daraja-b2b SKILL.md skillA
daraja-b2b from mr-macharia/mpesa-daraja-skills-and-mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mr-macharia/mpesa-daraja-skills-and-mcp/daraja-b2b@git:20261020.f2e8fadPins git:20261020.f2e8fad in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mr-macharia/mpesa-daraja-skills-and-mcp
- Path
skills/daraja-b2b/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261020.f2e8fad, committed Oct 20, 2026
- First version recorded
- Oct 19, 2026
- Size
- 3,532 bytes
- Repository stars
- 3
- License
- MIT
Implements Safaricom Daraja B2B payments between shortcodes: BusinessPayBill (to a Paybill and account), BusinessBuyGoods (to a Till), BusinessPayToBulk (top up a B2C utility account) and B2B Express Checkout (a USSD push asking a merchant's till operator to pay your Paybill). Covers identifier types, the initiator and SecurityCredential, and Result handling. Use when one business pays another business, a supplier, or its own disbursement account.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# B2B: Business to Business
## Payment request
`POST /mpesa/b2b/v1/paymentrequest`
```json
{
"Initiator": "testapi",
"SecurityCredential": "<encrypted>",
"CommandID": "BusinessPayBill",
"SenderIdentifierType": "4",
"RecieverIdentifierType": "4",
"Amount": 1000,
"PartyA": "600992",
"PartyB": "600000",
"AccountReference": "INV-778",
"Requester": "254712345678",
"Remarks": "Supplier invoice 778",
"QueueTimeOutURL": "https://example.com/payments/b2b/timeout",
"ResultURL": "https://example.com/payments/b2b/result"
}
```
`RecieverIdentifierType` is spelled exactly as Daraja spells it.
| CommandID | PartyB | RecieverIdentifierType | AccountReference |
|---|---|---|---|
| BusinessPayBill | Paybill | 4 | Account number at the receiver |
| BusinessBuyGoods | Till | 2 | Any reference |
| BusinessPayToBulk | Your B2C shortcode | 4 | Any reference. Moves MMF/working funds into the B2C utility account. The initiator needs the "Org Business Pay to Bulk API initiator" role |
| PayTaxToKRA | 572572 | 4 | KRA PRN, sent to a different endpoint (see `daraja-tax-remittance`) |
- `Requester` is optional: the customer's phone, for the record.
…Read the whole file at its exact version.
How to install
mdr add mr-macharia/mpesa-daraja-skills-and-mcp/daraja-b2b@sha256:0065c3572009a606The line at the top of this page pins the label git:20261020.f2e8fad, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qvwpkv5uyiron446)
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Versions
The registry has recorded 5 versions of this file, between Oct 19, 2026 and Oct 20, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261020.f2e8fad latest | 2026-10-20 | f2e8fad | 3,532 B | A | view · diff |
| git:20261020.7cb1e56 | 2026-10-20 | 7cb1e56 | 3,544 B | A | view · diff |
| git:20261020.312e4eb | 2026-10-20 | 312e4eb | 3,542 B | A | view · diff |
| git:20261019.9e3c915 | 2026-10-19 | 9e3c915 | 3,558 B | A | view · diff |
| git:20261019.15b8109 | 2026-10-19 | 15b8109 | 2,225 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3532 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mr-macharia/mpesa-daraja-skills-and-mcp · 3 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qvwpkv5uyiron446 GET https://markdownregistry.com/api/v1/resolve?ref=mr-macharia/mpesa-daraja-skills-and-mcp/daraja-b2b GET https://markdownregistry.com/api/v1/blob/0065c3572009a60617bc2b91a46c6f27b18ded1251443dcfa7f84186903f2d37
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.