Cosmic vs Hygraph

Cosmic 86

MCP server v1.7.1 was tagged on 2 November 2026 (30). v1.7.0 on 9 September and v1.7.1, plus changelog entries on 14 and 31 August, 1, 8, 10, 22 and 23 September and 5 and 9 October 2026 (20). A dated changelog, a Discord server and support email; GitHub issue activity wasn't read because the GitHub API refused us for its rate limit (12 of 25). com.cosmicjs/mcp in the official MCP registry under a domain namespace, though the registry has 1.6.0 while the repository is at 1.7.1 (15). CI, deploy and publish workflows in the MCP repository (9 of 10). 30+20+12+15+9 = 86.

Hygraph 64

The changelog's newest entry is still 30 September 2026, 32 days before 1 November, and no newer dated change was found (20). In the 90 days from 3 August, entries on 31 August and 30 September and @hygraph/management-sdk 1.6.1 on 19 August, per the 8 October check of npm, not re-read on 1 November (20). Public changelog, a community Slack, in-app chat and email support on Growth. The SDK's GitHub repository shows no commit since 13 September 2024 (9 of 15). The Management SDK was current on npm on 8 October. The official MCP registry still returns no Hygraph entry (11). The public repository does not carry the 2026 npm releases, so CI could not be seen (4).

Cosmic 47

Separate read and write keys per bucket, rotatable independently (25), less 10 because the docs give read_key as a query parameter on GET (15 of 30). Read-only MCP access by leaving out the write key, four user roles on every plan, and a delete tool told not to run speculatively; no approval step (14 of 20). Objects hold text written by people and AI generation writes into the bucket; no prompt-injection guidance was found (3 of 15). An append-only audit log of security-relevant actions on Workspace or Pro plans (10 of 15). No SOC 2, ISO 27001 or HIPAA by the security page's own statement, no security.txt, reports to support email (5 of 20). 15+14+3+10+5 = 47.

Hygraph 63

Permanent Auth Tokens are JWTs sent as a Bearer header, each limited by model, stage, locale, environment and action, with separate Management API permissions, and deleting one invalidates it. No expiry or rotation was found. The global MCP endpoint uses OAuth through auth.hygraph.com with PKCE and a registration endpoint, with access following the user's own permissions (25 of 30). New tokens start with no permissions, MCP token presets include read-only and content-only, MCP rejects delete and unpublish, and public API access is off by default. The API itself has no confirmation step (17). The docs warn against always allowing execute_graphql. No guidance on treating stored content as untrusted input was found (5). Audit logs are Enterprise only with 90 days of retention and record the token that made a change (7). The site states SOC 2 Type 2 and ISO 27001 certified hosting. /.well-known/security.txt answered 404, no disclosure policy or bounty was found, and the trust report on app.drata.com answered 403 (9).

Cosmic 88

openapi.json at www.cosmicjs.com covers 21 operations on 12 paths, each with a summary, a description and documented 401, 402, 404, 429 and 500 responses, though the docs describe more endpoints than it covers (revisions, AI, search); MCP tools have typed inputs (20 of 25). llms.txt and every docs page as Markdown (10). Tool descriptions say when to use each tool and when not to, such as never calling delete speculatively (18 of 20). 11 enums in the spec, typed metafields and validation messages (11 of 15). Examples on every API page and an error model with a sample (14 of 15). API v3 paths and a dated changelog (15). 20+10+18+11+14+15 = 88.

Hygraph 78

GraphQL introspection is on by default for each project's Content API, so the contract is machine-readable and specific to the project. The Management API answered 401 to an introspection query without a token, and no static schema file was found (20 of 25). A root llms.txt with a Markdown copy of every docs section under /llms-full/ (10). The Management SDK page states when to use it and when not to, and the MCP tools reference gives each of 19 tools one line with a warning on execute_graphql (15). Inputs are typed per model with enums and required fields. Rich Text takes an AST and JSON fields are free-form (13). Request and response examples throughout, and an errors page for nine HTTP statuses. Error bodies carry a message only, with no code list (10). The endpoint path carries /v2/ and the changelog is public and dated. No API versioning policy was found (10).

Cosmic 82

24 tools, in the 11 to 30 band (15), plus 5 because omitting the write key gives a read-only subset (20 of 25). limit, props, depth, cursor pagination with after, status and locale filters (20). Status codes with specific messages and fix-or-retry guidance per code (17 of 20). readOnlyHint and destructiveHint on the MCP tools; no idempotency keys for writes, though agent signup is idempotent (14 of 20). Few required parameters, a TypeScript SDK and a CLI, no SDK in a second language found (11 of 15). 20+20+17+14+11 = 82.

Hygraph 72

GraphQL field selection sizes every response, first defaults to 10 and is capped at 100, and the MCP tool list_entities takes a limit and field selection. The project MCP endpoint lists 17 tools (22 of 25). first, last, skip, before and after, Relay connections, typed where filters and ordering (20). Errors use documented HTTP statuses and a requestId, with free-text messages and no machine code (11). No idempotency keys. upsert mutations key on a unique field, batch migrations apply all or nothing with a dry_run on the MCP tool, and MCP rejects delete and unpublish. We couldn't read the tool annotations (12). Only the Bearer header is required and any GraphQL client works. The one official SDK covers the Management API in JavaScript and TypeScript (7).

Cosmic 45

No x402, MPP or L402 (0). Plan prices and quotas are public, with add-ons; no per-call price (10). Free plan with no card (20). Agent signup returns working bucket keys with no human signup; the human claims the project by emailed code within 14 days, so partial (15 of 20). 0+10+20+15 = 45.

Hygraph 35

No x402, MPP or L402 (0). Growth is $199 a month, with overage of $0.20 per 10,000 API operations and per GB of asset traffic. Enterprise is priced through sales (15). The Hobby plan needs no card and includes 500,000 API calls a month (20). A person signs up in a browser by email or social login and creates the token in Studio (0).

Cosmic 90

Graded on the hosted service with the hosted lines. Statuspage at cosmicstatus.com with API and Web Dashboard components (20). The history page shows no incidents in September, October or November 2026, and the newest incident in the feed is from 26 May 2025. The MCP server isn't a component, so 25 of 30. 100 requests a second with a burst of 200, timeouts and size limits are documented (15). 429 is documented and the error page says which codes to fix and not retry; no Retry-After guidance was found. Agent signup is idempotent (12 of 15). The security page says Enterprise has an SLA from 99.95 per cent uptime; the SLA page itself wasn't read (8 of 10). Hosted MCP is announced as available now, with no beta label (10). 20+25+15+12+8+10 = 90.

Hygraph 83

Graded on the GraphQL Content and Management APIs, with the hosted MCP server noted. Public status page at status.hygraph.com, now on incident.io, with the API, the Content API cache and the asset CDN for 11 regions (20). In the 90 days to 1 November 2026 its feed lists two incidents, both partial outages. On 7 August new sign-ups were unavailable for 36 minutes (11:38 to 12:14 UTC) with existing users unaffected, and on 16 October cache invalidation for the Content API in the AP South 1 shared region was delayed for 1 hour 47 minutes (09:13 to 11:01 UTC). Each hit one function or one region, so both read as minor (20 of 30). Rate limits published by plan as uncached requests a second (5, 25, up to 500) and concurrent operations (15). The docs give exponential backoff guidance with sample code. Retry-After is documented only for asset transformation limits, and there are no idempotency keys (10). The pricing page lists an Enterprise uptime SLA of up to 99.95%. The SLA document was not found (8). The APIs and the MCP server carry no beta label (10).