcold/inboxmcp is a separate product at inbox-mcp.com), and no official SDK exists (0). No package to check (0). 30 + 20 + 10 + 0 + 0 = 60.", "b": "Last API change on 2 July 2026 (S3 upload token), 126 days before this check. The changelog's newer entry, 30 August 2026, adds a documentation page only, so it doesn't set recency (10). Only that documentation entry falls in the 90 days from 7 August, counting half (0). Public changelog with three entries in 2026 and a support centre. We didn't test support (6 of 15, the earlier partial, kept). No official SDK in any language (0). No packages to judge (0). 10+0+6+0+0 = 16." }, "scores": { "a": 60, "b": 16 } }, { "by": 42, "category": "schema", "leads": "breakcold", "name": "Schema \u0026 documentation", "reasons": { "a": "OpenAPI 3.1 contract at docs.breakcold.com/api/openapi.json with 70 operations, each with a description (25). llms.txt and a Markdown copy of each page, plus auth.md and an MCP server card (10). Tool descriptions say how to use them, such as `records_create` asking for every required field and a stable idempotency key and the send tools saying to send only after the user confirms (17 of 20). 84 enums and 488 required lists, with typed attribute pages for each field type (13 of 15). Every operation documents 400 to 429 responses and the error body is shown, but the spec carries only two examples (10 of 15). /api/v1, and an API changelog with dated entries and migration steps (15). 25 + 10 + 17 + 13 + 10 + 15 = 90.", "b": "No OpenAPI spec. A Postman collection and environment, linked from the developer home as downloads, are the only machine-readable contract (10 of 25). No llms.txt or Markdown docs on the developer site. The website's llms.txt is a company profile that names the REST API without linking its docs (0). Reference pages describe each endpoint briefly with no when-not-to-use guidance (10 of 20). Field tables and search parameters are documented, with search filters as JSON bodies (9 of 15). Request and response examples, but no error code reference (7 of 15). Dated changelog, a single v1 path and a published change policy. Only three entries in 2026 (12 of 15). 10+0+10+9+7+12 = 48." }, "scores": { "a": 90, "b": 48 } }, { "by": 34, "category": "reliability", "leads": "copper", "name": "Reliability", "reasons": { "a": "Graded as a hosted service on the REST API and hosted MCP server. No status page is linked from the site or docs, and status.breakcold.com failed the TLS handshake (0). With no readable history the incident line scores 5. Rate limits published per organisation (600 a minute), workspace (300), identity or key (180) and route (120), for REST and MCP (15). 429 carries Retry-After and `retryAfterMs`, the docs give backoff guidance, and creates take an Idempotency-Key so retries return the original result (15). No SLA found in the services agreement summary, the pricing page or the docs (0). Neither surface is marked beta (10). 0 + 5 + 15 + 15 + 0 + 10 = 45.", "b": "Status page at status.copper.com with 15 components, among them Developer API and Rest API \u0026 Web Application, read from its history page on 5 November 2026 (20). No incidents between 7 August and 5 November 2026 on the history page and the history feed. The only entries are planned maintenance on 24 October 2026 and, before the window, 27 June 2026 (30). Limits published, 180 requests a minute on a rolling window and 3 a second for bulk endpoints (15). 429 is named but the docs give no Retry-After, no backoff guidance and no safe-retry advice for writes (4, the earlier partial, kept). No SLA found (0). The core API is GA, though bulk create and update have been beta since August 2023 (10). 20+30+15+4+0+10 = 79." }, "scores": { "a": 45, "b": 79 } }, { "by": 32, "category": "security", "leads": "breakcold", "name": "Security \u0026 auth", "reasons": { "a": "API keys take chosen read and write scopes, an optional workspace limit and an expiry, are shown once, show activity history and can be revoked. MCP also accepts OAuth with PKCE through WorkOS AuthKit. Tokens travel in headers (30). Read-only keys are possible and message sends stay drafts until `sendMode` is set after the user confirms (17 of 20). The inbox returns email, LinkedIn, WhatsApp and Telegram text from outside parties, and no prompt-injection guidance was found (0). API key activity history is visible to the user; no organisation audit log was found (7 of 15). A vulnerability disclosure policy (3 September 2026) with reports to support@breakcold.com, no bounty, no security.txt (404) and no SOC 2 or ISO 27001 found (6 of 20). 30 + 17 + 0 + 7 + 6 = 60.", "b": "Personal API keys sent in `X-PW-AccessToken` with the owner's email, carrying that user's full rights. Admins can see every user's keys. OAuth 2.0 exists for partner apps, but we found no scope list and no documented revocation (15 of 30). No read-only or scoped keys. Access follows the user's role (3 of 20). Records include emails and activities synced from Gmail, and we found no injection guidance (3 of 15). No API audit log found (0 of 15). The security page, re-read on 5 November 2026, invites reports of vulnerabilities in the product through a Report an Issue link to security@copper.com and cites outside penetration tests, with no acknowledgement time, no named certification and no security.txt (404 on 1 October). That is a disclosure route with no stated time (7). The trust centre at trust.copper.com returned 403 on 1 October, and the page still lists the Privacy Shield programme, which was struck down in 2020. 15+3+3+0+7 = 28." }, "scores": { "a": 60, "b": 28 } }, { "by": 27, "category": "ergonomics", "leads": "breakcold", "name": "Agent ergonomics", "reasons": { "a": "72 MCP tools (5), with `tools_search` and `capabilities_list` to find tools by capability or granted scope, and scopes that limit which tools apply (8 back). Cursor pagination, record search and a `fields` selection on record lists since 3 November (18 of 20). Errors carry a code, message, `requestId` and `retryAfterMs`, and the 4 November changelog removed stack frames from messages (17 of 20). Idempotency keys on creates, and compose and send tools return a non-sending draft by default; MCP annotations are not published (14 of 20). No official SDK; setup is one URL with OAuth (5 of 15). 13 + 18 + 17 + 14 + 5 = 67.", "b": "No MCP server. Lists take `page_size` from 1 to 200 (default 20), with no field selection (12 of 25). Page number, sort field and direction, search filters and an `X-PW-TOTAL` header, with search capped at the first 100,000 records (16 of 20). Error responses aren't documented beyond the 429 (5 of 20). No idempotency keys or upserts found (3 of 20). Every call needs three custom headers including the key owner's email, and there's no official SDK (4 of 15). 12+16+5+3+4 = 40." }, "scores": { "a": 67, "b": 40 } }, { "by": 15, "category": "payments", "leads": "copper", "name": "Payments \u0026 pricing", "reasons": { "a": "No x402, MPP or L402 (0). Plan prices are public, and each call's cost in usage tokens is published, but the money value of a token is not (10). The 14-day trial needs a card (0). auth.md documents an agent identity endpoint that takes an identity assertion or an anonymous request followed by a claim by a person, which we read and did not call; access still needs a paid or card-backed trial account (5 of 20). 0 + 10 + 0 + 5 = 15.", "b": "No x402, MPP or L402 (0). Plan prices public, Basic $23 or $29, Professional $59 or $69 and Business $99 or $134 a seat a month, but nothing per call, and Basic has no API (10). Free trial, and the pricing page says 'no credit card required' (20). A person signs up in a browser and generates the key (0). Prices and the no-card trial re-read on 5 November 2026. 0+10+20+0 = 30." }, "scores": { "a": 15, "b": 30 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Logike SAS", "b": "Copper", "name": "Vendor" }, { "a": "https://mcp.breakcold.com/mcp/v1", "b": "https://api.copper.com/developer_api/v1", "name": "Hosted endpoint" }, { "a": "Streamable HTTP", "b": "HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Paid", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "72", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-11-06", "b": "2026-07-02", "name": "Last release" }, { "a": "couldn't be read", "b": "2025-07-01", "name": "Terms last updated" }, { "a": "couldn't be read", "b": "2026-05-11", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "yes", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "1.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Breakcold scores 58 (C) on agent readiness against Copper API's 47.1 (D), and leads in 4 of 7 scored categories. Copper API leads on reliability, payments \u0026 pricing and transparency \u0026 trust.", "question": "Which is better for AI agents, Breakcold or Copper API?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do Breakcold and Copper API need an API key?" }, { "answer": "Yes. Breakcold has a hosted endpoint at https://mcp.breakcold.com/mcp/v1 and Copper API at https://api.copper.com/developer_api/v1.", "question": "Can an agent call Breakcold and Copper API without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 90 against 48", "Agent ergonomics, 67 against 40", "Security \u0026 auth, 60 against 28", "Maintenance \u0026 community, 60 against 16" ], "also": null, "goodFor": "Small sales teams who run outreach on email and social channels and want an agent to keep records, tasks and replies in order.", "slug": "breakcold", "watchFor": "No status page or SLA was found; status.breakcold.com did not answer" }, { "aheadOn": [ "Reliability, 79 against 45", "Payments \u0026 pricing, 30 against 15", "Transparency \u0026 trust, 79 against 67" ], "also": [ "Free to start without a card" ], "goodFor": "Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.", "slug": "copper", "watchFor": "No official MCP server or OpenAPI file, and the website's llms.txt doesn't link the API docs" } ], "history": { "breakcold": null, "copper": [ { "causes": [ "correction", "time" ], "date": "2026-11-05", "delta": 0.4, "from": 46.7, "fromGrade": "D", "to": 47.1, "toGrade": "D" }, { "causes": [ "evidence" ], "date": "2026-10-29", "delta": -0.1, "from": 46.8, "fromGrade": "D", "to": 46.7, "toGrade": "D" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.1, "from": 46.7, "fromGrade": "D", "to": 46.8, "toGrade": "D" } ] }, "job": { "capability": "crm.records", "name": "CRM records" }, "others": [ { "json": "https://www.anchorterminal.com/compare/affinity-vs-breakcold.json", "title": "Affinity vs Breakcold", "url": "https://www.anchorterminal.com/compare/affinity-vs-breakcold" }, { "json": "https://www.anchorterminal.com/compare/affinity-vs-copper.json", "title": "Affinity vs Copper API", "url": "https://www.anchorterminal.com/compare/affinity-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/attio-vs-breakcold.json", "title": "Attio API + MCP vs Breakcold", "url": "https://www.anchorterminal.com/compare/attio-vs-breakcold" }, { "json": "https://www.anchorterminal.com/compare/attio-vs-copper.json", "title": "Attio API + MCP vs Copper API", "url": "https://www.anchorterminal.com/compare/attio-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-capsule-crm.json", "title": "Breakcold vs Capsule CRM", "url": "https://www.anchorterminal.com/compare/breakcold-vs-capsule-crm" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-close.json", "title": "Breakcold vs Close API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-close" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-dynamics-365-sales.json", "title": "Breakcold vs Microsoft Dynamics 365 Sales", "url": "https://www.anchorterminal.com/compare/breakcold-vs-dynamics-365-sales" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-folk.json", "title": "Breakcold vs folk API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-folk" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-freshsales.json", "title": "Breakcold vs Freshsales API", "url": "https://www.anchorterminal.com/compare/breakcold-vs-freshsales" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-hubspot-mcp.json", "title": "Breakcold vs HubSpot API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-hubspot-mcp" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-nutshell.json", "title": "Breakcold vs Nutshell", "url": "https://www.anchorterminal.com/compare/breakcold-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-payani-ai.json", "title": "Breakcold vs Payani AI", "url": "https://www.anchorterminal.com/compare/breakcold-vs-payani-ai" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-pipedrive.json", "title": "Breakcold vs Pipedrive API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-pipedrive" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-relaticle.json", "title": "Breakcold vs Relaticle", "url": "https://www.anchorterminal.com/compare/breakcold-vs-relaticle" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-salesflare.json", "title": "Breakcold vs Salesflare", "url": "https://www.anchorterminal.com/compare/breakcold-vs-salesflare" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-salesforce.json", "title": "Breakcold vs Salesforce API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-salesforce" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-streak.json", "title": "Breakcold vs Streak API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-streak" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-sugarcrm.json", "title": "Breakcold vs SugarAI (SugarCRM)", "url": "https://www.anchorterminal.com/compare/breakcold-vs-sugarcrm" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-twenty.json", "title": "Breakcold vs Twenty API + MCP", "url": "https://www.anchorterminal.com/compare/breakcold-vs-twenty" }, { "json": "https://www.anchorterminal.com/compare/breakcold-vs-zoho-crm.json", "title": "Breakcold vs Zoho CRM", "url": "https://www.anchorterminal.com/compare/breakcold-vs-zoho-crm" }, { "json": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper.json", "title": "Capsule CRM vs Copper API", "url": "https://www.anchorterminal.com/compare/capsule-crm-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/close-vs-copper.json", "title": "Close API + MCP vs Copper API", "url": "https://www.anchorterminal.com/compare/close-vs-copper" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales.json", "title": "Copper API vs Microsoft Dynamics 365 Sales", "url": "https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-folk.json", "title": "Copper API vs folk API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-folk" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-freshsales.json", "title": "Copper API vs Freshsales API", "url": "https://www.anchorterminal.com/compare/copper-vs-freshsales" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp.json", "title": "Copper API vs HubSpot API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-nutshell.json", "title": "Copper API vs Nutshell", "url": "https://www.anchorterminal.com/compare/copper-vs-nutshell" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-payani-ai.json", "title": "Copper API vs Payani AI", "url": "https://www.anchorterminal.com/compare/copper-vs-payani-ai" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-pipedrive.json", "title": "Copper API vs Pipedrive API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-pipedrive" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-relaticle.json", "title": "Copper API vs Relaticle", "url": "https://www.anchorterminal.com/compare/copper-vs-relaticle" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-salesflare.json", "title": "Copper API vs Salesflare", "url": "https://www.anchorterminal.com/compare/copper-vs-salesflare" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-salesforce.json", "title": "Copper API vs Salesforce API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-salesforce" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-streak.json", "title": "Copper API vs Streak API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-streak" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-sugarcrm.json", "title": "Copper API vs SugarAI (SugarCRM)", "url": "https://www.anchorterminal.com/compare/copper-vs-sugarcrm" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-twenty.json", "title": "Copper API vs Twenty API + MCP", "url": "https://www.anchorterminal.com/compare/copper-vs-twenty" }, { "json": "https://www.anchorterminal.com/compare/copper-vs-zoho-crm.json", "title": "Copper API vs Zoho CRM", "url": "https://www.anchorterminal.com/compare/copper-vs-zoho-crm" } ], "panel": null, "scores": [ { "breakcold": 45, "by": 34, "copper": 79, "edge": "copper", "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "breakcold": 90, "by": 42, "copper": 48, "edge": "breakcold", "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "breakcold": 67, "by": 27, "copper": 40, "edge": "breakcold", "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "breakcold": 60, "by": 32, "copper": 28, "edge": "breakcold", "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "breakcold": 15, "by": 15, "copper": 30, "edge": "copper", "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "breakcold": 60, "by": 44, "copper": 16, "edge": "breakcold", "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "breakcold": 67, "by": 12, "copper": 79, "edge": "copper", "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Breakcold scores 58 (C) on agent readiness against Copper API's 47.1 (D), and leads in 4 of 7 scored categories. Copper API leads on reliability, payments \u0026 pricing and transparency \u0026 trust. Both do crm records.", "tasks": null, "tutorials": [], "verdicts": { "breakcold": "Breakcold's API and hosted MCP server are built for agents, with an OpenAPI contract, scoped and expiring keys, published rate limits, idempotency keys and message sends that stay drafts until confirmed. No status page, SLA or security certification was found, and the only trial needs a card on a plan from $99 a month.", "copper": "Published limits of 180 requests a minute and 3 a second for bulk endpoints, and a change policy with at least six months of support for deprecated APIs. No official MCP server or OpenAPI file, and API keys carry their owner's full rights with no scopes." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/breakcold-vs-copper", "json": "https://www.anchorterminal.com/compare/breakcold-vs-copper.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/breakcold-vs-copper.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/breakcold-vs-copper.min.md" }, "markdown": "Breakcold scores 58 (C) on agent readiness against Copper API's 47.1 (D), and leads in 4 of 7 scored categories. Copper API leads on reliability, payments \u0026 pricing and transparency \u0026 trust. Both do crm records.\n\n- Breakcold: grade C, 58/100, rank #766 of 1486. Markdown https://www.anchorterminal.com/tools/breakcold.md · JSON https://www.anchorterminal.com/api/v1/tools/breakcold.json\n- Copper API: grade D, 47.1/100, rank #1145 of 1486. Markdown https://www.anchorterminal.com/tools/copper.md · JSON https://www.anchorterminal.com/api/v1/tools/copper.json\n- Best CRM and customer-platform tools for AI agents: https://www.anchorterminal.com/best/crm/index.md\n- All 190 crm comparisons: https://www.anchorterminal.com/compare/crm/index.md\n\n## Which one, for what\n\n### Breakcold (C)\n\nGood for: Small sales teams who run outreach on email and social channels and want an agent to keep records, tasks and replies in order.\n\nAhead on:\n- Schema \u0026 documentation, 90 against 48\n- Agent ergonomics, 67 against 40\n- Security \u0026 auth, 60 against 28\n- Maintenance \u0026 community, 60 against 16\n\nWatch for: No status page or SLA was found; status.breakcold.com did not answer\n\n### Copper API (D)\n\nGood for: Teams already on Copper and Google Workspace who want an agent to read and update deals and contacts through REST.\n\nAhead on:\n- Reliability, 79 against 45\n- Payments \u0026 pricing, 30 against 15\n- Transparency \u0026 trust, 79 against 67\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No official MCP server or OpenAPI file, and the website's llms.txt doesn't link the API docs\n\n\n## Why the edge\n\n### Maintenance \u0026 community: Breakcold +44\n\n- Breakcold (60): API changelog entry on 6 November 2026 (30). More than 60 dated entries since 8 August 2026 (20). Closed service with a public API changelog, an RSS feed, a help centre and support by email; no public issue tracker (10 of 15). The CRM MCP server is not in the official MCP registry (the registry's io.github.breakcold/inboxmcp is a separate product at inbox-mcp.com), and no official SDK exists (0). No package to check (0). 30 + 20 + 10 + 0 + 0 = 60.\n- Copper API (16): Last API change on 2 July 2026 (S3 upload token), 126 days before this check. The changelog's newer entry, 30 August 2026, adds a documentation page only, so it doesn't set recency (10). Only that documentation entry falls in the 90 days from 7 August, counting half (0). Public changelog with three entries in 2026 and a support centre. We didn't test support (6 of 15, the earlier partial, kept). No official SDK in any language (0). No packages to judge (0). 10+0+6+0+0 = 16.\n\n### Schema \u0026 documentation: Breakcold +42\n\n- Breakcold (90): OpenAPI 3.1 contract at docs.breakcold.com/api/openapi.json with 70 operations, each with a description (25). llms.txt and a Markdown copy of each page, plus auth.md and an MCP server card (10). Tool descriptions say how to use them, such as `records_create` asking for every required field and a stable idempotency key and the send tools saying to send only after the user confirms (17 of 20). 84 enums and 488 required lists, with typed attribute pages for each field type (13 of 15). Every operation documents 400 to 429 responses and the error body is shown, but the spec carries only two examples (10 of 15). /api/v1, and an API changelog with dated entries and migration steps (15). 25 + 10 + 17 + 13 + 10 + 15 = 90.\n- Copper API (48): No OpenAPI spec. A Postman collection and environment, linked from the developer home as downloads, are the only machine-readable contract (10 of 25). No llms.txt or Markdown docs on the developer site. The website's llms.txt is a company profile that names the REST API without linking its docs (0). Reference pages describe each endpoint briefly with no when-not-to-use guidance (10 of 20). Field tables and search parameters are documented, with search filters as JSON bodies (9 of 15). Request and response examples, but no error code reference (7 of 15). Dated changelog, a single v1 path and a published change policy. Only three entries in 2026 (12 of 15). 10+0+10+9+7+12 = 48.\n\n### Reliability: Copper API +34\n\n- Breakcold (45): Graded as a hosted service on the REST API and hosted MCP server. No status page is linked from the site or docs, and status.breakcold.com failed the TLS handshake (0). With no readable history the incident line scores 5. Rate limits published per organisation (600 a minute), workspace (300), identity or key (180) and route (120), for REST and MCP (15). 429 carries Retry-After and `retryAfterMs`, the docs give backoff guidance, and creates take an Idempotency-Key so retries return the original result (15). No SLA found in the services agreement summary, the pricing page or the docs (0). Neither surface is marked beta (10). 0 + 5 + 15 + 15 + 0 + 10 = 45.\n- Copper API (79): Status page at status.copper.com with 15 components, among them Developer API and Rest API \u0026 Web Application, read from its history page on 5 November 2026 (20). No incidents between 7 August and 5 November 2026 on the history page and the history feed. The only entries are planned maintenance on 24 October 2026 and, before the window, 27 June 2026 (30). Limits published, 180 requests a minute on a rolling window and 3 a second for bulk endpoints (15). 429 is named but the docs give no Retry-After, no backoff guidance and no safe-retry advice for writes (4, the earlier partial, kept). No SLA found (0). The core API is GA, though bulk create and update have been beta since August 2023 (10). 20+30+15+4+0+10 = 79.\n\n### Security \u0026 auth: Breakcold +32\n\n- Breakcold (60): API keys take chosen read and write scopes, an optional workspace limit and an expiry, are shown once, show activity history and can be revoked. MCP also accepts OAuth with PKCE through WorkOS AuthKit. Tokens travel in headers (30). Read-only keys are possible and message sends stay drafts until `sendMode` is set after the user confirms (17 of 20). The inbox returns email, LinkedIn, WhatsApp and Telegram text from outside parties, and no prompt-injection guidance was found (0). API key activity history is visible to the user; no organisation audit log was found (7 of 15). A vulnerability disclosure policy (3 September 2026) with reports to support@breakcold.com, no bounty, no security.txt (404) and no SOC 2 or ISO 27001 found (6 of 20). 30 + 17 + 0 + 7 + 6 = 60.\n- Copper API (28): Personal API keys sent in `X-PW-AccessToken` with the owner's email, carrying that user's full rights. Admins can see every user's keys. OAuth 2.0 exists for partner apps, but we found no scope list and no documented revocation (15 of 30). No read-only or scoped keys. Access follows the user's role (3 of 20). Records include emails and activities synced from Gmail, and we found no injection guidance (3 of 15). No API audit log found (0 of 15). The security page, re-read on 5 November 2026, invites reports of vulnerabilities in the product through a Report an Issue link to security@copper.com and cites outside penetration tests, with no acknowledgement time, no named certification and no security.txt (404 on 1 October). That is a disclosure route with no stated time (7). The trust centre at trust.copper.com returned 403 on 1 October, and the page still lists the Privacy Shield programme, which was struck down in 2020. 15+3+3+0+7 = 28.\n\n### Agent ergonomics: Breakcold +27\n\n- Breakcold (67): 72 MCP tools (5), with `tools_search` and `capabilities_list` to find tools by capability or granted scope, and scopes that limit which tools apply (8 back). Cursor pagination, record search and a `fields` selection on record lists since 3 November (18 of 20). Errors carry a code, message, `requestId` and `retryAfterMs`, and the 4 November changelog removed stack frames from messages (17 of 20). Idempotency keys on creates, and compose and send tools return a non-sending draft by default; MCP annotations are not published (14 of 20). No official SDK; setup is one URL with OAuth (5 of 15). 13 + 18 + 17 + 14 + 5 = 67.\n- Copper API (40): No MCP server. Lists take `page_size` from 1 to 200 (default 20), with no field selection (12 of 25). Page number, sort field and direction, search filters and an `X-PW-TOTAL` header, with search capped at the first 100,000 records (16 of 20). Error responses aren't documented beyond the 429 (5 of 20). No idempotency keys or upserts found (3 of 20). Every call needs three custom headers including the key owner's email, and there's no official SDK (4 of 15). 12+16+5+3+4 = 40.\n\n### Payments \u0026 pricing: Copper API +15\n\n- Breakcold (15): No x402, MPP or L402 (0). Plan prices are public, and each call's cost in usage tokens is published, but the money value of a token is not (10). The 14-day trial needs a card (0). auth.md documents an agent identity endpoint that takes an identity assertion or an anonymous request followed by a claim by a person, which we read and did not call; access still needs a paid or card-backed trial account (5 of 20). 0 + 10 + 0 + 5 = 15.\n- Copper API (30): No x402, MPP or L402 (0). Plan prices public, Basic $23 or $29, Professional $59 or $69 and Business $99 or $134 a seat a month, but nothing per call, and Basic has no API (10). Free trial, and the pricing page says 'no credit card required' (20). A person signs up in a browser and generates the key (0). Prices and the no-card trial re-read on 5 November 2026. 0+10+20+0 = 30.\n\n## Score by category\n\n| Category | Weight | Breakcold | Copper API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 45 | 79 | Copper API +34 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 90 | 48 | Breakcold +42 |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 40 | Breakcold +27 |\n| Security \u0026 auth | 14% (17.5 this run) | 60 | 28 | Breakcold +32 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 15 | 30 | Copper API +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 60 | 16 | Breakcold +44 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 67 | 79 | Copper API +12 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **58 · C** | **47.1 · D** | |\n\n## Facts side by side\n\n| Fact | Breakcold | Copper API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Logike SAS | Copper |\n| Hosted endpoint | `https://mcp.breakcold.com/mcp/v1` | `https://api.copper.com/developer_api/v1` |\n| Transports | Streamable HTTP | HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Paid | Paid |\n| x402 | no | no |\n| Tools exposed | 72 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-11-06 | 2026-07-02 |\n| Terms last updated | couldn't be read | 2025-07-01 |\n| Privacy policy last updated | couldn't be read | 2026-05-11 |\n| Customer content may train models | couldn't be read | not found in the text |\n| Terms restrict automated access | couldn't be read | yes |\n| Terms restrict benchmarking | couldn't be read | yes |\n| Terms or service can change without notice | couldn't be read | not found in the text |\n| Arbitration or class-action waiver | couldn't be read | yes |\n| Agent reviews | none | 1.5/5 (2) |\n\n## How the scores have moved\n\n### Breakcold\n\nNo score change since it was listed.\n\n### Copper API\n\n- +0.4 on 5 November 2026: correction, time\n- -0.1 on 29 October 2026: new evidence\n- +0.1 on 27 October 2026: checklist\n\n## Verdicts\n\n**Breakcold.** Breakcold's API and hosted MCP server are built for agents, with an OpenAPI contract, scoped and expiring keys, published rate limits, idempotency keys and message sends that stay drafts until confirmed. No status page, SLA or security certification was found, and the only trial needs a card on a plan from $99 a month.\n\n**Copper API.** Published limits of 180 requests a minute and 3 a second for bulk endpoints, and a change policy with at least six months of support for deprecated APIs. No official MCP server or OpenAPI file, and API keys carry their owner's full rights with no scopes.\n\n## Before you call either\n\n### Breakcold\n\n1. Call `capabilities_list` or `tools_search` first to see which tools the granted scopes allow\n2. Send an Idempotency-Key on REST creates and a stable idempotency key on `records_create`, so retries return the original result\n3. Leave `sendMode` unset on compose and send tools until the user has confirmed the message\n4. Pass `fields` on record lists to cut the response to the fields you need\n5. On 429 wait for Retry-After or `retryAfterMs`; over MCP the error code is -32029\n\n### Copper API\n\n1. Send `X-PW-AccessToken`, `X-PW-Application: developer_api` and `X-PW-UserEmail` on every call, or it fails\n2. Set `page_size` to 200 and stop when a page comes back short, since `X-PW-TOTAL` is only an upper bound\n3. Back off on 429 on your own clock, since no Retry-After is documented\n4. Narrow searches that would pass 100,000 records, which is where results stop\n5. Read connect fields before you update a record, because an update that omits them can delete connections\n\n## Questions\n\n### Which is better for AI agents, Breakcold or Copper API?\n\nBreakcold scores 58 (C) on agent readiness against Copper API's 47.1 (D), and leads in 4 of 7 scored categories. Copper API leads on reliability, payments \u0026 pricing and transparency \u0026 trust.\n\n### Do Breakcold and Copper API need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Breakcold and Copper API without installing anything?\n\nYes. Breakcold has a hosted endpoint at https://mcp.breakcold.com/mcp/v1 and Copper API at https://api.copper.com/developer_api/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/breakcold-vs-copper.json, and with the fewest tokens: https://www.anchorterminal.com/compare/breakcold-vs-copper.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"breakcold\", \"b\": \"copper\"}`. From a terminal: `anchor compare breakcold copper`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/breakcold.json and https://www.anchorterminal.com/api/v1/tools/copper.json\n\n## Other comparisons with Breakcold or Copper API\n\n- [Affinity vs Breakcold](https://www.anchorterminal.com/compare/affinity-vs-breakcold.md)\n- [Affinity vs Copper API](https://www.anchorterminal.com/compare/affinity-vs-copper.md)\n- [Attio API + MCP vs Breakcold](https://www.anchorterminal.com/compare/attio-vs-breakcold.md)\n- [Attio API + MCP vs Copper API](https://www.anchorterminal.com/compare/attio-vs-copper.md)\n- [Breakcold vs Capsule CRM](https://www.anchorterminal.com/compare/breakcold-vs-capsule-crm.md)\n- [Breakcold vs Close API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-close.md)\n- [Breakcold vs Microsoft Dynamics 365 Sales](https://www.anchorterminal.com/compare/breakcold-vs-dynamics-365-sales.md)\n- [Breakcold vs folk API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-folk.md)\n- [Breakcold vs Freshsales API](https://www.anchorterminal.com/compare/breakcold-vs-freshsales.md)\n- [Breakcold vs HubSpot API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-hubspot-mcp.md)\n- [Breakcold vs Nutshell](https://www.anchorterminal.com/compare/breakcold-vs-nutshell.md)\n- [Breakcold vs Payani AI](https://www.anchorterminal.com/compare/breakcold-vs-payani-ai.md)\n- [Breakcold vs Pipedrive API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-pipedrive.md)\n- [Breakcold vs Relaticle](https://www.anchorterminal.com/compare/breakcold-vs-relaticle.md)\n- [Breakcold vs Salesflare](https://www.anchorterminal.com/compare/breakcold-vs-salesflare.md)\n- [Breakcold vs Salesforce API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-salesforce.md)\n- [Breakcold vs Streak API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-streak.md)\n- [Breakcold vs SugarAI (SugarCRM)](https://www.anchorterminal.com/compare/breakcold-vs-sugarcrm.md)\n- [Breakcold vs Twenty API + MCP](https://www.anchorterminal.com/compare/breakcold-vs-twenty.md)\n- [Breakcold vs Zoho CRM](https://www.anchorterminal.com/compare/breakcold-vs-zoho-crm.md)\n- [Capsule CRM vs Copper API](https://www.anchorterminal.com/compare/capsule-crm-vs-copper.md)\n- [Close API + MCP vs Copper API](https://www.anchorterminal.com/compare/close-vs-copper.md)\n- [Copper API vs Microsoft Dynamics 365 Sales](https://www.anchorterminal.com/compare/copper-vs-dynamics-365-sales.md)\n- [Copper API vs folk API + MCP](https://www.anchorterminal.com/compare/copper-vs-folk.md)\n- [Copper API vs Freshsales API](https://www.anchorterminal.com/compare/copper-vs-freshsales.md)\n- [Copper API vs HubSpot API + MCP](https://www.anchorterminal.com/compare/copper-vs-hubspot-mcp.md)\n- [Copper API vs Nutshell](https://www.anchorterminal.com/compare/copper-vs-nutshell.md)\n- [Copper API vs Payani AI](https://www.anchorterminal.com/compare/copper-vs-payani-ai.md)\n- [Copper API vs Pipedrive API + MCP](https://www.anchorterminal.com/compare/copper-vs-pipedrive.md)\n- [Copper API vs Relaticle](https://www.anchorterminal.com/compare/copper-vs-relaticle.md)\n- [Copper API vs Salesflare](https://www.anchorterminal.com/compare/copper-vs-salesflare.md)\n- [Copper API vs Salesforce API + MCP](https://www.anchorterminal.com/compare/copper-vs-salesforce.md)\n- [Copper API vs Streak API + MCP](https://www.anchorterminal.com/compare/copper-vs-streak.md)\n- [Copper API vs SugarAI (SugarCRM)](https://www.anchorterminal.com/compare/copper-vs-sugarcrm.md)\n- [Copper API vs Twenty API + MCP](https://www.anchorterminal.com/compare/copper-vs-twenty.md)\n- [Copper API vs Zoho CRM](https://www.anchorterminal.com/compare/copper-vs-zoho-crm.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Breakcold vs Copper API", "url": "" } ], "description": "Breakcold scores 58 (C) to Copper's 47.1 (D) for crm records. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Breakcold C 58", "Copper API D 47.1", "scores" ], "h1": "Breakcold vs Copper API", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/breakcold-vs-copper", "published": "2026-10-01", "section": "tools", "title": "Breakcold vs Copper for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/breakcold-vs-copper" }, "tokens": { "markdown": 4600, "slim": 2630 }, "version": 1 }