# Cosmic

> Cosmic is a hosted headless CMS with a REST API, a TypeScript SDK, a CLI and a hosted MCP server. Agents read and write objects, media and object types, generate media, and can create a project by agent signup.

- Canonical: https://www.anchorterminal.com/tools/cosmic
- Pricing: https://www.anchorterminal.com/tools/cosmic#pricing
- Reviews: https://www.anchorterminal.com/tools/cosmic#reviews
- Markdown: https://www.anchorterminal.com/tools/cosmic.md (~6,700 tokens)
- Slim: https://www.anchorterminal.com/tools/cosmic.min.md (~1,530 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/tools/cosmic.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT cosmic.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-07

## Overview

**Grade BB · 72.5/100 · rank #123 of 1486 · #3 in CMS & website publishing · agent-ready · confidence medium**


## Assessment

Cosmic gives agents 24 annotated MCP tools with when-to-use descriptions, a read-only mode by key, documented limits and an agent signup API that returns working keys before a human claims the project. It holds no SOC 2 or ISO certification by its own statement, and read keys can travel in the URL.

## Facts

| Field | Value |
| --- | --- |
| Vendor | Cosmic Inc. (https://www.cosmicjs.com) |
| Kind | HTTP API |
| Category | CMS & website publishing (https://www.anchorterminal.com/categories/cms) |
| Transport | HTTP, Streamable HTTP, stdio |
| Endpoint | `https://mcp.cosmicjs.com/v1/buckets/{bucket_slug}` |
| Auth | API key · Each bucket has a read key and a write key, rotatable independently. The hosted MCP server takes `Authorization: Bearer READ_KEY` for read-only tools or `READ_KEY:WRITE_KEY` for full access; the write key can also go in `X-Cosmic-Write-Key`. The REST API takes the read key as `read_key` in the query or as a Bearer token on GET. POST /v3/agents/sign-up on dapi.cosmicjs.com needs no authentication and returns bucket keys for a new unclaimed project tied to a human's email. |
| Pricing | Freemium ($99 / mo) · Free plan at $0 with 1 bucket, 10,000 objects and 250,000 non-cached API requests a month, no card. Builder $99 a month, Team $299, Business $499, Small Workspace $999 and Large Workspace $2,999, with 10 per cent off yearly; Enterprise by quote. Webhooks, localisation and revision history are paid add-ons. Workspace plans have a 30-day trial. |
| x402 | No · No x402, MPP or L402 in llms.txt, the OpenAPI spec, the MCP docs or pricing.md (checked 2026-11-06). An unclaimed or over-limit bucket returns 402 with no payment requirements. |
| Licence | unknown |
| Tools exposed | 24 |
| Packages | npm: `@cosmicjs/mcp`; npm: `@cosmicjs/sdk`; npm: `@cosmicjs/cli` |
| MCP registry name | `com.cosmicjs/mcp` |
| Source | https://github.com/cosmicjs/mcp |
| Docs | https://www.cosmicjs.com/docs |
| llms.txt | https://www.cosmicjs.com/llms.txt |
| Last release | 2026-11-02 |
| npm downloads / week | 295 |
| Surface listed | The hosted MCP server at mcp.cosmicjs.com, the bucket REST API at api.cosmicjs.com/v3 and the agent signup API at dapi.cosmicjs.com, read from www.cosmicjs.com (llms.txt, Markdown docs, openapi.json, pricing.md, security, terms, privacy, changelog), the cosmicjs/mcp repository, the MCP registry and the status page on 6 November 2026. No account was made and no tool was called |
| MCP tools | Objects (list, get, create, update, delete), media, object types and AI generation of text, images, video and audio into the media library, plus cosmic_agent_signup and two related tools on the agent scope |
| Drafts and revisions | Objects have draft and published status; revisions are kept for 30 to 365 days by plan, and reading or restoring them needs the Revision History add-on |
| Limits | 100 non-cached requests a second, burst 200, 30-second timeout, 6 MB request and response size, 900 MB uploads; monthly request quotas by plan |
| Data location | Content in a replicated MongoDB Atlas cluster, per the security FAQ |
| Legal entity | Cosmic Inc., per the MCP server's MIT licence; the terms and privacy policy say Cosmic JS, Plano, Texas |
| Capabilities | cms.content, cms.assets, cms.schema, cms.publish, cms.localisation |
| Tags | official, hosted, mcp, remote-mcp, mcp-registry, openapi, llms-txt, free-tier, no-card, status-page, webhooks, typescript, cli, closed-source |
| JSON | https://www.anchorterminal.com/api/v1/tools/cosmic.json |

## Score breakdown (methodology v0.7, October 2026 research run)

Assessed 2026-11-06 from public evidence against the published checklist (https://www.anchorterminal.com/benchmark/#checklist). Confidence: medium. Performance and Task success pending (no score, not in the total); the total is Σ(score × weight) ÷ 80 over the 7 assessed categories. "This run" is each category's share of the 100 points.

| Category | Weight | This run | Score (0–100) | Points |
| --- | --- | --- | --- | --- |
| Reliability | 16% | 20 | 90 | 18.0 |
| Performance | 10% | pending | pending | n/a |
| Schema & documentation | 13% | 16.2 | 88 | 14.3 |
| Agent ergonomics | 13% | 16.2 | 82 | 13.3 |
| Security & auth | 14% | 17.5 | 47 | 8.2 |
| Payments & pricing | 10% | 12.5 | 45 | 5.6 |
| Task success | 10% | pending | pending | n/a |
| Maintenance & community | 7% | 8.8 | 86 | 7.5 |
| Transparency & trust (editorial 53, provenance 73) | 7% | 8.8 | 63 | 5.5 |
| Negative events | up to −15 | up to −15 | none recorded | 0 |
| **Total** | | | | **72.5 → BB** |

### Why each score

- Reliability 90 (checked 2026-11-06): 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.
- Performance: Pending. Latency is measured per call by our probes, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until the first probe window closes.
- Schema & documentation 88 (checked 2026-11-06): 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.
- Agent ergonomics 82 (checked 2026-11-06): 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.
- Security & auth 47 (checked 2026-11-06): 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.
- Payments & pricing 45 (checked 2026-11-06): 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.
- Task success: Pending. Task success needs the category task suites run through each tool, which haven't run yet, so this run doesn't score it. Its weight is shared across the assessed categories until then. A data provider's data-quality score is published on its listing now and becomes half of this category when it's scored.
- Maintenance & community 86 (checked 2026-11-06): 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.
- Transparency & trust 63 (checked 2026-11-06): A closed service; the MCP server is MIT (18 of 30). Terms and privacy policy of 13 January 2025 give general retention, and the security FAQ says data is kept indefinitely unless deletion is requested; storage in MongoDB Atlas is disclosed (15 of 30). Some fields are marked deprecated in v3 and the changelog is dated; no deprecation policy (8 of 20). The security page answers who the sub-processors are, but that answer wasn't readable in the page source (12 of 20). 18+15+8+12 = 53.

Fix list, everything this grade says the listing lacks, the biggest gain first (16 items). What it covers is at https://www.anchorterminal.com/fixes/cosmic.md (JSON https://www.anchorterminal.com/fixes/cosmic.json). The whole list for a coding agent comes from `POST https://www.anchorterminal.com/api/v1/fix-list` with `{"listing": "cosmic", "plan": "read"}`, free while the beta runs

### What we couldn't check

- Disclosure. On 6 November 2026 we read cosmicjs.statuspage.io/api/v2/incidents.json and components.json before reading robots.txt, which disallows /api/ on that host. The empty September to November months were then confirmed on the allowed /history page.
- unchecked: the sub-processor list, which the security page's FAQ holds in a form we couldn't read
- unchecked: the SLA page referenced from the security page
- unchecked: GitHub issue activity, because the GitHub API refused us for its rate limit
- The official MCP registry lists com.cosmicjs/mcp 1.6.0 while the repository is at v1.7.1

### Sources

- MCP server docs: <https://www.cosmicjs.com/docs/mcp-server.md> (seen 2026-11-06)
- agent signup API: <https://www.cosmicjs.com/docs/api/agents.md> (seen 2026-11-06)
- OpenAPI spec: <https://www.cosmicjs.com/openapi.json> (seen 2026-11-06)
- request limits: <https://www.cosmicjs.com/docs/api/request-limits.md> (seen 2026-11-06)
- errors: <https://www.cosmicjs.com/docs/api/errors.md> (seen 2026-11-06)
- revisions: <https://www.cosmicjs.com/docs/api/revisions.md> (seen 2026-11-06)
- llms.txt: <https://www.cosmicjs.com/llms.txt> (seen 2026-11-06)
- pricing: <https://www.cosmicjs.com/pricing.md> (seen 2026-11-06)
- security page: <https://www.cosmicjs.com/security> (seen 2026-11-06)
- status history: <https://cosmicjs.statuspage.io/history> (seen 2026-11-06)
- changelog: <https://www.cosmicjs.com/changelog> (seen 2026-11-06)
- MCP repository: <https://github.com/cosmicjs/mcp> (seen 2026-11-06)
- MCP registry entry: <https://registry.modelcontextprotocol.io/v0/servers?search=com.cosmicjs> (seen 2026-11-06)
- terms: <https://www.cosmicjs.com/terms-of-service> (seen 2026-11-06)

## Score history

Every move of a score since the listing was graded, newest first, with its cause. A score can't move without an entry here. JSON: https://www.anchorterminal.com/api/v1/tools/cosmic/history.json

- 2026-11-06: graded 72.5 BB (methodology 0.7)

## Who's behind it (provenance 73/100, checked 2026-11-06)

| Check | Finding | Points |
| --- | --- | --- |
| Legal entity named | Cosmic Inc. | 20/20 |
| Domain age | cosmicjs.com, no registry record we could read | 0/15 |
| Endpoint on the vendor's domain | mcp.cosmicjs.com | 15/15 |
| Terms of service | read, states 4 of the 7 things a reader expects, and has 1 clause that costs points | 5.4/10 |
| Privacy policy | read, states 6 of the 8 things a reader expects | 8.5/10 |
| Status page | cosmicstatus.com | 10/10 |
| Changelog | published | 10/10 |
| security.txt | not found | 0/10 |
| People named | 1 named with their role, 1 with a public profile | 10/10 |
| Support route | a support address, help pages, a community | 5/5 |

The terms and privacy policy were last updated on 13 January 2025 and name Cosmic JS at 3208 Bonniebrook Dr, Plano, Texas. The MCP server's licence names Cosmic Inc.

The terms forbid using a robot or spider to copy or scrape the website without written permission; recorded as a fact. www.cosmicjs.com/robots.txt allows all crawlers, including ClaudeBot, except /api/, /search, /community/members/ and /v3/.

www.cosmicjs.com/.well-known/security.txt returned 404. The security page asks for vulnerability reports at support@cosmicjs.com.

cosmicstatus.com redirects to a Statuspage at cosmicjs.statuspage.io with API and Web Dashboard components.

### Terms and privacy, as read

A reading by a fixed set of rules, each answered with the vendor's own sentence. Not legal advice.

**Terms of service** (https://www.cosmicjs.com/terms-of-service), read 2026-11-06, gives no date, states 4 of the 7 things a reader expects.

- To know. Restricts automated access (costs points). "(iii) use an automatic device (such as a robot or spider) or manual process to copy or “scrape” the Website or Website Content for any purpose without our express written permission;"
- To know. Requires arbitration or waives class actions. "TO THE EXTENT ALLOWED BY LAW, WE EACH WAIVE ANY RIGHT TO TRIAL BY JURY IN ANY LAWSUIT, ARBITRATION OR OTHER PROCEEDING."
- Not found in the text. Gives the date it was last updated.
- Names the governing law or courts. The law of the State of Texas.
- Not found in the text. States a limit on its liability.
- Says how changes to the terms are announced. Says it gives notice of a change.
- Not found in the text. Refers to a service level or uptime commitment.

**Privacy policy** (https://www.cosmicjs.com/privacy-policy), read 2026-11-06, gives no date, states 6 of the 8 things a reader expects.

- Not found in the text. Gives the date it was last updated.
- Says how long data is kept. For as long as needed, with no period named.
- Gives a privacy contact. support@cosmicjs.com.
- Not found in the text. Says where data is transferred or stored.

## Humans behind the project (researched 2026-11-06 from public pages, not part of the grade)

### Key people

- Tony Spiro, Founder and CEO, Cosmic. LinkedIn: https://www.linkedin.com/in/tonyspiro/. X: https://x.com/tonyspiro. GitHub: https://github.com/tonyspiro
- Note: Cosmic's Y Combinator page (Winter 2019 batch, status Active, read 6 November 2026) names Tony Spiro as Founder/CEO and links his LinkedIn and X accounts; his GitHub profile, a public member of the cosmicjs organisation, reads "CEO @cosmicjs". He bylines the blog. The about page names no leaders. Dallas Innovates reported on 10 November 2017 that Tony Spiro and Carson Gibbons co-founded Cosmic JS and that it was finishing a $250,000 angel round including "several founding members of Stripe"; Carson Gibbons's current role isn't on a first-hand page and the angels aren't named, so neither is listed. Y Combinator is the only named investor found. No total raised is given because no source states one for all rounds. The MCP licence names Cosmic Inc. and the terms and privacy policy Cosmic JS in Plano, Texas.
- Cosmic Inc.: LinkedIn https://www.linkedin.com/company/cosmicjs X https://x.com/cosmicjs GitHub https://github.com/cosmicjs

### Ownership and investors

- Backed by: Y Combinator

### Getting support

- Discord: https://discord.gg/MSCwQ7D6Mg
- Support email: support@cosmicjs.com
- Help: https://www.cosmicjs.com/docs
- Help: https://cosmicstatus.com
- Sources: https://www.cosmicjs.com/about, https://www.cosmicjs.com/security, https://www.cosmicjs.com/privacy-policy, https://github.com/cosmicjs/mcp, https://www.ycombinator.com/companies/cosmic, https://dallasinnovates.com/cosmic-js-completes-250k-angel-investment-round/, https://github.com/tonyspiro

## Live (updated 2026-11-07 17:49 UTC)

- Right now: up, HTTP 401, 449 ms, checked 2026-11-07 17:49 UTC (get on `https://mcp.cosmicjs.com/v1/buckets/{bucket_slug}`, asks for auth)
- Uptime 24h 100.0% (195 probes) · 30 days 100.0% (195 probes) · p50 451 ms · p95 541 ms
- Vendor status page: not read, no machine-readable status found
- github `cosmicjs/mcp` v1.7.1, released 2026-11-02
- npm `@cosmicjs/cli` 1.12.0
- npm `@cosmicjs/mcp` 1.7.1
- npm `@cosmicjs/sdk` 2.4.0
- security.txt: none
- Watching changelog <https://www.cosmicjs.com/changelog>
- Watching privacy <https://www.cosmicjs.com/privacy-policy>
- Watching terms <https://www.cosmicjs.com/terms-of-service>
- Always current: https://www.anchorterminal.com/api/v1/live/cosmic.json

## Probe metrics

Not measured yet. Our benchmark probes haven't run, so there's no availability, latency or error rate from a run and Performance is pending. Live uptime, where we poll the endpoint, is under Live and doesn't change the score.

## Prices

| Item | Price | Unit | Note |
| --- | --- | --- | --- |
| Builder plan | $99 | per month (plan) | 3 buckets, 50,000 objects, 1 million non-cached requests; $89 a month yearly |
| Team plan | $299 | per month (plan) | 5 buckets, 100,000 objects, 2 million non-cached requests |
| Business plan | $499 | per month (plan) | 10 buckets, 250,000 objects, 5 million non-cached requests |

Across all listings: https://www.anchorterminal.com/prices/index.md

## Strengths

- Agent signup API provisions a project and bucket with keys, idempotent per email and agent
- 24 MCP tools with readOnlyHint and destructiveHint, and descriptions that say when to use each
- Leaving out the write key gives read-only MCP access
- OpenAPI spec, llms.txt and Markdown docs with an error model and per-code retry guidance
- Free plan with no card and published prices and quotas for every paid plan

## Weaknesses

- No SOC 2, ISO 27001 or HIPAA certification, by the security page's own statement
- The REST API accepts the read key as a URL query parameter
- Revision history, webhooks and localisation are paid add-ons
- The OpenAPI spec covers 21 operations, fewer than the documented API
- Data is kept indefinitely unless deletion is requested



## Before you call it (notes for agents)

1. Send only the read key in the Bearer token unless the task needs writes
2. Use cosmic_agent_signup when the user has no Cosmic account, and hand the human the claim URL within 14 days
3. Fix and don't retry on 400; wait and retry on 429
4. Use props, depth=0 and cursor pagination with `after` to stay under the 6 MB response limit
5. Confirm with the user before cosmic_objects_delete, which deletes permanently

## Connect

Install:

```bash
npx @cosmicjs/mcp
```

First request:

```bash
curl -X POST https://dapi.cosmicjs.com/v3/agents/sign-up -H "Content-Type: application/json" -d '{"human_email":"you@example.com","project_name":"Recipe Blog","agent_id":"my-agent"}'
```

MCP client configuration:

```json
{
  "mcpServers": {
    "cosmic": {
      "headers": {
        "Authorization": "Bearer your-read-key:your-write-key"
      },
      "url": "https://mcp.cosmicjs.com/v1/buckets/your-bucket-slug"
    }
  }
}
```

Through letme: https://letme.dev/cosmic. letme answers with the pick and how to call it direct. How it works: https://www.anchorterminal.com/letme/index.md

## Similar tools

Ranked by shared capabilities, then score. Same-category tools with no shared capability key are listed last.

| Tool | Grade | Score | Rank | Shared capabilities | x402 | Markdown |
| --- | --- | --- | --- | --- | --- | --- |
| DatoCMS | BB | 74.4 | 85 | cms.content, cms.publish, cms.assets, cms.localisation, cms.schema | no | https://www.anchorterminal.com/tools/datocms.md |
| Sanity | BB | 72.7 | 120 | cms.content, cms.publish, cms.assets, cms.schema, cms.localisation | no | https://www.anchorterminal.com/tools/sanity.md |
| Kontent.ai | BB | 70.6 | 193 | cms.content, cms.publish, cms.assets, cms.localisation, cms.schema | no | https://www.anchorterminal.com/tools/kontent-ai.md |
| Webflow | BB | 70.4 | 199 | cms.content, cms.publish, cms.assets, cms.schema, cms.localisation | no | https://www.anchorterminal.com/tools/webflow.md |
| Strapi | B | 67.7 | 308 | cms.content, cms.publish, cms.localisation, cms.assets, cms.schema | no | https://www.anchorterminal.com/tools/strapi.md |
| Hygraph | B | 67.4 | 323 | cms.content, cms.publish, cms.assets, cms.localisation, cms.schema | no | https://www.anchorterminal.com/tools/hygraph.md |

## Panel reviews (0)

Reviewed by the Anchor panel (https://www.anchorterminal.com/reviewers/index.md): .

Desk reviews, written from public documentation, pricing, terms, source and status history on 1 October 2026. No calls made. For a desk review, the outcome says whether the reviewer's questions could be answered from public material: success, partial or failure. How reviews work: https://www.anchorterminal.com/reviews/how-it-works.md

## Notable

- 21 bucket tools for objects, media, object types and AI generation, plus 3 agent-signup tools on a separate /v1/agent endpoint; descriptions say when to use each tool, and cosmic_objects_delete says never to call it speculatively (source: <https://www.cosmicjs.com/docs/mcp-server.md>)
- Agent signup provisions a project and bucket without an account; it is idempotent for the same email and agent_id, the bucket is restricted until the human enters an emailed code, and an unclaimed project is deleted after 14 days (source: <https://www.cosmicjs.com/docs/api/agents.md>)
- Published in the official MCP registry as com.cosmicjs/mcp 1.6.0 on 31 July 2026; the repository's newest tag is v1.7.1 of 2 November 2026 (source: <https://registry.modelcontextprotocol.io/v0/servers?search=com.cosmicjs>)
- API limits of 100 non-cached requests a second with a burst of 200, a 30-second timeout and 6 MB responses (source: <https://www.cosmicjs.com/docs/api/request-limits.md>)
- The security page says Cosmic doesn't hold SOC 2, ISO 27001 or HIPAA certification (source: <https://www.cosmicjs.com/security>)
- MCP tools carry readOnlyHint and destructiveHint annotations in src/tools/annotations.ts (source: <https://github.com/cosmicjs/mcp>)

- #3 of 17 in Best headless CMS and website publishing for AI agents: https://www.anchorterminal.com/best/cms/index.md
- All 136 cms comparisons: https://www.anchorterminal.com/compare/cms/index.md

## Compare

- [BCMS vs Cosmic](https://www.anchorterminal.com/compare/bcms-vs-cosmic.md): F 33.5 vs BB 72.5
- [ButterCMS vs Cosmic](https://www.anchorterminal.com/compare/buttercms-vs-cosmic.md): D 51.4 vs BB 72.5
- [Contentstack vs Cosmic](https://www.anchorterminal.com/compare/contentstack-vs-cosmic.md): B 66.4 vs BB 72.5
- [Cosmic vs DatoCMS](https://www.anchorterminal.com/compare/cosmic-vs-datocms.md): BB 72.5 vs BB 74.4
- [Cosmic vs Directus](https://www.anchorterminal.com/compare/cosmic-vs-directus.md): BB 72.5 vs C 58.1
- [Cosmic vs dotCMS](https://www.anchorterminal.com/compare/cosmic-vs-dotcms.md): BB 72.5 vs C 57.7
- [Cosmic vs Ghost](https://www.anchorterminal.com/compare/cosmic-vs-ghost.md): BB 72.5 vs D 51.2
- [Cosmic vs Hygraph](https://www.anchorterminal.com/compare/cosmic-vs-hygraph.md): BB 72.5 vs B 67.4
- [Cosmic vs Kontent.ai](https://www.anchorterminal.com/compare/cosmic-vs-kontent-ai.md): BB 72.5 vs BB 70.6
- [Cosmic vs Payload](https://www.anchorterminal.com/compare/cosmic-vs-payload.md): BB 72.5 vs D 50.1
- [Cosmic vs Prismic](https://www.anchorterminal.com/compare/cosmic-vs-prismic.md): BB 72.5 vs C 56
- [Cosmic vs Sanity](https://www.anchorterminal.com/compare/cosmic-vs-sanity.md): BB 72.5 vs BB 72.7
- [Cosmic vs Storyblok](https://www.anchorterminal.com/compare/cosmic-vs-storyblok.md): BB 72.5 vs B 64.8
- [Cosmic vs Strapi](https://www.anchorterminal.com/compare/cosmic-vs-strapi.md): BB 72.5 vs B 67.7
- [Cosmic vs Webflow](https://www.anchorterminal.com/compare/cosmic-vs-webflow.md): BB 72.5 vs BB 70.4
- [Cosmic vs WordPress](https://www.anchorterminal.com/compare/cosmic-vs-wordpress.md): BB 72.5 vs C 58.8

## Verify this listing

For the vendor. The badge or a plain link to this page verifies the listing, from a page on cosmicjs.com or one of its subdomains, or the README at the root of github.com/cosmicjs/mcp. It shows the listing is the vendor's and that the vendor knows it's here, and it never changes a grade, rank or review. The vendor sends the page's address to `POST https://www.anchorterminal.com/api/v1/verify` as `{"slug": "cosmic", "url": "…"}`, or calls the `verify_listing` tool at https://www.anchorterminal.com/mcp. We fetch the page once, then again every week; two failed checks in a row and the verification lapses, and a later pass restores it. What we check: https://www.anchorterminal.com/builders/index.md#verify

HTML badge:

```html
<a href="https://www.anchorterminal.com/tools/cosmic"><img src="https://www.anchorterminal.com/badges/cosmic.svg" alt="Cosmic on Anchor Terminal" height="20"></a>
```

Markdown badge, for a README:

```markdown
[![Cosmic on Anchor Terminal](https://www.anchorterminal.com/badges/cosmic.svg)](https://www.anchorterminal.com/tools/cosmic)
```

Plain link:

```html
<a href="https://www.anchorterminal.com/tools/cosmic">Cosmic on Anchor Terminal</a>
```

## Share this listing

For the vendor. Sharing assets for social media, two PNGs of 1200 × 630 that say Cosmic is listed on Anchor Terminal, with the vendor's logo and this page's address and no grade or score.

- Dark: https://www.anchorterminal.com/assets/share/cosmic-dark.png
- Light: https://www.anchorterminal.com/assets/share/cosmic-light.png

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp
